feat: add Docker deployment with HAProxy and blue-green strategy

deploy/scripts/deploy-blue-green.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+set -euo pipefail
+
+# Blue-Green deployment script for Nuxt app
+# Usage: ./deploy-blue-green.sh
+
+# Source common functions
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "${SCRIPT_DIR}/common-lib.sh"
+
+# Validate required environment variables
+require_var "DOCKER_HOST"
+require_var "REPO_PROJECT_PATH"
+require_var "REPO_NAME_ONLY"
+require_var "REPO"
+require_var "IMAGE_TAR"
+require_var "PROD"
+require_var "DOMAIN"
+require_var "WIREGUARD_ENDPOINT_HOST"
+
+validate_deployment_env
+
+# Modify project path based on environment for proper isolation
+if [ "$PROD" = "true" ]; then
+    REPO_PROJECT_PATH="${REPO_PROJECT_PATH}-prod"
+    echo "🏭 Production deployment path: $REPO_PROJECT_PATH"
+else
+    REPO_PROJECT_PATH="${REPO_PROJECT_PATH}-staging"
+    echo "🧪 Staging deployment path: $REPO_PROJECT_PATH"
+fi
+
+# Update derived paths
+CURRENT_LINK_PATH="${REPO_PROJECT_PATH}/current"
+RELEASES_PATH="${REPO_PROJECT_PATH}/releases"
+
+echo "⚙️ Docker host: $DOCKER_HOST"
+
+# Generate deployment timestamp
+DEPLOYMENT_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+RELEASE_TYPE=$([ "${PROD}" = "true" ] && echo "prod" || echo "staging")
+NEW_RELEASE_PATH="${RELEASES_PATH}/${DEPLOYMENT_TIMESTAMP}"
+
+# Use Git SHA for image tag (if available, otherwise use timestamp)
+if [ -n "${GIT_SHA:-}" ]; then
+    IMAGE_TAG="sha-${GIT_SHA:0:7}"
+else
+    IMAGE_TAG="dev-${DEPLOYMENT_TIMESTAMP}"
+fi
+
+# Check for deployment in progress
+if is_deployment_in_progress; then
+    echo "⚠️ ERROR: Deployment appears to be in progress (both colors are running)"
+    echo "   This might indicate a previous deployment didn't complete properly."
+    echo "   Please check the deployment status and clean up any old containers."
+    echo "   If you are sure that the deployment is complete, you can run the following command to clean up the old containers:"
+    echo "   ssh deploy 'cd ${REPO_PROJECT_PATH}/current && docker compose -p portfolio-\$ENV-blue down && docker compose -p portfolio-\$ENV-green down' (where \$ENV is prod or staging)"
+    exit 1
+fi
+
+CURRENT_COLOR=$(get_current_color)
+NEW_COLOR=$(switch_color "$CURRENT_COLOR")
+
+echo "🎨 Current deployment color: $CURRENT_COLOR"
+echo "🎨 New deployment color: $NEW_COLOR"
+
+echo "🔍 Resolving WIREGUARD_ENDPOINT_HOST IP address..."
+WIREGUARD_ENDPOINT_IP=$(run_on_target "dig +short $WIREGUARD_ENDPOINT_HOST | tail -n1")
+[ -z "$WIREGUARD_ENDPOINT_IP" ] && error_exit "Failed to resolve IP address for WIREGUARD_ENDPOINT_HOST"
+
+echo "📁 Creating release directory..."
+run_on_target "mkdir -p '${NEW_RELEASE_PATH}'"
+
+echo "🏷️ Setting environment variables..."
+echo "IMAGE_TAG=\"${IMAGE_TAG}\"" >> .env
+echo "DEPLOYMENT_COLOR=\"${NEW_COLOR}\"" >> .env
+echo "RELEASE_TYPE=\"${RELEASE_TYPE}\"" >> .env
+echo "WIREGUARD_ENDPOINT_IP=\"${WIREGUARD_ENDPOINT_IP}\"" >> .env
+
+echo "📋 Copying deployment files..."
+scp deploy/docker-compose.yml deploy/haproxy.cfg .env deploy:"${NEW_RELEASE_PATH}/"
+
+echo "🐳 Loading Docker image..."
+docker load -i "${IMAGE_TAR}"
+
+PROJECT_NAME=$(get_project_name "$NEW_COLOR")
+WEB_SERVICE_NAME=$(get_web_service_name)
+
+echo "🔵🟢 Starting ${NEW_COLOR} deployment..."
+run_on_target "cd '${NEW_RELEASE_PATH}' && docker compose -p '${PROJECT_NAME}' up --no-build -d"
+
+echo "⏳ Waiting for new containers to be healthy..."
+if ! wait_for_healthy_containers "$PROJECT_NAME" "$WEB_SERVICE_NAME" 1; then
+    echo "❌ New deployment failed to become healthy. Rolling back..."
+    run_on_target "cd '${NEW_RELEASE_PATH}' && docker compose -p '${PROJECT_NAME}' down"
+    run_on_target "rm -rf '${NEW_RELEASE_PATH}'"
+    error_exit "New deployment failed to become healthy"
+fi
+
+echo "✅ New deployment is healthy!"
+
+echo "🔗 Updating current deployment symlink..."
+if [ -L "$CURRENT_LINK_PATH" ]; then
+    PREVIOUS_RELEASE=$(run_on_target "readlink -f '${CURRENT_LINK_PATH}'")
+    run_on_target "echo '${PREVIOUS_RELEASE}' > '${NEW_RELEASE_PATH}/.previous_version'"
+fi
+
+run_on_target "ln -sfn '${NEW_RELEASE_PATH}' '${CURRENT_LINK_PATH}'"
+
+if [ "$CURRENT_COLOR" != "none" ]; then
+    echo "🧹 Cleaning up previous deployment (${CURRENT_COLOR})..."
+    cleanup_color_containers "$CURRENT_COLOR"
+fi
+
+echo "🗑️ Cleaning up old releases (keep last 5)..."
+run_on_target "cd '${RELEASES_PATH}' && ls -t | tail -n +6 | xargs -r rm -rf"
+
+echo "🎉 Deployment completed successfully!"
+echo "📊 Current deployment: ${NEW_COLOR} (${IMAGE_TAG})"
+echo "🌍 Domain: ${DOMAIN}"