Example compose file for a test galera cluster on a single host, as part of an answer to this Stack Exchange: http://stackoverflow.com/questions/41573048/how-to-debug-wsrep-sst-failed-1-operation-not-permitted-with-a-mariadb-gal/41622952#41622952

example-compose-mariadb-galera.yml

version: '2'
services:
  db-bootstrap:
    image: dayreiner/centos7-mariadb-10.1-galera:latest
    container_name: db1
    restart: never
    expose:
     - "3306"
     - "4567"
     - "4568"
     - "4444"
    ports:
     - 3307:3306
    volumes:
     - /opt/test/db1:/var/lib/mysql
    environment:
     - CLUSTER=BOOTSTRAP
     - CLUSTER_NAME=testdb
     - MYSQL_ROOT_PASSWORD=test

  db2:
    image: dayreiner/centos7-mariadb-10.1-galera:latest
    container_name: db2
    restart: never
    expose:
     - "3306"
     - "4567"
     - "4568"
     - "4444"
    ports:
     - 3308:3306
    volumes:
     - /opt/test/db2:/var/lib/mysql
    environment:
     - CLUSTER=db1,db2,db3
     - CLUSTER_NAME=testdb
     - MYSQL_ROOT_PASSWORD=test
     
  db3:
    image: dayreiner/centos7-mariadb-10.1-galera:latest
    container_name: db3
    restart: never
    expose:
     - "3306"
     - "4567"
     - "4568"
     - "4444"
    ports:
     - 3309:3306
    volumes:
     - /opt/test/db3:/var/lib/mysql
    environment:
     - CLUSTER=db1,db2,db3
     - CLUSTER_NAME=testdb
     - MYSQL_ROOT_PASSWORD=test
     
  db1:
    image: dayreiner/centos7-mariadb-10.1-galera:latest
    container_name: db1
    restart: never
    expose:
     - "3306"
     - "4567"
     - "4568"
     - "4444"
    ports:
     - 3307:3306
    volumes:
     - /opt/test/db1:/var/lib/mysql
    environment:
     - CLUSTER=db1,db2,db3
     - CLUSTER_NAME=testdb
     - MYSQL_ROOT_PASSWORD=test