K3s Module

[nemoo]

Not an issue but more of a question.

testcontainers-java now features a module for lightweight Kubernetes clusters called K3s: https://github.com/testcontainers/testcontainers-java/blob/master/modules/k3s/src/main/java/org/testcontainers/k3s/K3sContainer.java

The module documentation can be found here: https://www.testcontainers.org/modules/k3s/

Will this module also be wrapped in testcontainers-scala?

[dimafeng]

Hi @nemoo, thank you for your question! This project is driven by the community and java modules are getting added to the scala version as the community needs it.

If you'd like to contribute support for this module, it would be huge help for this project!

[nemoo]

Great, I will give it a go.

Is there a contribution guide? When I tried sbt publishLocal it only created the scala 2.12 versions, not the scala 2.13 version.

Edit: ok for testing I now set the scala version explicitly via ++ 2.13.6 publishLocal

[dimafeng]

Sorry, unfortunately I don't have a contribution guide but you can check out several recent PRs that add support for various containers:
https://github.com/testcontainers/testcontainers-scala/pull/126/files
https://github.com/testcontainers/testcontainers-scala/pull/211/files
https://github.com/testcontainers/testcontainers-scala/pull/208/files

[nemoo]

This requires also a bump to testcontainers java 1.16.3. I guess that would be a different pull request?

[nemoo]

Also, in the original java k3s module test, a special log consumer Slf4jLogConsumer is used:
https://github.com/testcontainers/testcontainers-java/blob/master/modules/k3s/src/test/java/org/testcontainers/k3s/OfficialClientK3sContainerTest.java

K3sContainer k3s = new K3sContainer(DockerImageName.parse("rancher/k3s:v1.21.3-k3s1"))
                .withLogConsumer(new Slf4jLogConsumer(log))

Do we have any examples on how the use of .withLogConsumer() should be ported over to scala?

[dimafeng]

This requires also a bump to testcontainers java 1.16.3. I guess that would be a different pull request?

It's fine if you bump it here

Do we have any examples on how the use of .withLogConsumer() should be ported over to scala?

I think it'd look like this:

case class K3sContainer(
  
  logConsumer: Slf4jLogConsumer 
) {
...
c.withLogConsumer(logConsumer)
...
}

example https://github.com/testcontainers/testcontainers-scala/pull/126/files#diff-19e736fb3cde3f8c030b9fc3639026ec28e9bd61c8caa82096dfeb69e9f918f3R29