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