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Create Kubernetes Deployment Manifests

Objective: Author Kubernetes manifests for production deployment.

Description: This subtask involves creating base manifests and environment-specific overlays using Kustomize for production deployment.

Dependencies: Finalize GitHub Actions CI/CD Pipeline

Details:

  • Create base Kubernetes manifests for all core services.
  • Develop overlays for different environments (dev, staging, prod) using Kustomize.
  • Store manifests in the infrastructure/ directory.

Status: Done

Test Strategy: Deploy to a local Kubernetes cluster and verify all pods are running using kubectl get pods.

Kubernetes Manifests Structure​

flowchart TD
  A[Base Manifests] --> B[Dev Overlay]
  A --> C[Staging Overlay]
  A --> D[Prod Overlay]
  B --> E[Deployed Services]
  C --> E
  D --> E

Explanatory Notes​

  • Base Manifests: Define the core configuration for all environments, ensuring consistency and reducing duplication.
  • Overlays: Allow customization for dev, staging, and prod without modifying the base. This supports safe experimentation and controlled rollouts.
  • Kustomize: Enables declarative management of overlays and simplifies complex deployments.
  • Best Practices:
    • Store manifests and overlays under version control.
    • Use environment variables and secrets for sensitive data.
    • Validate manifests with kubectl apply --dry-run=client before deploying.
  • Troubleshooting:
    • Check pod status with kubectl get pods and logs with kubectl logs <pod>.
    • Ensure resource limits and dependencies are correctly set.