Add ops_openstack dependency.

charmcraft.yaml

@@ -2,9 +2,21 @@ type: charm
 
 parts:
   charm:
+    after: [update-certificates]
+    charm-python-packages:
+      # See https://github.com/canonical/charmcraft/issues/551
+      - setuptools
     build-packages:
       - git
 
+  update-certificates:
+    plugin: nil
+    # See https://github.com/canonical/charmcraft/issues/658
+    override-build: |
+      apt update -qqq
+      apt install -qy ca-certificates
+      update-ca-certificates
+
 bases:
   - build-on:
       - name: ubuntu

requirements.txt

@@ -1 +1,2 @@
 ops>=1.5.0
+git+https://opendev.org/openstack/charm-ops-openstack@master#egg=ops_openstack