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opencast / opencast-docker

Dockerfiles for Opencast
https://quay.io/organization/opencast/
Educational Community License v2.0
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Distributed Docker compose with MariaDB nodes can't communicate each others #110

Closed mliradelc closed 5 years ago

mliradelc commented 5 years ago

I just tested this version and I have some issues:

The worker, presenter and the and the admin can't see each other because the URLs are configured without a proper alias or the internal docker network.

mtneug commented 5 years ago

I could not reproduce the issues. Docker compose will automatically create a Docker network with a DNS server that resolves the opencast-(admin|worker|presentation) domains to the correct IPs.

Using the next branch for the upcoming Opencast 7, I run the following commands:

$ cd path/to/repo
$ docker-compose -p opencast-multiserver -f docker-compose/docker-compose.multiserver.mariadb.yml up

Could you describe your setup in more detail?

mliradelc commented 5 years ago

I'm using the official docker for mac, the version is Docker version 18.09.2, build 6247962

after that, I cloned the repo and use the "next" branch with the same command as you suggested.

The first problem I had is the exposed port for MariaDB, that caused a conflict with my installed MariaDB, so I commented the line - 3306:3306 of the MariaDB configuration.

Later I have the network problem I described here, but I just solved expressing the aliases for the default network like this for each container:

    networks:
      default:
        aliases:
          - activemq

@mtneug you have right, the docker compose creates a network, but for any reason didn't work for me until I explicitly configured the aliases.

mliradelc commented 5 years ago

Solved with the change of the DDL file.