Disable initializers by default

cluster/centos/config-default.sh

@@ -124,7 +124,7 @@ export FLANNEL_NET=${FLANNEL_NET:-"172.16.0.0/16"}
 # modification is overwritten.
 # If we included ResourceQuota, we should keep it at the end of the list to
 # prevent incrementing quota usage prematurely.
-export ADMISSION_CONTROL=${ADMISSION_CONTROL:-"Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeClaimResize,DefaultTolerationSeconds,Priority,StorageObjectInUseProtection,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota"}
+export ADMISSION_CONTROL=${ADMISSION_CONTROL:-"NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeClaimResize,DefaultTolerationSeconds,Priority,StorageObjectInUseProtection,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota"}
 
 # Extra options to set on the Docker command line.
 # This is useful for setting --insecure-registry for local registries.

cluster/gce/config-default.sh

@@ -338,7 +338,7 @@ if [[ -n "${GCE_GLBC_IMAGE:-}" ]]; then
 fi
 
 # Admission Controllers to invoke prior to persisting objects in cluster
-ADMISSION_CONTROL=Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,PersistentVolumeClaimResize,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection
+ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,PersistentVolumeClaimResize,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection
 
 if [[ "${ENABLE_POD_SECURITY_POLICY:-}" == "true" ]]; then
   ADMISSION_CONTROL="${ADMISSION_CONTROL},PodSecurityPolicy"

cluster/gce/config-test.sh

@@ -345,7 +345,7 @@ if [[ -n "${GCE_GLBC_IMAGE:-}" ]]; then
 fi
 
 if [[ -z "${KUBE_ADMISSION_CONTROL:-}" ]]; then
-  ADMISSION_CONTROL="Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,PodPreset,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection"
+  ADMISSION_CONTROL="NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,PodPreset,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection"
   if [[ "${ENABLE_POD_SECURITY_POLICY:-}" == "true" ]]; then
     ADMISSION_CONTROL="${ADMISSION_CONTROL},PodSecurityPolicy"
   fi

cluster/juju/layers/kubernetes-master/reactive/kubernetes_master.py

@@ -1248,7 +1248,6 @@ def configure_apiserver(etcd_connection_string):
     api_opts['etcd-servers'] = etcd_connection_string
 
     admission_control_pre_1_9 = [
-        'Initializers',
         'NamespaceLifecycle',
         'LimitRanger',
         'ServiceAccount',
@@ -1278,9 +1277,6 @@ def configure_apiserver(etcd_connection_string):
     if kube_version < (1, 6):
         hookenv.log('Removing DefaultTolerationSeconds from admission-control')
         admission_control_pre_1_9.remove('DefaultTolerationSeconds')
-    if kube_version < (1, 7):
-        hookenv.log('Removing Initializers from admission-control')
-        admission_control_pre_1_9.remove('Initializers')
     if kube_version < (1, 9):
         api_opts['admission-control'] = ','.join(admission_control_pre_1_9)
     else:

cluster/kubemark/gce/config-default.sh

@@ -89,7 +89,7 @@ TEST_CLUSTER_API_CONTENT_TYPE="${TEST_CLUSTER_API_CONTENT_TYPE:-}"
 
 KUBEMARK_MASTER_COMPONENTS_QPS_LIMITS="${KUBEMARK_MASTER_COMPONENTS_QPS_LIMITS:-}"
 
-CUSTOM_ADMISSION_PLUGINS="${CUSTOM_ADMISSION_PLUGINS:-Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota}"
+CUSTOM_ADMISSION_PLUGINS="${CUSTOM_ADMISSION_PLUGINS:-NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota}"
 
 # Master components' test arguments.
 APISERVER_TEST_ARGS="${KUBEMARK_APISERVER_TEST_ARGS:-} --vmodule=httplog=3 --runtime-config=extensions/v1beta1,scheduling.k8s.io/v1alpha1 ${API_SERVER_TEST_LOG_LEVEL} ${TEST_CLUSTER_MAX_REQUESTS_INFLIGHT} ${TEST_CLUSTER_DELETE_COLLECTION_WORKERS}"

hack/local-up-cluster.sh

@@ -481,7 +481,7 @@ function start_apiserver {
     # Admission Controllers to invoke prior to persisting objects in cluster
     #
     # The order defined here dose not matter.
-    ENABLE_ADMISSION_PLUGINS=Initializers,LimitRanger,ServiceAccount${security_admission},DefaultStorageClass,DefaultTolerationSeconds,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota,StorageObjectInUseProtection
+    ENABLE_ADMISSION_PLUGINS=LimitRanger,ServiceAccount${security_admission},DefaultStorageClass,DefaultTolerationSeconds,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota,StorageObjectInUseProtection
 
     audit_arg=""
     APISERVER_BASIC_AUDIT_LOG=""

hack/make-rules/test-cmd.sh

@@ -34,7 +34,7 @@ function run_kube_apiserver() {
   kube::log::status "Starting kube-apiserver"
 
   # Admission Controllers to invoke prior to persisting objects in cluster
-  ENABLE_ADMISSION_PLUGINS="Initializers,LimitRanger,ResourceQuota"
+  ENABLE_ADMISSION_PLUGINS="LimitRanger,ResourceQuota"
   DISABLE_ADMISSION_PLUGINS="ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,DefaultTolerationSeconds,MutatingAdmissionWebhook,ValidatingAdmissionWebhook"
 
   # Include RBAC (to exercise bootstrapping), and AlwaysAllow to allow all actions

test/fixtures/doc-yaml/admin/high-availability/kube-apiserver.yaml

@@ -11,7 +11,7 @@ spec:
     - /bin/sh
     - -c
     - /usr/local/bin/kube-apiserver --address=127.0.0.1 --etcd-servers=http://127.0.0.1:4001
-      --cloud-provider=gce   --admission-control=Initializers,NamespaceLifecycle,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota
+      --cloud-provider=gce   --admission-control=NamespaceLifecycle,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota
       --service-cluster-ip-range=10.0.0.0/16 --client-ca-file=/srv/kubernetes/ca.crt
       --basic-auth-file=/srv/kubernetes/basic_auth.csv --cluster-name=e2e-test-bburns
       --tls-cert-file=/srv/kubernetes/server.cert --tls-private-key-file=/srv/kubernetes/server.key