[Autoscaler] Pulling drone-runner-docker from AWS ECR

[briancurt]

@briancurt

edit: if my setup is correct, just guessing…could there be a sort of race condition where the autoscaler attempts to pull DRONE_AGENT_IMAGE before the target host logs in to ECR and then it gives up and doesn’t retry?

I discard this possibility, I have verified and the .docker/config.json file on the host is created way before Autoscaler attempts to pull the image.

And when the Autoscaler logs output "error":"Error response from daemon: Get my-drone-runner-docker: no basic auth credentials", I do a docker pull my-drone-runner-docker on the target host and I can pull the image without problems.