Refactor ceph_metrics as a library

Author: UtkarshBhatthere

.github/workflows/build-and-test.yml

@@ -83,7 +83,9 @@ jobs:
         run: tox -c ${{ matrix.part }} -e pep8
 
       - name: Run unit tests
-        run: tox -c ${{ matrix.part }} -e py3
+        run: |
+          ./charm_utils.sh copy_libs ${{ matrix.part }}
+          tox -c ${{ matrix.part }} -e py3
 
       - name: Setup LXD
         uses: canonical/setup-lxd@v0.1.1

.gitignore

@@ -10,3 +10,4 @@ bin
 func-results.json
 .stestr
 __pycache__
+*/build/*

ceph-mon/lib/charms/observability_libs/v0/juju_topology.py

@@ -6,7 +6,9 @@ dnspython
 netaddr
 netifaces
 pyyaml
-git+https://github.com/openstack/charms.ceph#egg=charms_ceph
+# the build process expects charms.ceph and charms.ceph_metrics be at lib/ inside the charm directory.
+./lib/charms.ceph_metrics
+./lib/charms.ceph
 git+https://opendev.org/openstack/charm-ops-openstack#egg=ops_openstack
 git+https://opendev.org/openstack/charm-ops-interface-tls-certificates#egg=interface_tls_certificates
 git+https://github.com/openstack-charmers/ops-interface-ceph-iscsi-admin-access#egg=interface_ceph_iscsi_admin_access

ceph-mon/requirements.txt

@@ -21,7 +21,7 @@
 )
 import ceph_hooks as hooks
 import ceph_client
-import ceph_metrics
+from ceph_metrics import ceph_metrics
 
 import ops_actions