Docker FAQ

Do you support private Docker Hub images?

Yes, we support pulling images from a private repository in Docker Hub. Follow our Docker Hub integration guide to link your Release account with your private registry to pull images during the build process.

Do you support private (or public) Docker image repositories?

Yes, we support any Docker image repositories accessible on the internet or from within your own network (these must be reachable from the builders, which can be hosted in your own cluster). The private registry integration can be configured to point to any host or registry reachable from the builders with basic authentication provided. You can even specify multiple registries by creating multiple integrations and refer to each registry by hostname in the image: section of your Application Template.

Sometimes I get "Too Many Requests" when building or deploying.

429 Too Many Requests - Server message: toomanyrequests: You have reached your 
pull rate limit. You may increase the limit by authenticating and upgrading

If you see this error, you need to go to the Integrations tab and add your Docker Hub credentials to allow more pulls from Release. Unauthenticated requests to Docker Hub are limited and if your application is busy, you may need to upgrade to a paid Docker account to increase the number of builds allowed per hour.

Where are the Docker images that Release builds hosted?

The build process pushes to an ECR (AWS) or Container Registry (GCP) in your account when has_repo: true and to a private repository integration if has_repo: false in your Application Template. If you have credentials to the account you can docker login to pull as usual. The SHA and registry address are available in the build logs or pod terminal.