docker_practice/cases/os/alpine.md

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## Alpine
###
![Apline Linux ](_images/alpinelinux-logo.png)
`Alpine` `Linux` `Linux` `Alpine` `musl libc` `busybox` `busybox` `Alpine` `apk` `https://pkgs.alpinelinux.org/packages` `apk`
`Alpine` 广 `Linux`/`Linux``Alpine` /
`Alpine` Docker Alpine Linux `Docker` 5 MB Ubuntu 200 MB `docker-alpine`
Docker 使 `Alpine` `Ubuntu` 便
```bash
REPOSITORY TAG IMAGE ID VIRTUAL SIZE
alpine latest 4e38e38c8ce0 4.799 MB
debian latest 4d6ce913b130 84.98 MB
ubuntu latest b39b81afc8ca 188.3 MB
centos latest 8efe422e6104 210 MB
```
### 使
使 `docker run` `Alpine` Linux
```bash
$ docker run alpine echo '123'
123
```
### `Alpine`
Docker Alpine
* ubuntu/debian -> alpine
* python:2.7 -> python:2.7-alpine
* ruby:2.3 -> ruby:2.3-alpine
使 `Alpine` `Ubuntu` apk apt
```bash
$ apk add --no-cache <package>
```
`Alpine` `https://pkgs.alpinelinux.org/packages` 使
```bash
$ echo "http://dl-4.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
$ apk --update add --no-cache <package>
```
###
* `Alpine` https://www.alpinelinux.org/
* `Alpine` https://github.com/alpinelinux
* `Alpine` https://hub.docker.com/_/alpine/
* `Alpine` https://github.com/gliderlabs/docker-alpine