Add test for ingress-nginx.

ingress/single-cluster/ingress-nginx/README.md

@@ -19,10 +19,12 @@ GKE allows customers to deploy their own Ingress Controllers instead of the stan
 - 1.16.5-gke.1 and later.
 
 
+## Note
+NGINX is not one of the GKE offering, this is just an exmaple of using custom controller.
 
 ### Networking Manifests
 
-In this example an internal Ingress resource matches for HTTP traffic with `foo.example.com`  for path `/foo`  and sends it to the `foo` Service at port 8080. A public IP address is automatically provisioned by the Ngnix controller which listens for traffic on port 8080. The Ingress resource below shows that there is one host match. Any traffic which does not match this is sent to the default backend to provide 404 responses.
+In this example an external Ingress resource matches for HTTP traffic with `foo.example.com`  for path `/foo`  and sends it to the `foo` Service at port 8080. A public IP address is automatically provisioned by the Ngnix controller which listens for traffic on port 8080. The Ingress resource below shows that there is one host match. Any traffic which does not match this is sent to the default backend to provide 404 responses.
 
 
 ```yaml

ingress/single-cluster/ingress-nginx/cleanup.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit;
+set -o nounset;
+set -o pipefail;
+set -o xtrace;
+
+source ./test/helper.sh
+test_name="ingress-nginx"
+context=$(get_context "${test_name}")
+
+if [[ ! -z "${context}" ]]; then
+    ingress_name="foo-external"
+    fr=$(get_forwarding_rule "${ingress_name}" "${test_name}" "${context}")
+    thp=$(get_target_http_proxy "${ingress_name}" "${test_name}" "${context}")
+    thsp=$(get_target_https_proxy "${ingress_name}" "${test_name}" "${context}")
+    um=$(get_url_map "${ingress_name}" "${test_name}" "${context}")
+    backends=$(get_backends "${ingress_name}" "${test_name}" "${context}")
+    negs=$(get_negs "${context}")
+
+    kubectl --context "${context}" delete -f ingress/single-cluster/ingress-nginx/ingress-nginx.yaml -n "${test_name}" || true
+    kubectl --context "${context}" delete -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.0/deploy/static/provider/cloud/deploy.yaml || true
+    kubectl --context "${context}" delete clusterrolebinding cluster-admin-binding || true
+    wait_for_glbc_deletion "${fr}" "${thp}" "${thsp}" "${um}" "${backends}" "${negs}"
+    kubectl --context "${context}" delete namespace "${test_name}" || true
+fi
+
+cleanup_gke_basic "${test_name}" "${ZONE}" "${REGION}"

ingress/single-cluster/ingress-nginx/run-test.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit;
+set -o nounset;
+set -o pipefail;
+set -o xtrace;
+
+source ./test/helper.sh
+test_name="ingress-nginx"
+context=$(get_context "${test_name}")
+
+if [[ -z "${context}" ]]; then
+    exit 1
+fi
+
+vip=$(wait_for_ingress_ip "foo-external" "${test_name}" "${context}")
+
+check_http_status "${vip}/foo" 200 "host: foo.example.com"

ingress/single-cluster/ingress-nginx/setup.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit;
+set -o nounset;
+set -o pipefail;
+set -o xtrace;
+
+source ./test/helper.sh
+test_name="ingress-nginx"
+setup_gke_basic "${test_name}" "${ZONE}" "${REGION}"
+context=$(get_context "${test_name}")
+
+if [[ -z "${context}" ]]; then
+    exit 1
+fi
+
+kubectl --context "${context}" create namespace "${test_name}"
+kubectl --context "${context}" create clusterrolebinding cluster-admin-binding \
+  --clusterrole cluster-admin \
+  --user $(gcloud config get-value account)
+kubectl --context "${context}" apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.0/deploy/static/provider/cloud/deploy.yaml
+
+for ATTEMPT in $(seq 30); do
+    if kubectl --context "${context}" apply -f ingress/single-cluster/ingress-nginx/ingress-nginx.yaml -n "${test_name}"; then
+        break
+    fi
+    sleep 10 # Wait for webhook to be fully setup.
+done