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_issuer.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -a
+
+# read environment variables from .env file
+# for value of EMAIL
+
+. .env
+
+
+# Check if EMAIL environment variable is set
+if [ -z "$EMAIL" ]; then
+  echo "Error: EMAIL environment variable is not set."
+  echo "Please set the EMAIL variable and try again."
+  exit 1
+fi
+
+# Get the directory where the script is located
+SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+cd "$SCRIPT_DIR" || { echo "Failed to change directory to $SCRIPT_DIR"; exit 1; }
+# Define the template file path and output file path
+TEMPLATE_FILE="../../k3s/forgejo/issuer.yaml.template"
+OUTPUT_FILE="../../k3s/forgejo/issuer.yaml"
+
+
+# Use envsubst to substitute the EMAIL variable into the template
+envsubst < "$TEMPLATE_FILE" > "$OUTPUT_FILE"
+if [ $? -ne 0 ]; then
+  echo "Error: Failed to substitute variables in the template."
+  exit 1
+fi
+
+echo "Issuer configuration has been created at $OUTPUT_FILE"