Increase disk size for BOSH postgres database (AWS/RDS)

[struijenID]

Hi,

Recently, I ran into some trouble with the bosh postgres database: it ran out of diskspace. The AWS console showed that the RDS instance's disk's capacity was limited to 10GB (db.t2.small instance type). I manually changed it's config to allow it to use up to 50GB (dynamically provisioned).

It appears that a bosh database that is larger than 10GB is no exception. In fact, over on the bosh Slack channel, I was informed that cloudfoundry has a 1TB disk in use for their database as task logs may grow long and large in numbers.

Using the following bosh parameter, I would be able to change the disk size of the DB: https://github.com/cloudfoundry/bosh-deployment/blob/master/bosh.yml#L11

I found it is possible to select the instance type of the database in the readme https://github.com/EngineerBetter/control-tower/blob/master/docs/deploy.md by passing the parameter --db-size value. However disk space does not seem like a configurable attribute.

Does control-tower support configuring the maximum disk size of the database?

Kind regards,
Stefaan

[crsimmons]

Modifying the size of the director's database is not something we have implemented in Control Tower. In theory it wouldn't be too difficult to add a flag and pass it through to the manifest like we're doing for other things. Currently everyone at EngineerBetter is working with customers so we have limited bandwidth to add new features. If you want to take a stab at it we're always open to PRs.