Set price expander in Cluster Autoscaler for gce

cluster/common.sh

@@ -872,6 +872,7 @@ EOF
       cat >>$file <<EOF
 ENABLE_CLUSTER_AUTOSCALER: $(yaml-quote ${ENABLE_CLUSTER_AUTOSCALER})
 AUTOSCALER_MIG_CONFIG: $(yaml-quote ${AUTOSCALER_MIG_CONFIG})
+AUTOSCALER_EXPANDER_CONFIG: $(yaml-quote ${AUTOSCALER_EXPANDER_CONFIG})
 EOF
   fi
 

cluster/gce/config-default.sh

@@ -196,6 +196,7 @@ if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then
   AUTOSCALER_MIN_NODES="${KUBE_AUTOSCALER_MIN_NODES:-}"
   AUTOSCALER_MAX_NODES="${KUBE_AUTOSCALER_MAX_NODES:-}"
   AUTOSCALER_ENABLE_SCALE_DOWN="${KUBE_AUTOSCALER_ENABLE_SCALE_DOWN:-true}"
+  AUTOSCALER_EXPANDER_CONFIG="${KUBE_AUTOSCALER_EXPANDER_CONFIG:---expander=price}"
 fi
 
 # Optional: Enable Rescheduler

cluster/gce/config-test.sh

@@ -229,6 +229,7 @@ if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then
   AUTOSCALER_MIN_NODES="${KUBE_AUTOSCALER_MIN_NODES:-}"
   AUTOSCALER_MAX_NODES="${KUBE_AUTOSCALER_MAX_NODES:-}"
   AUTOSCALER_ENABLE_SCALE_DOWN="${KUBE_AUTOSCALER_ENABLE_SCALE_DOWN:-false}"
+  AUTOSCALER_EXPANDER_CONFIG="${KUBE_AUTOSCALER_EXPANDER_CONFIG:---expander=price}"
 fi
 
 # Optional: Enable Rescheduler

cluster/gce/configure-vm.sh

@@ -581,6 +581,7 @@ EOF
       cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
 enable_cluster_autoscaler: '$(echo "${ENABLE_CLUSTER_AUTOSCALER}" | sed -e "s/'/''/g")'
 autoscaler_mig_config: '$(echo "${AUTOSCALER_MIG_CONFIG}" | sed -e "s/'/''/g")'
+autoscaler_expander_config: '$(echo "${AUTOSCALER_EXPANDER_CONFIG}" | sed -e "s/'/''/g")'
 EOF
     fi
     if [ -n "${SCHEDULING_ALGORITHM_PROVIDER:-}" ]; then

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

@@ -1134,7 +1134,7 @@ function start-cluster-autoscaler {
     local -r src_file="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
     remove-salt-config-comments "${src_file}"
 
-    local params="${AUTOSCALER_MIG_CONFIG} ${CLOUD_CONFIG_OPT}"
+    local params="${AUTOSCALER_MIG_CONFIG} ${CLOUD_CONFIG_OPT} ${AUTOSCALER_EXPANDER_CONFIG:-}"
     sed -i -e "s@{{params}}@${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}"

cluster/gce/gci/configure-helper.sh

@@ -1560,7 +1560,7 @@ function start-cluster-autoscaler {
     local -r src_file="${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
     remove-salt-config-comments "${src_file}"
 
-    local params="${AUTOSCALER_MIG_CONFIG} ${CLOUD_CONFIG_OPT}"
+    local params="${AUTOSCALER_MIG_CONFIG} ${CLOUD_CONFIG_OPT} ${AUTOSCALER_EXPANDER_CONFIG:-}"
     sed -i -e "s@{{params}}@${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}"

cluster/gce/util.sh

@@ -1298,7 +1298,7 @@ function create-autoscaler-config() {
   # Create autoscaler for nodes configuration if requested
   if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then
     create-cluster-autoscaler-mig-config
-    echo "Using autoscaler config: ${AUTOSCALER_MIG_CONFIG}"
+    echo "Using autoscaler config: ${AUTOSCALER_MIG_CONFIG} ${AUTOSCALER_EXPANDER_CONFIG}"
   fi
 }
 

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

@@ -7,7 +7,7 @@
   {% set cloud_config_mount = "{\"name\": \"cloudconfigmount\",\"mountPath\": \"" + grains.cloud_config + "\", \"readOnly\": true}," -%}
   {% set cloud_config_volume = "{\"name\": \"cloudconfigmount\",\"hostPath\": {\"path\": \"" + grains.cloud_config + "\"}}," -%}
 {% endif -%}
-{% set params = pillar['autoscaler_mig_config'] + " " + cloud_config -%}
+{% set params = pillar['autoscaler_mig_config'] + " " + cloud_config + " " + pillar.get('autoscaler_expander_config', '') -%}
 
 {
     "kind": "Pod",