docker简单操作

1.运行hello-world image
docker run hello-world

Unable to find image 'hello-world:latest' locallylatest: Pulling from library/hello-world78445dd45222: Pull completeDigest: sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7Status: Downloaded newer image for hello-world:latestHello from Docker!This message shows that your installation appears to be working correctly.To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. 3. The Docker daemon created a new container from that image which runs the    executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it    to your terminal.To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bashShare images, automate workflows, and more with a free Docker ID: https://cloud.docker.com/For more examples and ideas, visit: https://docs.docker.com/engine/userguide/

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2.查看docker版本
docker --version

Docker version 17.03.1-ce, build c6d412e

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3.查看本机注册的docker images
docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZEhello-world         latest              48b5124b2768        4 months ago        1.84 kB

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4.查看docker上正在运行的进程
docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED1fa4ab2cf395        friendlyhello       "python app.py"     28 seconds ago

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5.停止docker上正在运行的进程
docker stop CONTAINER_ID

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6.登录/登出 DockerHub
docker login

Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.Username: silencecarrothuPassword:Login Succeeded

docker logout

Removing login credentials for https://index.docker.io/v1/

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7.构建时指定任意位置的Dockerfile文件(当前目录作为上下文)
docker build -f /path/to/a/Dockerfile .

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8.如果构建成功，您可以指定保存新映像的存储库和标记
docker build -t shykes/myapp .

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9.将一个版本的image标注为最新
docker build -t shykes/myapp:1.0.2 -t shykes/myapp:latest .

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10.Dockerfile format

# CommentINSTRUCTION arguments

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11.Dockerfile Instruction

#FROMFROM <image>#orFROM <image>:<tag>#orFROM <image>@<digest>

#RUNRUN <command>#orRUN ["executable", "param1", "param2"]