Add HAProxy to addons

HAProxy is the most minimal implementation of the Gateway API - can be used in e2e tests

Signed-off-by: Jake Sanders <i@am.so-aweso.me>

devel/BUILD.bazel

@@ -12,6 +12,7 @@ filegroup(
         "//devel/addon/bind:all-srcs",
         "//devel/addon/certmanager:all-srcs",
         "//devel/addon/gatewayapi:all-srcs",
+        "//devel/addon/haproxy:all-srcs",
         "//devel/addon/ingressnginx:all-srcs",
         "//devel/addon/kyverno:all-srcs",
         "//devel/addon/pebble:all-srcs",

devel/addon/bind/manifests/configmap.yaml

@@ -36,7 +36,9 @@ data:
     			 604800 )	; Negative Cache TTL
     @	IN	NS	localhost.
     *.ingress-nginx	IN  A {SERVICE_IP_PREFIX}.15
-    ingress-nginx	IN	A	{SERVICE_IP_PREFIX}.15
+    ingress-nginx	IN	A {SERVICE_IP_PREFIX}.15
+    *.haproxy IN  A {SERVICE_IP_PREFIX}.14
+    haproxy IN  A {SERVICE_IP_PREFIX}.14
 
   db.dns01.example.com: |
     ;

devel/addon/haproxy/BUILD.bazel

@@ -0,0 +1,13 @@
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

devel/addon/haproxy/install.sh

@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+
+# Copyright 2020 The cert-manager Authors.
+#
+# 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.
+
+# Install HAProxy as a gateway-API e2e test
+
+set -o nounset
+set -o errexit
+set -o pipefail
+
+SCRIPT_ROOT=$(dirname "${BASH_SOURCE}")
+source "${SCRIPT_ROOT}/../../lib/lib.sh"
+
+check_tool helm
+check_tool kubectl
+
+helm repo add haproxy-ingress https://haproxy-ingress.github.io/charts
+helm repo update
+
+export NAMESPACE="haproxy-ingress"
+export VERSION="0.13.0-beta.2"
+
+helm upgrade \
+  --install \
+  --wait \
+  --create-namespace \
+  --namespace "${NAMESPACE}" \
+  --version "${VERSION}" \
+  --set "controller.extraArgs.watch-gateway=true" \
+  --set "controller.service.type=ClusterIP" \
+  --set "controller.service.clusterIP=10.0.0.14" \
+  haproxy-ingress haproxy-ingress/haproxy-ingress
+
+cat <<EOYAML | kubectl apply -f -
+apiVersion: networking.x-k8s.io/v1alpha1
+kind: GatewayClass
+metadata:
+  name: haproxy-acmesolver
+spec:
+  controller: haproxy-ingress.github.io/controller
+EOYAML
+
+cat <<EOYAML | kubectl apply -f -
+apiVersion: networking.x-k8s.io/v1alpha1
+kind: Gateway
+metadata:
+  name: acmesolver
+  namespace: haproxy-ingress
+spec:
+  gatewayClassName: haproxy-acmesolver
+  listeners:
+  - protocol: HTTP
+    port: 80
+    routes:
+      kind: HTTPRoute
+      selector:
+        matchLabels:
+          acme: solver
+      namespaces:
+        from: All
+EOYAML
+
+# Example of a cross namespace HTTPRoute
+cat <<EOYAML | kubectl apply -f -
+apiVersion: networking.x-k8s.io/v1alpha1
+kind: HTTPRoute
+metadata:
+  labels:
+    acme: solver
+  name: test
+  namespace: default
+spec:
+  hostnames:
+  - blah.haproxy.http01.example.com
+  rules:
+  - forwardTo:
+    - serviceName: echoserver
+      port: 8080
+EOYAML

devel/setup-e2e-deps.sh

@@ -61,3 +61,6 @@ echo "Loading vault into the cluster..."
 
 echo "Installing sample-external-issuer into the cluster..."
 "${SCRIPT_ROOT}/addon/sample-external-issuer/install.sh"
+
+echo "Installing HAProxy into the cluster"
+"${SCRIPT_ROOT}/addon/haproxy/install.sh"