89635f8da9
Allow the charm-openstack-hypervisor to be related to grafana-agent machine charm [1] via cos-agent interface. - Add cos-agent library. - Add cosl and pydantic to test requirements. - Add cos-agent interface and its basic implmentation. - Add libvirt exporter integration (related to PR [2]) - Add ovs exporter integration (related to PR [3]) - Add node exporter integration (grafana-agent built-in) [1] https://github.com/canonical/grafana-agent-k8s-operator/tree/main [2] https://github.com/canonical/snap-openstack-hypervisor/pull/2 [3] https://github.com/canonical/snap-openstack-hypervisor/pull/3 Change-Id: I1bc8367af2e1d2677a43cf67f15cae49c5455e7f