Find a smoother redeployment strategy

[jamierajewski]

Currently, the deployment strategy looks like:

• Detach important volumes:
  • Bastion (for our own stuff)
  • Monitor (for custom changes to the grafana dashboard)
  • openLDAP (current LDAP database)
• Do NOT use terraform destroy - this doesn't seem to obey the openstack instance rule of not deleting volumes when instances are deleted
  • Instead, delete the instances manually in openstack (only necessary if changes aren't detected by terraform, like a template change; otherwise, terraform apply will update the instance)

This is a bit rough and not entirely secure as one has to remember to detach the volumes for safety.

[jamierajewski]

The new strategy (for now) is to use an NFS mount to hold LDAP and Grafana/Prometheus data. This simplifies the process greatly as I can ignore these, but it takes away from the general-purpose design of the project. Will open a separate issue focused on dealing with this.