Move prometheus + grafana to metrics. Edit readme

metrics/grafana/provisioning/dashboards/dashboard.yml

@@ -0,0 +1,25 @@
+# config file version
+apiVersion: 1
+
+providers:
+# <string> an unique provider name
+- name: My Dashboard
+  # <int> org id. will default to orgId 1 if not specified
+  org_id: 1
+  # <string, required> name of the dashboard folder. Required
+  folder: ''
+  # <string, required> provider type. Required
+  type: 'file'
+  # <bool> disable dashboard deletion
+  disableDeletion: false
+  # <bool> enable dashboard editing
+  editable: true
+  # <int> how often Grafana will scan for changed dashboards
+  updateIntervalSeconds: 5
+  # <bool> allow updating provisioned dashboards from the UI
+  allowUiUpdates: true
+  options:
+    # <string, required> path to dashboard files on disk. Required
+    path: /etc/grafana/dashboards
+    # <bool> use folder names from filesystem to create folders in Grafana
+    foldersFromFilesStructure: true