1K Omnibus backups on GCP - runbook and validation

Proposal

Create a runbook for successfully backing up and restoring a 1K Omnibus instance on GCP.

Scenario:

• Reference architecture: 1k Omnibus
• Platform: GCP
• PG data: 15GB
• Git data: 30GB
• LFS data: 30GB
• Backup during maintenance window

Test data types:

The test data should include what is described in the documentation https://docs.gitlab.com/ee/raketasks/backup_gitlab.html

• Database
• Attachments
• Git repositories data
• CI/CD job output logs
• CI/CD job artifacts
• LFS objects
• Terraform states
• Container Registry images
• GitLab Pages content
• Packages
• Snippets
• Group wikis

All blob type data uses local storage as opposed to object storage

Approach:

• Build the environment
• Create the test data
• Validate the backup is successfully restored
• Record RTO/RPO for reference
• Describe details of process followed to take backup and restore on a new host. Details of commands run and on which hosts/nodes.