Update docker

Author: onlineTrainingguy

DockerCommands/docker

@@ -219,6 +219,59 @@ mysql> select * from emp;
 +------+---------+
 1 row in set (0.00 sec)
 
+----------------------
+Stack and Compose
+sudo curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+chmod +x /usr/local/bin/docker-compose
+ docker-compose --version
+
+#docker-compose.yml
+version: '3.3'
+
+services:
+   db:
+     image: mysql:5.7
+     volumes:
+       - db_data:/var/lib/mysql
+     restart: always
+     environment:
+       MYSQL_ROOT_PASSWORD: somewordpress
+       MYSQL_DATABASE: wordpress
+       MYSQL_USER: wordpress
+       MYSQL_PASSWORD: wordpress
+
+   wordpress:
+     depends_on:
+       - db
+     image: wordpress:latest
+     ports:
+       - "8000:80"
+     restart: always
+     environment:
+       WORDPRESS_DB_HOST: db:3306
+       WORDPRESS_DB_USER: wordpress
+       WORDPRESS_DB_PASSWORD: wordpress
+       WORDPRESS_DB_NAME: wordpress
+volumes:
+    db_data: {}
+
+
+docker-compose up -d
+docker container ls
+docker-compose scale db=3
+docker container ls
+docker-compose down
+docker container ls
+cp docker-compose.yml stack.yml
+docker stack --help
+docker stack deploy -c stack.yml mystack
+docker stack ls
+docker stack services mystack
+docker service ps mystack_db
+docker service ps mystack_wordpress
+docker network ls
+docker stack ls
+docker stack rm mystack