WIP: Recover properly when bastion goes down

[dippynark]

What this PR does / why we need it: Allows the bastion to be created by reapplying when there it goes down

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #187

Allow bastion to be recreated by reapplying

[jetstack-bot]

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[dippynark]

/assign @simonswine

[dippynark]

/test verify quick

[dippynark]

/assign
/unassign @simonswine

[simonswine]

I need a bit more context what this is trying to achieve

[dippynark]

@simonswine at the time this was written, the bastion would not be recreated from a reapply if it was deleted or was down for whatever reason - it also tries to speed up plan time when the bastion is down (so that the tarmak vault cluster resource and vault token resources don't hang for ages) but due to issues with terraform not rereading data resources at refresh time (hashicorp/terraform#17034) this was not perfect

[jetstack-bot]

@dippynark: PR needs rebase.

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[jetstack-bot]

@dippynark: The following tests failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
tarmak-quick-verify	7306c38	link	/test verify quick
tarmak-puppet-module-tarmak-acceptance-1-14-centos	7306c38	link	/test puppet-tarmak-acceptance-centos v1.14

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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