docker info Command

Docker command reference

The docker info command is used to display detailed information about the Docker system, including the Docker version, storage driver, number of images, number of containers, and other important configuration information.

The docker info command is very useful, helping users understand the overall status of the Docker environment.

Syntax

docker info [OPTIONS]

Example

View Docker system information.

$ docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc., 0.8.1)
  compose: Docker Compose (Docker Inc., 2.3.3)

Server:
 Containers: 3
  Running: 1
  Paused: 0
  Stopped: 2
 Images: 10
 Server Version: 20.10.7
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: d71fcd7d8303cbf684402823e425e9dd2e99285d
 runc version: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
  selinux
 Kernel Version: 5.10.25-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 2
 Total Memory: 1.942GiB
 Name: docker-desktop
 ID: 3WZ2:ZQ7K:6K4E:6ZCR:YITZ:GH2S:6NUB:HTB5:OS7K:AAUI:K7CC:JZL3
 Docker Root Dir: /var/lib/docker
 Debug Mode: true
  File Descriptors: 45
  Goroutines: 49
  System Time: 2024-07-23T09:41:47.2527914Z
  EventsListeners: 4
 HTTP Proxy: http://proxy.example.com:80
 HTTPS Proxy: https://proxy.example.com:443
 No Proxy: localhost,127.0.0.1,docker-registry.example.com
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Registry Mirrors:
 Live Restore Enabled: false

WARNING: No swap limit support

Output explanation

Client: Information related to the Docker client.

  • ContextCurrent Docker context.
  • Debug Mode: Whether the client has debug mode enabled.
  • Plugins: Installed client plugins, such asbuildxandcompose。

Server: Information related to the Docker server (daemon).

  • Containers: Total number of containers.
    • Running: Number of running containers.
    • Paused: Number of paused containers.
    • Stopped: Number of stopped containers.
  • Images: Total number of images.
  • Server Version: The version number of the Docker daemon.
  • Storage Driver: Storage driver in use (such asoverlay2）。
  • Backing Filesystem: Backend filesystem type.
  • Supports d_type: Support statusd_type。
  • Native Overlay Diff: Whether the native Overlay filesystem is supported.
  • Logging Driver: Logging driver in use (such asjson-file）。
  • Cgroup Driver: The Cgroup driver in use (e.g.cgroupfs）。
  • Cgroup Version: Cgroup version (such as1）。
  • Plugins: List of server-side plugins, including volume, network, and logging plugins.
  • Swarm: The status of Swarm mode (e.g.inactive）。
  • Runtimes: Supported runtimes (e.g.runc）。
  • Default Runtime: Default runtime (e.g.runc）。
  • Init Binary: Init binary (such asdocker-init）。
  • containerd version: usedcontainerdversion.
  • runc version: usedruncversion.
  • init version: usedinitversion.
  • Security Options: Security options enabled (such asseccompandselinux）。
  • Kernel Version: Kernel version.
  • Operating System: Operating system name.
  • OSType: Operating system type (such aslinux）。
  • Architecture: System architecture (such asx86_64）。
  • CPUs: number of CPUs.
  • Total Memory: Total memory.
  • Name: Docker hostname.
  • ID: Docker instance ID.
  • Docker Root Dir: Docker root directory.
  • Debug Mode: Whether the server has debug mode enabled.
    • File Descriptors: Number of file descriptors.
    • Goroutines: number of Goroutines.
    • System Time: System time.
    • EventsListeners: Number of event listeners.
  • HTTP Proxy: Configured HTTP proxy.
  • HTTPS ProxyConfigured HTTPS proxy.
  • No Proxy: List of addresses not using proxy.
  • Registry: Registry address in use.
  • Labels: Configured labels.
  • Experimental: Whether experimental features are enabled.
  • Insecure Registries: List of configured insecure registries.
  • Registry Mirrors: List of registry mirrors.
  • Live Restore Enabled: Whether live restore is enabled.

WARNING: Warning messages (e.g., swap limit support not enabled).

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