Adventures of a Small Time OpenStack Sysadmin relate the experience of converting a small VMware cluster into two small OpenStack clusters, and the adventures and friends I made along the way.
Adventures of a Small Time OpenStack Sysadmin Chapter 028 - Move everything from Legacy VMware cluster to OpenStack Cluster 1
Moving on to brighter, happier tasks. Such as moving everything off the old VMware cluster to the new OpenStack Cluster 1 under Plan 1.0, so that when I'm done the old VMware cluster hardware can be repurposed into OpenStack Cluster 2 under Plan 2.0.
As usual with migration projects this finds the technological debt in automation and orchestration and backup systems... so the last 10% of systems end up taking 90% of the time, as is usual with IT projects. In the end everything was moved by 28-June-2022. It seemed to take forever because I took the opportunity to bring everything up to sensible standards WRT testing and verifying backup processes "for reals" and updating documentation in netbox and cleaning up DNS entries etc.
As an example, there were domain controllers set up before 2017, upgraded periodically, backed up, tested, monitored, always operational, but never reinstalled in over five years. Samba and FreeBSD "just work!" and normally that's good news. So I got my first experience in half a decade on transferring FSMO roles using Samba or even just adding and removing domain controllers at the command line. Also had fun replicating my SYSVOL volumes, and setting my home directories for users to new fileserver hostnames for the first time in half a decade LOL. Fun, educational, sometimes exciting, but mostly it was time consuming. Everything worked on OpenStack Cluster 1, and nothing remained on the old VMware cluster except vCenter, in the end...
Tomorrow we talk at length about Plan 2.0 and how it differs from Plan 1.0
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