/learn-docker

learn how to use the docker tech.

Primary LanguageDockerfileMIT LicenseMIT

learn-docker

learn how to use docker and docker-compose.

  • Dockerfile: 單個服務執行的部屬 (類似自動化腳本)
  • docker-compose: 多個服務執行
# Dockerfile
RUN pip3 install -r requirements.txt # 建立image時使用的
CMD ["", ""] # 執行container時使用的

1. Docker command

1-0.

docker version

$ docker --version
$ docker -v

docker help

$ docker -h
$ docker --help

1. docker container 常用指令

1-1. docker ps

only show the executing containers.

$ docker ps # 查看目前container清單
$ docker container ls
$ docker ps -a # show all containers, even if the service of container is off.

1-2. docker stop

$ docker stop [CONTAINER ID]

1-3. docker restart & docker start

$ docker restart [CONTAINER ID]
$ docker start [CONTAINER ID] # 啟動已停止的 Container
$ docker container start [CONTAINER ID]

1-4. docker rm

$ docker rm [container ID]

1-5. docker exec

$ docker exec [container ID] /bin/bash

# for other shell script.
$ docker exec [container ID] /bin/sh

# for redis.
$ docker exec [container ID] redis-cli

1-6. docker build

$ docker build -t [image_name] .

2 docker image 常用指令

$ docker image ls
$ docker image pull NAME:[tag] # 下載image
$ docker run NAME:[tag] # 執行image, 建立container
# 刪除image
$ docker image rm IMAGE 
$ docker rmi IMAGE

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