docker目录结构的功能在/ var / lib / docker / [英] function of docker directory structure in /var/lib/docker/

问题描述

当我启动一个新的docker守护进程时，docker目录是这样的：

when I start a fresh docker daemon, the docker directory is as this:

/var/lib/docker/
├── aufs
│   ├── diff
│   ├── layers
│   └── mnt
├── containers
├── graph
├── init
│   └── dockerinit-0.7.3
├── linkgraph.db
├── lxc-start-unconfined -> /usr/bin/lxc-start
├── repositories-aufs
└── volumes

作为标题说，什么是功能

as the title say, what is the function of every directory in this structure?

推荐答案

我不知道所有文件的确切作用，所以我先从这个，让别人添加自己的贡献，或者改进我的：

I don't know the exact role of all files, so I'll start with this, and let others add their own contribution, or refine mine:

/var/lib/docker/
├── aufs                                       # Storage area for AUFS driver
│   ├── diff                                   # Branch directory of layer
│   ├── layers                                 # Infomation about docker layer
│   └── mnt                                    # Mount point of aufs, root of containers
├── containers                                 # Container configurations
│                                                (both LXC and Docker-specific)
├── graph                                      # Storage for the images
├── init
│   └── dockerinit-0.7.3                       # Used as /sbin/init in containers
├── linkgraph.db                               # SQLite database storing links
│                                                and names.
├── lxc-start-unconfined -> /usr/bin/lxc-start # When starting a privileged
│                                                container, this is used in
│                                                lieu of lxc-start, to evade
│                                                AppArmor confinement (which
│                                                matches by exact path).
├── repositories-aufs                          # repository infomation
└── volumes                                    # Storage for "anonymous" volumes
                                                 (those which are not bind-mounts)

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