Machine resources for livepatch on-prem

The resource requirements for machines running livepatch on-prem components (postgresql, haproxy, livepatch) depend on the amount of machines being serviced by the deployment.

Minimal requirements are:

Service Memory CPUs Disk
postgresql 4GB 1 50GB
haproxy 2GB 1 50GB
livepatch 2GB 1 50GB

If postgresql is going to be used as the patchstore, we recommend increasing disk allocated to posgresql to 100GB.

The bundle needs to be deployed on machines running Ubuntu focal.