Guarantee executable OCF mysql_monitor file

Closes-Bug: #1890470
Change-Id: Iee0aa8b1ae0f364d01d30a61381af222a264b090

hooks/percona_hooks.py

@@ -205,6 +205,7 @@ def install():
     apt_update(fatal=True)
 
     install_percona_xtradb_cluster()
+    install_mysql_ocf()
 
 
 def render_config(hosts=None):
@@ -935,6 +936,7 @@ def shared_db_changed(relation_id=None, unit=None):
 
 @hooks.hook('ha-relation-joined')
 def ha_relation_joined(relation_id=None):
+    install_mysql_ocf()
     sstpsswd = sst_password()
     _relation_data = {
         'resources': {
@@ -969,6 +971,7 @@ def ha_relation_joined(relation_id=None):
 
 @hooks.hook('ha-relation-changed')
 def ha_relation_changed():
+    install_mysql_ocf()
     update_client_db_relations()
 
 

hooks/percona_utils.py

@@ -442,6 +442,8 @@ def install_mysql_ocf():
         else:
             log("'{}' already exists, skipping"
                 .format(dest_file), level='INFO')
+        # Always set to executable
+        os.chmod(dest_file, 0o755)
 
 
 def get_wsrep_value(key):

unit_tests/test_percona_hooks.py

@@ -51,7 +51,8 @@ TO_PATCH = ['log', 'config',
             'peer_retrieve_by_prefix',
             'client_node_is_ready',
             'relation_set',
-            'relation_get']
+            'relation_get',
+            'install_mysql_ocf']
 
 
 class TestSharedDBRelation(CharmTestCase):