introduce api versioning and move current apiset to v1

[anjannath]

fixes #2543

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[anjannath]

/hold

[anjannath]

/unhold

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@anjannath: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-crc	4eb051f1451088b2896e6a1c1efb950b82a555d0	link	true	/test e2e-crc

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[gbraad]

how is this used? such as, what does the URL look like for a V2 api?

[anjannath]

how is this used? such as, what does the URL look like for a V2 api?

the URL remains the same, we can provide the version using HTTP headers Version and Accept-Version

e.g:

$ curl -H 'Accept-version:v5' --unix-socket ~/.crc/crc-http.sock http://crc/api/config
Not Found

$ curl --unix-socket ~/.crc/crc-http.sock http://crc/api/config?cpus
{"Configs":{"cpus":4}}

$ curl -H 'Accept-version:v1' --unix-socket ~/.crc/crc-http.sock http://crc/api/config?cpus
{"Configs":{"cpus":4}}

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.