this post was submitted on 26 Mar 2025
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I was using it to deploy VMs to vsphere, and to test, started by deploying against a local KVM. Got it all working, copied the config to my prod vsphere, hoping I could just update the creds, and bunch of the KVM flags didn't work for vsphere, so I had to fix/rewrite them, which wasted a lot of time.
TF would be amazing if it was a single API that appled generically to all backends. And it sorta is for the most part, but there are just a few footguns that can really spoil the mood. If they had a core API and anything non-portable was clearly documented, that would be good as well.
Yeah, that's the other thing to keep in mind, since the KVM APIs are different from the vSphere APIs, you can't just swap providers without changes. But if you were going from a test vSphere stack to a prod, you could update the endpoint and be just fine.
Hashicorp has caught some shit in the past about claiming the code covers multiple providers. Technically, it can if you do weird shit with modules, but in reality there isn't a clean way to have a single, easily understandable project that can provision to multiple platforms.