Add `--preemptible` switch as an option in setup.sh about gcloudrig HOT 6 CLOSED

Also the script does not work when the preemptible cpu's quota is anything OTHER then 0. I requested 1, but the script stopped working, and it was the quota mismatch when I dug into the problem

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I'm not sure what to make of Google's statement there, since I'm literally doing this now to stretch out how long the one-time $300 free credits lasts.

It's likley they mean that preemptible instances don't take advantage of the "always free" tier limits, as listed here: https://cloud.google.com/free/docs/gcp-free-tier#always-free-usage-limits

If you're sure you don't want a preemptible instance, as a quick fix just remove this line:
https://github.com/putty182/gcloudrig/blob/master/globals.sh#L433

Will look at adding a preemptible option in the setup.sh prompts to do just this.

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Are you going to add an option in the setup.sh process to toggle preemptible instances? That would solve people's problems if the preemptible isn't working in there case, as it did in mines.

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originally from #50

Also, this is unrelated to this issue, but when setting up an instance using the tool, it only seems to start and set up correctly if I remove the --preemptible line in globals.sh. I have waited for a more than enough time for the preemptible instance to actually start running, but it always keeps restarting (and the setup log linked in the end of setup,sh doesn't actually run any of the scripts windows-start-up scripts / boot scripts) The instance just keeps restarting. My quota is good, and I've tried deleted the repo, destroying everything (destroy.sh) from my shell directory and cloning and running the whole setup again, with the same results, which sucks because I'd really want to take advantage of preempts.

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Paid billing is a requirement to use GPU instances; i.e. "upgrading" a free trial is required, but credits (if available) are still consumed first. Not sure when that kicked in, but that's the case now.

Since the goal of this project is to minimise costs, the default behaviour is still to use pre-emptible instances but it's now editable at the top of globals.sh (which will be documented one day!)

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For future visitors: I contacted GCP support, and indeed:

It's likley they mean that preemptible instances don't take advantage of the "always free" tier limits, as listed here: https://cloud.google.com/free/docs/gcp-free-tier#always-free-usage-limits

What @putty182 is saying here is correct. Preemptible GCP instances take advantage of GCP free credits, but they are not part of the GCP "always free" tier. Meaning that if you have free credits left, you are not charged; otherwise, you are guaranteed to be charged.

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