Allow to run a script (e.g. for authentication) before starting CI services
Proposal
I would love to be able to run a script before any service
of the CI job are pulled and started, e.g. to authenticate to a private AWS Elastic Container Registry.
Current solutions use hacky ways which update CI/CD settings every 12 hours with new ECR credentials, or, alternatively, an own docker logic needs to be established in order to use an image from a private AWS ECR as service.