Merge ~seyeongkim/charm-grafana:fix-status-not-changing into charm-grafana:master

[Seyeong Kim]

once prometheus is down or something wrong when grafana checks it then the status is blocked,
it is not going back to active unless we change config then it triggers proper function.

e.g juju config grafana debug=True or False

this patch includes code that status_set to active when prometheus returns 200

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision 3b7ba549ed3e890dc0136e35eb7864f37b4d3951

diff --git a/src/reactive/grafana.py b/src/reactive/grafana.py
index 3ae8fa3..c822006 100644
--- a/src/reactive/grafana.py
+++ b/src/reactive/grafana.py
@@ -940,6 +940,10 @@ def generate_prometheus_dashboards(gf_adminpasswd, ds):
             "ERROR",
         )
         return
+    else:
+        hookenv.status_set(
+            "active", "Ready"
+        )
 
     current_dashboards = get_current_dashboards(config["port"], gf_adminpasswd)
     dash_to_uid = {