Add grafana config,dashboards,provisioning

grafana/provisioning/dashboards/default.yaml

@@ -0,0 +1,25 @@
+
+apiVersion: 1
+
+providers:
+  # <string> an unique provider name. Required
+  - name: 'PostgSail'
+    # <int> Org id. Default to 1
+    orgId: 1
+    # <string> name of the dashboard folder.
+    folder: 'PostgSail'
+    # <string> folder UID. will be automatically generated if not specified
+    #folderUid: ''
+    # <string> provider type. Default to 'file'
+    type: file
+    # <bool> disable dashboard deletion
+    disableDeletion: false
+    # <int> how often Grafana will scan for changed dashboards
+    updateIntervalSeconds: 10
+    # <bool> allow updating provisioned dashboards from the UI
+    allowUiUpdates: true
+    options:
+      # <string, required> path to dashboard files on disk. Required when using the 'file' type
+      path: /etc/grafana/dashboards/
+      # <bool> use folder names from filesystem to create folders in Grafana
+      foldersFromFilesStructure: true

grafana/provisioning/datasources/timescale.yaml

@@ -0,0 +1,18 @@
+apiVersion: 1
+
+datasources:
+  - name: PostgreSQL
+    isDefault: true
+    type: postgres
+    url: 172.30.0.1:5432
+    database: signalk
+    user: username
+    secureJsonData:
+      password: 'password'
+    jsonData:
+      sslmode: 'disable' # disable/require/verify-ca/verify-full
+      maxOpenConns: 10 # Grafana v5.4+
+      maxIdleConns: 2 # Grafana v5.4+
+      connMaxLifetime: 14400 # Grafana v5.4+
+      postgresVersion: 1400 # 903=9.3, 904=9.4, 905=9.5, 906=9.6, 1000=10
+      timescaledb: true