docker-in-docker (ryuk support) doesn't work testcontainers-dotnet

[jonesbusy]

Hi,

We are using kubedock 0.15.1 on OKD with ryuk support and it works well with testcontainers-java and testcontainers-node modules.

But a behavior is different with testcontainers-dotnet with the bind mount volume.

From reading the code the dind-sidecar is added when a target /var/run/docker.sock

kubedock/internal/backend/deploy.go

Line 503 in 8521b93

func (in *instance) addDindSidecar(tainr *types.Container, pod *corev1.Pod) error {

Works for Java and Node testcontainer module

But the .NET implementation fail because not sidecar is created

CI is run on Jenkins pipeline and environment is similar to all implementation

pipeline {
  agent {
    kubernetes {
        yaml(
           // dotnet container and kubedock here
        }
    }
  }
  environment {
    ...
    DOCKER_HOST = 'tcp://localhost:2475'
    ...
  }
  ....
}

So I suspect something is different from the node and other testcontainer implementation.

But looking at the code the unix socket mount is added correctly : https://github.com/testcontainers/testcontainers-dotnet/blob/develop/src/Testcontainers/Containers/ResourceReaper.cs#L416 and working when running on a docker environment

I'm wonder if it's something similar to #30 (comment)

Let me know if I can provide more information

Thanks!

[joyrex2001]

Hi @jonesbusy, thanks for these details. Looks like you were right with regards to it failing due to the missing hostconfig mount support. I added that, and the dind-sidecar is now being created when ryuk is enabled.

[jonesbusy]

Hi!

I confirm the issue is resolved using 'latest' container image!

Thanks a lot