Update docker completion (#5354)

* Update the docker completion script with the official docker zsh completion script
* Update README

plugins/docker/README.md

 ## Docker autocomplete plugin
 
-- Adds autocomplete options for all docker commands.
-- Will also show containerIDs and Image names where applicable
-
-####Shows help for all commands
-![General Help](http://i.imgur.com/tUBO9jh.png "Help for all commands")
-
-
-####Shows your downloaded images where applicable
-![Images](http://i.imgur.com/R8ZsWO1.png "Images")
-
-
-####Shows your running containers where applicable
-![Containers](http://i.imgur.com/WQtbheg.png "Containers")
-
-
-
-Maintainer : Ahmed Azaan ([@aeonazaan](https://twitter.com/aeonazaan))
+A copy of the completion script from the
+[docker](https://github.com/docker/docker/tree/master/contrib/completion/zsh)
+git repo.

plugins/docker/_docker

-#compdef docker
+#compdef docker dockerd
+#
+# zsh completion for docker (http://docker.com)
+#
+# version:  0.3.0
+# github:   https://github.com/felixr/docker-zsh-completion
+#
+# contributors:
+#   - Felix Riedel
+#   - Steve Durrheimer
+#   - Vincent Bernat
+#
+# license:
+#
+# Copyright (c) 2013, Felix Riedel
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
 
-# Docker autocompletion for oh-my-zsh
-# Requires: Docker installed
-# Author: Azaan (@aeonazaan)
-# Updates: Bob Maerten (@bobmaerten) for Docker v0.9+
-#          Paul van den Berg (@bergvandenp) for Docker v1.3+ 
+# Short-option stacking can be enabled with:
+#  zstyle ':completion:*:*:docker:*' option-stacking yes
+#  zstyle ':completion:*:*:docker-*:*' option-stacking yes
+__docker_arguments() {
+    if zstyle -t ":completion:${curcontext}:" option-stacking; then
+        print -- -s
+    fi
+}
+
+__docker_get_containers() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local kind type line s
+    declare -a running stopped lines args names
+
+    kind=$1; shift
+    type=$1; shift
+    [[ $kind = (stopped|all) ]] && args=($args -a)
+
+    lines=(${(f)"$(_call_program commands docker $docker_options ps --format 'table' --no-trunc $args)"})
+
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1 # Last column, should go to the end of the line
+    lines=(${lines[2,-1]})
+
+    # Container ID
+    if [[ $type = (ids|all) ]]; then
+        for line in $lines; do
+            s="${${line[${begin[CONTAINER ID]},${end[CONTAINER ID]}]%% ##}[0,12]}"
+            s="$s:${(l:15:: :::)${${line[${begin[CREATED]},${end[CREATED]}]/ ago/}%% ##}}"
+            s="$s, ${${${line[${begin[IMAGE]},${end[IMAGE]}]}/:/\\:}%% ##}"
+            if [[ ${line[${begin[STATUS]},${end[STATUS]}]} = Exit* ]]; then
+                stopped=($stopped $s)
+            else
+                running=($running $s)
+            fi
+        done
+    fi
+
+    # Names: we only display the one without slash. All other names
+    # are generated and may clutter the completion. However, with
+    # Swarm, all names may be prefixed by the swarm node name.
+    if [[ $type = (names|all) ]]; then
+        for line in $lines; do
+            names=(${(ps:,:)${${line[${begin[NAMES]},${end[NAMES]}]}%% *}})
+            # First step: find a common prefix and strip it (swarm node case)
+            (( ${#${(u)names%%/*}} == 1 )) && names=${names#${names[1]%%/*}/}
+            # Second step: only keep the first name without a /
+            s=${${names:#*/*}[1]}
+            # If no name, well give up.
+            (( $#s != 0 )) || continue
+            s="$s:${(l:15:: :::)${${line[${begin[CREATED]},${end[CREATED]}]/ ago/}%% ##}}"
+            s="$s, ${${${line[${begin[IMAGE]},${end[IMAGE]}]}/:/\\:}%% ##}"
+            if [[ ${line[${begin[STATUS]},${end[STATUS]}]} = Exit* ]]; then
+                stopped=($stopped $s)
+            else
+                running=($running $s)
+            fi
+        done
+    fi
 
+    [[ $kind = (running|all) ]] && _describe -t containers-running "running containers" running "$@" && ret=0
+    [[ $kind = (stopped|all) ]] && _describe -t containers-stopped "stopped containers" stopped "$@" && ret=0
+    return ret
+}
+
+__docker_stoppedcontainers() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_containers stopped all "$@"
+}
+
+__docker_runningcontainers() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_containers running all "$@"
+}
 
-# ----- Helper functions
-# Output a selectable list of all running docker containers
 __docker_containers() {
-    declare -a cont_cmd
-    cont_cmd=($(docker ps | awk 'NR>1{print $NF":[CON("$1")"$2"("$3")]"}'))
-    if [[  'X$cont_cmd' != 'X' ]]
-        _describe 'containers' cont_cmd
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_containers all all "$@"
+}
+
+__docker_containers_ids() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_containers all ids "$@"
 }
 
-# Output a selectable list of all containers, even not running
-__docker_all_containers() {
-    declare -a cont_cmd
-    cont_cmd=($(docker ps -a | awk 'NR>1{print $NF":[CON("$1")"$2"("$3")]"}'))
-    if [[  'X$cont_cmd' != 'X' ]]
-        _describe 'containers' cont_cmd
+__docker_containers_names() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_containers all names "$@"
+}
+
+__docker_complete_info_plugins() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    emulate -L zsh
+    setopt extendedglob
+    local -a plugins
+    plugins=(${(ps: :)${(M)${(f)${${"$(_call_program commands docker $docker_options info)"##*$'\n'Plugins:}%%$'\n'^ *}}:# $1: *}## $1: })
+    _describe -t plugins "$1 plugins" plugins && ret=0
+    return ret
 }
 
-# output a selectable list of all docker images
 __docker_images() {
-    declare -a img_cmd
-    img_cmd=($(docker images | awk 'NR>1{print $1}'| sed 's/:/\\:/g'))
-    _describe 'images' img_cmd
-}
-
-# ----- Commands
-# Seperate function for each command, makes extension easier later
-# ---------------------------
-__attach() {
-    _arguments \
-        '--no-stdin[Do not attach STDIN]' \
-        '--sig-proxy[Proxify all received signal to the process (even in non-tty mode)]'
-    __docker_containers
-}
-
-__build() {
-    _arguments \
-        '--no-cache[Do not use cache when building the image]' \
-        '(-q,--quiet)'{-q,--quiet}'[Suppress the verbose output generated by the containers]' \
-        '--rm[Remove intermediate containers after a successful build]' \
-        '(-t,--tag=)'{-t,--tag=}'[Repository name (and optionally a tag) to be applied to the resulting image in case of success]' \
-        '*:files:_files'
-}
-
-__commit() {
-    _arguments \
-        '(-a,--author=)'{-a,--author=}'[Author (e.g. "John Hannibal Smith <hannibal@a-team.com>")]' \
-        '(-c,--change=)'{-c,--change=}'[Apply Dockerfile instruction to the created image]' \
-        '(-m,--message=)'{-m,--message=}'[Commit message]' \
-        '(-p,--pause=)'{-p,--pause=}'[Pause container during commit]' \
-}
-
-__cp() {
-    __docker_containers
-}
-
-__create() {
-    _arguments \
-        '(-P,--publish-all=)'{-P,--publish-all=}'[Publish all exposed ports to the host interfaces]' \
-        '(-a,--attach=)'{-a,--attach=}'[Attach to STDIN, STDOUT or STDERR]' \
-        '--add-host=[Add a custom host-to-IP mapping]' \
-        '--cap-add=[Add Linux capabilities]' \
-        '--cap-drop=[Drop Linux capabilities]' \
-        '--cpuset-cpus=[CPUs in which to allow execution (0-3, 0,1)]' \
-        '(-c,--cpu-shares=)'{-c,--cpu-shares=}'[CPU shares (relative weight)]' \
-        '--cidfile=[Write the container ID to the file]' \
-        '--device=[Add a host device to the container]' \
-        '--dns=[Set custom dns servers]' \
-        '--dns-search=[Set custom DNS search domains]' \
-        '(-e,--env=)'{-e,--env=}'[Set environment variables]' \
-        '--env-file=[Read in a file of environment variables]' \
-        '--entrypoint=[Overwrite the default entrypoint of the image]' \
-        '--expose=[Expose a port from the container without publishing it to your host]' \
-        '(-h,--hostname=)'{-h,--hostname=}'[Container host name]' \
-        '(-i,--interactive=)'{-i,--interactive=}'[Keep STDIN open even if not attached]' \
-        '--ipc=[IPC namespace to use]' \
-        '(-l,--label=)'{-l,--label=}'[Set meta data on a container]' \
-        '--link=[Add link to another container (name:alias)]' \
-        '--log-driver=[Logging driver for the container]' \
-        '--lxc-conf=[Add custom LXC options]' \
-        '--mac-address=[Container MAC address (e.g. 92:d0:c6:0a:29:33)]' \
-        '(-m,--memory=)'{-m,--memory=}'[Memory limit (format: <number><optional unit>, where unit = b, k, m or g)]' \
-        '--net=[Set the Network mode for the container]' \
-        '--name=[Assign a name to the container]' \
-        '--pid=[PID namespace to use]' \
-        '(-p,--publish=)'{-p,--publish=}'[Publish a container''s port to the host (format: ip:hostPort:containerPort/protocol)]' \
-        '--privileged=[Give extended privileges to this container]' \
-        '--restart=[Restart policy to apply when a container exits]' \
-        '--security-opt=[Security Options]' \
-        '--sig-proxy=[Proxify all received signal to the process (even in non-tty mode)]' \
-        '(-t,--tty=)'{-t,--tty=}'[Allocate a pseudo-tty]' \
-        '(-u,--user=)'{-u,--user=}'[Username or UID]' \
-        '--ulimit=[Ulimit options]' \
-        '(-v,--volume=)'{-v,--volume=}'[Bind mount a volume (e.g. -v /host:/container or -v /container)]' \
-        '--volumes-from=[Mount volumes from the specified container(s)]' \
-        '(-w,--workdir=)'{-w,--workdir=}'[Working directory inside the container]'
-    __docker_images
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a images
+    images=(${${${(f)"$(_call_program commands docker $docker_options images)"}[2,-1]}/(#b)([^ ]##) ##([^ ]##) ##([^ ]##)*/${match[3]}:${(r:15:: :::)match[2]} in ${match[1]}})
+    _describe -t docker-images "images" images && ret=0
+    __docker_repositories_with_tags && ret=0
+    return ret
+}
+
+__docker_repositories() {
+    [[ $PREFIX = -* ]] && return 1
+    declare -a repos
+    repos=(${${${(f)"$(_call_program commands docker $docker_options images)"}%% *}[2,-1]})
+    repos=(${repos#<none>})
+    _describe -t docker-repos "repositories" repos
+}
+
+__docker_repositories_with_tags() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a repos onlyrepos matched
+    declare m
+    repos=(${${${${(f)"$(_call_program commands docker $docker_options images)"}[2,-1]}/ ##/:::}%% *})
+    repos=(${${repos%:::<none>}#<none>})
+    # Check if we have a prefix-match for the current prefix.
+    onlyrepos=(${repos%::*})
+    for m in $onlyrepos; do
+        [[ ${PREFIX##${~~m}} != ${PREFIX} ]] && {
+            # Yes, complete with tags
+            repos=(${${repos/:::/:}/:/\\:})
+            _describe -t docker-repos-with-tags "repositories with tags" repos && ret=0
+            return ret
+        }
+    done
+    # No, only complete repositories
+    onlyrepos=(${${repos%:::*}/:/\\:})
+    _describe -t docker-repos "repositories" onlyrepos -qS : && ret=0
+
+    return ret
+}
+
+__docker_search() {
+    [[ $PREFIX = -* ]] && return 1
+    local cache_policy
+    zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
+    if [[ -z "$cache_policy" ]]; then
+        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy
+    fi
+
+    local searchterm cachename
+    searchterm="${words[$CURRENT]%/}"
+    cachename=_docker-search-$searchterm
+
+    local expl
+    local -a result
+    if ( [[ ${(P)+cachename} -eq 0 ]] || _cache_invalid ${cachename#_} ) \
+        && ! _retrieve_cache ${cachename#_}; then
+        _message "Searching for ${searchterm}..."
+        result=(${${${(f)"$(_call_program commands docker $docker_options search $searchterm)"}%% *}[2,-1]})
+        _store_cache ${cachename#_} result
+    fi
+    _wanted dockersearch expl 'available images' compadd -a result
+}
+
+__docker_get_log_options() {
+    [[ $PREFIX = -* ]] && return 1
+
+    integer ret=1
+    local log_driver=${opt_args[--log-driver]:-"all"}
+    local -a awslogs_options fluentd_options gelf_options journald_options json_file_options syslog_options splunk_options
+
+    awslogs_options=("awslogs-region" "awslogs-group" "awslogs-stream")
+    fluentd_options=("env" "fluentd-address" "fluentd-async-connect" "fluentd-buffer-limit" "fluentd-retry-wait" "fluentd-max-retries" "labels" "tag")
+    gcplogs_options=("env" "gcp-log-cmd" "gcp-project" "labels")
+    gelf_options=("env" "gelf-address" "gelf-compression-level" "gelf-compression-type" "labels" "tag")
+    journald_options=("env" "labels" "tag")
+    json_file_options=("env" "labels" "max-file" "max-size")
+    syslog_options=("env" "labels" "syslog-address" "syslog-facility" "syslog-format" "syslog-tls-ca-cert" "syslog-tls-cert" "syslog-tls-key" "syslog-tls-skip-verify" "tag")
+    splunk_options=("env" "labels" "splunk-caname" "splunk-capath" "splunk-format" "splunk-index" "splunk-insecureskipverify" "splunk-source" "splunk-sourcetype" "splunk-token" "splunk-url" "splunk-verify-connection" "tag")
+
+    [[ $log_driver = (awslogs|all) ]] && _describe -t awslogs-options "awslogs options" awslogs_options "$@" && ret=0
+    [[ $log_driver = (fluentd|all) ]] && _describe -t fluentd-options "fluentd options" fluentd_options "$@" && ret=0
+    [[ $log_driver = (gcplogs|all) ]] && _describe -t gcplogs-options "gcplogs options" gcplogs_options "$@" && ret=0
+    [[ $log_driver = (gelf|all) ]] && _describe -t gelf-options "gelf options" gelf_options "$@" && ret=0
+    [[ $log_driver = (journald|all) ]] && _describe -t journald-options "journald options" journald_options "$@" && ret=0
+    [[ $log_driver = (json-file|all) ]] && _describe -t json-file-options "json-file options" json_file_options "$@" && ret=0
+    [[ $log_driver = (syslog|all) ]] && _describe -t syslog-options "syslog options" syslog_options "$@" && ret=0
+    [[ $log_driver = (splunk|all) ]] && _describe -t splunk-options "splunk options" splunk_options "$@" && ret=0
+
+    return ret
+}
+
+__docker_log_drivers() {
+    [[ $PREFIX = -*  ]] && return 1
+    integer ret=1
+    drivers=(awslogs etwlogs fluentd gcplogs gelf journald json-file none splunk syslog)
+    _describe -t log-drivers "log drivers" drivers && ret=0
+    return ret
+}
+
+__docker_log_options() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (syslog-format)
+                syslog_format_opts=('rfc3164' 'rfc5424' 'rfc5424micro')
+                _describe -t syslog-format-opts "Syslog format Options" syslog_format_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        __docker_get_log_options -qS "=" && ret=0
+    fi
+
+    return ret
+}
+
+__docker_complete_detach_keys() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    compset -P "*,"
+    keys=(${:-{a-z}})
+    ctrl_keys=(${:-ctrl-{{a-z},{@,'[','\\','^',']',_}}})
+    _describe -t detach_keys "[a-z]" keys -qS "," && ret=0
+    _describe -t detach_keys-ctrl "'ctrl-' + 'a-z @ [ \\\\ ] ^ _'" ctrl_keys -qS "," && ret=0
+}
+
+__docker_complete_pid() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local -a opts vopts
+
+    opts=('host')
+    vopts=('container')
+
+    if compset -P '*:'; then
+        case "${${words[-1]%:*}#*=}" in
+            (container)
+                __docker_runningcontainers && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        _describe -t pid-value-opts "PID Options with value" vopts -qS ":" && ret=0
+        _describe -t pid-opts "PID Options" opts && ret=0
+    fi
+
+    return ret
+}
+
+__docker_complete_runtimes() {
+    [[ $PREFIX = -*  ]] && return 1
+    integer ret=1
+
+    emulate -L zsh
+    setopt extendedglob
+    local -a runtimes_opts
+    runtimes_opts=(${(ps: :)${(f)${${"$(_call_program commands docker $docker_options info)"##*$'\n'Runtimes: }%%$'\n'^ *}}})
+    _describe -t runtimes-opts "runtimes options" runtimes_opts && ret=0
+}
+
+__docker_complete_ps_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (ancestor)
+                __docker_images && ret=0
+                ;;
+            (before|since)
+                __docker_containers && ret=0
+                ;;
+            (id)
+                __docker_containers_ids && ret=0
+                ;;
+            (name)
+                __docker_containers_names && ret=0
+                ;;
+            (network)
+                __docker_networks && ret=0
+                ;;
+            (status)
+                status_opts=('created' 'dead' 'exited' 'paused' 'restarting' 'running' 'removing')
+                _describe -t status-filter-opts "Status Filter Options" status_opts && ret=0
+                ;;
+            (volume)
+                __docker_volumes && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('ancestor' 'before' 'exited' 'id' 'label' 'name' 'network' 'since' 'status' 'volume')
+        _describe -t filter-opts "Filter Options" opts -qS "=" && ret=0
+    fi
+
+    return ret
+}
+
+__docker_complete_search_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a boolean_opts opts
+
+    boolean_opts=('true' 'false')
+    opts=('is-automated' 'is-official' 'stars')
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (is-automated|is-official)
+                _describe -t boolean-filter-opts "filter options" boolean_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__diff() {
-    __docker_containers
+__docker_complete_images_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a boolean_opts opts
+
+    boolean_opts=('true' 'false')
+    opts=('before' 'dangling' 'label' 'since')
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (before|since)
+                __docker_images && ret=0
+                ;;
+            (dangling)
+                _describe -t boolean-filter-opts "filter options" boolean_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        _describe -t filter-opts "Filter Options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__events() {    
-    _arguments \
-        '--since=[Show previously created events and then stream.]'
+__docker_complete_events_filter() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a opts
+
+    opts=('container' 'daemon' 'event' 'image' 'label' 'network' 'type' 'volume')
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (container)
+                __docker_containers && ret=0
+                ;;
+            (daemon)
+                emulate -L zsh
+                setopt extendedglob
+                local -a daemon_opts
+                daemon_opts=(
+                    ${(f)${${"$(_call_program commands docker $docker_options info)"##*$'\n'Name: }%%$'\n'^ *}}
+                    ${${(f)${${"$(_call_program commands docker $docker_options info)"##*$'\n'ID: }%%$'\n'^ *}}//:/\\:}
+                )
+                _describe -t daemon-filter-opts "daemon filter options" daemon_opts && ret=0
+                ;;
+            (event)
+                local -a event_opts
+                event_opts=('attach' 'commit' 'connect' 'copy' 'create' 'delete' 'destroy' 'detach' 'die' 'disconnect' 'exec_create' 'exec_detach'
+                'exec_start' 'export' 'import' 'kill' 'load'  'mount' 'oom' 'pause' 'pull' 'push' 'reload' 'rename' 'resize' 'restart' 'save' 'start'
+                'stop' 'tag' 'top' 'unmount' 'unpause' 'untag' 'update')
+                _describe -t event-filter-opts "event filter options" event_opts && ret=0
+                ;;
+            (image)
+                __docker_images && ret=0
+                ;;
+            (network)
+                __docker_networks && ret=0
+                ;;
+            (type)
+                local -a type_opts
+                type_opts=('container' 'daemon' 'image' 'network' 'volume')
+                _describe -t type-filter-opts "type filter options" type_opts && ret=0
+                ;;
+            (volume)
+                __docker_volumes && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__export() {
-   __docker_containers
+# BO network
+
+__docker_network_complete_ls_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (driver)
+                __docker_complete_info_plugins Network && ret=0
+                ;;
+            (id)
+                __docker_networks_ids && ret=0
+                ;;
+            (name)
+                __docker_networks_names && ret=0
+                ;;
+            (type)
+                type_opts=('builtin' 'custom')
+                _describe -t type-filter-opts "Type Filter Options" type_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('driver' 'id' 'label' 'name' 'type')
+        _describe -t filter-opts "Filter Options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__history() {
-    _arguments \
-        '--no-trunc=[Don''t truncate output]' \
-        '(-q,--quiet)'{-q,--quiet}'[Only show numeric IDs]'
-    __docker_images
+__docker_get_networks() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local line s
+    declare -a lines networks
+
+    type=$1; shift
+
+    lines=(${(f)"$(_call_program commands docker $docker_options network ls)"})
+
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1
+    lines=(${lines[2,-1]})
+
+    # Network ID
+    if [[ $type = (ids|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[NETWORK ID]},${end[NETWORK ID]}]%% ##}"
+            s="$s:${(l:7:: :::)${${line[${begin[DRIVER]},${end[DRIVER]}]}%% ##}}"
+            networks=($networks $s)
+        done
+    fi
+
+    # Names
+    if [[ $type = (names|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[NAME]},${end[NAME]}]%% ##}"
+            s="$s:${(l:7:: :::)${${line[${begin[DRIVER]},${end[DRIVER]}]}%% ##}}"
+            networks=($networks $s)
+        done
+    fi
+
+    _describe -t networks-list "networks" networks "$@" && ret=0
+    return ret
 }
 
-__images() {
-    _arguments \
-        '(-a,--all)'{-a,--all}'[Show all images (by default filter out the intermediate images used to build)]' \
-        '--no-trunc[Don''t truncate output]' \
-        '(-q,--quiet=)'{-q,--quiet=}'[Only show numeric IDs]' \
-        '(-t,--tree=)'{-t,--tree=}'[Output graph in tree format]' \
-        '(-v,--viz=)'{-v,--viz=}'[Output graph in graphviz format]'
-    __docker_images
+__docker_networks() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_networks all "$@"
 }
 
-__import() {
-    _arguments '*:files:_files'
+__docker_networks_ids() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_networks ids "$@"
 }
 
-__info() {
-    # no arguments
-}
-
-__inspect() {
-    __docker_images
-    __docker_all_containers
-}
-
-__kill() {
-    _arguments \
-        '(-s,--signal=)'{-s,--signal=}'[KILL Signal]'
-    __docker_containers
-}
-
-__load() {
-    _arguments '*:files:_files'
-}
-
-__login() {
-    _arguments \
-        '(-e,--email=)'{-e,-email=}'[Email]' \
-        '(-p,--password=)'{-p,-password=}'[Password]' \
-        '(-u,--username=)'{-u,-username=}'[Username]'
-}
-
-__logs() {
-    _arguments \
-        '(-f,--follow)'{-f,-follow}'[Follow log output]'
-    __docker_containers
-}
-
-__port() {
-    __docker_containers
-}
-
-__top() {
-    __docker_containers
-}
-
-__ps() {
-    _arguments \
-        '(-a,--all)'{-a,--all}'[Show all containers. Only running containers are shown by default.]' \
-        '--before-id=[Show only container created before Id, include non-running ones.]' \
-        '(-l,--latest)'{-l,--latest}'[Show only the latest created container, include non-running ones.]' \
-        '-n=[Show n last created containers, include non-running ones. default=-1.]' \
-        '--no-trunc[Don''t truncate output]' \
-        '(-q,--quiet)'{-q,--quiet}'[Only display numeric IDs]' \
-        '(-s,--size)'{-s,--size}'[Display sizes]' \
-        '--since-id=[Show only containers created since Id, include non-running ones.]'
+__docker_networks_names() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_get_networks names "$@"
 }
 
-__pull() {
-    _arguments \
-        '(-t,--tag=)'{-t,--tag=}'[Download tagged image in repository]'
+__docker_network_commands() {
+    local -a _docker_network_subcommands
+    _docker_network_subcommands=(
+        "connect:Connect a container to a network"
+        "create:Creates a new network with a name specified by the user"
+        "disconnect:Disconnects a container from a network"
+        "inspect:Displays detailed information on a network"
+        "ls:Lists all the networks created by the user"
+        "rm:Deletes one or more networks"
+    )
+    _describe -t docker-network-commands "docker network command" _docker_network_subcommands
 }
 
-__push() {
-    # no arguments
+__docker_network_subcommand() {
+    local -a _command_args opts_help
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+
+    case "$words[1]" in
+        (connect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*--alias=[Add network-scoped alias for the container]:alias: " \
+                "($help)--ip=[Container IPv4 address]:IPv4: " \
+                "($help)--ip6=[Container IPv6 address]:IPv6: " \
+                "($help)*--link=[Add a link to another container]:link:->link" \
+                "($help)*--link-local-ip=[Add a link-local address for the container]:IPv4/IPv6: " \
+                "($help -)1:network:__docker_networks" \
+                "($help -)2:containers:__docker_containers" && ret=0
+
+            case $state in
+                (link)
+                    if compset -P "*:"; then
+                        _wanted alias expl "Alias" compadd -E "" && ret=0
+                    else
+                        __docker_runningcontainers -qS ":" && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (create)
+            _arguments $(__docker_arguments) -A '-*' \
+                $opts_help \
+                "($help)*--aux-address[Auxiliary IPv4 or IPv6 addresses used by network driver]:key=IP: " \
+                "($help -d --driver)"{-d=,--driver=}"[Driver to manage the Network]:driver:(null host bridge overlay)" \
+                "($help)*--gateway=[IPv4 or IPv6 Gateway for the master subnet]:IP: " \
+                "($help)--internal[Restricts external access to the network]" \
+                "($help)*--ip-range=[Allocate container ip from a sub-range]:IP/mask: " \
+                "($help)--ipam-driver=[IP Address Management Driver]:driver:(default)" \
+                "($help)*--ipam-opt=[Custom IPAM plugin options]:opt=value: " \
+                "($help)--ipv6[Enable IPv6 networking]" \
+                "($help)*--label=[Set metadata on a network]:label=value: " \
+                "($help)*"{-o=,--opt=}"[Driver specific options]:opt=value: " \
+                "($help)*--subnet=[Subnet in CIDR format that represents a network segment]:IP/mask: " \
+                "($help -)1:Network Name: " && ret=0
+            ;;
+        (disconnect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:network:__docker_networks" \
+                "($help -)2:containers:__docker_containers" && ret=0
+            ;;
+        (inspect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " \
+                "($help -)*:network:__docker_networks" && ret=0
+            ;;
+        (ls)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--no-trunc[Do not truncate the output]" \
+                "($help)*"{-f=,--filter=}"[Provide filter values]:filter:->filter-options" \
+                "($help)--format=[Pretty-print networks using a Go template]:template: " \
+                "($help -q --quiet)"{-q,--quiet}"[Only display numeric IDs]" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_network_complete_ls_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (rm)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:network:__docker_networks" && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_network_commands" && ret=0
+            ;;
+    esac
+
+    return ret
 }
 
-__restart() {
-    _arguments \
-        '(-t,--time=)'{-t,--time=}'[Number of seconds to try to stop for before killing the container. Once killed it will then be restarted. Default=10]'
-    __docker_containers
+# EO network
+
+# BO node
+
+__docker_node_complete_ls_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (id)
+                __docker_complete_nodes_ids && ret=0
+                ;;
+            (membership)
+                membership_opts=('accepted' 'pending' 'rejected')
+                _describe -t membership-opts "membership options" membership_opts && ret=0
+                ;;
+            (name)
+                __docker_complete_nodes_names && ret=0
+                ;;
+            (role)
+                role_opts=('manager' 'worker')
+                _describe -t role-opts "role options" role_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('id' 'label' 'membership' 'name' 'role')
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__rm() {
-    _arguments \
-        '(-f,--force=)'{-f,--force=}'[Force removal of running container]' \
-        '(-l,--link=)'{-l,--link=}'[Remove the specified link and not the underlying container]' \
-        '(-v,--volumes=)'{-v,--volumes=}'[Remove the volumes associated to the container]'
-    __docker_all_containers
+__docker_node_complete_ps_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (desired-state)
+                state_opts=('accepted' 'running')
+                _describe -t state-opts "desired state options" state_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('desired-state' 'id' 'label' 'name')
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
 }
 
-__rmi() {
-    _arguments \
-        '(-f,--force=)'{-f,--force=}'[Force]'
-    __docker_images
+__docker_nodes() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local line s
+    declare -a lines nodes args
+
+    type=$1; shift
+    filter=$1; shift
+    [[ $filter != "none" ]] && args=("-f $filter")
+
+    lines=(${(f)"$(_call_program commands docker $docker_options node ls $args)"})
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1
+    lines=(${lines[2,-1]})
+
+    # Node ID
+    if [[ $type = (ids|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[ID]},${end[ID]}]%% ##}"
+            nodes=($nodes $s)
+        done
+    fi
+
+    # Names
+    if [[ $type = (names|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[NAME]},${end[NAME]}]%% ##}"
+            nodes=($nodes $s)
+        done
+    fi
+
+    _describe -t nodes-list "nodes" nodes "$@" && ret=0
+    return ret
+}
+
+__docker_complete_nodes() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes all none "$@"
+}
+
+__docker_complete_nodes_ids() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes ids none "$@"
+}
+
+__docker_complete_nodes_names() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes names none "$@"
+}
+
+__docker_complete_pending_nodes() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes all "membership=pending" "$@"
+}
+
+__docker_complete_manager_nodes() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes all "role=manager" "$@"
 }
 
-__run() {
-    _arguments \
-        '(-P,--publish-all=)'{-P,--publish-all=}'[Publish all exposed ports to the host interfaces]' \
-        '(-a,--attach=)'{-a,--attach=}'[Attach to STDIN, STDOUT or STDERR]' \
-        '--add-host=[Add a custom host-to-IP mapping]' \
-        '--cap-add=[Add Linux capabilities]' \
-        '--cap-drop=[Drop Linux capabilities]' \
-        '--cpuset-cpus=[CPUs in which to allow execution (0-3, 0,1)]' \
-        '(-c,--cpu-shares=)'{-c,--cpu-shares=}'[CPU shares (relative weight)]' \
-        '--cidfile=[Write the container ID to the file]' \
-        '(-d,--detach=)'{-d,--detach=}'[Run container in the background, print new container id]' \
-        '--device=[Add a host device to the container]' \
-        '--dns=[Set custom dns servers]' \
-        '--dns-search=[Set custom DNS search domains]' \
-        '(-e,--env=)'{-e,--env=}'[Set environment variables]' \
-        '--env-file=[Read in a file of environment variables]' \
-        '--entrypoint=[Overwrite the default entrypoint of the image]' \
-        '--expose=[Expose a port from the container without publishing it to your host]' \
-        '(-h,--hostname=)'{-h,--hostname=}'[Container host name]' \
-        '(-i,--interactive=)'{-i,--interactive=}'[Keep STDIN open even if not attached]' \
-        '--ipc=[IPC namespace to use]' \
-        '(-l,--label=)'{-l,--label=}'[Set meta data on a container]' \
-        '--link=[Add link to another container (name:alias)]' \
-        '--log-driver=[Logging driver for the container]' \
-        '--lxc-conf=[Add custom LXC options]' \
-        '--mac-address=[Container MAC address (e.g. 92:d0:c6:0a:29:33)]' \
-        '(-m,--memory=)'{-m,--memory=}'[Memory limit (format: <number><optional unit>, where unit = b, k, m or g)]' \
-        '--net=[Set the Network mode for the container]' \
-        '--name=[Assign a name to the container]' \
-        '--pid=[PID namespace to use]' \
-        '(-p,--publish=)'{-p,--publish=}'[Publish a container''s port to the host (format: ip:hostPort:containerPort/protocol)]' \
-        '--privileged=[Give extended privileges to this container]' \
-        '--restart=[Restart policy to apply when a container exits]' \
-        '--rm=[Automatically remove the container when it exits (incompatible with -d)]' \
-        '--security-opt=[Security Options]' \
-        '--sig-proxy=[Proxify all received signal to the process (even in non-tty mode)]' \
-        '(-t,--tty=)'{-t,--tty=}'[Allocate a pseudo-tty]' \
-        '(-u,--user=)'{-u,--user=}'[Username or UID]' \
-        '--ulimit=[Ulimit options]' \
-        '(-v,--volume=)'{-v,--volume=}'[Bind mount a volume (e.g. -v /host:/container or -v /container)]' \
-        '--volumes-from=[Mount volumes from the specified container(s)]' \
-        '(-w,--workdir=)'{-w,--workdir=}'[Working directory inside the container]'
-    __docker_images
-}
-
-__search() {
-    _arguments \
-        '--no-trunc=[Don''t truncate output]' \
-        '-s,--stars=)'{-s,--stars=}'[Only displays with at least xxx stars]' \
-        '-t,--trusted=)'{-t,--trusted=}'[Only show trusted builds]'
-}
-
-__save() {
-    __docker_images
-}
-
-__start() {
-    _arguments \
-        '(-a,--attach=)'{-a,--attach=}'[Attach container''s STDOUT/STDERR and forward all signals to the process]' \
-        '(-i,--interactive=)'{-i,--interactive=}'[Attach container''s STDIN]'
-    __docker_all_containers
-}
-
-__stats() {
-    __docker_containers
-}
-
-__stop() {
-    _arguments \
-        '(-t,--time=)'{-t,--time=}'[Number of seconds to wait for the container to stop before killing it.]'
-    __docker_containers
-}
-
-__tag() {
-    _arguments \
-        '(-f,--force=)'{-f,--force=}'[Force]'
-    __docker_images
-}
-
-__version() {
-    # no arguments
-}
-
-__wait() {
-    __docker_containers
-}
-
-__exec() {
-    _arguments \
-      '(-d,--detach=)'{-d,--detach=}'[Detached mode: run command in the background]' \
-      '(-i,--interactive=)'{-i,--interactive=}'[Keep STDIN open even if not attached]' \
-      '(-t,--tty=)'{-t,--tty=}'[Allocate a pseudo-TTY]'
-    __docker_containers
-}
-
-# end commands ---------
-# ----------------------
-
-local -a _1st_arguments
-_1st_arguments=(
-    "attach":"Attach to a running container"
-    "build":"Build a container from a Dockerfile"
-    "commit":"Create a new image from a container's changes"
-    "cp":"Copy files/folders from the containers filesystem to the host path"
-    "create":"Create new container without running it"
-    "diff":"Inspect changes on a container's filesystem"
-    "events":"Get real time events from the server"
-    "export":"Stream the contents of a container as a tar archive"
-    "history":"Show the history of an image"
-    "images":"List images"
-    "import":"Create a new filesystem image from the contents of a tarball"
-    "info":"Display system-wide information"
-    "inspect":"Return low-level information on a container"
-    "kill":"Kill a running container"
-    "load":"Load an image from a tar archive"
-    "login":"Register or Login to the docker registry server"
-    "logs":"Fetch the logs of a container"
-    "port":"Lookup the public-facing port which is NAT-ed to PRIVATE_PORT"
-    "ps":"List containers"
-    "pull":"Pull an image or a repository from the docker registry server"
-    "push":"Push an image or a repository to the docker registry server"
-    "restart":"Restart a running container"
-    "rm":"Remove one or more containers"
-    "rmi":"Remove one or more images"
-    "run":"Run a command in a new container"
-    "save":"Save an image to a tar archive"
-    "search":"Search for an image in the docker index"
-    "start":"Start a stopped container"
-    "stats":"Display a live stream of one or more containers' resource usage statistics"
-    "stop":"Stop a running container"
-    "tag":"Tag an image into a repository"
-    "top":"Lookup the running processes of a container"
-    "version":"Show the docker version information"
-    "wait":"Block until a container stops, then print its exit code"
-    "exec":"Run a task inside a running container"
-)
-
-_arguments '*:: :->command'
-
-if (( CURRENT == 1 )); then
-    _describe -t commands "docker command" _1st_arguments
+__docker_complete_worker_nodes() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_nodes all "role=worker" "$@"
+}
+
+__docker_node_commands() {
+    local -a _docker_node_subcommands
+    _docker_node_subcommands=(
+        "demote:Demote a node as manager in the swarm"
+        "inspect:Display detailed information on one or more nodes"
+        "ls:List nodes in the swarm"
+        "promote:Promote a node as manager in the swarm"
+        "rm:Remove one or more nodes from the swarm"
+        "ps:List tasks running on a node"
+        "update:Update a node"
+    )
+    _describe -t docker-node-commands "docker node command" _docker_node_subcommands
+}
+
+__docker_node_subcommand() {
+    local -a _command_args opts_help
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+
+    case "$words[1]" in
+        (rm|remove)
+             _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--force[Force remove an active node]" \
+                "($help -)*:node:__docker_complete_pending_nodes" && ret=0
+            ;;
+        (demote)
+             _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:node:__docker_complete_manager_nodes" && ret=0
+            ;;
+        (inspect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " \
+                "($help)--pretty[Print the information in a human friendly format]" \
+                "($help -)*:node:__docker_complete_nodes" && ret=0
+            ;;
+        (ls|list)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-f=,--filter=}"[Provide filter values]:filter:->filter-options" \
+                "($help -q --quiet)"{-q,--quiet}"[Only display IDs]" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_node_complete_ls_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (promote)
+             _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:node:__docker_complete_worker_nodes" && ret=0
+            ;;
+        (ps)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all)"{-a,--all}"[Display all instances]" \
+                "($help)*"{-f=,--filter=}"[Provide filter values]:filter:->filter-options" \
+                "($help)--no-resolve[Do not map IDs to Names]" \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -)1:node:__docker_complete_nodes" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_node_complete_ps_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (update)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--availability=[Availability of the node]:availability:(active pause drain)" \
+                "($help)*--label-add=[Add or update a node label]:key=value: " \
+                "($help)*--label-rm=[Remove a node label if exists]:label: " \
+                "($help)--role=[Role of the node]:role:(manager worker)" \
+                "($help -)1:node:__docker_complete_nodes" && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_node_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+# EO node
+
+# BO plugin
+
+__docker_complete_plugins() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local line s
+    declare -a lines plugins
+
+    lines=(${(f)"$(_call_program commands docker $docker_options plugin ls)"})
+
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1
+    lines=(${lines[2,-1]})
+
+    # Name
+    for line in $lines; do
+        s="${line[${begin[NAME]},${end[NAME]}]%% ##}"
+        s="$s:${(l:7:: :::)${${line[${begin[TAG]},${end[TAG]}]}%% ##}}"
+        plugins=($plugins $s)
+    done
+
+    _describe -t plugins-list "plugins" plugins "$@" && ret=0
+    return ret
+}
+
+__docker_plugin_commands() {
+    local -a _docker_plugin_subcommands
+    _docker_plugin_subcommands=(
+        "disable:Disable a plugin"
+        "enable:Enable a plugin"
+        "inspect:Return low-level information about a plugin"
+        "install:Install a plugin"
+        "ls:List plugins"
+        "push:Push a plugin"
+        "rm:Remove a plugin"
+        "set:Change settings for a plugin"
+    )
+    _describe -t docker-plugin-commands "docker plugin command" _docker_plugin_subcommands
+}
+
+__docker_plugin_subcommand() {
+    local -a _command_args opts_help
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+
+    case "$words[1]" in
+        (disable|enable|inspect|install|ls|push|rm)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:plugin:__docker_complete_plugins" && ret=0
+            ;;
+        (set)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:plugin:__docker_complete_plugins" \
+                "($help-)*:key=value: " && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_plugin_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+# EO plugin
+
+# BO service
+
+__docker_service_complete_ls_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (id)
+                __docker_complete_services_ids && ret=0
+                ;;
+            (name)
+                __docker_complete_services_names && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('id' 'label' 'name')
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
+}
+
+__docker_service_complete_ps_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (desired-state)
+                state_opts=('accepted' 'running')
+                _describe -t state-opts "desired state options" state_opts && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('desired-state' 'id' 'label' 'name')
+        _describe -t filter-opts "filter options" opts -qS "=" && ret=0
+    fi
+
+    return ret
+}
+
+__docker_services() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    local line s
+    declare -a lines services
+
+    type=$1; shift
+
+    lines=(${(f)"$(_call_program commands docker $docker_options service ls)"})
+
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1
+    lines=(${lines[2,-1]})
+
+    # Service ID
+    if [[ $type = (ids|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[ID]},${end[ID]}]%% ##}"
+            s="$s:${(l:7:: :::)${${line[${begin[IMAGE]},${end[IMAGE]}]}%% ##}}"
+            services=($services $s)
+        done
+    fi
+
+    # Names
+    if [[ $type = (names|all) ]]; then
+        for line in $lines; do
+            s="${line[${begin[NAME]},${end[NAME]}]%% ##}"
+            s="$s:${(l:7:: :::)${${line[${begin[IMAGE]},${end[IMAGE]}]}%% ##}}"
+            services=($services $s)
+        done
+    fi
+
+    _describe -t services-list "services" services "$@" && ret=0
+    return ret
+}
+
+__docker_complete_services() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_services all "$@"
+}
+
+__docker_complete_services_ids() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_services ids "$@"
+}
+
+__docker_complete_services_names() {
+    [[ $PREFIX = -* ]] && return 1
+    __docker_services names "$@"
+}
+
+__docker_service_commands() {
+    local -a _docker_service_subcommands
+    _docker_service_subcommands=(
+        "create:Create a new service"
+        "inspect:Display detailed information on one or more services"
+        "ls:List services"
+        "rm:Remove one or more services"
+        "scale:Scale one or multiple services"
+        "ps:List the tasks of a service"
+        "update:Update a service"
+    )
+    _describe -t docker-service-commands "docker service command" _docker_service_subcommands
+}
+
+__docker_service_subcommand() {
+    local -a _command_args opts_help opts_create_update
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+    opts_create_update=(
+        "($help)*--constraint=[Placement constraints]:constraint: "
+        "($help)--endpoint-mode=[Placement constraints]:mode:(dnsrr vip)"
+        "($help)*"{-e=,--env=}"[Set environment variables]:env: "
+        "($help)*--label=[Service labels]:label: "
+        "($help)--limit-cpu=[Limit CPUs]:value: "
+        "($help)--limit-memory=[Limit Memory]:value: "
+        "($help)--log-driver=[Logging driver for service]:logging driver:__docker_log_drivers"
+        "($help)*--log-opt=[Logging driver options]:log driver options:__docker_log_options"
+        "($help)*--mount=[Attach a mount to the service]:mount: "
+        "($help)--name=[Service name]:name: "
+        "($help)*--network=[Network attachments]:network: "
+        "($help)*"{-p=,--publish=}"[Publish a port as a node port]:port: "
+        "($help)--replicas=[Number of tasks]:replicas: "
+        "($help)--reserve-cpu=[Reserve CPUs]:value: "
+        "($help)--reserve-memory=[Reserve Memory]:value: "
+        "($help)--restart-condition=[Restart when condition is met]:mode:(any none on-failure)"
+        "($help)--restart-delay=[Delay between restart attempts]:delay: "
+        "($help)--restart-max-attempts=[Maximum number of restarts before giving up]:max-attempts: "
+        "($help)--restart-window=[Window used to evaluate the restart policy]:window: "
+        "($help)--stop-grace-period=[Time to wait before force killing a container]:grace period: "
+        "($help)--update-delay=[Delay between updates]:delay: "
+        "($help)--update-failure-action=[Action on update failure]:mode:(pause continue)"
+        "($help)--update-parallelism=[Maximum number of tasks updated simultaneously]:number: "
+        "($help -u --user)"{-u=,--user=}"[Username or UID]:user:_users"
+        "($help)--with-registry-auth[Send registry authentication details to swarm agents]"
+        "($help -w --workdir)"{-w=,--workdir=}"[Working directory inside the container]:directory:_directories"
+    )
+
+    case "$words[1]" in
+        (create)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_create_update \
+                "($help)*--container-label=[Container labels]:label: " \
+                "($help)--mode=[Service Mode]:mode:(global replicated)" \
+                "($help -): :__docker_images" \
+                "($help -):command: _command_names -e" \
+                "($help -)*::arguments: _normal" && ret=0
+            ;;
+        (inspect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " \
+                "($help)--pretty[Print the information in a human friendly format]" \
+                "($help -)*:service:__docker_complete_services" && ret=0
+            ;;
+        (ls|list)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-f=,--filter=}"[Filter output based on conditions provided]:filter:->filter-options" \
+                "($help -q --quiet)"{-q,--quiet}"[Only display IDs]" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_service_complete_ls_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (rm|remove)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:service:__docker_complete_services" && ret=0
+            ;;
+        (scale)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:service:->values" && ret=0
+            case $state in
+                (values)
+                    if compset -P '*='; then
+                        _message 'replicas' && ret=0
+                    else
+                        __docker_complete_services -qS "="
+                    fi
+                    ;;
+            esac
+            ;;
+        (ps)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all)"{-a,--all}"[Display all tasks]" \
+                "($help)*"{-f=,--filter=}"[Provide filter values]:filter:->filter-options" \
+                "($help)--no-resolve[Do not map IDs to Names]" \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -)1:service:__docker_complete_services" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_service_complete_ps_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (update)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_create_update \
+                "($help)--arg=[Service command args]:arguments: _normal" \
+                "($help)*--container-label-add=[Add or update container labels]:label: " \
+                "($help)*--container-label-rm=[Remove a container label by its key]:label: " \
+                "($help)--image=[Service image tag]:image:__docker_repositories" \
+                "($help -)1:service:__docker_complete_services" && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_service_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+# EO service
+
+# BO swarm
+
+__docker_swarm_commands() {
+    local -a _docker_swarm_subcommands
+    _docker_swarm_subcommands=(
+        "init:Initialize a swarm"
+        "join:Join a swarm as a node and/or manager"
+        "join-token:Manage join tokens"
+        "leave:Leave a swarm"
+        "update:Update the swarm"
+    )
+    _describe -t docker-swarm-commands "docker swarm command" _docker_swarm_subcommands
+}
+
+__docker_swarm_subcommand() {
+    local -a _command_args opts_help
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+
+    case "$words[1]" in
+        (init)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--advertise-addr[Advertised address]:ip\:port: " \
+                "($help)*--external-ca=[Specifications of one or more certificate signing endpoints]:endpoint: " \
+                "($help)--force-new-cluster[Force create a new cluster from current state]" \
+                "($help)--listen-addr=[Listen address]:ip\:port: " && ret=0
+            ;;
+        (join)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--advertise-addr[Advertised address]:ip\:port: " \
+                "($help)--listen-addr=[Listen address]:ip\:port: " \
+                "($help)--token=[Token for entry into the swarm]:secret: " \
+                "($help -):host\:port: " && ret=0
+            ;;
+        (join-token)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -q --quiet)"{-q,--quiet}"[Only display token]" \
+                "($help)--rotate[Rotate join token]" \
+                "($help -):role:(manager worker)" && ret=0
+            ;;
+        (leave)
+            _arguments $(__docker_arguments) \
+                $opts_help && ret=0
+            ;;
+        (update)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--cert-expiry=[Validity period for node certificates]:duration: " \
+                "($help)--dispatcher-heartbeat=[Dispatcher heartbeat period]:duration: " \
+                "($help)--task-history-limit=[Task history retention limit]:limit: " && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_network_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+# EO swarm
+
+# BO volume
+
+__docker_volume_complete_ls_filters() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+
+    if compset -P '*='; then
+        case "${${words[-1]%=*}#*=}" in
+            (dangling)
+                dangling_opts=('true' 'false')
+                _describe -t dangling-filter-opts "Dangling Filter Options" dangling_opts && ret=0
+                ;;
+            (driver)
+                __docker_complete_info_plugins Volume && ret=0
+                ;;
+            (name)
+                __docker_volumes && ret=0
+                ;;
+            *)
+                _message 'value' && ret=0
+                ;;
+        esac
+    else
+        opts=('dangling' 'driver' 'label' 'name')
+        _describe -t filter-opts "Filter Options" opts -qS "=" && ret=0
+    fi
+
+    return ret
+}
+
+__docker_volumes() {
+    [[ $PREFIX = -* ]] && return 1
+    integer ret=1
+    declare -a lines volumes
+
+    lines=(${(f)"$(_call_program commands docker $docker_options volume ls)"})
+
+    # Parse header line to find columns
+    local i=1 j=1 k header=${lines[1]}
+    declare -A begin end
+    while (( j < ${#header} - 1 )); do
+        i=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 1 ))
+        j=$(( i + ${${header[$i,-1]}[(i)  ]} - 1 ))
+        k=$(( j + ${${header[$j,-1]}[(i)[^ ]]} - 2 ))
+        begin[${header[$i,$((j-1))]}]=$i
+        end[${header[$i,$((j-1))]}]=$k
+    done
+    end[${header[$i,$((j-1))]}]=-1
+    lines=(${lines[2,-1]})
+
+    # Names
+    local line s
+    for line in $lines; do
+        s="${line[${begin[VOLUME NAME]},${end[VOLUME NAME]}]%% ##}"
+        s="$s:${(l:7:: :::)${${line[${begin[DRIVER]},${end[DRIVER]}]}%% ##}}"
+        volumes=($volumes $s)
+    done
+
+    _describe -t volumes-list "volumes" volumes && ret=0
+    return ret
+}
+
+__docker_volume_commands() {
+    local -a _docker_volume_subcommands
+    _docker_volume_subcommands=(
+        "create:Create a volume"
+        "inspect:Display detailed information on one or more volumes"
+        "ls:List volumes"
+        "rm:Remove one or more volumes"
+    )
+    _describe -t docker-volume-commands "docker volume command" _docker_volume_subcommands
+}
+
+__docker_volume_subcommand() {
+    local -a _command_args opts_help
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+
+    case "$words[1]" in
+        (create)
+            _arguments $(__docker_arguments) -A '-*' \
+                $opts_help \
+                "($help -d --driver)"{-d=,--driver=}"[Volume driver name]:Driver name:(local)" \
+                "($help)*--label=[Set metadata for a volume]:label=value: " \
+                "($help)*"{-o=,--opt=}"[Driver specific options]:Driver option: " \
+                "($help -)1:Volume name: " && ret=0
+            ;;
+        (inspect)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " \
+                "($help -)1:volume:__docker_volumes" && ret=0
+            ;;
+        (ls)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-f=,--filter=}"[Provide filter values]:filter:->filter-options" \
+                "($help)--format=[Pretty-print volumes using a Go template]:template: " \
+                "($help -q --quiet)"{-q,--quiet}"[Only display volume names]" && ret=0
+            case $state in
+                (filter-options)
+                    __docker_volume_complete_ls_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (rm)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --force)"{-f,--force}"[Force the removal of one or more volumes]" \
+                "($help -):volume:__docker_volumes" && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_volume_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+# EO volume
+
+__docker_caching_policy() {
+  oldp=( "$1"(Nmh+1) )     # 1 hour
+  (( $#oldp ))
+}
+
+__docker_commands() {
+    local cache_policy
+
+    zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
+    if [[ -z "$cache_policy" ]]; then
+        zstyle ":completion:${curcontext}:" cache-policy __docker_caching_policy
+    fi
+
+    if ( [[ ${+_docker_subcommands} -eq 0 ]] || _cache_invalid docker_subcommands) \
+        && ! _retrieve_cache docker_subcommands;
+    then
+        local -a lines
+        lines=(${(f)"$(_call_program commands docker 2>&1)"})
+        _docker_subcommands=(${${${lines[$((${lines[(i)Commands:]} + 1)),${lines[(I)    *]}]}## #}/ ##/:})
+        _docker_subcommands=($_docker_subcommands 'daemon:Enable daemon mode' 'help:Show help for a command')
+        (( $#_docker_subcommands > 2 )) && _store_cache docker_subcommands _docker_subcommands
+    fi
+    _describe -t docker-commands "docker command" _docker_subcommands
+}
+
+__docker_subcommand() {
+    local -a _command_args opts_help opts_build_create_run opts_build_create_run_update opts_create_run opts_create_run_update
+    local expl help="--help"
+    integer ret=1
+
+    opts_help=("(: -)--help[Print usage]")
+    opts_build_create_run=(
+        "($help)--cgroup-parent=[Parent cgroup for the container]:cgroup: "
+        "($help)--isolation=[Container isolation technology]:isolation:(default hyperv process)"
+        "($help)--disable-content-trust[Skip image verification]"
+        "($help)*--shm-size=[Size of '/dev/shm' (format is '<number><unit>')]:shm size: "
+        "($help)*--ulimit=[ulimit options]:ulimit: "
+        "($help)--userns=[Container user namespace]:user namespace:(host)"
+    )
+    opts_build_create_run_update=(
+        "($help -c --cpu-shares)"{-c=,--cpu-shares=}"[CPU shares (relative weight)]:CPU shares:(0 10 100 200 500 800 1000)"
+        "($help)--cpu-period=[Limit the CPU CFS (Completely Fair Scheduler) period]:CPU period: "
+        "($help)--cpu-quota=[Limit the CPU CFS (Completely Fair Scheduler) quota]:CPU quota: "
+        "($help)--cpuset-cpus=[CPUs in which to allow execution]:CPUs: "
+        "($help)--cpuset-mems=[MEMs in which to allow execution]:MEMs: "
+        "($help -m --memory)"{-m=,--memory=}"[Memory limit]:Memory limit: "
+        "($help)--memory-swap=[Total memory limit with swap]:Memory limit: "
+    )
+    opts_create_run=(
+        "($help -a --attach)"{-a=,--attach=}"[Attach to stdin, stdout or stderr]:device:(STDIN STDOUT STDERR)"
+        "($help)*--add-host=[Add a custom host-to-IP mapping]:host\:ip mapping: "
+        "($help)*--blkio-weight-device=[Block IO (relative device weight)]:device:Block IO weight: "
+        "($help)*--cap-add=[Add Linux capabilities]:capability: "
+        "($help)*--cap-drop=[Drop Linux capabilities]:capability: "
+        "($help)--cidfile=[Write the container ID to the file]:CID file:_files"
+        "($help)*--device=[Add a host device to the container]:device:_files"
+        "($help)*--device-read-bps=[Limit the read rate (bytes per second) from a device]:device:IO rate: "
+        "($help)*--device-read-iops=[Limit the read rate (IO per second) from a device]:device:IO rate: "
+        "($help)*--device-write-bps=[Limit the write rate (bytes per second) to a device]:device:IO rate: "
+        "($help)*--device-write-iops=[Limit the write rate (IO per second) to a device]:device:IO rate: "
+        "($help)*--dns=[Custom DNS servers]:DNS server: "
+        "($help)*--dns-opt=[Custom DNS options]:DNS option: "
+        "($help)*--dns-search=[Custom DNS search domains]:DNS domains: "
+        "($help)*"{-e=,--env=}"[Environment variables]:environment variable: "
+        "($help)--entrypoint=[Overwrite the default entrypoint of the image]:entry point: "
+        "($help)*--env-file=[Read environment variables from a file]:environment file:_files"
+        "($help)*--expose=[Expose a port from the container without publishing it]: "
+        "($help)*--group-add=[Add additional groups to run as]:group:_groups"
+        "($help -h --hostname)"{-h=,--hostname=}"[Container host name]:hostname:_hosts"
+        "($help -i --interactive)"{-i,--interactive}"[Keep stdin open even if not attached]"
+        "($help)--ip=[Container IPv4 address]:IPv4: "
+        "($help)--ip6=[Container IPv6 address]:IPv6: "
+        "($help)--ipc=[IPC namespace to use]:IPC namespace: "
+        "($help)*--link=[Add link to another container]:link:->link"
+        "($help)*--link-local-ip=[Add a link-local address for the container]:IPv4/IPv6: "
+        "($help)*"{-l=,--label=}"[Container metadata]:label: "
+        "($help)--log-driver=[Default driver for container logs]:logging driver:__docker_log_drivers"
+        "($help)*--log-opt=[Log driver specific options]:log driver options:__docker_log_options"
+        "($help)--mac-address=[Container MAC address]:MAC address: "
+        "($help)--name=[Container name]:name: "
+        "($help)--network=[Connect a container to a network]:network mode:(bridge none container host)"
+        "($help)*--network-alias=[Add network-scoped alias for the container]:alias: "
+        "($help)--oom-kill-disable[Disable OOM Killer]"
+        "($help)--oom-score-adj[Tune the host's OOM preferences for containers (accepts -1000 to 1000)]"
+        "($help)--pids-limit[Tune container pids limit (set -1 for unlimited)]"
+        "($help -P --publish-all)"{-P,--publish-all}"[Publish all exposed ports]"
+        "($help)*"{-p=,--publish=}"[Expose a container's port to the host]:port:_ports"
+        "($help)--pid=[PID namespace to use]:PID namespace:__docker_complete_pid"
+        "($help)--privileged[Give extended privileges to this container]"
+        "($help)--read-only[Mount the container's root filesystem as read only]"
+        "($help)*--security-opt=[Security options]:security option: "
+        "($help)*--sysctl=-[sysctl options]:sysctl: "
+        "($help -t --tty)"{-t,--tty}"[Allocate a pseudo-tty]"
+        "($help -u --user)"{-u=,--user=}"[Username or UID]:user:_users"
+        "($help)--tmpfs[mount tmpfs]"
+        "($help)*-v[Bind mount a volume]:volume: "
+        "($help)--volume-driver=[Optional volume driver for the container]:volume driver:(local)"
+        "($help)*--volumes-from=[Mount volumes from the specified container]:volume: "
+        "($help -w --workdir)"{-w=,--workdir=}"[Working directory inside the container]:directory:_directories"
+    )
+    opts_create_run_update=(
+        "($help)--blkio-weight=[Block IO (relative weight), between 10 and 1000]:Block IO weight:(10 100 500 1000)"
+        "($help)--kernel-memory=[Kernel memory limit in bytes]:Memory limit: "
+        "($help)--memory-reservation=[Memory soft limit]:Memory limit: "
+        "($help)--restart=[Restart policy]:restart policy:(no on-failure always unless-stopped)"
+    )
+    opts_attach_exec_run_start=(
+        "($help)--detach-keys=[Escape key sequence used to detach a container]:sequence:__docker_complete_detach_keys"
+    )
+
+    case "$words[1]" in
+        (attach)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_attach_exec_run_start \
+                "($help)--no-stdin[Do not attach stdin]" \
+                "($help)--sig-proxy[Proxy all received signals to the process (non-TTY mode only)]" \
+                "($help -):containers:__docker_runningcontainers" && ret=0
+            ;;
+        (build)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_build_create_run \
+                $opts_build_create_run_update \
+                "($help)*--build-arg[Build-time variables]:<varname>=<value>: " \
+                "($help -f --file)"{-f=,--file=}"[Name of the Dockerfile]:Dockerfile:_files" \
+                "($help)--force-rm[Always remove intermediate containers]" \
+                "($help)*--label=[Set metadata for an image]:label=value: " \
+                "($help)--no-cache[Do not use cache when building the image]" \
+                "($help)--pull[Attempt to pull a newer version of the image]" \
+                "($help -q --quiet)"{-q,--quiet}"[Suppress verbose build output]" \
+                "($help)--rm[Remove intermediate containers after a successful build]" \
+                "($help -t --tag)*"{-t=,--tag=}"[Repository, name and tag for the image]: :__docker_repositories_with_tags" \
+                "($help -):path or URL:_directories" && ret=0
+            ;;
+        (commit)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --author)"{-a=,--author=}"[Author]:author: " \
+                "($help)*"{-c=,--change=}"[Apply Dockerfile instruction to the created image]:Dockerfile:_files" \
+                "($help -m --message)"{-m=,--message=}"[Commit message]:message: " \
+                "($help -p --pause)"{-p,--pause}"[Pause container during commit]" \
+                "($help -):container:__docker_containers" \
+                "($help -): :__docker_repositories_with_tags" && ret=0
+            ;;
+        (cp)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -L --follow-link)"{-L,--follow-link}"[Always follow symbol link]" \
+                "($help -)1:container:->container" \
+                "($help -)2:hostpath:_files" && ret=0
+            case $state in
+                (container)
+                    if compset -P "*:"; then
+                        _files && ret=0
+                    else
+                        __docker_containers -qS ":" && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (create)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_build_create_run \
+                $opts_build_create_run_update \
+                $opts_create_run \
+                $opts_create_run_update \
+                "($help -): :__docker_images" \
+                "($help -):command: _command_names -e" \
+                "($help -)*::arguments: _normal" && ret=0
+
+            case $state in
+                (link)
+                    if compset -P "*:"; then
+                        _wanted alias expl "Alias" compadd -E "" && ret=0
+                    else
+                        __docker_runningcontainers -qS ":" && ret=0
+                    fi
+                    ;;
+            esac
+
+            ;;
+        (daemon)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*--add-runtime=[Register an additional OCI compatible runtime]:runtime:__docker_complete_runtimes" \
+                "($help)--api-cors-header=[CORS headers in the remote API]:CORS headers: " \
+                "($help)*--authorization-plugin=[Authorization plugins to load]" \
+                "($help -b --bridge)"{-b=,--bridge=}"[Attach containers to a network bridge]:bridge:_net_interfaces" \
+                "($help)--bip=[Network bridge IP]:IP address: " \
+                "($help)--cgroup-parent=[Parent cgroup for all containers]:cgroup: " \
+                "($help)--config-file=[Path to daemon configuration file]:Config File:_files" \
+                "($help)--containerd=[Path to containerd socket]:socket:_files -g \"*.sock\"" \
+                "($help -D --debug)"{-D,--debug}"[Enable debug mode]" \
+                "($help)--default-gateway[Container default gateway IPv4 address]:IPv4 address: " \
+                "($help)--default-gateway-v6[Container default gateway IPv6 address]:IPv6 address: " \
+                "($help)--cluster-store=[URL of the distributed storage backend]:Cluster Store:->cluster-store" \
+                "($help)--cluster-advertise=[Address or interface name to advertise]:Instance to advertise (host\:port): " \
+                "($help)*--cluster-store-opt=[Cluster store options]:Cluster options:->cluster-store-options" \
+                "($help)*--dns=[DNS server to use]:DNS: " \
+                "($help)*--dns-search=[DNS search domains to use]:DNS search: " \
+                "($help)*--dns-opt=[DNS options to use]:DNS option: " \
+                "($help)*--default-ulimit=[Default ulimits for containers]:ulimit: " \
+                "($help)--disable-legacy-registry[Disable contacting legacy registries]" \
+                "($help)*--exec-opt=[Runtime execution options]:runtime execution options: " \
+                "($help)--exec-root=[Root directory for execution state files]:path:_directories" \
+                "($help)--fixed-cidr=[IPv4 subnet for fixed IPs]:IPv4 subnet: " \
+                "($help)--fixed-cidr-v6=[IPv6 subnet for fixed IPs]:IPv6 subnet: " \
+                "($help -G --group)"{-G=,--group=}"[Group for the unix socket]:group:_groups" \
+                "($help -g --graph)"{-g=,--graph=}"[Root of the Docker runtime]:path:_directories" \
+                "($help -H --host)"{-H=,--host=}"[tcp://host:port to bind/connect to]:host: " \
+                "($help)--icc[Enable inter-container communication]" \
+                "($help)*--insecure-registry=[Enable insecure registry communication]:registry: " \
+                "($help)--ip=[Default IP when binding container ports]" \
+                "($help)--ip-forward[Enable net.ipv4.ip_forward]" \
+                "($help)--ip-masq[Enable IP masquerading]" \
+                "($help)--iptables[Enable addition of iptables rules]" \
+                "($help)--ipv6[Enable IPv6 networking]" \
+                "($help -l --log-level)"{-l=,--log-level=}"[Logging level]:level:(debug info warn error fatal)" \
+                "($help)*--label=[Key=value labels]:label: " \
+                "($help)--live-restore[Enable live restore of docker when containers are still running]" \
+                "($help)--log-driver=[Default driver for container logs]:logging driver:__docker_log_drivers" \
+                "($help)*--log-opt=[Default log driver options for containers]:log driver options:__docker_log_options" \
+                "($help)--max-concurrent-downloads[Set the max concurrent downloads for each pull]" \
+                "($help)--max-concurrent-uploads[Set the max concurrent uploads for each push]" \
+                "($help)--mtu=[Network MTU]:mtu:(0 576 1420 1500 9000)" \
+                "($help)--oom-score-adjust=[Set the oom_score_adj for the daemon]:oom-score:(-500)" \
+                "($help -p --pidfile)"{-p=,--pidfile=}"[Path to use for daemon PID file]:PID file:_files" \
+                "($help)--raw-logs[Full timestamps without ANSI coloring]" \
+                "($help)*--registry-mirror=[Preferred Docker registry mirror]:registry mirror: " \
+                "($help -s --storage-driver)"{-s=,--storage-driver=}"[Storage driver to use]:driver:(aufs btrfs devicemapper overlay overlay2 vfs zfs)" \
+                "($help)--selinux-enabled[Enable selinux support]" \
+                "($help)*--storage-opt=[Storage driver options]:storage driver options: " \
+                "($help)--tls[Use TLS]" \
+                "($help)--tlscacert=[Trust certs signed only by this CA]:PEM file:_files -g \"*.(pem|crt)\"" \
+                "($help)--tlscert=[Path to TLS certificate file]:PEM file:_files -g \"*.(pem|crt)\"" \
+                "($help)--tlskey=[Path to TLS key file]:Key file:_files -g \"*.(pem|key)\"" \
+                "($help)--tlsverify[Use TLS and verify the remote]" \
+                "($help)--userns-remap=[User/Group setting for user namespaces]:user\:group:->users-groups" \
+                "($help)--userland-proxy[Use userland proxy for loopback traffic]" && ret=0
+
+            case $state in
+                (cluster-store)
+                    if compset -P '*://'; then
+                        _message 'host:port' && ret=0
+                    else
+                        store=('consul' 'etcd' 'zk')
+                        _describe -t cluster-store "Cluster Store" store -qS "://" && ret=0
+                    fi
+                    ;;
+                (cluster-store-options)
+                    if compset -P '*='; then
+                        _files && ret=0
+                    else
+                        opts=('discovery.heartbeat' 'discovery.ttl' 'kv.cacertfile' 'kv.certfile' 'kv.keyfile' 'kv.path')
+                        _describe -t cluster-store-opts "Cluster Store Options" opts -qS "=" && ret=0
+                    fi
+                    ;;
+                (users-groups)
+                    if compset -P '*:'; then
+                        _groups && ret=0
+                    else
+                        _describe -t userns-default "default Docker user management" '(default)' && ret=0
+                        _users && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (diff)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:containers:__docker_containers" && ret=0
+            ;;
+        (events)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-f=,--filter=}"[Filter values]:filter:__docker_complete_events_filter" \
+                "($help)--since=[Events created since this timestamp]:timestamp: " \
+                "($help)--until=[Events created until this timestamp]:timestamp: " && ret=0
+            ;;
+        (exec)
+            local state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_attach_exec_run_start \
+                "($help -d --detach)"{-d,--detach}"[Detached mode: leave the container running in the background]" \
+                "($help -i --interactive)"{-i,--interactive}"[Keep stdin open even if not attached]" \
+                "($help)--privileged[Give extended Linux capabilities to the command]" \
+                "($help -t --tty)"{-t,--tty}"[Allocate a pseudo-tty]" \
+                "($help -u --user)"{-u=,--user=}"[Username or UID]:user:_users" \
+                "($help -):containers:__docker_runningcontainers" \
+                "($help -)*::command:->anycommand" && ret=0
+
+            case $state in
+                (anycommand)
+                    shift 1 words
+                    (( CURRENT-- ))
+                    _normal && ret=0
+                    ;;
+            esac
+            ;;
+        (export)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -o --output)"{-o=,--output=}"[Write to a file, instead of stdout]:output file:_files" \
+                "($help -)*:containers:__docker_containers" && ret=0
+            ;;
+        (history)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -H --human)"{-H,--human}"[Print sizes and dates in human readable format]" \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -q --quiet)"{-q,--quiet}"[Only show numeric IDs]" \
+                "($help -)*: :__docker_images" && ret=0
+            ;;
+        (images)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all)"{-a,--all}"[Show all images]" \
+                "($help)--digests[Show digests]" \
+                "($help)*"{-f=,--filter=}"[Filter values]:filter:->filter-options" \
+                "($help)--format[Pretty-print containers using a Go template]:template: " \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -q --quiet)"{-q,--quiet}"[Only show numeric IDs]" \
+                "($help -): :__docker_repositories" && ret=0
+
+            case $state in
+                (filter-options)
+                    __docker_complete_images_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (import)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-c=,--change=}"[Apply Dockerfile instruction to the created image]:Dockerfile:_files" \
+                "($help -m --message)"{-m=,--message=}"[Commit message for imported image]:message: " \
+                "($help -):URL:(- http:// file://)" \
+                "($help -): :__docker_repositories_with_tags" && ret=0
+            ;;
+        (info|version)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+		"($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " && ret=0
+            ;;
+        (inspect)
+            local state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --format)"{-f=,--format=}"[Format the output using the given go template]:template: " \
+                "($help -s --size)"{-s,--size}"[Display total file sizes if the type is container]" \
+                "($help)--type=[Return JSON for specified type]:type:(image container)" \
+                "($help -)*: :->values" && ret=0
+
+            case $state in
+                (values)
+                    if [[ ${words[(r)--type=container]} == --type=container ]]; then
+                        __docker_containers && ret=0
+                    elif [[ ${words[(r)--type=image]} == --type=image ]]; then
+                        __docker_images && ret=0
+                    else
+                        __docker_images && __docker_containers && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (kill)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -s --signal)"{-s=,--signal=}"[Signal to send]:signal:_signals" \
+                "($help -)*:containers:__docker_runningcontainers" && ret=0
+            ;;
+        (load)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -i --input)"{-i=,--input=}"[Read from tar archive file]:archive file:_files -g \"*.((tar|TAR)(.gz|.GZ|.Z|.bz2|.lzma|.xz|)|(tbz|tgz|txz))(-.)\"" \
+                "($help -q --quiet)"{-q,--quiet}"[Suppress the load output]" && ret=0
+            ;;
+        (login)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -p --password)"{-p=,--password=}"[Password]:password: " \
+                "($help -u --user)"{-u=,--user=}"[Username]:username: " \
+                "($help -)1:server: " && ret=0
+            ;;
+        (logout)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:server: " && ret=0
+            ;;
+        (logs)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--details[Show extra details provided to logs]" \
+                "($help -f --follow)"{-f,--follow}"[Follow log output]" \
+                "($help -s --since)"{-s=,--since=}"[Show logs since this timestamp]:timestamp: " \
+                "($help -t --timestamps)"{-t,--timestamps}"[Show timestamps]" \
+                "($help)--tail=[Output the last K lines]:lines:(1 10 20 50 all)" \
+                "($help -)*:containers:__docker_containers" && ret=0
+            ;;
+        (network)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_network_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_network_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (node)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_node_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_node_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (pause|unpause)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:containers:__docker_runningcontainers" && ret=0
+            ;;
+        (plugin)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_plugin_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_plugin_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (port)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:containers:__docker_runningcontainers" \
+                "($help -)2:port:_ports" && ret=0
+            ;;
+        (ps)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all)"{-a,--all}"[Show all containers]" \
+                "($help)--before=[Show only container created before...]:containers:__docker_containers" \
+                "($help)*"{-f=,--filter=}"[Filter values]:filter:__docker_complete_ps_filters" \
+                "($help)--format[Pretty-print containers using a Go template]:template: " \
+                "($help -l --latest)"{-l,--latest}"[Show only the latest created container]" \
+                "($help -n --last)"{-n=,--last=}"[Show n last created containers (includes all states)]:n:(1 5 10 25 50)" \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -q --quiet)"{-q,--quiet}"[Only show numeric IDs]" \
+                "($help -s --size)"{-s,--size}"[Display total file sizes]" \
+                "($help)--since=[Show only containers created since...]:containers:__docker_containers" && ret=0
+            ;;
+        (pull)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all-tags)"{-a,--all-tags}"[Download all tagged images]" \
+                "($help)--disable-content-trust[Skip image verification]" \
+                "($help -):name:__docker_search" && ret=0
+            ;;
+        (push)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)--disable-content-trust[Skip image signing]" \
+                "($help -): :__docker_images" && ret=0
+            ;;
+        (rename)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -):old name:__docker_containers" \
+                "($help -):new name: " && ret=0
+            ;;
+        (restart|stop)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -t --time)"{-t=,--time=}"[Number of seconds to try to stop for before killing the container]:seconds to before killing:(1 5 10 30 60)" \
+                "($help -)*:containers:__docker_runningcontainers" && ret=0
+            ;;
+        (rm)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --force)"{-f,--force}"[Force removal]" \
+                "($help -l --link)"{-l,--link}"[Remove the specified link and not the underlying container]" \
+                "($help -v --volumes)"{-v,--volumes}"[Remove the volumes associated to the container]" \
+                "($help -)*:containers:->values" && ret=0
+            case $state in
+                (values)
+                    if [[ ${words[(r)-f]} == -f || ${words[(r)--force]} == --force ]]; then
+                        __docker_containers && ret=0
+                    else
+                        __docker_stoppedcontainers && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (rmi)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -f --force)"{-f,--force}"[Force removal]" \
+                "($help)--no-prune[Do not delete untagged parents]" \
+                "($help -)*: :__docker_images" && ret=0
+            ;;
+        (run)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_build_create_run \
+                $opts_build_create_run_update \
+                $opts_create_run \
+                $opts_create_run_update \
+                $opts_attach_exec_run_start \
+                "($help -d --detach)"{-d,--detach}"[Detached mode: leave the container running in the background]" \
+                "($help)--health-cmd=[Command to run to check health]:command: " \
+                "($help)--health-interval=[Time between running the check]:time: " \
+                "($help)--health-retries=[Consecutive failures needed to report unhealthy]:retries:(1 2 3 4 5)" \
+                "($help)--health-timeout=[Maximum time to allow one check to run]:time: " \
+                "($help)--no-healthcheck[Disable any container-specified HEALTHCHECK]" \
+                "($help)--rm[Remove intermediate containers when it exits]" \
+                "($help)--runtime=[Name of the runtime to be used for that container]:runtime:__docker_complete_runtimes" \
+                "($help)--sig-proxy[Proxy all received signals to the process (non-TTY mode only)]" \
+                "($help)--stop-signal=[Signal to kill a container]:signal:_signals" \
+                "($help)--storage-opt=[Storage driver options for the container]:storage options:->storage-opt" \
+                "($help -): :__docker_images" \
+                "($help -):command: _command_names -e" \
+                "($help -)*::arguments: _normal" && ret=0
+
+            case $state in
+                (link)
+                    if compset -P "*:"; then
+                        _wanted alias expl "Alias" compadd -E "" && ret=0
+                    else
+                        __docker_runningcontainers -qS ":" && ret=0
+                    fi
+                    ;;
+                (storage-opt)
+                    if compset -P "*="; then
+                        _message "value" && ret=0
+                    else
+                        opts=('size')
+                        _describe -t filter-opts "storage options" opts -qS "=" && ret=0
+                    fi
+                    ;;
+            esac
+
+            ;;
+        (save)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -o --output)"{-o=,--output=}"[Write to file]:file:_files" \
+                "($help -)*: :__docker_images" && ret=0
+            ;;
+        (search)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help)*"{-f=,--filter=}"[Filter values]:filter:->filter-options" \
+                "($help)--limit=[Maximum returned search results]:limit:(1 5 10 25 50)" \
+                "($help)--no-trunc[Do not truncate output]" \
+                "($help -):term: " && ret=0
+
+            case $state in
+                (filter-options)
+                    __docker_complete_search_filters && ret=0
+                    ;;
+            esac
+            ;;
+        (service)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_service_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_service_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (start)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_attach_exec_run_start \
+                "($help -a --attach)"{-a,--attach}"[Attach container's stdout/stderr and forward all signals]" \
+                "($help -i --interactive)"{-i,--interactive}"[Attach container's stding]" \
+                "($help -)*:containers:__docker_stoppedcontainers" && ret=0
+            ;;
+        (stats)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -a --all)"{-a,--all}"[Show all containers (default shows just running)]" \
+                "($help)--no-stream[Disable streaming stats and only pull the first result]" \
+                "($help -)*:containers:__docker_runningcontainers" && ret=0
+            ;;
+        (swarm)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_swarm_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_swarm_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (tag)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -):source:__docker_images"\
+                "($help -):destination:__docker_repositories_with_tags" && ret=0
+            ;;
+        (top)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)1:containers:__docker_runningcontainers" \
+                "($help -)*:: :->ps-arguments" && ret=0
+            case $state in
+                (ps-arguments)
+                    _ps && ret=0
+                    ;;
+            esac
+
+            ;;
+        (update)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                $opts_create_run_update \
+                $opts_build_create_run_update \
+                "($help -)*: :->values" && ret=0
+
+            case $state in
+                (values)
+                    if [[ ${words[(r)--kernel-memory*]} = (--kernel-memory*) ]]; then
+                        __docker_stoppedcontainers && ret=0
+                    else
+                        __docker_containers && ret=0
+                    fi
+                    ;;
+            esac
+            ;;
+        (volume)
+            local curcontext="$curcontext" state
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -): :->command" \
+                "($help -)*:: :->option-or-argument" && ret=0
+
+            case $state in
+                (command)
+                    __docker_volume_commands && ret=0
+                    ;;
+                (option-or-argument)
+                    curcontext=${curcontext%:*:*}:docker-${words[-1]}:
+                    __docker_volume_subcommand && ret=0
+                    ;;
+            esac
+            ;;
+        (wait)
+            _arguments $(__docker_arguments) \
+                $opts_help \
+                "($help -)*:containers:__docker_runningcontainers" && ret=0
+            ;;
+        (help)
+            _arguments $(__docker_arguments) ":subcommand:__docker_commands" && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+_docker() {
+    # Support for subservices, which allows for `compdef _docker docker-shell=_docker_containers`.
+    # Based on /usr/share/zsh/functions/Completion/Unix/_git without support for `ret`.
+    if [[ $service != docker ]]; then
+        _call_function - _$service
         return
-fi
-
-local -a _command_args
-case "$words[1]" in
-    attach)
-       __attach ;;
-    build)
-        __build ;;
-    commit)
-        __commit ;;
-    cp)
-        __cp ;;
-    create)
-        __create ;;
-    diff)
-        __diff ;;
-    events)
-        __events ;;
-    export)
-        __export ;;
-    history)
-        __history ;;
-    images)
-        __images ;;
-    import)
-        __import ;;
-    info)
-        __info ;;
-    inspect)
-        __inspect ;;
-    kill)
-        __kill ;;
-    load)
-        __load ;;
-    login)
-        __login ;;
-    logs)
-        __logs ;;
-    port)
-        __port ;;
-    ps)
-        __ps ;;
-    pull)
-        __pull ;;
-    push)
-        __push ;;
-    restart)
-        __restart ;;
-    rm)
-        __rm ;;
-    rmi)
-        __rmi ;;
-    run)
-        __run ;;
-    save)
-        __save ;;
-    search)
-        __search ;;
-    stats)
-        __stats ;;
-    start)
-        __start ;;
-    stop)
-        __stop ;;
-    tag)
-        __tag ;;
-    top)
-        __top ;;
-    version)
-        __version ;;
-    wait)
-        __wait ;;
-    exec)
-        __exec ;;
-esac
+    fi
+
+    local curcontext="$curcontext" state line help="-h --help"
+    integer ret=1
+    typeset -A opt_args
+
+    _arguments $(__docker_arguments) -C \
+        "(: -)"{-h,--help}"[Print usage]" \
+        "($help)--config[Location of client config files]:path:_directories" \
+        "($help -D --debug)"{-D,--debug}"[Enable debug mode]" \
+        "($help -H --host)"{-H=,--host=}"[tcp://host:port to bind/connect to]:host: " \
+        "($help -l --log-level)"{-l=,--log-level=}"[Logging level]:level:(debug info warn error fatal)" \
+        "($help)--tls[Use TLS]" \
+        "($help)--tlscacert=[Trust certs signed only by this CA]:PEM file:_files -g "*.(pem|crt)"" \
+        "($help)--tlscert=[Path to TLS certificate file]:PEM file:_files -g "*.(pem|crt)"" \
+        "($help)--tlskey=[Path to TLS key file]:Key file:_files -g "*.(pem|key)"" \
+        "($help)--tlsverify[Use TLS and verify the remote]" \
+        "($help)--userland-proxy[Use userland proxy for loopback traffic]" \
+        "($help -v --version)"{-v,--version}"[Print version information and quit]" \
+        "($help -): :->command" \
+        "($help -)*:: :->option-or-argument" && ret=0
+
+    local host=${opt_args[-H]}${opt_args[--host]}
+    local config=${opt_args[--config]}
+    local docker_options="${host:+--host $host} ${config:+--config $config}"
+
+    case $state in
+        (command)
+            __docker_commands && ret=0
+            ;;
+        (option-or-argument)
+            curcontext=${curcontext%:*:*}:docker-$words[1]:
+            __docker_subcommand && ret=0
+            ;;
+    esac
+
+    return ret
+}
+
+_dockerd() {
+    integer ret=1
+    words[1]='daemon'
+    __docker_subcommand && ret=0
+    return ret
+}
+
+_docker "$@"
+
+# Local Variables:
+# mode: Shell-Script
+# sh-indentation: 4
+# indent-tabs-mode: nil
+# sh-basic-offset: 4
+# End:
+# vim: ft=zsh sw=4 ts=4 et