docker-compose-cql-es.yml : Docker Compose cleanup: tags, healthchecks, environment variables

[dblugeon]

Hello JanusGraph Team,

I’ve been experimenting with the Docker Compose example and noticed a few areas where improvements could be made:

• The janusgraph-visualizer service is the only one using the depends_on directive, but it doesn’t include the condition: service_healthy option. As a result, it doesn’t wait for the JanusGraph server to be fully ready. This causes issues, especially since Cassandra takes some time to become available.
• The health check for janusgraph-visualizer fails because the curl utility is missing from the image.
• The service currently uses the latest tag. It would be more stable to reference a fixed version instead.
• The environment variables for janusgraph-visualizer are outdated. The latest version uses GREMLIN_HOST and GREMLIN_PORT, not GRAPH_URL. See the .env file for reference.
• The versions of Elasticsearch and Cassandra included in the Compose file are slightly outdated.

Regards