Lab 21: The ‘rm’ Command

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The docker-compose rm command helps to Remove stopped containers.

Pre-requisite:

Tested Infrastructure

Platform	Number of Instance	Reading Time
Play with Docker	1	5 min

Pre-requisite

Create an account with DockerHub
Open PWD Platform on your browser
Click on Add New Instance on the left side of the screen to bring up Alpine OS instance on the right side

Assignment

Create a docker-compose.yml file
Bringup the containers
Stop the container of a single service
Removing container of stopped service
Stopping and Removing container of a service

Create a docker-compose.yml file

version: '3.7'
services:
  #Nginx Service
   webserver:
     image: nginx:alpine
     container_name: Nginx
     restart: unless-stopped
     ports:
       - "80:80"
       - "443:443"
   dbserver:
     image: mysql:5.7
     container_name: Mysqldb
     restart: unless-stopped
     ports:
       - "3306:3306"
     environment:
       MYSQL_ROOT_PASSWORD: Pa$$w0rd
       MYSQL_USER: test
       MYSQL_PASSWORD: Pa$$w0rd123
       MYSQL_DATABASE: test 
     volumes:
       - db_data:/var/lib/mysql
volumes:
  db_data:

Bringup the containers

$ docker-compose up -d

Checking container status

$  docker-compose ps
 Name               Command             State                    Ports                  
----------------------------------------------------------------------------------------
Mysqldb   docker-entrypoint.sh mysqld   Up      0.0.0.0:3306->3306/tcp, 33060/tcp       
Nginx     nginx -g daemon off;          Up      0.0.0.0:443->443/tcp, 0.0.0.0:80->80/tcp

Listout the services

$  docker-compose ps --services
webserver
dbserver

Stop the container of a single service

$  docker-compose stop webserver
Stopping Nginx ... done

Checking container status

$  docker-compose ps
 Name               Command             State                  Ports              
----------------------------------------------------------------------------------
Mysqldb   docker-entrypoint.sh mysqld   Up       0.0.0.0:3306->3306/tcp, 33060/tcp
Nginx     nginx -g daemon off;          Exit 0                               

Removing container of stopped service

$ docker-compose rm
Going to remove Nginx
Are you sure? [yN] y
Removing Nginx ... done

We can use -f, –force to skip asing confirmation to remove container.

Checking container status

$ docker-compose ps
 Name               Command             State                 Ports              
---------------------------------------------------------------------------------
Mysqldb   docker-entrypoint.sh mysqld   Up      0.0.0.0:3306->3306/tcp, 33060/tcp

Stopping and Removing container of a service

$  docker-compose rm -fs dbserver
Stopping Mysqldb ... done
Going to remove Mysqldb
Removing Mysqldb ... done

NOTE: By default, anonymous volumes attached to containers are not removed. You can override this with -v.

Lab 21: The ‘rm’ Command

Pre-requisite:

Tested Infrastructure

Pre-requisite

Assignment

Create a docker-compose.yml file

Bringup the containers

Checking container status

Listout the services

Stop the container of a single service

Checking container status

Removing container of stopped service

Checking container status

Stopping and Removing container of a service

Lab 21: The ‘rm’ Command

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