diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ef60e447e..ac5e63394 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -129,7 +129,7 @@ before_script:
       -e inventory_path=${PWD}/inventory/inventory.ini
       -e cloud_region=${CLOUD_REGION}
 
-coreos-calico:
+coreos-calico-sep:
   stage: deploy-gce-part1
   <<: *job
   <<: *gce
@@ -141,9 +141,9 @@ coreos-calico:
     CLUSTER_MODE: separated
     BOOTSTRAP_OS: coreos
   when: on_success
-  #only: [/^pr-.*$/]
+  only: [/^pr-.*$/]
 
-debian8-canal:
+debian8-canal-ha:
   stage: deploy-gce-part1
   <<: *job
   <<: *gce
@@ -154,7 +154,7 @@ debian8-canal:
     CLOUD_REGION: us-east1-b
     CLUSTER_MODE: ha
   when: manual
-  #only: [/^pr-.*$/]
+  only: ['master', /^pr-.*$/]
 
 rhel7-weave:
   stage: deploy-gce-part1
@@ -167,7 +167,7 @@ rhel7-weave:
     CLOUD_REGION: europe-west1-b
     CLUSTER_MODE: default
   when: manual
-  #only: [/^pr-.*$/]
+  only: ['master', /^pr-.*$/]
 
 centos7-flannel:
   stage: deploy-gce-part2
@@ -179,8 +179,8 @@ centos7-flannel:
     CLOUD_IMAGE: centos-7
     CLOUD_REGION: us-west1-a
     CLUSTER_MODE: default
-  when: manual
-  only: ['master']
+  when: on_success
+  only: [/^pr-.*$/]
 
 debian8-calico:
   stage: deploy-gce-part2
@@ -193,7 +193,7 @@ debian8-calico:
     CLOUD_REGION: us-central1-b
     CLUSTER_MODE: default
   when: manual
-  only: ['master']
+  only: ['master', /^pr-.*$/]
 
 coreos-canal:
   stage: deploy-gce-part2
@@ -207,9 +207,9 @@ coreos-canal:
     CLUSTER_MODE: default
     BOOTSTRAP_OS: coreos
   when: manual
-  only: ['master']
+  only: ['master', /^pr-.*$/]
 
-rhel7-canal:
+rhel7-canal-sep:
   stage: deploy-gce-special
   <<: *job
   <<: *gce
@@ -220,9 +220,9 @@ rhel7-canal:
     CLOUD_REGION: us-east1-b
     CLUSTER_MODE: separated
   when: manual
-  only: ['master']
+  only: ['master', /^pr-.*$/]
 
-ubuntu-weave:
+ubuntu-weave-sep:
   stage: deploy-gce-special
   <<: *job
   <<: *gce
@@ -232,10 +232,10 @@ ubuntu-weave:
     CLOUD_IMAGE: ubuntu-1604-xenial
     CLOUD_REGION: us-central1-b
     CLUSTER_MODE: separated
-  when: manual
-  only: ['master']
+  when: on_success
+  only: [/^pr-.*$/]
 
-centos7-calico:
+centos7-calico-ha:
   stage: deploy-gce-special
   <<: *job
   <<: *gce
@@ -246,7 +246,7 @@ centos7-calico:
     CLOUD_REGION: europe-west1-b
     CLUSTER_MODE: ha
   when: manual
-  only: ['master']
+  only: ['master', /^pr-.*$/]
 
 syntax-check:
   <<: *job
diff --git a/docs/test_cases.md b/docs/test_cases.md
index 11e4db6aa..8b6dbea21 100644
--- a/docs/test_cases.md
+++ b/docs/test_cases.md
@@ -43,11 +43,11 @@ GCE instances
 |             part1|            calico|     coreos-stable|        us-west1-b|         separated|        on_success|
 |             part1|             canal|debian-8-kubespray|        us-east1-b|                ha|            manual|
 |             part1|             weave|            rhel-7|    europe-west1-b|           default|            manual|
-|             part2|           flannel|          centos-7|        us-west1-a|           default|            manual|
+|             part2|           flannel|          centos-7|        us-west1-a|           default|        on_success|
 |             part2|            calico|debian-8-kubespray|     us-central1-b|           default|            manual|
 |             part2|             canal|     coreos-stable|        us-east1-b|           default|            manual|
 |           special|             canal|            rhel-7|        us-east1-b|         separated|            manual|
-|           special|             weave|ubuntu-1604-xenial|     us-central1-b|         separated|            manual|
+|           special|             weave|ubuntu-1604-xenial|     us-central1-b|         separated|        on_success|
 |           special|            calico|          centos-7|    europe-west1-b|                ha|            manual|
 
 The "Stage" means a build step of the build pipeline. The steps are ordered as `part1->part2->special`.