Add Kubernetes deployment, service, ingress, and namespace configurations
This commit is contained in:
222
script/cd.sh
Normal file
222
script/cd.sh
Normal file
@@ -0,0 +1,222 @@
|
||||
#!/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:-example.com}"
|
||||
|
||||
# Container Registry (inherited from ci.sh)
|
||||
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="${CONTAINER_IMAGE_NAME:-image-name}"
|
||||
CONTAINER_IMAGE_TAG="${CONTAINER_IMAGE_TAG:-latest}"
|
||||
|
||||
# =============================================================================
|
||||
# Functions
|
||||
# =============================================================================
|
||||
|
||||
# Print help message
|
||||
print_help() {
|
||||
echo "Usage: $0 [OPTIONS]"
|
||||
echo ""
|
||||
echo "Options:"
|
||||
echo " deploy Deploy application to Kubernetes"
|
||||
echo " help Show this help message (default)"
|
||||
echo ""
|
||||
echo "Environment Variables:"
|
||||
echo " KUBECONFIG_DATA Base64 encoded kubeconfig file"
|
||||
echo " KUBERNETES_URL Kubernetes API server URL"
|
||||
echo " KUBERNETES_NAMESPACE Deploy namespace (default: default)"
|
||||
echo " KUBERNETES_INGRESS_HOST Ingress host (default: example.com)"
|
||||
echo ""
|
||||
echo " Container Registry Variables (from ci.sh):"
|
||||
echo " CONTAINER_REGISTRY_URL"
|
||||
echo " CONTAINER_REGISTRY_USERNAME"
|
||||
echo " CONTAINER_REGISTRY_NAMESPACE"
|
||||
echo " CONTAINER_REGISTRY_PASSWORD"
|
||||
echo " CONTAINER_IMAGE_NAME"
|
||||
echo " CONTAINER_IMAGE_TAG"
|
||||
echo ""
|
||||
echo "Examples:"
|
||||
echo " $0 deploy"
|
||||
echo " KUBERNETES_NAMESPACE=production $0 deploy"
|
||||
}
|
||||
|
||||
# Setup Kubernetes configuration
|
||||
setup_kubeconfig() {
|
||||
echo "=========================================="
|
||||
echo "Setting up Kubernetes Configuration"
|
||||
echo "=========================================="
|
||||
|
||||
# Check if KUBECONFIG_DATA is provided
|
||||
if [ -z "$KUBECONFIG_DATA" ]; then
|
||||
echo "Warning: KUBECONFIG_DATA not provided, using existing kubectl config"
|
||||
return 0
|
||||
fi
|
||||
|
||||
# Create temporary kubeconfig file from base64 encoded data
|
||||
echo "Decoding kubeconfig..."
|
||||
echo "$KUBECONFIG_DATA" | base64 -d > /tmp/kubeconfig
|
||||
|
||||
# Set KUBECONFIG environment variable to use the temporary file
|
||||
export KUBECONFIG=/tmp/kubeconfig
|
||||
|
||||
echo "✓ Kubeconfig configured"
|
||||
echo ""
|
||||
}
|
||||
|
||||
# Create Docker registry secret for pulling private images
|
||||
create_registry_secret() {
|
||||
echo "=========================================="
|
||||
echo "Creating Docker Registry Secret"
|
||||
echo "=========================================="
|
||||
|
||||
# Create or update the docker registry secret in the namespace
|
||||
kubectl create secret docker-registry regcred \
|
||||
--docker-server="${CONTAINER_REGISTRY_URL}" \
|
||||
--docker-username="${CONTAINER_REGISTRY_USERNAME}" \
|
||||
--docker-password="${CONTAINER_REGISTRY_PASSWORD}" \
|
||||
--namespace="${KUBERNETES_NAMESPACE}" \
|
||||
--dry-run=client -o yaml | kubectl apply -f -
|
||||
|
||||
if [ $? -eq 0 ]; then
|
||||
echo "✓ Registry secret created/updated"
|
||||
echo ""
|
||||
else
|
||||
echo "✗ Failed to create registry secret"
|
||||
exit 1
|
||||
fi
|
||||
}
|
||||
|
||||
# Deploy application to Kubernetes
|
||||
deploy_application() {
|
||||
# Construct the full image name
|
||||
FULL_IMAGE_NAME="${CONTAINER_REGISTRY_URL}/${CONTAINER_REGISTRY_NAMESPACE}/${CONTAINER_IMAGE_NAME}:${CONTAINER_IMAGE_TAG}"
|
||||
|
||||
echo "=========================================="
|
||||
echo "Deploying Application to Kubernetes"
|
||||
echo "=========================================="
|
||||
echo "Namespace: ${KUBERNETES_NAMESPACE}"
|
||||
echo "Image: ${FULL_IMAGE_NAME}"
|
||||
echo "Ingress Host: ${KUBERNETES_INGRESS_HOST}"
|
||||
echo ""
|
||||
|
||||
# Setup kubeconfig
|
||||
setup_kubeconfig
|
||||
|
||||
# Test kubectl connection
|
||||
echo "Testing Kubernetes connection..."
|
||||
kubectl cluster-info > /dev/null 2>&1
|
||||
if [ $? -ne 0 ]; then
|
||||
echo "✗ Failed to connect to Kubernetes cluster"
|
||||
exit 1
|
||||
fi
|
||||
echo "✓ Connected to Kubernetes cluster"
|
||||
echo ""
|
||||
|
||||
# Create namespace if it doesn't exist
|
||||
echo "Creating namespace..."
|
||||
kubectl apply -f script/k8s/namespace.yaml
|
||||
echo ""
|
||||
|
||||
# Create registry secret for pulling images
|
||||
create_registry_secret
|
||||
|
||||
# Export environment variables for envsubst (template substitution)
|
||||
export KUBERNETES_NAMESPACE
|
||||
export KUBERNETES_INGRESS_HOST
|
||||
export FULL_IMAGE_NAME
|
||||
|
||||
# Apply Kubernetes manifests with environment variable substitution
|
||||
echo "Applying Kubernetes manifests..."
|
||||
|
||||
# Apply deployment
|
||||
echo "- Applying deployment..."
|
||||
envsubst < script/k8s/deployment.yaml | kubectl apply -f -
|
||||
|
||||
# Apply service
|
||||
echo "- Applying service..."
|
||||
envsubst < script/k8s/service.yaml | kubectl apply -f -
|
||||
|
||||
# Apply ingress
|
||||
echo "- Applying ingress..."
|
||||
envsubst < script/k8s/ingress.yaml | kubectl apply -f -
|
||||
|
||||
echo ""
|
||||
|
||||
# Wait for deployment to be ready
|
||||
echo "Waiting for deployment to be ready..."
|
||||
kubectl rollout status deployment/${CONTAINER_IMAGE_NAME} \
|
||||
-n ${KUBERNETES_NAMESPACE} \
|
||||
--timeout=300s
|
||||
|
||||
if [ $? -eq 0 ]; then
|
||||
echo ""
|
||||
echo "=========================================="
|
||||
echo "✓ Deployment Successful!"
|
||||
echo "=========================================="
|
||||
echo "Application: ${CONTAINER_IMAGE_NAME}"
|
||||
echo "Namespace: ${KUBERNETES_NAMESPACE}"
|
||||
echo "URL: http://${KUBERNETES_INGRESS_HOST}"
|
||||
echo ""
|
||||
|
||||
# Show pod status
|
||||
echo "Pod Status:"
|
||||
kubectl get pods -n ${KUBERNETES_NAMESPACE} -l app=${CONTAINER_IMAGE_NAME}
|
||||
echo ""
|
||||
|
||||
# Show service status
|
||||
echo "Service Status:"
|
||||
kubectl get svc -n ${KUBERNETES_NAMESPACE} -l app=${CONTAINER_IMAGE_NAME}
|
||||
echo ""
|
||||
|
||||
# Show ingress status
|
||||
echo "Ingress Status:"
|
||||
kubectl get ingress -n ${KUBERNETES_NAMESPACE}
|
||||
else
|
||||
echo ""
|
||||
echo "✗ Deployment failed or timed out"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Cleanup temporary kubeconfig if it was created
|
||||
if [ -f /tmp/kubeconfig ]; then
|
||||
rm -f /tmp/kubeconfig
|
||||
fi
|
||||
}
|
||||
|
||||
# =============================================================================
|
||||
# Main Script Logic
|
||||
# =============================================================================
|
||||
|
||||
# If no arguments provided, show help
|
||||
if [ $# -eq 0 ]; then
|
||||
print_help
|
||||
exit 0
|
||||
fi
|
||||
|
||||
# Process command line arguments
|
||||
case "$1" in
|
||||
deploy)
|
||||
deploy_application
|
||||
;;
|
||||
help|--help|-h)
|
||||
print_help
|
||||
;;
|
||||
*)
|
||||
echo "Error: Unknown option '$1'"
|
||||
echo ""
|
||||
print_help
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
Reference in New Issue
Block a user