Change coreos-alpha dns mode to host_resolvconf

.gitlab-ci.yml

@@ -294,8 +294,8 @@ before_script:
   CLOUD_REGION: us-east1-b
   CLUSTER_MODE: default
   BOOTSTRAP_OS: coreos
-  RESOLVCONF_MODE: host_resolvconf # This is required as long as the CoreOS stable channel uses docker < 1.12
   IDEMPOT_CHECK: "true"
+  RESOLVCONF_MODE: host_resolvconf # This is required as long as the CoreOS stable channel uses docker < 1.12
 
 .rhel7_canal_sep_variables: &rhel7_canal_sep_variables
 # stage: deploy-gce-special
@@ -327,6 +327,7 @@ before_script:
   CLOUD_REGION: us-west1-a
   CLUSTER_MODE: ha-scale
   BOOTSTRAP_OS: coreos
+  RESOLVCONF_MODE: host_resolvconf # This is required as long as the CoreOS stable channel uses docker < 1.12
 
 .ubuntu_rkt_sep_variables: &ubuntu_rkt_sep_variables
 # stage: deploy-gce-part1