Add osci yaml

Add project templates and variables to osci.yaml
Add rename script to change built charm name to
charm_build_name defined in osci.yaml

Change-Id: I737badefa19fd8d65def0ab79cadaa63d7d93b5a

osci.yaml

@@ -0,0 +1,12 @@
+- project:
+    templates:
+      - charm-unit-jobs-py38
+      - charm-unit-jobs-py310
+      - charm-publish-jobs
+    vars:
+      needs_charm_build: true
+      charm_build_name: ovn-relay-k8s
+      build_type: charmcraft
+      publish_charm: true
+      charmcraft_channel: 2.0/stable
+      publish_channel: latest/edge

rename.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+charm=$(grep "charm_build_name" osci.yaml | awk '{print $2}')
+echo "renaming ${charm}_*.charm to ${charm}.charm"
+echo -n "pwd: "
+pwd
+ls -al
+echo "Removing bad downloaded charm maybe?"
+if [[ -e "${charm}.charm" ]];
+then
+    rm "${charm}.charm"
+fi
+echo "Renaming charm here."
+mv ${charm}_*.charm ${charm}.charm

src/charm.py

@@ -25,7 +25,7 @@ develop a new k8s charm using the Operator Framework:
 """
 
 import logging
-from typing import List
+from typing import List, Mapping
 
 from ops.framework import StoredState
 from ops.main import main
@@ -76,6 +76,15 @@ class OVNRelayOperatorCharm(ovn_charm.OSBaseOVNOperatorCharm):
             ovn_ctxts.OVNDBConfigContext(self, "ovs_db"))
         return contexts
 
+    @property
+    def databases(self) -> Mapping[str, str]:
+        """Databases needed to support this charm.
+
+        Return empty dict as no mysql databases are
+        required.
+        """
+        return {}
+
 
 class OVNRelayXenaOperatorCharm(OVNRelayOperatorCharm):
 

tox.ini

@@ -29,6 +29,7 @@ allowlist_externals =
   git
   charmcraft
   fetch-libs.sh
+  rename.sh
 deps =
   -r{toxinidir}/test-requirements.txt
 
@@ -37,6 +38,7 @@ basepython = python3
 deps =
 commands =
   charmcraft -v pack
+  {toxinidir}/rename.sh
 
 [testenv:fetch]
 basepython = python3