Enable anonymous Grafana login, add datasource

manifests/grafana/grafana-cm.yaml

@@ -7,3 +7,5 @@ data:
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   grafana-net-162-dashboard.json: |
     {"dashboard":{"__inputs":[{"name":"DS_PROMETHEUS","label":"Prometheus","description":"","type":"datasource","pluginId":"prometheus","pluginName":"Prometheus"}],"__requires":[{"type":"panel","id":"singlestat","name":"Singlestat","version":""},{"type":"panel","id":"graph","name":"Graph","version":""},{"type":"grafana","id":"grafana","name":"Grafana","version":"3.1.0"},{"type":"datasource","id":"prometheus","name":"Prometheus","version":"1.0.0"}],"id":null,"title":"Kubernetes cluster monitoring (via Prometheus)","tags":["kubernetes"],"style":"dark","timezone":"browser","editable":true,"hideControls":true,"sharedCrosshair":true,"rows":[{"collapse":false,"editable":true,"height":"250px","panels":[{"cacheTimeout":null,"colorBackground":false,"colorValue":false,"colors":["rgba(50, 172, 45, 0.97)","rgba(237, 129, 40, 0.89)","rgba(245, 54, 54, 0.9)"],"datasource":"${DS_PROMETHEUS}","editable":true,"error":false,"format":"percent","gauge":{"maxValue":100,"minValue":0,"show":true,"thresholdLabels":false,"thresholdMarkers":true},"id":4,"interval":null,"isNew":true,"links":[],"mappingType":1,"mappingTypes":[{"name":"value to text","value":1},{"name":"range to text","value":2}],"maxDataPoints":100,"nullPointMode":"connected","nullText":null,"postfix":"","postfixFontSize":"50%","prefix":"","prefixFontSize":"50%","rangeMaps":[{"from":"null","text":"N/A","to":"null"}],"span":4,"sparkline":{"fillColor":"rgba(31, 118, 189, 0.18)","full":false,"lineColor":"rgb(31, 120, 193)","show":false},"targets":[{"expr":"(sum(node_memory_MemTotal) - 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+  prometheus-datasource.json: |
+    {"name":"prometheus","type":"prometheus","url":"http://prometheus-k8s.monitoring.svc:9090","access":"proxy","basicAuth":false}

manifests/grafana/grafana-depl.yaml

@@ -12,6 +12,11 @@ spec:
       containers:
       - name: grafana
         image: grafana/grafana:3.1.1
+        env:
+        - name: GF_AUTH_BASIC_ENABLED
+          value: "true"
+        - name: GF_AUTH_ANONYMOUS_ENABLED
+          value: "true"
         volumeMounts:
         - name: grafana-storage
           mountPath: /var/grafana-storage