version.md

title	description	keywords
version	The version command description and usage	version, architecture, api

version

Usage:  docker version [OPTIONS]

Show the Docker version information

Options:
  -f, --format string       Format the output using the given Go template
      --help                Print usage
      --kubeconfig string   Kubernetes config file

Description

The version command prints the current version number for all independently versioned Docker components. Use the --format option to customize the output.

The version command (docker version) outputs the version numbers of Docker components, while the --version flag (docker --version) outputs the version number of the Docker CLI you are using.

Default output

The default output renders all version information divided into two sections; the "Client" section contains information about the Docker CLI and client components, and the "Server" section contains information about the Docker Engine and components used by the Engine, such as the "Containerd" and "Runc" OCI Runtimes.

The information shown may differ depending on how you installed Docker and what components are in use. The following example shows the output on a macOS machine running Docker Desktop:

$ docker version

Client:
 Version:           20.10.16
 API version:       1.41
 Go version:        go1.17.10
 Git commit:        aa7e414
 Built:             Thu May 12 09:17:28 2022
 OS/Arch:           darwin/amd64
 Context:           default

Server: Docker Desktop 4.8.2 (77141)
 Engine:
  Version:          20.10.16
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.17.10
  Git commit:       f756502
  Built:            Thu May 12 09:15:33 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.4
  GitCommit:        212e8b6fa2f44b9c21b2798135fc6fb7c53efc16
 runc:
  Version:          1.1.1
  GitCommit:        v1.1.1-0-g52de29d
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Client and server versions

Docker uses a client/server architecture, which allows you to use the Docker CLI on your local machine to control a Docker Engine running on a remote machine, which can be (for example) a machine running in the Cloud or inside a Virtual Machine.

The following example switches the Docker CLI to use a context named "remote-test-server", which runs an older version of the Docker Engine on a Linux server:

$ docker context use remote-test-server
remote-test-server

$ docker version

Client:
 Version:           20.10.16
 API version:       1.40 (downgraded from 1.41)
 Go version:        go1.17.10
 Git commit:        aa7e414
 Built:             Thu May 12 09:17:28 2022
 OS/Arch:           darwin/amd64
 Context:           remote-test-server

Server: Docker Engine - Community
 Engine:
  Version:          19.03.8
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.12.17
  Git commit:       afacb8b
  Built:            Wed Mar 11 01:29:16 2020
  OS/Arch:          linux/amd64
 containerd:
  Version:          v1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        dc9208a3303feef5b3839f4323d9beb36df0a9dd
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

Examples

Format the output (--format)

The formatting option (--format) pretty-prints the output using a Go template, which allows you to customize the output format, or to obtain specific information from the output. Refer to the format command and log output page for details of the format.

Get the server version

$ docker version --format '{{.Server.Version}}'

20.10.16

Dump raw JSON data

$ docker version --format '{{json .}}'

{"Client":{"Platform":{"Name":"Docker Engine - Community"},"Version":"19.03.8","ApiVersion":"1.40","DefaultAPIVersion":"1.40","GitCommit":"afacb8b","GoVersion":"go1.12.17","Os":"darwin","Arch":"amd64","BuildTime":"Wed Mar 11 01:21:11 2020","Experimental":true},"Server":{"Platform":{"Name":"Docker Engine - Community"},"Components":[{"Name":"Engine","Version":"19.03.8","Details":{"ApiVersion":"1.40","Arch":"amd64","BuildTime":"Wed Mar 11 01:29:16 2020","Experimental":"true","GitCommit":"afacb8b","GoVersion":"go1.12.17","KernelVersion":"4.19.76-linuxkit","MinAPIVersion":"1.12","Os":"linux"}},{"Name":"containerd","Version":"v1.2.13","Details":{"GitCommit":"7ad184331fa3e55e52b890ea95e65ba581ae3429"}},{"Name":"runc","Version":"1.0.0-rc10","Details":{"GitCommit":"dc9208a3303feef5b3839f4323d9beb36df0a9dd"}},{"Name":"docker-init","Version":"0.18.0","Details":{"GitCommit":"fec3683"}}],"Version":"19.03.8","ApiVersion":"1.40","MinAPIVersion":"1.12","GitCommit":"afacb8b","GoVersion":"go1.12.17","Os":"linux","Arch":"amd64","KernelVersion":"4.19.76-linuxkit","Experimental":true,"BuildTime":"2020-03-11T01:29:16.000000000+00:00"}}

Print the current context

The following example prints the currently used docker context:

$ docker version --format='{{.Client.Context}}'
default

As an example, this output can be used to dynamically change your shell prompt to indicate your active context. The example below illustrates how this output could be used when using Bash as your shell.

Declare a function to obtain the current context in your ~/.bashrc, and set this command as your PROMPT_COMMAND

function docker_context_prompt() {
        PS1="context: $(docker version --format='{{.Client.Context}}')> "
}

PROMPT_COMMAND=docker_context_prompt

After reloading the ~/.bashrc, the prompt now shows the currently selected docker context:

$ source ~/.bashrc
context: default> docker context create --docker host=unix:///var/run/docker.sock my-context
my-context
Successfully created context "my-context"
context: default> docker context use my-context
my-context
Current context is now "my-context"
context: my-context> docker context use default
default
Current context is now "default"
context: default>

Refer to the docker context section in the command line reference for more information about docker context.