Contains helm chart, values and templates for a selenium grid deployment

charts/selenium/Chart.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: v2
+name: selenium-grid
+description: A Helm chart for deploying a Selenium Grid with Firefox or Chrome Node(s)
+type: application
+home: "galasa.dev"
+version: "0.1.0"
+appVersion: "4.21.0"

charts/selenium/templates/node-deployment.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}-{{ .Values.node.type }}-node
+  labels:
+    app: {{ .Release.Name }}-{{ .Values.node.type }}-node
+spec:
+  replicas: {{ .Values.node.replicaCount | default 1 }}
+  selector:
+    matchLabels:
+      app: {{ .Release.Name }}-{{ .Values.node.type }}-node
+  template:
+    metadata:
+      labels:
+        app: {{ .Release.Name }}-{{ .Values.node.type }}-node
+    spec:
+      serviceAccountName: {{ .Values.serviceAccountName | default "default" }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ .Values.node.type }}
+          image: "{{ .Values.node.image.repository }}:{{ .Values.node.image.tag }}"
+          imagePullPolicy: "{{ .Values.node.image.pullPolicy }}"
+          ports:
+            - containerPort: 4444
+              name: webdriver
+              protocol: TCP
+            - containerPort: 5900
+              name: vnc
+              protocol: TCP
+            - containerPort: 7900
+              name: novnc
+              protocol: TCP
+          env:
+            - name: SE_EVENT_BUS_HOST
+              value: "{{ .Release.Name }}-hub"
+            - name: SE_EVENT_BUS_PUBLISH_PORT
+              value: "4442"
+            - name: SE_EVENT_BUS_SUBSCRIBE_PORT
+              value: "4443"
+            - name: SE_NODE_PORT
+              value: "4444"
+            - name: SE_NODE_MAX_SESSION
+              value: "{{ .Values.node.maxSession | default "1" }}"
+            - name: SE_NODE_SESSION_TIMEOUT
+              value: "{{ .Values.node.sessionTimeout | default "60" }}"
+            - name: SE_VNC_NO_PASSWORD
+              value: "true"
+          livenessProbe:
+            httpGet:
+              path: /status
+              port: 4444
+            initialDelaySeconds: 10
+            periodSeconds: 20
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /status
+              port: 4444
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            failureThreshold: 3
+          {{- with .Values.node.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}

charts/selenium/templates/node-service.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name }}-{{ .Values.node.type }}-node
+  labels:
+    app: {{ .Release.Name }}-{{ .Values.node.type }}-node
+  annotations:
+    description: "Exposes the {{ .Values.node.type | title }} node's WebDriver (4444), VNC (5900), and noVNC (7900) ports for live view access if headless mode is not turned on"
+spec:
+  type: {{ .Values.node.service.type }}
+  ports:
+    - name: webdriver
+      port: 4444
+      targetPort: 4444
+      protocol: TCP
+    - name: vnc
+      port: 5900
+      targetPort: 5900
+      protocol: TCP
+    - name: novnc
+      port: 7900
+      targetPort: 7900
+      protocol: TCP
+  selector:
+    app: {{ .Release.Name }}-{{ .Values.node.type }}-node

charts/selenium/templates/selenium-grid-hub.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}-hub
+  labels:
+    app: {{ .Release.Name }}-hub
+spec:
+  replicas: {{ .Values.hub.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ .Release.Name }}-hub
+  template:
+    metadata:
+      labels:
+        app: {{ .Release.Name }}-hub
+    spec:
+      serviceAccountName: {{ .Values.serviceAccountName | default "default" }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: hub
+          image: "{{ .Values.hub.image.repository }}:{{ .Values.hub.image.tag }}"
+          imagePullPolicy: {{ .Values.hub.image.pullPolicy }}
+          ports:
+            - name: web
+              containerPort: 4444
+              protocol: TCP
+            - name: event-pub
+              containerPort: 4442
+              protocol: TCP
+            - name: event-sub
+              containerPort: 4443
+              protocol: TCP
+          env:
+            - name: GRID_BROWSER_TIMEOUT
+              value: "{{ .Values.hub.browserTimeout }}"
+            - name: GRID_TIMEOUT
+              value: "{{ .Values.hub.timeout }}"
+            - name: SE_EVENT_BUS_PUBLISH_PORT
+              value: "4442"
+            - name: SE_EVENT_BUS_SUBSCRIBE_PORT
+              value: "4443"
+          {{- with .Values.hub.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          livenessProbe:
+            httpGet:
+              path: /status
+              port: 4444
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /status
+              port: 4444
+            initialDelaySeconds: 5
+            periodSeconds: 5

charts/selenium/templates/selenium-grid-ingress.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ .Release.Name }}-hub
+  labels:
+    app: {{ .Release.Name }}-hub
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.ingressClassName }}
+  ingressClassName: {{ .Values.ingress.ingressClassName }}
+  {{- end }}
+  {{- with .Values.ingress.tls }}
+  tls:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  rules:
+  - host: {{ .Values.ingress.externalHostname }}
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: {{ .Release.Name }}-hub
+            port:
+              number: {{ .Values.hub.service.port | default 4444 }}

charts/selenium/templates/selenium-grid-service.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name }}-hub
+  labels:
+    app: {{ .Release.Name }}-hub
+spec:
+  type: {{ .Values.hub.service.type }}
+  ports:
+    - name: web
+      port: 4444
+      targetPort: 4444
+      protocol: TCP
+    - name: event-pub
+      port: 4442
+      targetPort: 4442
+      protocol: TCP
+    - name: event-sub
+      port: 4443
+      targetPort: 4443
+      protocol: TCP
+  selector:
+    app: {{ .Release.Name }}-hub

charts/selenium/values.yaml

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+#
+# Copyright contributors to the Galasa project
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+hub:
+  replicaCount: 1  # Number of Selenium Hub replicas to run
+
+  image:
+    repository: selenium/hub          # Docker image repository for Selenium Hub
+    tag: 4.8.3-20230328              # Specific image tag/version to use
+    pullPolicy: IfNotPresent         # Image pull policy (IfNotPresent to avoid pulling if image exists)
+
+  browserTimeout: "60"                # Timeout (in seconds) for browser requests to the hub
+  timeout: "60"                      # General timeout (in seconds) for hub operations
+
+  resources:                        # Kubernetes resource requests and limits for the hub pods
+    limits:
+      cpu: "500m"                   # Max CPU allowed
+      memory: "512Mi"               # Max memory allowed
+    requests:
+      cpu: "250m"                   # Minimum CPU requested
+      memory: "256Mi"               # Minimum memory requested
+
+  service:
+    type: ClusterIP                 # Kubernetes Service type (ClusterIP, NodePort, or LoadBalancer)
+    port: 4444                     # Port exposed by the Selenium Hub service
+
+serviceAccountName: ""             # Name of Kubernetes ServiceAccount to use
+
+nodeSelector:
+  kubernetes.io/arch: amd64        # Node architecture selector; schedules pods to amd64 nodes
+
+ingress:
+  enabled: true                    # Enable or disable Ingress for the Selenium Hub
+  ingressClassName: nginx          # Ingress controller class name (e.g., nginx)
+  externalHostname: "justin-test-selenium-ingress.cicsk8s.hursley.ibm.com"
+                                  # External hostname for accessing the hub via ingress
+
+  annotations:                    # Annotations for the Ingress resource
+    nginx.ingress.kubernetes.io/ssl-redirect: "false"
+                                  # Disable automatic SSL redirect
+    nginx.ingress.kubernetes.io/rewrite-target: /
+                                  # Rewrite target path for incoming requests
+
+  # tls:                         # TLS configuration (optional) for HTTPS ingress
+  #   - hosts:
+  #       - seleniumhub.example.com
+  #     secretName: seleniumhub-tls-secret
+
+node:
+  type: chrome                    # Browser type for nodes; options: "firefox" or "chrome"
+  replicaCount: 3                 # Number of browser nodes to deploy
+
+  service:
+    type: ClusterIP              # Service type for browser nodes (ClusterIP, NodePort, LoadBalancer)
+
+  image:
+    repository: selenium/node-chrome    # Docker image repo for browser node
+                                        # Change to "selenium/node-firefox" for Firefox nodes
+    tag: 4.8.3-20230328                 # Image tag/version
+    pullPolicy: IfNotPresent            # Image pull policy
+
+  maxSession: 1                   # Maximum concurrent sessions per browser node
+  sessionTimeout: 300             # Timeout in seconds for each session on the node
+
+  resources:                     # Kubernetes resource requests and limits for browser nodes
+    limits:
+      cpu: "500m"                # Max CPU allowed per node pod
+      memory: "512Mi"            # Max memory allowed per node pod
+    requests:
+      cpu: "250m"                # Minimum CPU requested per node pod
+      memory: "256Mi"            # Minimum memory requested per node pod