Given that all infrastructure lives on AWS, and that we are right now on a free plan on DockerHub, it will be easier going forward if all Docker images live on AWS ECR:

MIGRATION TODO:

• testground - image for the testground daemon - https://github.com/testground/testground/blob/master/Dockerfile.testground
• sidecar - image for the sidecar - https://github.com/testground/testground/blob/master/Dockerfile.sidecar
• sync-service - image for the sync-service - https://github.com/testground/sync-service/blob/master/Dockerfile
• ... TBD - any auxiliary dependencies that we need to maintain for the operation of Testground - maybe weave-kube, goproxy, and a few others.