Use the logging agent's node name as the metadata agent URL.

cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml

@@ -38,13 +38,13 @@ spec:
         - name: config-volume
           mountPath: /etc/google-fluentd/config.d
         env:
-        - name: STACKDRIVER_METADATA_AGENT_URL
-          value: {{ stackdriver_metadata_agent_url }}
         - name: NODE_NAME
           valueFrom:
             fieldRef:
               apiVersion: v1
               fieldPath: spec.nodeName
+        - name: STACKDRIVER_METADATA_AGENT_URL
+          value: http://$(NODE_NAME):8799
         # Liveness probe is aimed to help in situarions where fluentd
         # silently hangs for no apparent reasons until manual restart.
         # The idea of this probe is that if fluentd is not queueing or

cluster/gce/config-default.sh

@@ -399,7 +399,7 @@ HEAPSTER_GCP_BASE_CPU="${HEAPSTER_GCP_BASE_CPU:-80m}"
 HEAPSTER_GCP_CPU_PER_NODE="${HEAPSTER_GCP_CPU_PER_NODE:-0.5}"
 
 # Adding to PROVIDER_VARS, since this is GCP-specific.
-PROVIDER_VARS="${PROVIDER_VARS:-} FLUENTD_GCP_VERSION FLUENTD_GCP_MEMORY_LIMIT FLUENTD_GCP_CPU_REQUEST FLUENTD_GCP_MEMORY_REQUEST HEAPSTER_GCP_BASE_MEMORY HEAPSTER_GCP_MEMORY_PER_NODE HEAPSTER_GCP_BASE_CPU HEAPSTER_GCP_CPU_PER_NODE CUSTOM_KUBE_DASHBOARD_BANNER LOGGING_STACKDRIVER_RESOURCE_TYPES STACKDRIVER_METADATA_AGENT_URL"
+PROVIDER_VARS="${PROVIDER_VARS:-} FLUENTD_GCP_VERSION FLUENTD_GCP_MEMORY_LIMIT FLUENTD_GCP_CPU_REQUEST FLUENTD_GCP_MEMORY_REQUEST HEAPSTER_GCP_BASE_MEMORY HEAPSTER_GCP_MEMORY_PER_NODE HEAPSTER_GCP_BASE_CPU HEAPSTER_GCP_CPU_PER_NODE CUSTOM_KUBE_DASHBOARD_BANNER LOGGING_STACKDRIVER_RESOURCE_TYPES"
 
 # Fluentd configuration for node-journal
 ENABLE_NODE_JOURNAL="${ENABLE_NODE_JOURNAL:-false}"

cluster/gce/config-test.sh

@@ -415,7 +415,7 @@ HEAPSTER_GCP_BASE_CPU="${HEAPSTER_GCP_BASE_CPU:-80m}"
 HEAPSTER_GCP_CPU_PER_NODE="${HEAPSTER_GCP_CPU_PER_NODE:-0.5}"
 
 # Adding to PROVIDER_VARS, since this is GCP-specific.
-PROVIDER_VARS="${PROVIDER_VARS:-} FLUENTD_GCP_VERSION FLUENTD_GCP_MEMORY_LIMIT FLUENTD_GCP_CPU_REQUEST FLUENTD_GCP_MEMORY_REQUEST HEAPSTER_GCP_BASE_MEMORY HEAPSTER_GCP_MEMORY_PER_NODE HEAPSTER_GCP_BASE_CPU HEAPSTER_GCP_CPU_PER_NODE CUSTOM_KUBE_DASHBOARD_BANNER LOGGING_STACKDRIVER_RESOURCE_TYPES STACKDRIVER_METADATA_AGENT_URL"
+PROVIDER_VARS="${PROVIDER_VARS:-} FLUENTD_GCP_VERSION FLUENTD_GCP_MEMORY_LIMIT FLUENTD_GCP_CPU_REQUEST FLUENTD_GCP_MEMORY_REQUEST HEAPSTER_GCP_BASE_MEMORY HEAPSTER_GCP_MEMORY_PER_NODE HEAPSTER_GCP_BASE_CPU HEAPSTER_GCP_CPU_PER_NODE CUSTOM_KUBE_DASHBOARD_BANNER LOGGING_STACKDRIVER_RESOURCE_TYPES"
 
 # Fluentd configuration for node-journal
 ENABLE_NODE_JOURNAL="${ENABLE_NODE_JOURNAL:-false}"

cluster/gce/gci/configure-helper.sh

@@ -2161,12 +2161,6 @@ function setup-fluentd {
   sed -i -e "s@{{ fluentd_gcp_configmap_name }}@${fluentd_gcp_configmap_name}@g" "${fluentd_gcp_yaml}"
   fluentd_gcp_version="${FLUENTD_GCP_VERSION:-0.2-1.5.30-1-k8s}"
   sed -i -e "s@{{ fluentd_gcp_version }}@${fluentd_gcp_version}@g" "${fluentd_gcp_yaml}"
-  if [[ "${STACKDRIVER_METADATA_AGENT_URL:-}" != "" ]]; then
-    metadata_agent_url="${STACKDRIVER_METADATA_AGENT_URL}"
-  else
-    metadata_agent_url="http://${HOSTNAME}:8799"
-  fi
-  sed -i -e "s@{{ stackdriver_metadata_agent_url }}@${metadata_agent_url}@g" "${fluentd_gcp_yaml}"
   update-prometheus-to-sd-parameters ${fluentd_gcp_yaml}
   start-fluentd-resource-update ${fluentd_gcp_yaml}
   update-container-runtime ${fluentd_gcp_configmap_yaml}