SSL support with Docker Compose does not work as documented

[itsmevichu]

Fixes gh-49205

[itsmevichu]

I'll add the tests shortly

[itsmevichu]

I have tested this for Elasticsearch; still need to test it for MongoDB and Cassandra.

[wilkinsona]

Thanks for your work on this thus far, @itsmevichu. I think RabbitDockerComposeConnectionDetails is also affected.

[snicoll]

@itsmevichu I don't see the tests in the PR. Have I missed something?

[itsmevichu]

@snicoll @wilkinsona I’ve added the tests. At the moment, I’m running them via the Intellij JUnit plugin. How can we run these from the terminal instead? Is there a specific gradle task for executing these docker-compose tests?

[wilkinsona]

Thanks, @itsmevichu. You can run the dockerTest task in the relevant modules. For example:

./gradlew module:spring-boot-elasticsearch:dockerTest

[itsmevichu]

I tried, but running ./gradlew module:spring-boot-elasticsearch:dockerTest doesn’t seem to execute the Docker Compose integration tests.

[snicoll]

@itsmevichu you may have executed the module before Docker was enabled on your machine and the gradle cache doesn't unfortunately take that into account. Make sure docker ps works and then try running again with an additional --rerun-tasks

[itsmevichu]

Thanks @snicoll! Turns out the DOCKER_HOST env variable wasn’t configured, and that’s what caused the problem. I was expecting a “Docker daemon is not running” error, so that’s what made it confusing. It is working now :)