Lab 12: The ‘Restart’ Command

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The docker-compose restart command help us to restart the services.

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
Create the container and network
Restart the service
Restart a single 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:

Create the container and network

$ docker-compose up --no-start

Creating network "root_default" with the default driver
Creating Mysqldb ... done
Creating Nginx   ... done

Checking container status

$ docker-compose ps
 Name               Command             State    Ports
------------------------------------------------------
Mysqldb   docker-entrypoint.sh mysqld   Exit 0        
Nginx     nginx -g daemon off;          Exit 0      

Listout the services

$  docker-compose ps --services
webserver
dbserver

Restart the service

$ docker-compose restart
Restarting Mysqldb ... done
Restarting 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;          Up      0.0.0.0:443->443/tcp, 0.0.0.0:80->80/tcp                        

Restart a single service

$ docker-compose restart webserver
Restarting Nginx ... done

Set a time wait for stop before killing the container

$ docker-compose restart -t 30 webserver

Specify a shutdown timeout (-t/–timeout) in seconds(default: 10)

Lab 12: The ‘Restart’ Command

Pre-requisite:

Tested Infrastructure

Pre-requisite

Assignment

Create a docker-compose.yml file

Create the container and network

Checking container status

Listout the services

Restart the service

Checking container status

Restart a single service

Set a time wait for stop before killing the container

Lab 12: The ‘Restart’ Command

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