Separate persistent data to individual disks on the vSphere Integrated Containers Appliance

[dbarkelew]

Tracking for separating the MySQL DB for the registry and management portal to second vDisk and separate the log files to a third vDisk.

Use case to mitigate issues if the root disk becomes full.

Bug Ref# 1954150

[andrewtchin]

User Statement:

As a user I want a separate persistent disk for each logs and databases on the appliance.

Details:

Acceptance Criteria:

• Limit log size
• Limit database size
• Separate disks
• Handles upgrade
• Documentation

[corrieb]

We need to consider the needs of backup here - what is ephemeral data vs persistent data. I would suggest for example that logs could just go in a separate logical partition from images and be on the same VMDK - no need for either to be backed up. Any database info should be on a VMDK that can be backed up independently.

[dbarkelew]

I have had customers look at logs as important particularly ones that have SLAs with their clients and need to account for any issues. If the logs do not take that much space, including them in the backup would benefit the customer who require RCAs for any downtime.

[corrieb]

@dbarkelew Interesting. I know customers consider logs important, but didn't know that there was a backup strategy in place around those. Good input. Just wanted to make sure that the business needs fit the solution

[mdubya66]

adding to 1.3 and making high priority per @pdaigle

[andrewtchin]

@stuclem This will need docs on the different disks now used by the appliance

[ghost]

@stuclem The layout is consistent with the ova design doc, but in short we have four disks now.
/ - root disk
/storage/data/ - data disk; a catch-all disk containing, among other things, the harbor registry.
/storage/log/ - logging disk; contains the harbor and admiral directories for component logs.
/storage/db/ - database disk; contains harbor's mysql, clair, and notary databases.

[andrewtchin]

Referenced design doc is here https://github.com/vmware/vic-product/blob/master/installer/DESIGN.md