Merge pull request #30080 from jszczepkowski/ps-rollback

Automatic merge from submit-queue

Reverted conversion of influx-db to PetSet.

```release-note
Reverted conversion of influx-db to Pet Set, it is now a Replication Controller.
```

Reverted conversion of influx-db to PetSet, it is now a Replication Controller and Persistent Volumes are no longer used.

cluster/addons/cluster-monitoring/influxdb/influxdb-claim.yaml

@@ -1,15 +0,0 @@
-kind: PersistentVolumeClaim
-apiVersion: v1
-metadata:
-  name: influxdb-claim
-  namespace: kube-system
-  labels:
-    kubernetes.io/cluster-service: "true"
-spec:
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: 10Gi
-  volumeName: influxdb-pv
-

cluster/addons/cluster-monitoring/influxdb/influxdb-grafana-controller.yaml

@@ -1,5 +1,5 @@
-apiVersion: apps/v1alpha1
-kind: PetSet
+apiVersion: v1
+kind: ReplicationController
 metadata:
   name: monitoring-influxdb-grafana-v3
   namespace: kube-system
@@ -9,6 +9,9 @@ metadata:
     kubernetes.io/cluster-service: "true"
 spec: 
   replicas: 1
+  selector: 
+    k8s-app: influxGrafana
+    version: v3
   template: 
     metadata: 
       labels: 
@@ -65,8 +68,7 @@ spec:
             mountPath: /var
       volumes:
       - name: influxdb-persistent-storage
-        persistentVolumeClaim:
-          claimName: influxdb-claim
+        emptyDir: {}
       - name: grafana-persistent-storage
         emptyDir: {}
-  serviceName: monitoring-influxdb
+

cluster/addons/cluster-monitoring/influxdb/influxdb-pv.yaml

@@ -1,19 +0,0 @@
-{% set pd_prefix = pillar.get('master_name', '') -%}
-{% set pd_name = pd_prefix + '-influxdb-pd' -%}
-
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: influxdb-pv
-  labels:
-    kubernetes.io/cluster-service: "true"
-spec:
-  capacity:
-    storage: 10Gi
-  accessModes:
-    - ReadWriteOnce
-    - ReadOnlyMany
-  gcePersistentDisk:
-    pdName: {{ pd_name }}
-    fsType: ext4
-  persistentVolumeReclaimPolicy: Delete

cluster/gce/coreos/kube-manifests/addons/cluster-monitoring/influxdb/influxdb-grafana-controller.yaml

@@ -0,0 +1,74 @@
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: monitoring-influxdb-grafana-v3
+  namespace: kube-system
+  labels: 
+    k8s-app: influxGrafana
+    version: v3
+    kubernetes.io/cluster-service: "true"
+spec: 
+  replicas: 1
+  selector: 
+    k8s-app: influxGrafana
+    version: v3
+  template: 
+    metadata: 
+      labels: 
+        k8s-app: influxGrafana
+        version: v3
+        kubernetes.io/cluster-service: "true"
+    spec: 
+      containers: 
+        - image: gcr.io/google_containers/heapster_influxdb:v0.5
+          name: influxdb
+          resources:
+            # keep request = limit to keep this container in guaranteed class
+            limits:
+              cpu: 100m
+              memory: 500Mi
+            requests:
+              cpu: 100m
+              memory: 500Mi
+          ports: 
+            - containerPort: 8083
+            - containerPort: 8086
+          volumeMounts:
+          - name: influxdb-persistent-storage
+            mountPath: /data
+        - image: gcr.io/google_containers/heapster_grafana:v2.6.0-2
+          name: grafana
+          env:
+          resources:
+            # keep request = limit to keep this container in guaranteed class
+            limits:
+              cpu: 100m
+              memory: 100Mi
+            requests:
+              cpu: 100m
+              memory: 100Mi
+          env:
+            # This variable is required to setup templates in Grafana.
+            - name: INFLUXDB_SERVICE_URL
+              value: http://monitoring-influxdb:8086
+              # The following env variables are required to make Grafana accessible via
+              # the kubernetes api-server proxy. On production clusters, we recommend
+              # removing these env variables, setup auth for grafana, and expose the grafana
+              # service using a LoadBalancer or a public IP.
+            - name: GF_AUTH_BASIC_ENABLED
+              value: "false"
+            - name: GF_AUTH_ANONYMOUS_ENABLED
+              value: "true"
+            - name: GF_AUTH_ANONYMOUS_ORG_ROLE
+              value: Admin
+            - name: GF_SERVER_ROOT_URL
+              value: /api/v1/proxy/namespaces/kube-system/services/monitoring-grafana/
+          volumeMounts:
+          - name: grafana-persistent-storage
+            mountPath: /var
+      volumes:
+      - name: influxdb-persistent-storage
+        emptyDir: {}
+      - name: grafana-persistent-storage
+        emptyDir: {}
+

cluster/gce/gci/configure-helper.sh

@@ -865,12 +865,6 @@ function start-kube-addons {
     sed -i -e "s@{{ *nanny_memory *}}@${nanny_memory}@g" "${controller_yaml}"
     sed -i -e "s@{{ *metrics_cpu_per_node *}}@${metrics_cpu_per_node}@g" "${controller_yaml}"
   fi
-  if [[ "${ENABLE_CLUSTER_MONITORING:-}" == "influxdb" ]]; then
-    pv_yaml="${dst_dir}/${file_dir}/influxdb-pv.yaml"
-    pd_name="${INSTANCE_PREFIX}-influxdb-pd"
-    remove-salt-config-comments "${pv_yaml}"
-    sed -i -e "s@{{ *pd_name *}}@${pd_name}@g" "${pv_yaml}"
-  fi
   if [[ "${ENABLE_CLUSTER_DNS:-}" == "true" ]]; then
     setup-addon-manifests "addons" "dns"
     local -r dns_rc_file="${dst_dir}/dns/skydns-rc.yaml"

cluster/gce/util.sh

@@ -712,14 +712,6 @@ function create-master() {
       --size "${CLUSTER_REGISTRY_DISK_SIZE}" &
   fi
 
-  # Create disk for influxdb if enabled
-  if [[ "${ENABLE_CLUSTER_MONITORING:-}" == "influxdb" ]]; then
-    gcloud compute disks create "${INSTANCE_PREFIX}-influxdb-pd" \
-      --project "${PROJECT}" \
-      --zone "${ZONE}" \
-      --size "10GiB" &
-  fi
-
   # Generate a bearer token for this cluster. We push this separately
   # from the other cluster variables so that the client (this
   # computer) can forget it later. This should disappear with
@@ -1267,11 +1259,6 @@ function check-resources {
     return 1
   fi
 
-  if gcloud compute disks describe --project "${PROJECT}" "${INSTANCE_PREFIX}-influxdb-pd" --zone "${ZONE}" &>/dev/null; then
-    KUBE_RESOURCE_FOUND="Persistent disk ${INSTANCE_PREFIX}-influxdb-pd"
-    return 1
-  fi
-
   # Find out what minions are running.
   local -a minions
   minions=( $(gcloud compute instances list \