Expose Cloud Provider Offering Availability as Metrics

[jonathan-innis]

Tell us about your request

This idea was originally proposed by @bwagner5.

The idea here would be to expose a gauge metric like karpenter_cloudprovider_offering_available with labels instance_type, capacity_type, and zone.

This metric would be set to 1 for all offerings that Karpenter is aware are available from the cloud provider. If the cloudprovider changed its mind about the availability of the offering (i.e. for AWS, there is an ICE [Insufficient Capacity Error] when launching an instance) then the gauge would be exposed as 0

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[chu-yik]

interested to take this one up :)

[njtran]

@chu-yik any progress here?