python-web-manifests

Contains Kubernetes manifests and ArgoCD configuration files for deploying your application

README for Python Web Manifests

This project contains Kubernetes manifests for deploying a Python web application using blue-green deployment strategy. The manifests are organized in the manifests directory and include configurations for deployments, services, Istio resources, and environment variables.

Directory Structure

python-web-manifests
├── manifests
│   ├── deployment-blue.yaml         # Deployment for the blue version of the application
│   ├── deployment-green.yaml        # Deployment for the green version of the application
│   ├── service.yaml                 # Service to route traffic to the application
│   ├── istio-virtualservice.yaml    # Istio VirtualService for traffic routing
│   ├── istio-destinationrule.yaml   # Istio DestinationRule for service subsets
│   ├── istio-gateway.yaml           # Istio Gateway for HTTP traffic
│   ├── env.yaml                     # ConfigMap for environment variables
│   └── kustomization.yaml            # Kustomize configuration for managing resources
├── LICENSE                           # License information for the project
└── README.md                        # Project documentation

Manifests Overview

• Deployment Manifests:

  • deployment-blue.yaml: Defines a Kubernetes Deployment named "python-web-blue" with 2 replicas.
  • deployment-green.yaml: Defines a Kubernetes Deployment named "python-web-green" with 0 replicas.

• Service Manifest:

  • service.yaml: Defines a Kubernetes Service named "python-web-service" that routes traffic to the application.

• Istio Manifests:

  • istio-virtualservice.yaml: Defines an Istio VirtualService named "python-web-vs" for traffic routing based on weights.
  • istio-destinationrule.yaml: Defines an Istio DestinationRule named "python-web-dr" for service subsets.
  • istio-gateway.yaml: Defines an Istio Gateway named "python-web-gateway" that listens for HTTP traffic on port 80.

• Configuration:

  • env.yaml: Defines a ConfigMap named "env-config" containing environment variables.
  • kustomization.yaml: Used by Kustomize to manage the resources and generate the ConfigMap from env.yaml.

Usage

To deploy the application, use the Kubernetes manifests in the manifests directory. You can apply the manifests using kubectl apply -f <manifest-file>.

License

This project is licensed under the Apache License 2.0. See the LICENSE file for more details.