Initial commit.
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186
bin/generate-service
Executable file
186
bin/generate-service
Executable file
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#!/bin/bash
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set -e
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# Source environment variables for defaults and domain settings
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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if [ -f "$SCRIPT_DIR/../load-env.sh" ]; then
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source "$SCRIPT_DIR/../load-env.sh"
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fi
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# Default values
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SERVICE_TYPE=""
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SERVICE_NAME=""
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NAMESPACE=""
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IMAGE=""
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PORT=""
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SERVICE_DOMAIN=""
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OUTPUT_DIR=""
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function show_help {
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echo "Usage: $0 --type [public|internal|database|microservice] --name SERVICE_NAME [options]"
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echo ""
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echo "Required arguments:"
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echo " --type TYPE Service type (public, internal, database, or microservice)"
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echo " --name NAME Service name"
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echo ""
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echo "Optional arguments:"
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echo " --namespace NAMESPACE Kubernetes namespace (defaults to service name)"
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echo " --image IMAGE Container image (defaults to nginx:latest for most types)"
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echo " --port PORT Container port (defaults to 80)"
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echo " --domain DOMAIN Custom domain (defaults to TYPE-specific domain)"
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echo " --output DIR Output directory (defaults to services/NAME)"
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echo " --help Show this help message"
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echo ""
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echo "Examples:"
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echo " $0 --type public --name blog"
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echo " $0 --type internal --name admin --image my-admin:v1 --port 8080"
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echo " $0 --type database --name mysql --image mysql:8.0 --port 3306"
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echo " $0 --type microservice --name auth --image auth-service:v1 --port 9000"
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exit 1
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}
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while [[ $# -gt 0 ]]; do
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key="$1"
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case $key in
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--type)
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SERVICE_TYPE="$2"
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shift 2
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;;
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--name)
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SERVICE_NAME="$2"
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shift 2
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;;
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--namespace)
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NAMESPACE="$2"
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shift 2
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;;
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--image)
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IMAGE="$2"
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shift 2
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;;
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--port)
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PORT="$2"
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shift 2
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;;
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--domain)
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SERVICE_DOMAIN="$2"
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shift 2
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;;
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--output)
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OUTPUT_DIR="$2"
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shift 2
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;;
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--help)
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show_help
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;;
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*)
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echo "Unknown option: $1"
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show_help
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;;
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esac
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done
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# Validate required parameters
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if [[ -z "$SERVICE_TYPE" ]]; then
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echo "Error: Service type is required"
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show_help
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fi
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if [[ -z "$SERVICE_NAME" ]]; then
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echo "Error: Service name is required"
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show_help
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fi
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# Validate service type
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if [[ "$SERVICE_TYPE" != "public" && "$SERVICE_TYPE" != "internal" && "$SERVICE_TYPE" != "database" && "$SERVICE_TYPE" != "microservice" ]]; then
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echo "Error: Invalid service type. Must be public, internal, database, or microservice."
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show_help
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fi
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# Set defaults
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if [[ -z "$NAMESPACE" ]]; then
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NAMESPACE="$SERVICE_NAME"
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fi
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if [[ -z "$IMAGE" ]]; then
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if [[ "$SERVICE_TYPE" == "database" ]]; then
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IMAGE="mariadb:10.6"
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else
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IMAGE="nginx:latest"
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fi
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fi
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if [[ -z "$PORT" ]]; then
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if [[ "$SERVICE_TYPE" == "database" ]]; then
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PORT="3306"
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else
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PORT="80"
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fi
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fi
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if [[ -z "$SERVICE_DOMAIN" ]]; then
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if [[ "$SERVICE_TYPE" == "public" ]]; then
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SERVICE_DOMAIN="\${SERVICE_NAME}.\${DOMAIN}"
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elif [[ "$SERVICE_TYPE" == "internal" ]]; then
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SERVICE_DOMAIN="\${SERVICE_NAME}.internal.\${DOMAIN}"
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elif [[ "$SERVICE_TYPE" == "microservice" ]]; then
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SERVICE_DOMAIN="\${SERVICE_NAME}.svc.\${DOMAIN}"
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else
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SERVICE_DOMAIN="\${SERVICE_NAME}.db.\${DOMAIN}"
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fi
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fi
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# Set default output directory if not provided
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if [[ -z "$OUTPUT_DIR" ]]; then
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OUTPUT_DIR="$SCRIPT_DIR/../services/$SERVICE_NAME"
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fi
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echo "Generating $SERVICE_TYPE service configuration for: $SERVICE_NAME"
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echo "Namespace: $NAMESPACE"
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echo "Image: $IMAGE"
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echo "Port: $PORT"
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echo "Domain Template: $SERVICE_DOMAIN"
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echo "Output Directory: $OUTPUT_DIR"
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echo
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# Get the appropriate template
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if [[ "$SERVICE_TYPE" == "microservice" ]]; then
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TEMPLATE_FILE="$SCRIPT_DIR/../services/templates/microservice/service.yaml"
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else
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TEMPLATE_FILE="$SCRIPT_DIR/../services/templates/${SERVICE_TYPE}-service/service.yaml"
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fi
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if [[ ! -f "$TEMPLATE_FILE" ]]; then
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echo "Error: Template file not found: $TEMPLATE_FILE"
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exit 1
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fi
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# Create output directory if it doesn't exist
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mkdir -p "$OUTPUT_DIR"
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# Create the service YAML
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echo "Creating service configuration..."
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# Prepare variables for substitution
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export SERVICE_NAME="$SERVICE_NAME"
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export SERVICE_NAMESPACE="$NAMESPACE"
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export SERVICE_IMAGE="\"$IMAGE\""
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export SERVICE_PORT="$PORT"
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export SERVICE_DOMAIN="$SERVICE_DOMAIN"
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# Process the template with variable substitution
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mkdir -p "$OUTPUT_DIR"
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# Define which variables to replace - only those from command arguments
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VARS_TO_REPLACE='${SERVICE_NAME},${SERVICE_NAMESPACE},${SERVICE_IMAGE},${SERVICE_PORT},${SERVICE_DOMAIN}'
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# Process the template, only substituting the variables from arguments
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cat "$TEMPLATE_FILE" | envsubst "$VARS_TO_REPLACE" > "$OUTPUT_DIR/service.yaml"
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echo "✅ Service configuration generated successfully!"
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echo "Configuration file: $OUTPUT_DIR/service.yaml"
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echo ""
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echo "To deploy this service configuration:"
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echo " ./bin/deploy-service $SERVICE_NAME"
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echo ""
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echo "To customize further, edit the generated file before deployment."
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