Add e2e tests for helm chart

test/e2e/kind.yaml

@@ -1,6 +1,14 @@
 kind: Cluster
-apiVersion: kind.sigs.k8s.io/v1alpha3
+apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
 - role: control-plane
 - role: worker
 - role: worker
+kubeadmConfigPatches:
+- |
+  kind: ClusterConfiguration
+  metadata:
+    name: config
+  controllerManager:
+    extraArgs:
+      namespace-sync-period: 10s

test/e2e/run-chart-test.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# Copyright 2020 The Kubernetes 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+cleanup() {
+  if [[ "${KUBETEST_IN_DOCKER:-}" == "true" ]]; then
+    kind "export" logs --name ${KIND_CLUSTER_NAME} "${ARTIFACTS}/logs" || true
+  fi
+
+  kind delete cluster \
+    --name ${KIND_CLUSTER_NAME}
+}
+
+trap cleanup EXIT
+
+if ! command -v kind --version &> /dev/null; then
+  echo "kind is not installed. Use the package manager or visit the official site https://kind.sigs.k8s.io/"
+  exit 1
+fi
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+export K8S_VERSION=${K8S_VERSION:-v1.18.0@sha256:0e20578828edd939d25eb98496a685c76c98d54084932f76069f886ec315d694}
+
+KIND_CLUSTER_NAME="ingress-nginx-dev"
+
+echo "[dev-env] creating Kubernetes cluster with kind"
+export KUBECONFIG="${HOME}/.kube/kind-config-${KIND_CLUSTER_NAME}"
+kind create cluster \
+  --name ${KIND_CLUSTER_NAME} \
+  --config "${DIR}/kind.yaml" \
+  --retain \
+  --image "kindest/node:${K8S_VERSION}"
+
+echo "Kubernetes cluster:"
+kubectl get nodes -o wide
+
+echo "[dev-env] running helm chart e2e tests..."
+docker run --rm --interactive --network host \
+    --name ct \
+    --volume $KUBECONFIG:/root/.kube/config \
+    --volume "${DIR}/../../":/workdir \
+    --workdir /workdir \
+    quay.io/helmpack/chart-testing:v3.0.0-rc.1 ct install \
+        --charts charts/ingress-nginx \
+        --helm-extra-args "--timeout 120s"