Add CI/CD workflows and Kubernetes configurations for deployment

script/cd.sh

@@ -0,0 +1,173 @@
+#!/bin/bash
+
+# Continuous Deployment Script for Kubernetes
+# This script deploys your application to a Kubernetes cluster
+
+# =============================================================================
+# Environment Variables (with default values)
+# =============================================================================
+
+# Kubernetes Configuration
+KUBECONFIG_DATA="${KUBECONFIG_DATA:-}"
+KUBERNETES_URL="${KUBERNETES_URL:-https://kubernetes.default.svc}"
+KUBERNETES_NAMESPACE="${KUBERNETES_NAMESPACE:-default}"
+KUBERNETES_INGRESS_HOST="${KUBERNETES_INGRESS_HOST:-auth-api.example.com}"
+KUBERNETES_DEPLOYMENT_REPLICAS="${KUBERNETES_DEPLOYMENT_REPLICAS:-2}"
+
+# Container Registry
+CONTAINER_REGISTRY_URL="${CONTAINER_REGISTRY_URL:-127.0.0.1}"
+CONTAINER_REGISTRY_USERNAME="${CONTAINER_REGISTRY_USERNAME:-username}"
+CONTAINER_REGISTRY_NAMESPACE="${CONTAINER_REGISTRY_NAMESPACE:-username}"
+CONTAINER_REGISTRY_PASSWORD="${CONTAINER_REGISTRY_PASSWORD:-password}"
+CONTAINER_IMAGE_NAME="${CONTAINER_IMAGE_NAME:-authenticator}"
+CONTAINER_IMAGE_TAG="${CONTAINER_IMAGE_TAG:-latest}"
+
+# Application Configuration
+DATABASE_DSN="${DATABASE_DSN:-postgres://postgres:password@localhost:5432/steam_union?sslmode=disable}"
+FORCE_RESTART="${FORCE_RESTART:-true}"
+
+# =============================================================================
+# Functions
+# =============================================================================
+
+# Print help message
+print_help() {
+    echo "Usage: $0 [OPTIONS]"
+    echo ""
+    echo "Environment Variables:"
+    echo "  KUBECONFIG_DATA              Kubernetes config data (base64 encoded)"
+    echo "  KUBERNETES_URL               Kubernetes API URL (default: https://kubernetes.default.svc)"
+    echo "  KUBERNETES_NAMESPACE         Kubernetes namespace (default: default)"
+    echo "  KUBERNETES_INGRESS_HOST      Ingress host (default: auth-api.example.com)"
+    echo "  KUBERNETES_DEPLOYMENT_REPLICAS  Number of pod replicas (default: 2)"
+    echo "  CONTAINER_REGISTRY_URL       Container registry URL (default: 127.0.0.1)"
+    echo "  CONTAINER_REGISTRY_USERNAME  Registry username"
+    echo "  CONTAINER_REGISTRY_PASSWORD  Registry password"
+    echo "  CONTAINER_IMAGE_NAME         Image name (default: authenticator)"
+    echo "  CONTAINER_IMAGE_TAG          Image tag (default: latest)"
+    echo "  DATABASE_DSN                 Database connection string"
+    echo "  FORCE_RESTART                Force rollout restart (default: true)"
+    echo ""
+    echo "Commands:"
+    echo "  deploy      Deploy application to Kubernetes"
+    echo "  help        Show this help message (default)"
+}
+
+# Setup kubectl configuration
+setup_kubectl() {
+    echo "Setting up kubectl configuration..."
+    
+    if [ -z "${KUBECONFIG_DATA}" ]; then
+        echo "✗ KUBECONFIG_DATA is not set"
+        return 1
+    fi
+    
+    mkdir -p ~/.kube
+    echo "${KUBECONFIG_DATA}" | base64 -d > ~/.kube/config
+    chmod 600 ~/.kube/config
+    
+    echo "✓ kubectl configured"
+    return 0
+}
+
+# Create namespace if it doesn't exist
+create_namespace() {
+    echo "Checking namespace: ${KUBERNETES_NAMESPACE}"
+    
+    kubectl get namespace "${KUBERNETES_NAMESPACE}" &> /dev/null
+    
+    if [ $? -ne 0 ]; then
+        echo "Creating namespace: ${KUBERNETES_NAMESPACE}"
+        kubectl create namespace "${KUBERNETES_NAMESPACE}"
+    else
+        echo "✓ Namespace exists: ${KUBERNETES_NAMESPACE}"
+    fi
+}
+
+# Create image pull secret
+create_image_pull_secret() {
+    echo "Creating image pull secret..."
+    
+    kubectl create secret docker-registry regcred \
+        --docker-server="${CONTAINER_REGISTRY_URL}" \
+        --docker-username="${CONTAINER_REGISTRY_USERNAME}" \
+        --docker-password="${CONTAINER_REGISTRY_PASSWORD}" \
+        --namespace="${KUBERNETES_NAMESPACE}" \
+        --dry-run=client -o yaml | kubectl apply -f -
+    
+    echo "✓ Image pull secret created/updated"
+}
+
+# Deploy to Kubernetes
+deploy_to_kubernetes() {
+    FULL_IMAGE_NAME="${CONTAINER_REGISTRY_URL}/${CONTAINER_REGISTRY_NAMESPACE}/${CONTAINER_IMAGE_NAME}:${CONTAINER_IMAGE_TAG}"
+    
+    echo "=========================================="
+    echo "Deploying to Kubernetes"
+    echo "=========================================="
+    echo "Namespace: ${KUBERNETES_NAMESPACE}"
+    echo "Image: ${FULL_IMAGE_NAME}"
+    echo "Host: ${KUBERNETES_INGRESS_HOST}"
+    echo "Database DSN: ${DATABASE_DSN}"
+    echo ""
+    
+    # Setup kubectl
+    setup_kubectl || return 1
+    
+    # Create namespace
+    create_namespace || return 1
+    
+    # Create image pull secret
+    create_image_pull_secret || return 1
+    
+    # Apply Kubernetes manifests with variable substitution
+    echo "Applying Kubernetes manifests..."
+    
+    export FULL_IMAGE_NAME
+    export KUBERNETES_NAMESPACE
+    export KUBERNETES_INGRESS_HOST
+    export CONTAINER_IMAGE_NAME
+    export DATABASE_DSN
+    
+    for file in script/k8s/*.yaml; do
+        echo "Applying: $(basename $file)"
+        envsubst < "$file" | kubectl apply -f -
+    done
+    
+    echo ""
+    echo "✓ Deployment complete"
+    echo ""
+    echo "Waiting for rollout..."
+    
+    # Force restart if enabled
+    if [ "${FORCE_RESTART}" = "true" ]; then
+        echo "Forcing rollout restart..."
+        kubectl rollout restart deployment/${CONTAINER_IMAGE_NAME} -n ${KUBERNETES_NAMESPACE}
+    fi
+    
+    kubectl rollout status deployment/${CONTAINER_IMAGE_NAME} -n ${KUBERNETES_NAMESPACE} --timeout=300s
+    
+    if [ $? -eq 0 ]; then
+        echo ""
+        echo "✓ Application is ready"
+        echo "URL: http://${KUBERNETES_INGRESS_HOST}"
+        return 0
+    else
+        echo ""
+        echo "✗ Rollout failed or timed out"
+        return 1
+    fi
+}
+
+# =============================================================================
+# Main Script
+# =============================================================================
+
+case "${1:-help}" in
+    deploy)
+        deploy_to_kubernetes
+        ;;
+    help|*)
+        print_help
+        ;;
+esac