Docker Compose 是 Docker 官方编排（Orchestration）项目之一，负责快速在集群中部署分布式应用。

安装方式

二进制安装

$ sudo curl -L 
https://github.com/docker/compose/releases/download/1.17.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose

$ sudo chmod +x /usr/local/bin/docker-compose

bash 补全命令

$ curl -L https://raw.githubusercontent.com/docker/compose/1.8.0/contrib/completion/bash/docker-compose > /etc/bash_completion.d/docker-compose

删除docker-compose

sudo rm /usr/local/bin/docker-compose

pip方式安装

安装python-pip
yum -y install python-pip
安装docker-compose
pip install docker-compose
待安装完成后，执行查询版本的命令，即可安装docker-compose
docker-compose version

docker-compose.yml文件的编写

version: '3'
services:
  web:
    build: .
    ports:
      - "5000:5000"
    redis:
      image: "redis:alpine"

注意每个服务都必须通过 image 指令指定镜像或 build 指令（需要 Dockerfile）等来自动构建生成镜像。

如果使用build指令，在Dockerfile中设置的选项(例如： CMD , EXPOSE , VOLUME , ENV等)将会自动被获取，无需在docker-compose.yml中再次设置。 build

指定 Dockerfile 所在文件夹的路径（可以是绝对路径，或者相对 docker-compose.yml 文件的路径）。Compose将会利用它自动构建这个镜像，然后使用这个镜像 其他具体参数可以参考官方文档Docker Compose的Compose 模板文件部分

docker-compose命令

Options:
  -f, --file FILE             Specify an alternate compose file
                              (default: docker-compose.yml)
  -p, --project-name NAME     Specify an alternate project name
                              (default: directory name)
  --verbose                   Show more output
  --log-level LEVEL           Set log level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
  --no-ansi                   Do not print ANSI control characters
  -v, --version               Print version and exit
  -H, --host HOST             Daemon socket to connect to
  --tls                       Use TLS; implied by --tlsverify
  --tlscacert CA_PATH         Trust certs signed only by this CA
  --tlscert CLIENT_CERT_PATH  Path to TLS certificate file
  --tlskey TLS_KEY_PATH       Path to TLS key file
  --tlsverify                 Use TLS and verify the remote
  --skip-hostname-check       Don't check the daemon's hostname against the
                              name specified in the client certificate
  --project-directory PATH    Specify an alternate working directory
                              (default: the path of the Compose file)
  --compatibility             If set, Compose will attempt to convert deploy
                              keys in v3 files to their non-Swarm equivalent
Commands:
  build              Build or rebuild services
  bundle             Generate a Docker bundle from the Compose file
  config             Validate and view the Compose file
  create             Create services
  down               Stop and remove containers, networks, images, and volumes
  events             Receive real time events from containers
  exec               Execute a command in a running container
  help               Get help on a command
  images             List images
  kill               Kill containers
  logs               View output from containers
  pause              Pause services
  port               Print the public port for a port binding
  ps                 List containers
  pull               Pull service images
  push               Push service images
  restart            Restart services
  rm                 Remove stopped containers
  run                Run a one-off command
  scale              Set number of containers for a service
  start              Start services
  stop               Stop services
  top                Display the running processes
  unpause            Unpause services
  up                 Create and start containers
  version            Show the Docker-Compose version information