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Feature run selenium tests grid on kubernetes via helm chart (#2027)
* feat(k8stests): added kubernetes tests cases * docs(keda): updated readme to keda version 2.12 * chore(optimize): matrix strategy in workflow * chore(docker): allow time to docker pull images * fix(dry-principle): Reusing existing test.py
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‎.github/workflows/helm-chart-test.yml

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- 'charts/selenium-grid/**'
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workflow_dispatch:
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permissions:
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contents: read
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jobs:
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lint-test:
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name: "Lint Tests with ct"
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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- name: Create kind cluster
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uses: helm/[email protected]
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with:
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config: ./tests/kind-cluster-config.yaml
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- name: Run chart-testing (install)
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run: ct install --all --config tests/chart-test.yaml
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deploy-grid-selenium-tests:
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name: "Run Selenium Tests on K8s"
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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browser: [NodeChrome,NodeEdge,NodeFirefox]
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Set up Helm
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uses: azure/setup-helm@v3
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with:
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version: v3.13.2
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: '3.10'
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check-latest: true
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- name: Create kind cluster
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uses: helm/[email protected]
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with:
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config: ./tests/kind-cluster-config.yaml
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# 👋 Documentation link for Ingress Installation on kind k8s cluster https://kind.sigs.k8s.io/docs/user/ingress
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- name: Install ingress-nginx on kind kubernetes cluster
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run: |
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kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/kind/deploy.yaml
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kubectl wait --namespace ingress-nginx \
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--for=condition=ready pod \
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--selector=app.kubernetes.io/component=controller \
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--timeout=90s
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- name: Deploy Selenium Grid Chart
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run: |
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helm repo add kedacore https://kedacore.github.io/charts
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helm repo update
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helm dependency build charts/selenium-grid
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helm upgrade --install selenium-grid -f ./tests/override-kind-auth-${{matrix.browser}}-values.yaml charts/selenium-grid --namespace selenium-grid-test --create-namespace
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kubectl get ingress --all-namespaces
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- name: Verify Post Deployment Grid Health and k8s pods status
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run: |
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sleep 20 # Allow Kubernetes to pull Docker Images and start Pods
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python ./tests/K8sSmokeTest.py "http://localhost"
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kubectl get pods -n selenium-grid-test
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kubectl get events -n selenium-grid-test
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- name: Run Selenium Tests Against Kubernetes
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run: |
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export SELENIUM_GRID_HOST=localhost
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export SELENIUM_GRID_PORT=80
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export RUN_IN_DOCKER_COMPOSE=true
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./tests/bootstrap.sh ${{matrix.browser}}

‎charts/selenium-grid/README.md

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Selenium Grid has the ability to autoscale browser nodes up/down based on the pending requests in the
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session queue.
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To do this [KEDA](https://keda.sh/docs/2.10/scalers/selenium-grid-scaler/) is used. When enabling
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To do this [KEDA](https://keda.sh/docs/2.12/scalers/selenium-grid-scaler/) is used. When enabling
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autoscaling using `autoscaling.enabling` KEDA is installed automatically. To instead use an existing
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installation of KEDA you can enable autoscaling with `autoscaling.enableWithExistingKEDA` instead.
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KEDA can scale either with
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[deployments](https://keda.sh/docs/2.10/concepts/scaling-deployments/#scaling-of-deployments-and-statefulsets)
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or [jobs](https://keda.sh/docs/2.10/concepts/scaling-jobs/) and the charts support both types. This
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[deployments](https://keda.sh/docs/2.12/concepts/scaling-deployments/#scaling-of-deployments-and-statefulsets)
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or [jobs](https://keda.sh/docs/2.12/concepts/scaling-jobs/) and the charts support both types. This
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chart support both modes. It is controlled with `autoscaling.scalingType` that can be set to either
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job (default) or deployment.
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‎tests/SeleniumTests/__init__.py

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from selenium.webdriver.chrome.options import Options as ChromeOptions
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SELENIUM_GRID_HOST = os.environ.get('SELENIUM_GRID_HOST', 'localhost')
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SELENIUM_GRID_PORT = os.environ.get('SELENIUM_GRID_PORT', '4444')
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class SeleniumGenericTests(unittest.TestCase):
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def setUp(self):
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self.driver = webdriver.Remote(
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options=ChromeOptions(),
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command_executor="http://%s:4444" % SELENIUM_GRID_HOST
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command_executor="http://%s:%s" % (SELENIUM_GRID_HOST,SELENIUM_GRID_PORT)
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)
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class EdgeTests(SeleniumGenericTests):
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def setUp(self):
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self.driver = webdriver.Remote(
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options=EdgeOptions(),
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command_executor="http://%s:4444" % SELENIUM_GRID_HOST
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command_executor="http://%s:%s" % (SELENIUM_GRID_HOST,SELENIUM_GRID_PORT)
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)
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class FirefoxTests(SeleniumGenericTests):
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def setUp(self):
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self.driver = webdriver.Remote(
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options=FirefoxOptions(),
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command_executor="http://%s:4444" % SELENIUM_GRID_HOST
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command_executor="http://%s:%s" % (SELENIUM_GRID_HOST,SELENIUM_GRID_PORT)
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)
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def test_title_and_maximize_window(self):

‎tests/SmokeTests/__init__.py

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from urllib.request import urlopen
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SELENIUM_GRID_HOST = os.environ.get('SELENIUM_GRID_HOST', 'localhost')
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SELENIUM_GRID_PORT = os.environ.get('SELENIUM_GRID_PORT', '4444')
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class SmokeTests(unittest.TestCase):
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def smoke_test_container(self, port):
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class GridTest(SmokeTests):
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def test_grid_is_up(self):
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self.smoke_test_container(4444)
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self.smoke_test_container('%s' % SELENIUM_GRID_PORT)

‎tests/kind-cluster-config.yaml

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# This Config is required for KIND cluster to enable ingress. Documented here https://kind.sigs.k8s.io/docs/user/ingress
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kind: Cluster
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apiVersion: kind.x-k8s.io/v1alpha4
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nodes:
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- role: control-plane
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kubeadmConfigPatches:
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- |
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kind: InitConfiguration
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nodeRegistration:
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kubeletExtraArgs:
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node-labels: "ingress-ready=true"
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extraPortMappings:
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- containerPort: 80
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hostPort: 80
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protocol: TCP
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- containerPort: 443
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hostPort: 443
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protocol: TCP

‎tests/override-kind-auth-NodeChrome-values.yaml

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# This is used in Helm chart testing. This disables the basic auth on seleneium grid
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# Basic auth settings for Selenium Grid
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basicAuth:
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# Enable or disable basic auth
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enabled: false
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# Configuration for edge nodes
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edgeNode:
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# Enable edge nodes
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enabled: false
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# Configuration for firefox nodes
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firefoxNode:
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# Enable firefox nodes
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enabled: false

‎tests/override-kind-auth-NodeEdge-values.yaml

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# This is used in Helm chart testing. This disables the basic auth on seleneium grid
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# Basic auth settings for Selenium Grid
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basicAuth:
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# Enable or disable basic auth
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enabled: false
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# Configuration for chrome nodes
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chromeNode:
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# Enable chrome nodes
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enabled: false
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# Configuration for firefox nodes
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firefoxNode:
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# Enable firefox nodes
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enabled: false

‎tests/override-kind-auth-NodeFirefox-values.yaml

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# This is used in Helm chart testing. This disables the basic auth on seleneium grid
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# Basic auth settings for Selenium Grid
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basicAuth:
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# Enable or disable basic auth
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enabled: false
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# Configuration for chrome nodes
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chromeNode:
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# Enable chrome nodes
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enabled: false
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# Configuration for edge nodes
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edgeNode:
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# Enable edge nodes
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enabled: false

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