From 92cb1b23ed0e78e3459a7f4009a9957ff90442b4 Mon Sep 17 00:00:00 2001
From: Pravar Agrawal <pravaag1@in.ibm.com>
Date: Sun, 14 Mar 2021 12:39:35 +0530
Subject: [PATCH] add helm-test configurations

---
 Makefile                                      |  3 ++
 .../templates/tests/test-descheduler-pod.yaml | 29 +++++++++++++++
 test/run-helm-tests.sh                        | 36 +++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100644 charts/descheduler/templates/tests/test-descheduler-pod.yaml
 create mode 100755 test/run-helm-tests.sh

diff --git a/Makefile b/Makefile
index 73f43cfc2..37a7d307f 100644
--- a/Makefile
+++ b/Makefile
@@ -135,3 +135,6 @@ ifndef HAS_HELM
 	curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 && chmod 700 ./get_helm.sh && ./get_helm.sh
 endif
 	helm lint ./charts/descheduler
+
+test-helm:
+	./test/run-helm-tests.sh
diff --git a/charts/descheduler/templates/tests/test-descheduler-pod.yaml b/charts/descheduler/templates/tests/test-descheduler-pod.yaml
new file mode 100644
index 000000000..25772b3a2
--- /dev/null
+++ b/charts/descheduler/templates/tests/test-descheduler-pod.yaml
@@ -0,0 +1,29 @@
+apiVersion: v1
+kind: Pod
+metadata:
+    name: descheduler-test-pod
+    annotations:
+      "helm.sh/hook": test
+spec:
+    restartPolicy: Never
+    serviceAccountName: descheduler-ci
+    containers:
+      - name: descheduler-test-container
+        image: alpine:latest
+        imagePullPolicy: IfNotPresent
+        securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop:
+                - All
+            privileged: false
+            runAsNonRoot: false
+        command: ["/bin/ash"]
+        args:
+          - -c
+          - >-
+            apk --no-cache add curl &&
+            curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl &&
+            chmod +x ./kubectl &&
+            mv ./kubectl /usr/local/bin/kubectl &&
+            /usr/local/bin/kubectl get pods --namespace kube-system --token "$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" | grep "Completed"
\ No newline at end of file
diff --git a/test/run-helm-tests.sh b/test/run-helm-tests.sh
new file mode 100755
index 000000000..965e03b97
--- /dev/null
+++ b/test/run-helm-tests.sh
@@ -0,0 +1,36 @@
+# Copyright 2021 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.
+
+#!/bin/bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+K8S_VERSION=${KUBERNETES_VERSION:-v1.20.2}
+HELM_IMAGE_REPO="descheduler"
+HELM_IMAGE_TAG="helm-test"
+CHARTS_PATH="./charts/descheduler"
+VERSION=helm-test make image
+wget https://github.com/kubernetes-sigs/kind/releases/download/v0.10.0/kind-linux-amd64
+chmod +x kind-linux-amd64
+mv kind-linux-amd64 kind
+export PATH=$PATH:$PWD
+kind create cluster --image kindest/node:"${K8S_VERSION}" --config=./hack/kind_config.yaml
+kind load docker-image descheduler:helm-test
+helm install descheduler-ci --set image.repository="${HELM_IMAGE_REPO}",image.tag="${HELM_IMAGE_TAG}" --namespace kube-system "${CHARTS_PATH}"
+sleep 20s
+helm test descheduler-ci --namespace kube-system
+
+# Delete kind cluster once test is finished
+kind delete cluster