Lab #1: Create first docker compose file with ngnix and mysql
In this lab we are going to bringup a nginx and mysql containers using docker-compose.
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
Setup environment:
$ mkdir Myapp
$ cd Myapp
Now lets create passowrd file for our DB:
$ openssl rand -base64 32 > db_password.txt
$ openssl rand -base64 32 > db_root_password.txt
Create a docker-compose.yml file:
version: '3.1'
services:
#Nginx Service
webserver:
image: nginx:alpine
container_name: webserver
restart: unless-stopped
ports:
- "80:80"
- "443:443"
#Mysql DB
db:
image: mysql:5.7
container_name: Mysqldb
restart: unless-stopped
volumes:
- db_data:/var/lib/mysql
ports:
- "3306:3306"
environment:
MYSQL_ROOT_PASSWORD_FILE: /run/secrets/db_root_password
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD_FILE: /run/secrets/db_password
secrets:
- db_root_password
- db_password
secrets:
db_password:
file: db_password.txt
db_root_password:
file: db_root_password.txt
volumes:
db_data:
Create the compose container:
$ sudo docker-compose up
SSH into the instance and check the app
List out the compose services:
$ docker-compose ps
Name Command State Ports
------------------------------------------------------------------------------------------
Mysqldb docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcp, 33060/tcp
webserver nginx -g daemon off; Up 0.0.0.0:443->443/tcp, 0.0.0.0:80->80/tcp
Verify the nginx is running:
$ curl http://localhost
Verify the Mysql db:
$ docker exec -it Mysqldb mysql -u root -p
Enter the root password which is in db_root_password.txt