= Group Replicate =

Ref [https://dev.mysql.com/blog-archive/setting-up-mysql-group-replication-with-mysql-docker-images/ here]

We use docker swarm 3 nodes

1. pull image to 3 docker nodes 
{{{
$ docker pull mysql/mysql-server:8.0
}}}

2. Using docker-compose.yml file in atttached here and command '''docker-compose stack deploy -c docker-compose.yml db'''
{{{
$ docker-compose stack deploy -c docker-compose.yml db

Ignoring unsupported options: restart
Ignoring deprecated options:
container_name: Setting the container name is not supported.

Creating network db_mysqlgr
Creating service db_node2
Creating service db_node3
Creating service db_node1
}}}

3. Check with '''docker stack ps db'''
{{{
root@n1:/home/ubuntu/GR# docker stack ps db
ID             NAME         IMAGE                    NODE      DESIRED STATE   CURRENT STATE                ERROR     PORTS
z8tarrgj0isq   db_node1.1   mysql/mysql-server:8.0   n3        Running         Running 50 seconds ago                 
xt8vagtlz79c   db_node2.1   mysql/mysql-server:8.0   n2        Running         Running about a minute ago             
ve5o54jtwc4v   db_node3.1   mysql/mysql-server:8.0   n1        Running         Running about a minute ago          
}}}

4. On master node