We are planning to move away from an autoscaled Azure VMSS to an Azure Kubernetes Cluster for hosting our self-hosted Azure DevOps Pipeline build agents. I have now setup my first small test cluster and I am running some test pipelines. In these pipelines I am using the container feature of Azure pipelines to run jobs in dedicated container.
But as it seems this is not supported when using AKS since I am getting an error message (during "Initialize containers" step) that "docker" is not accessible/installed when running the pipeline.
Is this a limitation that I have to accept? This would mean I cannot use AKS for my self-hosted agents and pipelines. Or is there some workaround possible to make it work?
Thank you
It doesn't support nested containers. According to this official doc,
When you specify a container in your pipeline, the agent will first fetch and start the container. Then, each step of the job will run inside the container. You can't have nested containers. Containers aren't supported when an agent is already running inside a container.