Implement annotation validation (#9673)

* Add validation to all annotations

* Add annotation validation for fcgi

* Fix reviews and fcgi e2e

* Add flag to disable cross namespace validation

* Add risk, flag for validation, tests

* Add missing formating

* Enable validation by default on tests

* Test validation flag

* remove ajp from list

* Finalize validation changes

* Add validations to CI

* Update helm docs

* Fix code review

* Use a better name for annotation risk

test/e2e/wait-for-nginx.sh

@@ -24,6 +24,7 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export NAMESPACE=$1
 export NAMESPACE_OVERLAY=$2
 export IS_CHROOT=$3
+export ENABLE_VALIDATIONS=$4
 
 echo "deploying NGINX Ingress controller in namespace $NAMESPACE"
 
@@ -68,6 +69,7 @@ else
 # TODO: remove the need to use fullnameOverride
 fullnameOverride: nginx-ingress
 controller:
+  enableAnnotationValidations: ${ENABLE_VALIDATIONS}
   image:
     repository: ingress-controller/controller
     chroot: ${IS_CHROOT}