转自:https://www.cnblogs.com/jsonhc/p/7811929.html
以一个简单的lnmp.yaml的配置文件进行讲解docker-compose命令的基础讲解,熟练掌握命令
[root@docker lnmp]# cat lnmp.yaml version: '3'services: nginx: image: nginx ports: - "80:80" links: - php:php volumes: - "/www:/usr/local/nginx/html" php: image: php expose: - "9000" volumes: - "/www:/usr/local/nginx/html" db: image: mysql ports: - "3306:3306" environment: MYSQL_ROOT_PASSWORD: redhat MYSQL_DATABASE: wordpress MYSQL_USER: wordpress MYSQL_PASSWORD: wordpress
上面配置文件的关于编写的参数暂时不进行讲解,这里只进行关于docker-compose的命令
[root@docker ~]# docker-compose --help Define and run multi-container applications with Docker.Usage: docker-compose [-f...] [options] [COMMAND] [ARGS...] docker-compose -h|--help
看用法的定义就是利用docker定义和运行多个容器应用
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)
默认如果没有指定具体的compose配置文件,那么就docker-compose.yml,并且如果不指定项目名称,默认就是文件夹的name
up Create and start containers
现在利用command中的up进行创建并启动容器(多个容器,安装配置文件中,至于顺序现在不讲解)
[root@docker lnmp]# docker-compose -f lnmp.yaml upCreating lnmp_php_1 ... Creating lnmp_db_1 ... Creating lnmp_db_1Creating lnmp_php_1 ... doneCreating lnmp_nginx_1 ... Creating lnmp_db_1 ... done
后面的一大堆输出,这里不进行全部显示了,创建并启动好了容器后,如何查看运行的状态呢?
ps List containers
[root@docker lnmp]# docker-compose ps Name Command State Ports------------------------------
为什么这里没有显示呢?因为配置文件名称不是docker-compose.yml,所以在执行一系列命令时需要加上-f lnmp.yaml
[root@docker lnmp]# docker-compose -f lnmp.yaml ps Name Command State Ports ------------------------------------------------------------------------------lnmp_db_1 docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcplnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp lnmp_php_1 /usr/local/php/sbin/php-fpm Up 9000/tcp
由于配置文件lnmp.yaml在当前目录,这里可以进行绝对路径:
[root@docker lnmp]# docker-compose -f /root/compose_project/lnmp/lnmp.yaml ps Name Command State Ports ------------------------------------------------------------------------------lnmp_db_1 docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcplnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp lnmp_php_1 /usr/local/php/sbin/php-fpm Up 9000/tcp
由上面可以看出将所有的容器都显示出来,如何指定显出某一个容器呢?
[root@docker ~]# docker-compose ps --helpList containers.Usage: ps [options] [SERVICE...]
一般的command命令都可以带上SERVICE,这里的service是什么呢?就是配置文件中定义的services服务,配置文件中定义了三个:nginx、php、db(不能写错service名称)
[root@docker lnmp]# docker-compose -f /root/compose_project/lnmp/lnmp.yaml ps nginx Name Command State Ports --------------------------------------------------------------------------lnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp
name这一列代表的是容器名称,而不是service名称
[root@docker lnmp]# docker ps -aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESa5747e115947 nginx "/usr/local/nginx/..." 6 minutes ago Up 6 minutes 0.0.0.0:80->80/tcp lnmp_nginx_1508ac0a6890c php "/usr/local/php/sb..." 6 minutes ago Up 6 minutes 9000/tcp lnmp_php_1aaa3cc6f1040 mysql "docker-entrypoint..." 6 minutes ago Up 6 minutes 0.0.0.0:3306->3306/tcp lnmp_db_1
name的组成由project+service组成(后面的_1本人认为是构建的次数,第一次构建up就代表1吧)
docker-compose up --build或者docker-compose build
config:
config Validate and view the Compose file
利用config命令可以打印处配置文件的内容和service名称以及volumes信息
[root@docker lnmp]# docker-compose -f /root/compose_project/lnmp/lnmp.yaml config --servicesphpnginxdb
[root@docker lnmp]# docker-compose -f /root/compose_project/lnmp/lnmp.yaml config services: db: environment: MYSQL_DATABASE: wordpress MYSQL_PASSWORD: wordpress MYSQL_ROOT_PASSWORD: redhat MYSQL_USER: wordpress image: mysql ports: - 3306:3306/tcp nginx: image: nginx links: - php:php ports: - 80:80/tcp volumes: - /www:/usr/local/nginx/html:rw php: expose: - '9000' image: php volumes: - /www:/usr/local/nginx/html:rwversion: '3.0'
[root@docker lnmp]# docker-compose -f /root/compose_project/lnmp/lnmp.yaml config --volumes
down:停止并删除容器、网络、镜像、数据卷
down Stop and remove containers, networks, images, and volumes
[root@docker lnmp]# docker-compose -f lnmp.yaml downStopping lnmp_nginx_1 ... doneStopping lnmp_db_1 ... doneStopping lnmp_php_1 ... doneRemoving lnmp_nginx_1 ... doneRemoving lnmp_db_1 ... doneRemoving lnmp_php_1 ... doneRemoving network lnmp_default[root@docker lnmp]# docker-compose -f lnmp.yaml ps Name Command State Ports------------------------------[root@docker lnmp]# docker ps -aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
down也带有其他的参数:
Options: --rmi type Remove images. Type must be one of: 'all': Remove all images used by any service. 'local': Remove only images that don't have a custom tag set by the `image` field. -v, --volumes Remove named volumes declared in the `volumes` section of the Compose file and anonymous volumes attached to containers. --remove-orphans Remove containers for services not defined in the Compose file
exec:在运行的容器中执行命令:
exec Execute a command in a running container
[root@docker lnmp]# docker-compose -f lnmp.yaml exec db env PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/binHOSTNAME=aaa3cc6f1040TERM=xtermMYSQL_ROOT_PASSWORD=redhatMYSQL_PASSWORD=wordpressMYSQL_USER=wordpressMYSQL_DATABASE=wordpressGOSU_VERSION=1.7MYSQL_MAJOR=5.7MYSQL_VERSION=5.7.20-1debian8HOME=/root
db是指定了在哪一个service中执行env命令
images:列出镜像
[root@docker lnmp]# docker-compose -f lnmp.yaml images Container Repository Tag Image Id Size ----------------------------------------------------------lnmp_db_1 mysql latest 5709795eeffa 389 MBlnmp_nginx_1 nginx latest c3babfeba09b 551 MBlnmp_php_1 php latest 8902ce599658 1 GB
参数-q:列出镜像的id
[root@docker lnmp]# docker-compose -f lnmp.yaml images -q5709795eeffac51eca46cf40ab36669aad27e8cb4b0e91876d5e9f7bafad6acbc3babfeba09bab70a8e3b7e8d734ee274af4a02ed8b9b4d286cd58caf64dbdc58902ce599658633ee95e270843b37daabe2e0dc298861ac8c25f5f7e11a7de1e
kill:杀死容器
kill Kill containers
[root@docker ~]# docker-compose kill --help Force stop service containers.Usage: kill [options] [SERVICE...]Options: -s SIGNAL SIGNAL to send to the container. Default signal is SIGKILL.
可以看见后面也可以指定哪一个service
logs:将容器中的日志进行输出
logs View output from containers
[root@docker ~]# docker-compose logs --help View output from containers.Usage: logs [options] [SERVICE...]Options: --no-color Produce monochrome output. -f, --follow Follow log output. -t, --timestamps Show timestamps. --tail="all" Number of lines to show from the end of the logs for each container.
将db的日志输出最后的10行:
[root@docker lnmp]# docker-compose -f lnmp.yaml logs -t --tail db ERROR: tail flag must be all or a number[root@docker lnmp]# docker-compose -f lnmp.yaml logs -t --tail="10" dbAttaching to lnmp_db_1db_1 | 2017-11-09T14:48:24.618652188Z 2017-11-09T14:48:24.618090Z 0 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.db_1 | 2017-11-09T14:48:24.618654153Z 2017-11-09T14:48:24.618104Z 0 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.db_1 | 2017-11-09T14:48:24.621872173Z 2017-11-09T14:48:24.620524Z 0 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.db_1 | 2017-11-09T14:48:24.621897721Z 2017-11-09T14:48:24.620616Z 0 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.db_1 | 2017-11-09T14:48:24.658532597Z 2017-11-09T14:48:24.658110Z 0 [Note] Event Scheduler: Loaded 0 eventsdb_1 | 2017-11-09T14:48:24.660827605Z 2017-11-09T14:48:24.658335Z 0 [Note] mysqld: ready for connections.db_1 | 2017-11-09T14:48:24.660852816Z Version: '5.7.20' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server (GPL)db_1 | 2017-11-09T14:48:24.660857339Z 2017-11-09T14:48:24.658347Z 0 [Note] Executing 'SELECT * FROM INFORMATION_SCHEMA.TABLES;' to get a list of tables using the deprecated partition engine. You may use the startup option '--disable-partition-engine-check' to skip this check. db_1 | 2017-11-09T14:48:24.660861018Z 2017-11-09T14:48:24.658349Z 0 [Note] Beginning of list of non-natively partitioned tablesdb_1 | 2017-11-09T14:48:24.679766350Z 2017-11-09T14:48:24.679398Z 0 [Note] End of list of non-natively partitioned tables
pause:暂停service:
pause Pause services
[root@docker ~]# docker-compose pause --helpPause services.Usage: pause [SERVICE...]
将db这个service进行暂停:
[root@docker lnmp]# docker-compose -f lnmp.yaml pause dbPausing lnmp_db_1 ... done[root@docker lnmp]# docker-compose -f lnmp.yaml ps Name Command State Ports -------------------------------------------------------------------------------lnmp_db_1 docker-entrypoint.sh mysqld Paused 0.0.0.0:3306->3306/tcplnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp lnmp_php_1 /usr/local/php/sbin/php-fpm Up 9000/tcp
unpause:将暂停的service进行恢复:
unpause Unpause services
[root@docker lnmp]# docker-compose -f lnmp.yaml unpause dbUnpausing lnmp_db_1 ... done[root@docker lnmp]# docker-compose -f lnmp.yaml ps Name Command State Ports ------------------------------------------------------------------------------lnmp_db_1 docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcplnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp lnmp_php_1 /usr/local/php/sbin/php-fpm Up 9000/tcp
port:查看端口映射信息:
port Print the public port for a port binding
[root@docker ~]# docker-compose port --help Print the public port for a port binding.Usage: port [options] SERVICE PRIVATE_PORTOptions: --protocol=proto tcp or udp [default: tcp] --index=index index of the container if there are multiple instances of a service [default: 1]
[root@docker lnmp]# docker-compose -f lnmp.yaml port db 33060.0.0.0:3306
restart:重启service:
restart Restart services
[root@docker ~]# docker-compose restart --helpRestart running containers.Usage: restart [options] [SERVICE...]Options: -t, --timeout TIMEOUT Specify a shutdown timeout in seconds. (default: 10)
将nginx这个service进行重启:
[root@docker lnmp]# docker-compose -f lnmp.yaml restart nginxRestarting lnmp_nginx_1 ... done[root@docker lnmp]# docker-compose -f lnmp.yaml ps Name Command State Ports ------------------------------------------------------------------------------lnmp_db_1 docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcplnmp_nginx_1 /usr/local/nginx/sbin/ngin ... Up 0.0.0.0:80->80/tcp lnmp_php_1 /usr/local/php/sbin/php-fpm Up 9000/tcp
rm:删除已经停止的服务容器,没有停止删除不了
rm Remove stopped containers
[root@docker ~]# docker-compose rm --helpRemoves stopped service containers.By default, anonymous volumes attached to containers will not be removed. Youcan override this with `-v`. To list all volumes, use `docker volume ls`.Any data which is not in a volume will be lost.Usage: rm [options] [SERVICE...]Options: -f, --force Don't ask to confirm removal -s, --stop Stop the containers, if required, before removing -v Remove any anonymous volumes attached to containers -a, --all Deprecated - no effect.
[root@docker lnmp]# docker-compose -f lnmp.yaml rmNo stopped containers
如果加上-s/--stop那么就会先将服务进行停止,然后询问你是否删除:
[root@docker lnmp]# docker-compose -f lnmp.yaml rm -s dbStopping lnmp_db_1 ... doneGoing to remove lnmp_db_1Are you sure? [yN]
-f:代表在删除的过程中不会询问你是否删除,而是直接进行删除
run:运行一次性命令
run Run a one-off command
[root@docker ~]# docker-compose run --helpRun a one-off command on a service.For example: $ docker-compose run web python manage.py shell
scale:扩展容器,为service设置多个容器:
scale Set number of containers for a service
[root@docker ~]# docker-compose scale --helpSet number of containers to run for a service.Numbers are specified in the form `service=num` as arguments.For example: $ docker-compose scale web=2 worker=3This command is deprecated. Use the up command with the `--scale` flaginstead.Usage: scale [options] [SERVICE=NUM...]
[root@docker lnmp]# docker-compose -f lnmp.yaml scale nginx=2WARNING: The scale command is deprecated. Use the up command with the --scale flag instead.
而且在创建多个容器时需要考虑端口及ip的监听状况(占用的情况)
start Start services
stop Stop services
[root@docker lnmp]# docker-compose -f lnmp.yaml stop dbStopping lnmp_db_1 ... done[root@docker lnmp]# docker-compose -f lnmp.yaml start dbStarting db ... done
top:显示运行的进程
top Display the running processes
[root@docker lnmp]# docker-compose -f lnmp.yaml toplnmp_db_1 UID PID PPID C STIME TTY TIME CMD --------------------------------------------------------------systemd+ 38246 38223 7 23:27 ? 00:00:00 mysqldlnmp_nginx_1UID PID PPID C STIME TTY TIME CMD --------------------------------------------------------------------------------------------------------------------root 38367 38352 1 23:27 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx -g daemon off;www 38421 38367 0 23:27 ? 00:00:00 nginx: worker process lnmp_php_1UID PID PPID C STIME TTY TIME CMD -------------------------------------------------------------------------------------------------------------root 38208 38186 0 23:27 ? 00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)www 38307 38208 0 23:27 ? 00:00:00 php-fpm: pool www www 38308 38208 0 23:27 ? 00:00:00 php-fpm: pool www
指定某一个service:
[root@docker lnmp]# docker-compose -f lnmp.yaml top nginxlnmp_nginx_1UID PID PPID C STIME TTY TIME CMD --------------------------------------------------------------------------------------------------------------------root 38367 38352 0 23:27 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx -g daemon off;www 38421 38367 0 23:27 ? 00:00:00 nginx: worker process
version:显示docker-compose的版本信息:
version Show the Docker-Compose version information
[root@docker lnmp]# docker-compose -f lnmp.yaml versiondocker-compose version 1.17.0, build ac53b73docker-py version: 2.5.1CPython version: 2.7.13OpenSSL version: OpenSSL 1.0.1t 3 May 2016
docker-compose命令运行的级别在service层,而如果需要对容器进行修改等操作还是运行docker命令方便