Merge pull request #905 from dangdangwalk/backend/DANG-1271

backend/DANG-1271: 백엔드 배포 스크립트 run_backend.sh 리팩토링

.github/script/run_backend.sh

@@ -0,0 +1,176 @@
+#!/bin/bash
+
+# Constants
+readonly ROOT_PATH=${ROOT_PATH:-"/home/ubuntu/actions-runner/_work/dangdang-walk/dangdang-walk/backend/server"}
+readonly HEALTH_CHECK_MAX_RETRIES=${HEALTH_CHECK_MAX_RETRIES:-10}
+readonly HEALTH_CHECK_INTERVAL=${HEALTH_CHECK_INTERVAL:-3}
+readonly CONTAINER_INTERNAL_PORT=3031
+readonly BLUE_EXTERNAL_PORT=3032
+readonly GREEN_EXTERNAL_PORT=3031
+
+# Variables
+TAG=$1
+ENV_FILE=$2
+REPO=$3
+IMAGE=$4
+
+CONTAINER_IMAGE="$REPO/$IMAGE:$TAG"
+ENV_FILE_PATH="$ROOT_PATH/$ENV_FILE"
+
+# Logger Functions
+log_debug() { echo -e "\033[1;36m[DEBUG]\033[0m $1"; }
+log_info() { echo -e "\033[1;34m[INFO]\033[0m $1"; }
+log_success() { echo -e "\033[1;32m[SUCCESS]\033[0m $1"; }
+log_error() { echo -e "\033[1;31m[ERROR]\033[0m $1" >&2; }
+
+# Input Validation
+validate_deployment_args() {
+  local required_vars=("TAG" "ENV_FILE" "REPO" "IMAGE")
+
+  for var in "${required_vars[@]}"; do
+    if [ -z "${!var}" ]; then
+      log_error "Required variable $var is not set"
+      exit 1
+    fi
+  done
+
+  # Check if ENV file exists and has read permissions
+  if [ ! -f "$ENV_FILE_PATH" ]; then
+    log_error "Environment file not found: $ENV_FILE_PATH"
+    exit 1
+  fi
+
+  if [ ! -r "$ENV_FILE_PATH" ]; then
+    log_error "Environment file is not readable: $ENV_FILE_PATH"
+    exit 1
+  fi
+
+  log_info "Deployment arguments validated."
+}
+
+# AWS ECR Authentication
+authenticate_to_ecr() {
+  log_info "Authenticating with AWS ECR..."
+
+  local aws_login_password
+  if ! aws_login_password=$(aws ecr get-login-password --region ap-northeast-2); then
+    log_error "Failed to get AWS ECR login password"
+    exit 1
+  fi
+
+  if ! echo "$aws_login_password" | docker login --username AWS --password-stdin "$REPO"; then
+    log_error "Failed to authenticate with AWS ECR"
+    exit 1
+  fi
+
+  log_success "Successfully authenticated with AWS ECR"
+}
+
+# Docker Container Management
+cleanup_container() {
+  local container_name=$1
+  log_info "Cleaning up container: $container_name"
+  docker stop "$container_name" 2>/dev/null && docker rm "$container_name" 2>/dev/null
+}
+
+deploy_new_container() {
+  local container_name=$1
+  local port=$2
+  log_info "Deploying container: $container_name on port: $port"
+  docker run -d \
+    --name "$container_name" \
+    --restart always \
+    -p "$port":"$CONTAINER_INTERNAL_PORT" \
+    --env-file "$ENV_FILE_PATH" \
+    -v logs:/app/log \
+    "$CONTAINER_IMAGE"
+  verify_container_health "$port"
+}
+
+verify_container_health() {
+  local port=$1
+  local retries=0
+
+  log_info "Verifying container health on port: $port"
+
+  while [ $retries -lt $HEALTH_CHECK_MAX_RETRIES ]; do
+    sleep $HEALTH_CHECK_INTERVAL
+    if curl -s http://localhost:"$port" > /dev/null; then
+      log_success "Container health check passed on port: $port"
+      return 0
+    fi
+    retries=$((retries + 1))
+    log_info "Retrying health check... ($retries/$HEALTH_CHECK_MAX_RETRIES)"
+  done
+
+  log_error "Health check failed after $HEALTH_CHECK_MAX_RETRIES attempts."
+  exit 1
+}
+
+perform_deployment() {
+  local container_name=$1
+  local port=$2
+
+  log_info "Starting deployment for $container_name on port $port..."
+
+  cleanup_container "$container_name"
+
+  if ! docker pull "$CONTAINER_IMAGE"; then
+    log_error "Failed to pull container image: $CONTAINER_IMAGE"
+    exit 1
+  fi
+
+  deploy_new_container "$container_name" "$port"
+}
+
+reload_nginx() {
+  log_info "Reloading Nginx..."
+  if ! sudo nginx -s reload; then
+    log_error "Failed to reload Nginx."
+    exit 1
+  fi
+  log_success "Nginx reloaded successfully."
+}
+
+# Blue-Green Deployment Functions
+activate_blue_deployment() {
+  perform_deployment "dangdang-api-blue" $BLUE_EXTERNAL_PORT
+  reload_nginx
+  cleanup_container "dangdang-api-green"
+}
+
+activate_green_deployment() {
+  perform_deployment "dangdang-api-green" $GREEN_EXTERNAL_PORT
+  reload_nginx
+  cleanup_container "dangdang-api-blue"
+}
+
+# Main Execution
+main() {
+  log_debug "Target Container Image: $CONTAINER_IMAGE"
+  log_debug "Environment File Path: $ENV_FILE_PATH"
+
+  validate_deployment_args
+  authenticate_to_ecr
+
+  log_info "Checking deployment status..."
+  BLUE_CONTAINER_STATUS=$(docker inspect -f '{{.State.Status}}' dangdang-api-blue 2>/dev/null)
+  GREEN_CONTAINER_STATUS=$(docker inspect -f '{{.State.Status}}' dangdang-api-green 2>/dev/null)
+
+  if [ "$BLUE_CONTAINER_STATUS" == "running" ]; then
+    log_info "Blue container is running - Switching to Green container..."
+    activate_green_deployment
+  elif [ "$GREEN_CONTAINER_STATUS" == "running" ]; then
+    log_info "Green container is running - Switching to Blue container..."
+    activate_blue_deployment
+  else
+    log_info "No active deployment found - Initiating Blue deployment..."
+    activate_blue_deployment
+  fi
+
+  log_info "Cleaning up unused Docker images..."
+  docker image prune -af
+  log_success "Deployment completed successfully!"
+}
+
+main