Post-migration configuration

When upgrading MSR, customers must manually update some of their settings. Below are key aspects to consider after a successful migration:

Configuration area	Required actions
Project Visibility	Project visibility (public/private) must be configured manually. In MSR 3.x, private and public image repositories could coexist under a single organization. In MSR 4, visibility is set only at the project level. Mixed public/private repositories under one organization in MSR 3.x must be manually adjusted.
Project Permissions	Harbor organizes repositories within projects. Ensure that project-level permissions are properly recreated. See: Managing Project Permissions.
Registry Replication	Re-establish any replication or mirroring rules and schedules in Harbor. See: Configuring Replication.
Image Tag Retention	Manually configure existing retention policies for images in Harbor to ensure appropriate lifecycle management. See: Managing Tag Retention Rules.
Scanning Settings	Configure or re-enable Trivy image scanning policies. See: Vulnerability Scanning.
Audit Logs	Set up logging mechanisms in Harbor for compliance. See: Log Rotation in Mirantis Secure Registry.
Webhooks	Recreate and configure webhooks to point to Harbor. See: Configuring Webhooks.
CI/CD Pipelines	Update custom CI/CD pipelines to reference Harbor.
Signed Images	Reconfigure image signing using cosign. See: Signing Artifacts with Cosign.
Garbage Collection Settings	Manually reconfigure garbage collection policies in Harbor. See: Managing Garbage Collection.
Certificate Management	Re-establish custom certificate configurations in Harbor.
API Updates	Update API endpoints and account for changes in Harbor’s API.

Configure environment

In addition, you must also manually update your infrastructure settings.

Infrastructure component	Required actions
CICD Pipelines	Update custom CICD pipelines to leverage the new environments.
DNS	Update DNS CNAMEs to point to the new hosts after migration.