docker-compose file for mariadb galera cluster

galera_cluster.yml

node1:
    image: hauptmedia/mariadb:10.1
    hostname: node1
    ports:
      - 13306:3306
    environment:
      - MYSQL_ROOT_PASSWORD=test
      - REPLICATION_PASSWORD=test
      - MYSQL_DATABASE=maria
      - MYSQL_USER=maria
      - MYSQL_PASSWORD=test
      - GALERA=On
      - NODE_NAME=node1
      - CLUSTER_NAME=maria_cluster
      - CLUSTER_ADDRESS=gcomm://
    command: --wsrep-new-cluster

node2:
    image: hauptmedia/mariadb:10.1
    hostname: node2
    links:
      - node1
    ports:
      - 23306:3306
    environment:
      - REPLICATION_PASSWORD=test
      - GALERA=On
      - NODE_NAME=node2
      - CLUSTER_NAME=maria_cluster
      - CLUSTER_ADDRESS=gcomm://node1
      
node3:
    image: hauptmedia/mariadb:10.1
    hostname: node3
    links:
      - node1
    ports:
      - 33306:3306
    environment:
      - REPLICATION_PASSWORD=test
      - GALERA=On
      - NODE_NAME=node3
      - CLUSTER_NAME=maria_cluster
      - CLUSTER_ADDRESS=gcomm://node1

It is aweome! I could test galera without edit mysql files. But I have a doubt, if I stop the node1, insert some records and then start node1 again, we will have a desync for this node. Do you know how to solve this?

You need to restart node1 without --wsrep-new-cluster or it will create a new standalone single node cluster.