Issue computing the cluster_join

[cristic83]

I think there is a issue computing the running nodes at lines: https://github.com/severalnines/galera-docker-mariadb/blob/master/entrypoint.sh#L250#L256 . The test should be done on the running_nodes3 variable, not running_nodes2.

[cristic83]

Also, I was wondering if the computation of the cluster_join based on the etcd (lineshttps://github.com/severalnines/galera-docker-mariadb/blob/master/entrypoint.sh#L107#270 ) can't be made before the line https://github.com/severalnines/galera-docker-mariadb/blob/master/entrypoint.sh#L16 since if the etcd is not reachable it doesn't make sense to start the database anyway.

[cristic83]

@ashraf-s9s : I've noticed that the above two issues have not been fixed, so I'm attaching the file with the changes we've performed to fix them, for your reference.
docker-entrypoint.sh.txt