Cross-platform instance initialization

Gerrit User 35769 5a8e24485f Create patch set 2 ... Uploaded patch set 2. Patch-set: 2 Subject: Support alternate 'public-keys' format for NoCloud service. Commit: aeeef30df8 Tag: autogenerated:gerrit:newPatchSet Groups: aeeef30df8		2023-02-09 23:30:42 +00:00