`docker`指令總覽及系統指令

(last update:2021/10/31)

`docker`指令分類一覽

系統相關：docker system 列出docker相關資訊
映像檔相關：docker image 管理映像檔
容器相關：docker container container通常省略
網路相關：docker network 管理網路
儲存相關：docker volume 管理docker儲存設備
~~服務相關：docker service~~ 管理系統服務，有了k8s就沒落了
~~堆疊相關：docker stack~~ 管理多個容器堆疊，有了k8s就沒落了
~~多主機相關：docker swarm~~ 管理多台主機的docker叢集，有了k8s就沒落了

系統圖解

所有指令一覽

docker attach 連接到一個執行中容器的輸出(顯示容器)
docker build 利用自建的Dockerfile建立映像檔
docker commit 從目前執行的container建立一個映像檔
docker cp 容器間或實體機容器間複製檔案
docker exec 連接至容器內執行，如docker exec -it name bash
docker export 把容器的檔案系統存成tar壓縮檔
docker images 列出所有映像檔
docker import 從tar檔案建立映像檔
docker info 列出目前docker的系統資訊
docker inspect 列出docker的json系統完整資訊
docker kill 刪除執行中的容器
docker load 從tar中載入映像檔
docker login 登入docker的映像檔hub
docker logout 登出docker的映像檔hub
docker logs 查看容器的輸出資訊
docker pause 暫停容器的執行
docker port 列出容器對外開放的通訊埠
docker ps 列出執行的容器docker ps -a
docker pull 下載映像檔
docker push 上傳映像檔
docker rename 更名映像檔
docker restart 重啟映像檔
docker rm 刪除容器
docker rmi 刪除映像檔
docker run 啟動一個新的容器執行
docker save 將容器存入tar中
docker search 搜索docker hub
docker start 啟動停止的容器
docker stats 列出容器的執行狀態
docker stop 停止容器
docker tag 幫映像檔取標籤名稱
docker top 列出執行中容器目前的處理程序
docker unpause 讓暫停中的容器繼續執行

系統相關指令範例

範例1：docker version
列出docker版本，注意不同版本會有不同功能。有些功能在新版本均移除，請注意 https://docs.docker.com/engine/deprecated/。

(joshhuAI)joshhu:~/ $ docker version                                                                            [0:06:34]
Client: Docker Engine - Community
 Version:           20.10.7
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        f0df350
 Built:             Wed Jun  2 11:56:47 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.7
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       b0f5bc3
  Built:            Wed Jun  2 11:54:58 2021
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.4.6
  GitCommit:        d71fcd7d8303cbf684402823e425e9dd2e99285d
 nvidia:
  Version:          1.0.0-rc95
  GitCommit:        b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
(joshhuAI)joshhu:~/ $

範例2：docker info
顯示系統資訊。

(joshhuAI)joshhu:~/ $ docker info                                                                               [0:06:43]
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)
  scan: Docker Scan (Docker Inc., v0.8.0)

Server:
 Containers: 1
  Running: 1
  Paused: 0
  Stopped: 0
 Images: 7
 Server Version: 20.10.7
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
  userxattr: false
 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: io.containerd.runc.v2 io.containerd.runtime.v1.linux nvidia runc
 Default Runtime: nvidia
 Init Binary: docker-init
 containerd version: d71fcd7d8303cbf684402823e425e9dd2e99285d
 runc version: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 4.15.0-142-generic
 Operating System: Ubuntu 16.04.7 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 24
 Total Memory: 62.83GiB
 Name: joshhuai
 ID: YSFJ:UUP7:B7EV:OZLF:IX7Q:SVIP:4SM6:OVMR:SC7D:FVYV:D2N2:SAXM
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Username: joshhu
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: No swap limit support

範例3：docker system prune
清除系統所有不要的東西。

(joshhuAI)joshhu:~/ $ docker system prune                                                                       [0:09:24]
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all dangling images
  - all dangling build cache

Are you sure you want to continue? [y/N] y
Total reclaimed space: 0B
(joshhuAI)joshhu:~/ $

範例4：docker system events
檢視主機目前執行docker有關的訊息。

docker run -d newimage

(joshhuAI)joshhu:~/ $ docker system events                                                                      [0:12:03]
2021-10-31T00:12:56.299461853+08:00 container create 3d0571ca7fad49b69e48debc97880478acc5d4b74792cb78e3b07c29ee1b88fc (image=newimage, name=intelligent_snyder)
2021-10-31T00:12:56.320222453+08:00 network connect 5b4c28676aae128b3b825b86714510df45a86cd62e35bc9ec2b1ef3cbca66950 (container=3d0571ca7fad49b69e48debc97880478acc5d4b74792cb78e3b07c29ee1b88fc, name=bridge, type=bridge)
2021-10-31T00:12:56.881895643+08:00 container start 3d0571ca7fad49b69e48debc97880478acc5d4b74792cb78e3b07c29ee1b88fc (image=newimage, name=intelligent_snyder)

docker rm -f 3

(joshhuAI)joshhu:~/ $ docker system events                                                                      [0:11:22]
2021-10-31T00:11:45.735274280+08:00 container kill 781d1370a70ee9b2cd0b54ae0ae1a90acea648897e05307ad9232f4730bca6ca (image=newimage, name=romantic_volhard, signal=9)
2021-10-31T00:11:45.799964394+08:00 container die 781d1370a70ee9b2cd0b54ae0ae1a90acea648897e05307ad9232f4730bca6ca (exitCode=137, image=newimage, name=romantic_volhard)
2021-10-31T00:11:45.944675253+08:00 network disconnect 5b4c28676aae128b3b825b86714510df45a86cd62e35bc9ec2b1ef3cbca66950 (container=781d1370a70ee9b2cd0b54ae0ae1a90acea648897e05307ad9232f4730bca6ca, name=bridge, type=bridge)
2021-10-31T00:11:46.005736426+08:00 container destroy 781d1370a70ee9b2cd0b54ae0ae1a90acea648897e05307ad9232f4730bca6ca (image=newimage, name=romantic_volhard)

範例5：docker system df
列出目前磁碟使用狀況，主要為映像檔。

(joshhuAI)joshhu:~/ $ docker system df                                                                                              [0:14:15]
TYPE            TOTAL     ACTIVE    SIZE      RECLAIMABLE
Images          4         0         544.4MB   544.4MB (100%)
Containers      0         0         0B        0B
Local Volumes   4         0         7.184GB   7.184GB (100%)
Build Cache     0         0         0B        0B
(joshhuAI)joshhu:~/ $

docker指令總覽及系統指令

docker指令分類一覽

系統圖解

所有指令一覽

系統相關指令範例

tags: docker

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`docker`指令總覽及系統指令

`docker`指令分類一覽

tags: `docker`