Service fails on startup about docker-mariadb-cluster

[melliott-sis]

I believe this is due to some issues with naming/service discovery with docker compose or docker stack deploy. I was using docker stack deploy to run this in swarm, and I found I needed to add an alias, matching DB_SERVICE_NAME.

Provided you had a pre-existing network named "database" (docker network create -d overlay --subnet=172.100.100.0/24 database) your docker-compose.yml may need to look like this..

version: "3"
services:

  database:
    image: toughiq/mariadb-cluster:10.1
    environment:
      DB_SERVICE_NAME: database
      MYSQL_ROOT_PASSWORD: 12345678
      MYSQL_DATABASE: test
      MYSQL_USER: test
      MYSQL_PASSWORD: 12345678
    networks:
       database:
         aliases:
          - database

I can't guarantee that you're hitting the same problem I was, but it looks similar. I'm actually hoping to write up a blog post about this specific issue so hopefully I can remember to come back here and link it...