Add Google Cloud K3s infrastructure support

- Add Terraform configuration for GCP instance and storage
- Add startup script for K3s installation and configuration
- Add pipeline scripts for deployment and management
- Add Forgejo deployment manifests and configuration

gcloud/tf/scripts/forgejo/create_ingress.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -a
+
+# read environment variables from .env file
+# for value of APP_DOMAIN_NAME
+
+. .env
+
+if [ -z "$APP_DOMAIN_NAME" ]; then
+  echo "Error: APP_DOMAIN_NAME environment variable is not set. Please set it in the .env file."
+  exit 1
+fi
+
+# Get the directory where the script is located
+SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+cd "$SCRIPT_DIR" || { echo "Failed to change directory to $SCRIPT_DIR"; exit 1; }
+# Define the template file path and output file path
+TEMPLATE_FILE="../../k3s/forgejo/ingress.yaml.template"
+OUTPUT_FILE="../../k3s/forgejo/ingress.yaml"
+
+
+# Use envsubst to substitute the APP_DOMAIN_NAME variable into the template
+envsubst < "$TEMPLATE_FILE" > "$OUTPUT_FILE"
+if [ $? -ne 0 ]; then
+  echo "Error: Failed to substitute variables in the template."
+  exit 1
+fi
+
+echo "Ingress configuration has been created at $OUTPUT_FILE"