Docker registry

Register a docker registry

1. The pre-requisites for registration of a docker registry are
   1. A docker registry URL pointing to a docker registry in DockerHub or AWS ECR (Elastic Container Registry).
   2. If the docker registry needs credentials to pull images, then a Secret must be registered on the Secrets page. The type of secret needed for DockerHub hosted repo is 'Basic Auth', and that for AWS ECR is 'AWS'.
2. Navigate to the docker registry page under Data > Process > Docker Registries on the left navigation panel.
3. Click the Register button highlighted below.
   
4. Fill in the Docker Registry Details.
   
   1. Name: Enter an identifiable name to the docker registry.
   2. Registry type: Depending on where the registry is hosted, select from a drop-down that consists of 'Dockerhub' and 'AWS ECR'
   3. Registry URL: Enter the registry's URL that is typically in the form of registry.hub.docker.com/repository123 (for Dockerhub type of registry) and <account>.dkr.ecr.<region>.amazonaws.com/<repo> for AWS Elastic Container Registry (ECR) type of repo.
   4. Access type: If the docker registry is hosted without any credentials setup, then select 'Public'. If the docker registry is hosted with credentials setup, select 'Private' and select a registered Secret Key.
5. Click the Save button.
   On successful registration, the docker registry will be listed on the Docker Registries page as below.
   

Edit docker registry details

1. Click the Edit button on the card corresponding to the docker registry that needs to be edited.
   
2. Update the fields in the edit form shown below.
   Only the name, access type and secret are allowed to be edited.
3. Click the 'Save' button.

Unregister a docker registry 

An unregistered registry cannot have its docker image registered on Data Explorer. The deregistration is a step towards deprecating/retiring a docker registry. In future releases, additional support to fully delete a docker registry will be provided. To unregister a docker registry, 

1. Click the Unregister button on the card corresponding to the docker registry to be unregistered.
   
2. Confirm Unregister operation on the following confirmation dialog box.