Combining ACI build agents with sidecar containers

[arjanschaaf]

I'm not sure if I'm actually asking the same question as in issue #20. But my question is this: I want to achieve something similar like described here: https://jenkins.io/doc/book/pipeline/docker/#running-sidecar-containers

I want to launch an Jenkins slave agent to kick off my build proces, but for my complex build I need additional services to be available, for example an MySQL database. I want to start an additional ACI container making this service available to my build. Is this achievable with the current Azure Container Agents plugin?