Merge pull request #25357 from mwielgus/ca-salt

Automatic merge from submit-queue

Salt configuration for the new Cluster Autoscaler for GCE

Adds support for cloud autoscaler from contrib/cloud-autoscaler in kube-up.sh GCE script.

cc: @fgrzadkowski @piosz

cluster/common.sh

@@ -641,6 +641,12 @@ KUBERNETES_CONTAINER_RUNTIME: $(yaml-quote ${CONTAINER_RUNTIME:-docker})
 RKT_VERSION: $(yaml-quote ${RKT_VERSION:-})
 RKT_PATH: $(yaml-quote ${RKT_PATH:-})
 KUBERNETES_CONFIGURE_CBR0: $(yaml-quote ${KUBERNETES_CONFIGURE_CBR0:-true})
+EOF
+  fi
+  if [[ "${ENABLE_NODE_AUTOSCALER}" == "true" ]]; then
+      cat >>$file <<EOF
+ENABLE_NODE_AUTOSCALER: $(yaml-quote ${ENABLE_NODE_AUTOSCALER})
+AUTOSCALER_MIG_CONFIG: $(yaml-quote ${AUTOSCALER_MIG_CONFIG})
 EOF
   fi
 }