I've got a process to do this (recover Palo Alto from AWS snapshot) but no way to practice before a disaster. Can anyone confirm I have the important steps covered with respect to networking?
1. Create AMI from snapshot.
2. Launch instance using that AMI.
3. Ensure it goes in the correct management subnet when doing the above (other stuff like security group).
4. Move all ENIs from old/broken PA over to this one with exception of eth0 .
If anyone knows of a tutorial on this (specifically Palo Alto) please let me know. Not sure if there is a free way to rehearse this on AWS ?
You will also want to export the Palo NGFW configuration. Though I know we are just duplicating the same data into a new instance, I've seen less than perfect replication occur before. I'm not sure there is a free way to test this, but, we do have an IronSkillet on our Github that scripts an AWS HA failover. I'm sure some of that could be frankenstein'd into taking down a network for coldstart failover.
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