Plumb CUSTOM_INGRESS_YAML into other setup scripts so that it can be set before a call to kubetest

Author: rramkumar1

cluster/gce/config-default.sh

@@ -352,6 +352,7 @@ fi
 if [[ -n "${GCE_GLBC_IMAGE:-}" ]]; then
   PROVIDER_VARS="${PROVIDER_VARS:-} GCE_GLBC_IMAGE"
 fi
+CUSTOM_INGRESS_YAML="${CUSTOM_INGRESS_YAML:-}"
 
 # Admission Controllers to invoke prior to persisting objects in cluster
 ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,PersistentVolumeClaimResize,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection

cluster/gce/config-test.sh

@@ -364,6 +364,7 @@ fi
 if [[ -n "${GCE_GLBC_IMAGE:-}" ]]; then
   PROVIDER_VARS="${PROVIDER_VARS:-} GCE_GLBC_IMAGE"
 fi
+CUSTOM_INGRESS_YAML="${CUSTOM_INGRESS_YAML:-}"
 
 if [[ -z "${KUBE_ADMISSION_CONTROL:-}" ]]; then
   ADMISSION_CONTROL="NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,PodPreset,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,Priority,StorageObjectInUseProtection,PersistentVolumeClaimResize"

cluster/gce/util.sh

@@ -1165,6 +1165,8 @@ ADVANCED_AUDIT_WEBHOOK_THROTTLE_BURST: $(yaml-quote ${ADVANCED_AUDIT_WEBHOOK_THR
 ADVANCED_AUDIT_WEBHOOK_INITIAL_BACKOFF: $(yaml-quote ${ADVANCED_AUDIT_WEBHOOK_INITIAL_BACKOFF:-})
 GCE_API_ENDPOINT: $(yaml-quote ${GCE_API_ENDPOINT:-})
 GCE_GLBC_IMAGE: $(yaml-quote ${GCE_GLBC_IMAGE:-})
+CUSTOM_INGRESS_YAML: |
+$(echo "${CUSTOM_INGRESS_YAML:-}" | sed -e "s/'/''/g")
 ENABLE_NODE_JOURNAL: $(yaml-quote ${ENABLE_NODE_JOURNAL:-false})
 PROMETHEUS_TO_SD_ENDPOINT: $(yaml-quote ${PROMETHEUS_TO_SD_ENDPOINT:-})
 PROMETHEUS_TO_SD_PREFIX: $(yaml-quote ${PROMETHEUS_TO_SD_PREFIX:-})