docker

发表于

Run an interactive container

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docker run -t -i ubuntu /bin/bash

-t 分配一个新的终端

-i 交互连接

Start a daemonized Hello world

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docker run -d ubuntu /bin/sh -c "while true; do echo hello world; sleep 1; done"
1e5535038e285177d5214659a068137486f96ee5c2e85a4ac52dc83f2ebe4147（container ID）

-d 后台运行

Creating our own images

  1. You can update a container created from an image and commit the results to an image.

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    docker commit -m "Added json gem" -a "Kate Smith" 0b2616b0e5a8 ouruser/sinatra:v2
    4f177bd27a9ff0f6dc2a830403925b5360bfe0b93d476f7fc3231110e7f71b1c

  2. You can use a Dockerfile to specify instructions to create an image.

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    mkdir sinatra
    cd sinatra
    touch Dockerfile
    docker build -t ouruser/sinatra:v2 .

-t flag to identify our new image as belonging to the user ouruser

Setting tags on an image

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docker tag 5db5f8471261 ouruser/sinatra:devel

Remove an image from the host

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docker rmi training/sinatra