[Docker6] Docker compose多容器运行与管理

六、Docker compose

docker compose就是通过yml文件来定义和运行多个容器docker应用程序的工具,三步过程就能跑起一个compose:

• 定义应用程序的环境(yml中)
• 定义组成应用程序的服务(docker-compose.yml)
• docker-compose up启动整个应用程序

6.1 安装docker compose

依赖：docker engine

# download the latest version
sudo curl -L https://github.com/docker/compose/releases/download/1.17.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
# excutable
sudo chmod +x /usr/local/bin/docker-compose
# check version
docker-compose --version

6.2 docker compose管理application lifestyle的command

Define and run multi-container applications with Docker.

Usage:
  docker-compose [-f <arg>...] [options] [COMMAND] [ARGS...]
  docker-compose -h|--help

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
  --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 (for example if your docker host
                              is an IP address)
  --project-directory PATH    Specify an alternate working directory
                              (default: the path of the Compose file)

  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
  kill               Kill containers
  logs               View output from containers
  pause              Pause services
  port               Print the public port for a port binding
  ps                 List containers
  pull               Pulls 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
  unpause            Unpause services
  up                 Create and start containers
  version            Show the Docker-Compose version information

6.3 create a demo

• Create a directory for the project
• create application
• Create another file called requirements.txt in your project directory and paste this in
• Create a Dockerfile
• Define services in a Compose file (docker-compose.yml)
• Build and run your app with Compose
• access your application

docker compose ref link

• docker-compose user guide
• composefile Formate
• docker-compose overview
• 关于docker-compose的一些资料可以通过以上链接进行搜索
• docker-compose github
• compose and wordpress