Deploy Interview App #2
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| name: Deploy Kubernetes Troubleshooting Scenarios | |
| on: | |
| workflow_dispatch: | |
| inputs: | |
| kubeconfig: | |
| description: 'Kubeconfig file content' | |
| required: true | |
| cluster-name: | |
| description: 'Name of the cluster to target' | |
| required: true | |
| default: 'default-cluster' | |
| namespace: | |
| description: 'Namespace to deploy to' | |
| required: false | |
| default: 'troubleshooting-scenarios' | |
| env: | |
| IMAGE_NAME: your-registry/k8s-troubleshooting-scenarios | |
| IMAGE_TAG: latest | |
| jobs: | |
| deploy: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| - name: Set up Kubernetes tools | |
| uses: azure/setup-kubectl@v3 | |
| with: | |
| version: 'latest' | |
| - name: Configure Kubernetes cluster | |
| run: | | |
| mkdir -p ~/.kube | |
| echo "${{ inputs.kubeconfig }}" > ~/.kube/config | |
| kubectl config set-context ${{ inputs.cluster-name }} --cluster=${{ inputs.cluster-name }} --user=${{ inputs.cluster-name }} | |
| kubectl config use-context ${{ inputs.cluster-name }} | |
| kubectl version --client | |
| - name: Create namespace if needed | |
| run: | | |
| kubectl create namespace ${{ inputs.namespace }} --dry-run=client -o yaml | kubectl apply -f - | |
| - name: Deploy OOM Killer Scenario | |
| run: | | |
| cat <<EOF | kubectl apply -n ${{ inputs.namespace }} -f - | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| name: oom-deployment | |
| spec: | |
| replicas: 1 | |
| selector: | |
| matchLabels: | |
| app: oom-app | |
| template: | |
| metadata: | |
| labels: | |
| app: oom-app | |
| spec: | |
| containers: | |
| - name: oom-container | |
| image: becloudready/k8s-troubleshooting-scenarios:2.0.0 | |
| env: | |
| - name: FAILURE_MODE | |
| value: "oom" | |
| resources: | |
| limits: | |
| memory: "128Mi" | |
| EOF | |
| - name: Deploy Missing File Scenario | |
| run: | | |
| cat <<EOF | kubectl apply -n ${{ inputs.namespace }} -f - | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| name: missing-file-deployment | |
| spec: | |
| replicas: 1 | |
| selector: | |
| matchLabels: | |
| app: missing-file-app | |
| template: | |
| metadata: | |
| labels: | |
| app: missing-file-app | |
| spec: | |
| containers: | |
| - name: missing-file-container | |
| image: becloudready/k8s-troubleshooting-scenarios:2.0.0 | |
| env: | |
| - name: FAILURE_MODE | |
| value: "missing_file" | |
| EOF | |
| - name: Deploy DNS Issues Scenario | |
| run: | | |
| cat <<EOF | kubectl apply -n ${{ inputs.namespace }} -f - | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| name: dns-issues-deployment | |
| spec: | |
| replicas: 1 | |
| selector: | |
| matchLabels: | |
| app: dns-issues-app | |
| template: | |
| metadata: | |
| labels: | |
| app: dns-issues-app | |
| spec: | |
| dnsPolicy: Default | |
| containers: | |
| - name: dns-issues-container | |
| image: becloudready/k8s-troubleshooting-scenarios:2.0.0 | |
| env: | |
| - name: FAILURE_MODE | |
| value: "dns" | |
| EOF | |
| - name: Deploy Taints and Tolerations Example | |
| run: | | |
| cat <<EOF | kubectl apply -n ${{ inputs.namespace }} -f - | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| name: tolerations-deployment | |
| spec: | |
| replicas: 1 | |
| selector: | |
| matchLabels: | |
| app: tolerations-app | |
| template: | |
| metadata: | |
| labels: | |
| app: tolerations-app | |
| spec: | |
| tolerations: | |
| - key: "dedicated" | |
| operator: "Equal" | |
| value: "gpu" | |
| effect: "NoSchedule" | |
| containers: | |
| - name: tolerations-container | |
| image: becloudready/k8s-troubleshooting-scenarios:2.0.0 | |
| EOF | |
| - name: Deploy Affinity/Anti-affinity Example | |
| run: | | |
| cat <<EOF | kubectl apply -n ${{ inputs.namespace }} -f - | |
| apiVersion: apps/v1 | |
| kind: Deployment | |
| metadata: | |
| name: affinity-deployment | |
| spec: | |
| replicas: 3 | |
| selector: | |
| matchLabels: | |
| app: affinity-app | |
| template: | |
| metadata: | |
| labels: | |
| app: affinity-app | |
| spec: | |
| affinity: | |
| podAntiAffinity: | |
| requiredDuringSchedulingIgnoredDuringExecution: | |
| - labelSelector: | |
| matchExpressions: | |
| - key: app | |
| operator: In | |
| values: | |
| - affinity-app | |
| topologyKey: "kubernetes.io/hostname" | |
| containers: | |
| - name: affinity-container | |
| image: becloudready/k8s-troubleshooting-scenarios:2.0.0 | |
| EOF | |
| - name: Verify deployments | |
| run: | | |
| kubectl get deployments -n ${{ inputs.namespace }} | |
| kubectl get pods -n ${{ inputs.namespace }} -w --timeout=60s |