Create Helm test for redis chart

Task: 21711
Story: 2002201

This patch creates Helm test for redis chart

Change-Id: Ifac407b5544484f2626ba7ffdbd2e96fca6e51ef
Signed-off-by: Nikos Mimigiannis <nmimi@intracom-telecom.com>

redis/templates/configmap-bin.yaml

@@ -24,4 +24,8 @@ metadata:
 data:
   image-repo-sync.sh: |
 {{- include "helm-toolkit.scripts.image_repo_sync" . | indent 4 }}
+  redis-test.sh: |
+{{ tuple "test/_redis_test.sh.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
+  python-tests.py: |
+{{ tuple "test/_python_redis_tests.py.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
 {{- end }}

redis/templates/pod_test.yaml

@@ -0,0 +1,66 @@
+{{/*
+Copyright 2019 The Openstack-Helm 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.
+*/}}
+
+{{- if .Values.manifests.helm_tests }}
+{{- $envAll := . }}
+
+{{- $serviceAccountName := print .Release.Name "-test" }}
+{{ tuple $envAll "tests" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{.Release.Name}}-test"
+  labels:
+{{ tuple $envAll "redis" "test" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+    {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
+spec:
+  serviceAccountName: {{ $serviceAccountName }}
+  nodeSelector:
+    {{ .Values.labels.test.node_selector_key }}: {{ .Values.labels.test.node_selector_value }}
+  restartPolicy: Never
+  containers:
+    - name: {{.Release.Name}}-helm-tests
+{{ tuple $envAll "helm_tests" | include "helm-toolkit.snippets.image" | indent 6 }}
+{{ tuple $envAll $envAll.Values.pod.resources.jobs.tests | include "helm-toolkit.snippets.kubernetes_resources" | indent 6 }}
+      command:
+        - /tmp/redis-test.sh
+      env:
+        - name: REDIS_HOST
+          value: "redis"
+        - name: REDIS_PORT
+          value: "{{ .Values.network.port }}"
+        - name: REDIS_DB
+          value: '0'
+      volumeMounts:
+        - name: redis-test
+          mountPath: /tmp/redis-test.sh
+          subPath: redis-test.sh
+        - name: redis-python
+          mountPath: /tmp/python-tests.py
+          subPath: python-tests.py
+  volumes:
+    - name: redis-test
+      configMap:
+        name: redis-bin
+        defaultMode: 0555
+    - name: redis-python
+      configMap:
+        name: redis-bin
+        defaultMode: 0555
+{{- end }}

redis/templates/test/_python_redis_tests.py.tpl

@@ -0,0 +1,54 @@
+import os
+import redis
+
+
+class RedisTest(object):
+
+    def __init__(self):
+        host = os.environ.get('REDIS_HOST', 'redis')
+        port = os.environ.get('REDIS_PORT', 6379)
+        db = os.environ.get('REDIS_DB', 0)
+        self.redis_conn = redis.Redis(host, port, db)
+
+    def test_connection(self):
+        ping = self.redis_conn.ping()
+        assert ping, "No connection to database"
+        print("Successfully connected to database")
+
+    def database_info(self):
+        ip_port = []
+        for client in self.redis_conn.client_list():
+            ip_port.append(client["addr"])
+        print(ip_port)
+        assert self.redis_conn.client_list(), "Database client's list is null"
+        return ip_port
+
+    def test_insert_delete_data(self):
+        key = "test"
+        value = "it's working"
+        result_set = self.redis_conn.set(key, value)
+        assert result_set, "Error: SET command failed"
+        print("Successfully SET keyvalue pair")
+        result_get = self.redis_conn.get(key)
+        assert result_get, "Error: GET command failed"
+        print("Successfully GET keyvalue pair")
+        db_size = self.redis_conn.dbsize()
+        assert db_size > 0, "Database size not valid"
+        result_delete = self.redis_conn.delete(key)
+        assert result_delete == 1, "Error: Delete command failed"
+        print("Successfully DELETED keyvalue pair")
+
+    def test_client_kill(self, client_ip_port_list):
+        for client_ip_port in client_ip_port_list:
+            result = self.redis_conn.client_kill(client_ip_port)
+            print(result)
+            assert result, "Client failed to be removed"
+            print("Successfully DELETED client")
+
+
+client_ip_port = []
+redis_client = RedisTest()
+redis_client.test_connection()
+client_ip_port = redis_client.database_info()
+redis_client.test_insert_delete_data()
+redis_client.test_client_kill(client_ip_port)

redis/templates/test/_redis_test.sh.tpl

@@ -0,0 +1,12 @@
+#!/bin/bash
+set -ex
+
+echo "Start Redis Test"
+echo "Print Environmental variables"
+echo $REDIS_HOST
+echo $REDIS_PORT
+echo $REDIS_DB
+apt-get update
+apt-get -y install python-pip
+yes w | pip install redis
+python /tmp/python-tests.py

redis/values.yaml

@@ -20,6 +20,7 @@
 images:
   tags:
     redis: docker.io/redis:4.0.1
+    helm_tests: docker.io/ubuntu
     dep_check: quay.io/stackanetes/kubernetes-entrypoint:v0.3.1
     image_repo_sync: docker.io/docker:17.07.0
   pull_policy: IfNotPresent
@@ -63,6 +64,13 @@ pod:
         limits:
           memory: "1024Mi"
           cpu: "2000m"
+      tests:
+        requests:
+          memory: "128Mi"
+          cpu: "100m"
+        limits:
+          memory: "1024Mi"
+          cpu: "2000m"
 
 labels:
   redis:
@@ -71,6 +79,9 @@ labels:
   job:
     node_selector_key: openstack-control-plane
     node_selector_value: enabled
+  test:
+    node_selector_key: openstack-control-plane
+    node_selector_value: enabled
 
 network:
   port: 6379
@@ -112,3 +123,4 @@ manifests:
   deployment: true
   job_image_repo_sync: true
   service: true
+  helm_tests: true

tools/deployment/common/010-deploy-docker-registry.sh

@@ -58,3 +58,6 @@ helm upgrade --install docker-registry ./registry \
 helm status docker-registry-nfs-provisioner
 helm status docker-registry-redis
 helm status docker-registry
+
+#NOTE: Run helm tests
+helm test docker-registry-redis