Adds a new metrics to provide claimRef information to Prometheus. In
tracking down lingering PVs, it would be of interest to know where the
PV came from. With the claimRef information, it is easier to track down
the resource owners and inform that they have unclaimed PVs lingering
around.
Main motivation is that PVs cost money at cloud providers, if PVs stick
around for long, the costs might increase significantly.
- To allow other external Stores, remove the `FamilyByteSlicer` interface
and give access directly to `metric.Family`.
- Move functions present in `pkg/metric/generator.go` to a dedicated package
`generator` in `pkg/metric_generator/generator.go`.
Signed-off-by: cedric lamoriniere <cedric.lamoriniere@datadoghq.com>
Since the removal of collector, this introduces both the concept of the
store and the resources instead of collectors that the user passes in.
The user facing logs and flags were not changed as that would be a
regression.
Lili Cosic
Duologic
Jimmy K Seto
Quentin Bisson
Povilas Versockas
cedric lamoriniere
Tariq Ibrahim
Andrey Sidorov