GPII-2830: make node_exporter export metrics for EBS volumes.

gpii-ops · Feb 16, 2018 · 067e8a4 · 067e8a4
1 parent dee9363
commit 067e8a4
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Showing 2 changed files with 11 additions and 13 deletions.
diff --git a/modules/deploy/17-prometheus-k8s-node-exporter-daemonset.yml b/modules/deploy/17-prometheus-k8s-node-exporter-daemonset.yml
@@ -14,9 +14,6 @@ spec:
       hostPID: true
       containers:
       - image: quay.io/prometheus/node-exporter:v0.15.0
-        args:
-        - "--path.procfs=/host/proc"
-        - "--path.sysfs=/host/sys"
         name: node-exporter
         ports:
         - containerPort: 9100
@@ -29,20 +26,19 @@ spec:
           limits:
             memory: 50Mi
             cpu: 200m
+        securityContext:
+          runAsUser: 0
         volumeMounts:
-        - name: proc
-          readOnly:  true
-          mountPath: /host/proc
-        - name: sys
+        - name: rootfs
           readOnly: true
-          mountPath: /host/sys
+          mountPropagation: HostToContainer  # Alpha in k8s 1.8; requires kubelet '--feature-gates MountPropagation=true'
+          mountPath: /host/rootfs
       tolerations:
         - effect: NoSchedule
           operator: Exists
       volumes:
-      - name: proc
+      - name: rootfs
         hostPath:
-          path: /proc
-      - name: sys
-        hostPath:
-          path: /sys
+          path: /
+  updateStrategy:
+    type: RollingUpdate
diff --git a/modules/k8s/cluster-custom-settings.yml.erb b/modules/k8s/cluster-custom-settings.yml.erb
@@ -5,3 +5,5 @@ spec:
     terminatedPodGCThreshold: 100  # Wild, untested guess
   kubelet:
     anonymousAuth: false
+    featureGates:
+      MountPropagation: "true"