Enable promlinter and enhance exposed metrics. (#2550)

* Enable promlinter
* Rename archives metric and update dashboard, linter

Co-authored-by: shaunak_deshmukh <shaunak@infracloud.io>

charts/fission-all/dashboards/.lint

@@ -8,6 +8,4 @@ exclusions:
   target-instance-rule:
     reason: "Most panels dont need to be filtered by instance"
   panel-units-rule:
-    reason: "Some panels are using the 'number' unit which throws a linting error."
-  target-counter-agg-rule:
-    reason: "disabled for fission_archives_total. This metric should be not have total due to naming conventions as its a gauge, not a counter"
+    reason: "Some panels are using the 'number' unit which throws a linting error."

charts/fission-all/dashboards/fission-admin-dashboard.json

@@ -879,7 +879,7 @@
             "uid": "${datasource}"
           },
           "editorMode": "code",
-          "expr": "fission_archives_total",
+          "expr": "fission_archives",
           "legendFormat": "Namespace: {{namespace}} Pod: {{pod}}",
           "range": true,
           "refId": "A"
@@ -970,7 +970,7 @@
             "uid": "${datasource}"
           },
           "editorMode": "code",
-          "expr": "rate(fission_archives_total[$__rate_interval])",
+          "expr": "rate(fission_archives[$__rate_interval])",
           "legendFormat": "Namespace: {{namespace}} Pod: {{pod}}",
           "range": true,
           "refId": "A"