Merge pull request #48425 from kawych/master

Automatic merge from submit-queue

Pass cluster name to Heapster with Stackdriver sink.

**What this PR does / why we need it**:
Passes cluster name as argument to Heapster when it's used with Stackdriver sink to allow setting resource label 'cluster_name' in exported metrics.

**Release note**:
```release-note
NONE
```

cluster/addons/cluster-monitoring/stackdriver/heapster-controller.yaml

@@ -55,7 +55,7 @@ spec:
           command:
             - /heapster
             - --source=kubernetes.summary_api:''
-            - --sink=stackdriver
+            - --sink=stackdriver:?cluster_name={{ cluster_name }}
               # TODO: add --disable_export when it's merged into Heapster release
           volumeMounts:
             - name: ssl-certs

cluster/common.sh

@@ -605,6 +605,7 @@ function build-kube-env {
 
   rm -f ${file}
   cat >$file <<EOF
+CLUSTER_NAME: $(yaml-quote ${CLUSTER_NAME})
 ENV_TIMESTAMP: $(yaml-quote $(date -u +%Y-%m-%dT%T%z))
 INSTANCE_PREFIX: $(yaml-quote ${INSTANCE_PREFIX})
 NODE_INSTANCE_PREFIX: $(yaml-quote ${NODE_INSTANCE_PREFIX})

cluster/gce/container-linux/configure-helper.sh

@@ -1187,6 +1187,8 @@ function setup-addon-manifests {
 }
 
 # Prepares the manifests of k8s addons, and starts the addon manager.
+# Vars assumed:
+#   CLUSTER_NAME
 function start-kube-addons {
   echo "Prepare kube-addons manifests and start kube addon manager"
   local -r src_dir="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty"
@@ -1224,6 +1226,7 @@ function start-kube-addons {
       controller_yaml="${controller_yaml}/heapster-controller.yaml"
     fi
     remove-salt-config-comments "${controller_yaml}"
+    sed -i -e "s@{{ cluster_name }}@${CLUSTER_NAME}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_metrics_memory *}}@${base_metrics_memory}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_metrics_cpu *}}@${base_metrics_cpu}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_eventer_memory *}}@${base_eventer_memory}@g" "${controller_yaml}"

cluster/gce/gci/configure-helper.sh

@@ -1621,6 +1621,8 @@ function setup-addon-manifests {
 }
 
 # Prepares the manifests of k8s addons, and starts the addon manager.
+# Vars assumed:
+#   CLUSTER_NAME
 function start-kube-addons {
   echo "Prepare kube-addons manifests and start kube addon manager"
   local -r src_dir="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty"
@@ -1658,6 +1660,7 @@ function start-kube-addons {
       controller_yaml="${controller_yaml}/heapster-controller.yaml"
     fi
     remove-salt-config-comments "${controller_yaml}"
+    sed -i -e "s@{{ cluster_name }}@${CLUSTER_NAME}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_metrics_memory *}}@${base_metrics_memory}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_metrics_cpu *}}@${base_metrics_cpu}@g" "${controller_yaml}"
     sed -i -e "s@{{ *base_eventer_memory *}}@${base_eventer_memory}@g" "${controller_yaml}"