Compose
About versions and upgrading (Compose)
ASP.NET Core + SQL Server on Linux (Compose)
CLI environment variables (Compose)
Command-line completion (Compose)
Compose（组成）
Compose command-line reference（组合命令行参考）
Control startup order (Compose)
Django and PostgreSQL (Compose)
Docker stacks and distributed application bundles (Compose)
docker-compose build（docker-compose构建）
docker-compose bundle
docker-compose config
docker-compose create
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docker-compose events
docker-compose exec
docker-compose help
docker-compose images
docker-compose kill
docker-compose logs
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docker-compose port
docker-compose ps
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docker-compose restart
docker-compose rm
docker-compose run
docker-compose scale
docker-compose start
docker-compose stop
docker-compose top
docker-compose unpause
docker-compose up
Environment file (Compose)
Environment variables in Compose
Extend services in Compose
Frequently asked questions (Compose)
Getting started (Compose)
Install Compose
Link environment variables (deprecated) (Compose)
Networking in Compose
Overview of Docker Compose
Overview of docker-compose CLI
Quickstart: Compose and WordPress
Rails and PostgreSQL (Compose)
Sample apps with Compose
Using Compose in production
Using Compose with Swarm
Engine
.NET Core application (Engine)
About images, containers, and storage drivers (Engine)
Add nodes to the swarm (Engine)
Apply custom metadata (Engine)
Apply rolling updates (Engine)
apt-cacher-ng
Best practices for writing Dockerfiles (Engine)
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Engine
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Migrate to Engine 1.10
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Run Docker Engine in swarm mode
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Swarm mode overlay network security model (Engine)
Swarm mode overview (Engine)
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Use swarm mode routing mesh (Engine)
Use the AUFS storage driver (Engine)
Use the Btrfs storage driver (Engine)
Use the Device mapper storage driver (Engine)
Use the OverlayFS storage driver (Engine)
Use the VFS storage driver (Engine)
Use the ZFS storage driver (Engine)
Engine: Admin Guide
Amazon CloudWatch logs logging driver (Engine)
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Collect Docker metrics with Prometheus (Engine)
Configuring and running Docker (Engine)
Configuring logging drivers (Engine)
Control and configure Docker with systemd (Engine)
ETW logging driver (Engine)
Fluentd logging driver (Engine)
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Google Cloud logging driver (Engine)
Graylog Extended Format (GELF) logging driver (Engine)
Journald logging driver (Engine)
JSON File logging driver (Engine)
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Prune unused Docker objects (Engine)
Run multiple services in a container (Engine)
Runtime metrics (Engine)
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Storage overview (Engine)
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tmpfs mounts
Troubleshoot volume problems (Engine)
Use a logging driver plugin (Engine)
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Using Chef (Engine)
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View a container's logs (Engine)
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Engine: CLI
Daemon CLI reference (dockerd) (Engine)
docker
docker attach
docker build
docker checkpoint
docker checkpoint create
docker checkpoint ls
docker checkpoint rm
docker commit
docker config
docker config create
docker config inspect
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docker container
docker container attach
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docker container cp
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docker container diff
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docker container ls
docker container pause
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docker system
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docker wait
Use the Docker command line (Engine)
Engine: Extend
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Docker log driver plugins
Docker network driver plugins (Engine)
Extending Engine with plugins
Managed plugin system (Engine)
Plugin configuration (Engine)
Plugins API (Engine)
Volume plugins (Engine)
Engine: Security
AppArmor security profiles for Docker (Engine)
Automation with content trust (Engine)
Content trust in Docker (Engine)
Delegations for content trust (Engine)
Deploying Notary (Engine)
Docker security (Engine)
Docker security non-events (Engine)
Isolate containers with a user namespace (Engine)
Manage keys for content trust (Engine)
Play in a content trust sandbox (Engine)
Protect the Docker daemon socket (Engine)
Seccomp security profiles for Docker (Engine)
Secure Engine
Use trusted images
Using certificates for repository client verification (Engine)
Engine: Tutorials
Engine tutorials
Network containers (Engine)
Get Started
Part 1: Orientation
Part 2: Containers
Part 3: Services
Part 4: Swarms
Part 5: Stacks
Part 6: Deploy your app
Machine
Amazon Web Services (Machine)
Digital Ocean (Machine)
docker-machine active
docker-machine config
docker-machine create
docker-machine env
docker-machine help
docker-machine inspect
docker-machine ip
docker-machine kill
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docker-machine provision
docker-machine regenerate-certs
docker-machine restart
docker-machine rm
docker-machine scp
docker-machine ssh
docker-machine start
docker-machine status
docker-machine stop
docker-machine upgrade
docker-machine url
Driver options and operating system defaults (Machine)
Drivers overview (Machine)
Exoscale (Machine)
Generic (Machine)
Get started with a local VM (Machine)
Google Compute Engine (Machine)
IBM Softlayer (Machine)
Install Machine
Machine
Machine CLI overview
Machine command-line completion
Machine concepts and help
Machine overview
Microsoft Azure (Machine)
Microsoft Hyper-V (Machine)
Migrate from Boot2Docker to Machine
OpenStack (Machine)
Oracle VirtualBox (Machine)
Provision AWS EC2 instances (Machine)
Provision Digital Ocean Droplets (Machine)
Provision hosts in the cloud (Machine)
Rackspace (Machine)
VMware Fusion (Machine)
VMware vCloud Air (Machine)
VMware vSphere (Machine)
Notary
Client configuration (Notary)
Common Server and signer configurations (Notary)
Getting started with Notary
Notary changelog
Notary configuration files
Running a Notary service
Server configuration (Notary)
Signer configuration (Notary)
Understand the service architecture (Notary)
Use the Notary client
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描述
显示系统范围内的信息
用法
docker info [OPTIONS]
选项
名字，简写 | 默认 | 描述 |
|---|---|---|
--format, -f | 使用给定的Go模板格式化输出 |
父命令
命令 | 描述 |
|---|---|
docker | Docker CLI的基本命令。 |
扩展描述
此命令显示有关 Docker 安装的系统范围信息。显示的信息包括内核版本，容器数量和图像。显示的图像数量是唯一图像的数量。用不同名称标记的相同图像只计算一次。
如果指定了格式，则将执行给定模板而不是默认格式。Go 的文本/模板包描述了格式的所有细节。
根据使用的存储驱动程序，可以显示其他信息，例如池名称，数据文件，元数据文件，使用的数据空间，总数据空间，使用的元数据空间以及总元数据空间。
数据文件是存储图像的位置，元数据文件是存储关于这些图像的元数据的位置。当第一次运行时，Docker 会从/var/lib/docker挂载的卷上可用的空间中分配一定数量的数据空间和元数据空间。
实例
显示输出
以下示例显示了使用devicemapper存储驱动程序在 Red Hat Enterprise Linux 上运行的守护程序的输出。从输出中可以看出，显示了有关devicemapper存储驱动程序的附加信息：
$ docker info Containers: 14 Running: 3 Paused: 1 Stopped: 10Images: 52Server Version: 1.10.3Storage Driver: devicemapper Pool Name: docker-202:2-25583803-pool Pool Blocksize: 65.54 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 1.68 GB Data Space Total: 107.4 GB Data Space Available: 7.548 GB Metadata Space Used: 2.322 MB Metadata Space Total: 2.147 GB Metadata Space Available: 2.145 GB Udev Sync Supported: true Deferred Removal Enabled: false Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Data loop file: /var/lib/docker/devicemapper/devicemapper/data Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata Library Version: 1.02.107-RHEL7 (2015-12-01)Execution Driver: native-0.2Logging Driver: json-file Plugins: Volume: local Network: null host bridge Kernel Version: 3.10.0-327.el7.x86_64 Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)OSType: linux Architecture: x86_64 CPUs: 1Total Memory: 991.7 MiB Name: ip-172-30-0-91.ec2.internal ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S Docker Root Dir: /var/lib/docker Debug mode (client): falseDebug mode (server): falseUsername: gordontheturtle Registry: https://index.docker.io/v1/Insecure registries: myinsecurehost:5000 127.0.0.0/8
显示调试输出
以下是在 Ubuntu 上运行的守护进程的示例输出，使用 overlay2 存储驱动程序和属于双节点群集的节点：
$ docker -D info Containers: 14 Running: 3 Paused: 1 Stopped: 10Images: 52Server Version: 1.13.0Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: falseLogging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Swarm: active NodeID: rdjq45w1op418waxlairloqbm Is Manager: true ClusterID: te8kdyw33n36fqiz74bfjeixd Managers: 1 Nodes: 2 Orchestration: Task History Retention Limit: 5 Raft: Snapshot Interval: 10000 Number of Old Snapshots to Retain: 0 Heartbeat Tick: 1 Election Tick: 3 Dispatcher: Heartbeat Period: 5 seconds CA Configuration: Expiry Duration: 3 months Root Rotation In Progress: false Node Address: 172.16.66.128 172.16.66.129 Manager Addresses: 172.16.66.128:2477Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 8517738ba4b82aff5662c97ca4627e7e4d03b531 runc version: ac031b5bf1cc92239461125f4c1ffb760522bbf2 init version: N/A (expected: v0.13.0)Security Options: apparmor seccomp Profile: defaultKernel Version: 4.4.0-31-generic Operating System: Ubuntu 16.04.1 LTS OSType: linux Architecture: x86_64 CPUs: 2Total Memory: 1.937 GiB Name: ubuntu ID: H52R:7ZR6:EIIA:76JG:ORIY:BVKF:GSFU:HNPG:B5MK:APSC:SZ3Q:N326 Docker Root Dir: /var/lib/docker Debug Mode (client): trueDebug Mode (server): true File Descriptors: 30 Goroutines: 123 System Time: 2016-11-12T17:24:37.955404361-08:00 EventsListeners: 0Http Proxy: http://test:test@proxy.example.com:8080Https Proxy: https://test:test@proxy.example.com:8080No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com Registry: https://index.docker.io/v1/WARNING: No swap limit support Labels: storage=ssd staging=trueExperimental: falseInsecure Registries: 127.0.0.0/8Registry Mirrors: http://192.168.1.2/ http://registry-mirror.example.com:5000/Live Restore Enabled: false
全局-D选项会导致所有docker命令输出调试信息。
格式化输出
还可以指定输出格式：
$ docker info --format '{{json .}}'{"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}在Windows上运行docker info
以下是在 Windows Server 2016 上运行的守护程序的示例输出：
E:\docker>docker info Containers: 1 Running: 0 Paused: 0 Stopped: 1Images: 17Server Version: 1.13.0Storage Driver: windowsfilter Windows:Logging Driver: json-file Plugins: Volume: local Network: nat null overlay Swarm: inactive Default Isolation: process Kernel Version: 10.0 14393 (14393.206.amd64fre.rs1_release.160912-1937)Operating System: Windows Server 2016 Datacenter OSType: windows Architecture: x86_64 CPUs: 8Total Memory: 3.999 GiB Name: WIN-V0V70C0LU5P ID: NYMS:B5VK:UMSL:FVDZ:EWB5:FKVK:LPFL:FJMQ:H6FT:BZJ6:L2TD:XH62 Docker Root Dir: C:\control Debug Mode (client): falseDebug Mode (server): falseRegistry: https://index.docker.io/v1/Insecure Registries: 127.0.0.0/8Registry Mirrors: http://192.168.1.2/ http://registry-mirror.example.com:5000/Live Restore Enabled: false