Added logging to file for cluster autoscaler

cluster/gce/gci/configure-helper.sh

@@ -615,6 +615,7 @@ function start-kube-scheduler {
   # Remove salt comments and replace variables with values.
   local -r src_file="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/kube-scheduler.manifest"
   remove-salt-config-comments "${src_file}"
+
   sed -i -e "s@{{params}}@${params}@g" "${src_file}"
   sed -i -e "s@{{pillar\['kube_docker_registry'\]}}@${DOCKER_REGISTRY}@g" "${src_file}"
   sed -i -e "s@{{pillar\['kube-scheduler_docker_tag'\]}}@${kube_scheduler_docker_tag}@g" "${src_file}"
@@ -624,19 +625,23 @@ function start-kube-scheduler {
 # Starts cluster autoscaler.
 function start-cluster-autoscaler {
   if [ "${ENABLE_NODE_AUTOSCALER:-}" = "true" ]; then
+    echo "Start kubernetes cluster autoscaler"
+    prepare-log-file /var/log/cluster-autoscaler.log
+
     # Remove salt comments and replace variables with values
-    src_file="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
+    local -r src_file="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
     remove-salt-config-comments "${src_file}"
 
-    local params=`sed 's/^/"/;s/ /","/g;s/$/",/' <<< "${AUTOSCALER_MIG_CONFIG}"`
+    local params="${AUTOSCALER_MIG_CONFIG}"
     if [[ -n "${PROJECT_ID:-}" && -n "${TOKEN_URL:-}" && -n "${TOKEN_BODY:-}" && -n "${NODE_NETWORK:-}" ]]; then
       params+=" --cloud-config=/etc/gce.conf"
     fi
 
-    sed -i -e "s@\"{{param}}\",@${params}@g" "${src_file}"
+    sed -i -e "s@{{params}}@${params}@g" "${src_file}"
     sed -i -e "s@{{cloud_config_mount}}@${CLOUD_CONFIG_MOUNT}@g" "${src_file}"
     sed -i -e "s@{{cloud_config_volume}}@${CLOUD_CONFIG_VOLUME}@g" "${src_file}"
     sed -i -e "s@{%.*%}@@g" "${src_file}"
+
     cp "${src_file}" /etc/kubernetes/manifests
   fi
 }

cluster/gce/trusty/configure-helper.sh

@@ -617,15 +617,18 @@ start_kube_scheduler() {
 # Starts k8s cluster autoscaler.
 start_cluster_autoscaler() {
   if [ "${ENABLE_NODE_AUTOSCALER:-}" = "true" ]; then
+    prepare-log-file /var/log/cluster-autoscaler.log
+
      # Remove salt comments and replace variables with values
     src_file="${kube_home}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
     remove_salt_config_comments "${src_file}"
-    params="$(echo "${AUTOSCALER_MIG_CONFIG}" | sed 's/^/"/;s/ /","/g;s/$/",/')"
+
+    params="${AUTOSCALER_MIG_CONFIG}"
     if [ -n "${PROJECT_ID:-}" ] && [ -n "${TOKEN_URL:-}" ] && [ -n "${TOKEN_BODY:-}" ] && [ -n "${NODE_NETWORK:-}" ]; then
       params="${params} --cloud-config=/etc/gce.conf"
     fi
 
-    sed -i -e "s@\"{{param}}\",@${params}@g" "${src_file}"
+    sed -i -e "s@{{params}}@${params}@g" "${src_file}"
     sed -i -e "s@{{cloud_config_mount}}@${CLOUD_CONFIG_MOUNT}@g" "${src_file}"
     sed -i -e "s@{{cloud_config_volume}}@${CLOUD_CONFIG_VOLUME}@g" "${src_file}"
     cp "${src_file}" /etc/kubernetes/manifests

cluster/log-dump.sh

@@ -77,7 +77,7 @@ function save-logs() {
 readonly master_ssh_supported_providers="gce aws kubemark"
 readonly node_ssh_supported_providers="gce gke aws"
 
-readonly master_logfiles="kube-apiserver kube-scheduler kube-controller-manager etcd glbc"
+readonly master_logfiles="kube-apiserver kube-scheduler kube-controller-manager etcd glbc cluster-autoscaler"
 readonly node_logfiles="kube-proxy"
 readonly aws_logfiles="cloud-init-output"
 readonly gce_logfiles="startupscript"

cluster/saltbase/salt/cluster-autoscaler/cluster-autoscaler.manifest

@@ -27,12 +27,9 @@
                 "name": "cluster-autoscaler",
                 "image": "gcr.io/google_containers/cluster-autoscaler:v0.1.1",
                 "command": [
-                    "./cluster-autoscaler",
+                    "/bin/sh",
-                    "--kubernetes=http://127.0.0.1:8080?inClusterConfig=f",
+                    "-c",
-                    {% for param in params.split(" ") %}
+                    "./cluster-autoscaler --kubernetes=http://127.0.0.1:8080?inClusterConfig=f -v=4 {{params}} 1>>/var/log/cluster-autoscaler.log 2>&1"
-                    "{{param}}",
-                    {% endfor %}
-                    "-v=4"
                 ],
                 "resources": {
                     "limits": {
@@ -50,6 +47,11 @@
                         "name": "ssl-certs",
                         "readOnly": true,
                         "mountPath": "/etc/ssl/certs"
+                    },
+                    {
+                        "name": "logfile",
+                        "mountPath": "/var/log/cluster-autoscaler.log",
+                        "readOnly": false
                     }
                 ],
                 "terminationMessagePath": "/dev/termination-log",
@@ -63,6 +65,12 @@
                 "hostPath": {
                     "path": "/etc/ssl/certs"
                 }
+            },
+            {
+                "name": "logfile",
+                "hostPath": {
+                    "path": "/var/log/cluster-autoscaler.log"
+                }
             }
         ],
         "restartPolicy": "Always"

cluster/saltbase/salt/cluster-autoscaler/init.sls

@@ -17,3 +17,9 @@
     - require:
       - service: docker
       - service: kubelet
+
+/var/log/cluster-autoscaler.log:
+  file.managed:
+    - user: root
+    - group: root
+    - mode: 644