monitoring: системные дашборды + multi-server (file_sd), readme

stacks/monitoring/grafana/provisioning/dashboards/providers.yml

@@ -0,0 +1,12 @@
+apiVersion: 1
+providers:
+  - name: infra
+    orgId: 1
+    folder: Infra
+    type: file
+    disableDeletion: false
+    updateIntervalSeconds: 30
+    allowUiUpdates: true
+    options:
+      path: /etc/grafana/provisioning/dashboards
+      foldersFromFilesStructure: false

stacks/monitoring/grafana/provisioning/datasources/datasource.yml

@@ -1,6 +1,10 @@
 apiVersion: 1
+deleteDatasources:
+  - name: Prometheus
+    orgId: 1
 datasources:
   - name: Prometheus
+    uid: prometheus
     type: prometheus
     access: proxy
     url: http://prometheus:9090