The ceilometer compute agent uses the default polling.yaml
from the installed packages without the ability to configure its contents.
This change adds two configuration options: 'polling-interval' and
'enable-all-pollsters', borrowing from the implementation in
charm-ceilometer. We start off with a limited set of meters as before
and if these are not enough, the user can set 'enable-all-pollsters' to
'true' to collect all available 'Pollster' metrics as listed in the
documentation [1].
Verification:
I tested this change on a cluster built from the OpenStack base bundle
and the ceilometer and gnocchi charms. I confirmed that extra metrics
that originate from the Compute Agent pollster (e.g. disk.device.read.latency)
are available in gnocchi after setting 'enable-all-pollsters' to true.
[1] https://docs.openstack.org/ceilometer/latest/admin/telemetry-measurements.html
Closes-Bug: #1914442
Change-Id: I21c9a93e7dd91bced9365e44f3e6a5315976c3bb
9fd4ea0a39