Create mariadb cluster using Docker Swarm

mariadb-swarm.sh

#!/bin/sh

# first, create overlay network to make all of your nodes can to talk to each others.
docker network create -d overlay mariadb-network

# then, create primary node, make sure you create the service with only 1 replica
docker service create \
    --name mariadb-master \
    --replicas 1 \
    --mount target=/var/lib/mysql,source=/vol/mariadb-master,type=bind \
    --network mariadb-network \
    -e MYSQL_ROOT_PASSWORD=rootpassword \
    -e MYSQL_REPLICATION_PASSWORD=replicationpassword \
    -e MYSQL_CLUSTER_ADDRESS= \
    ball6847/mariadb-cluster

# now, your mariadb farm, (set --publish port if needed)
docker service create \
    --name mariadb \
    --replicas 1 \
    --mount target=/var/lib/mysql,source=/vol/mariadb,type=bind \
    --network mariadb-network \
    -e MYSQL_ROOT_PASSWORD=rootpassword \
    -e MYSQL_REPLICATION_PASSWORD=replicationpassword \
    -e MYSQL_CLUSTER_ADDRESS=mariadb-master \
    ball6847/mariadb-cluster

# finally, you can scale your farm as you wish, but make sure it run one container per node.
docker service scale mariadb=2