feat: 적용 무중단 배포 시스템 (Blue-Green Deployment)

scratch_rewrite.py

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+import yaml
+import copy
+
+with open('docker-compose.yml', 'r') as f:
+    compose = yaml.safe_load(f)
+
+services = compose['services']
+new_services = {}
+
+# Services to duplicate
+app_services = ['gateway', 'tool-sms', 'tool-email', 'tool-other', 'tool-payment']
+
+for name, svc in services.items():
+    if name in app_services:
+        # Create blue
+        blue_svc = copy.deepcopy(svc)
+        if 'ports' in blue_svc:
+            del blue_svc['ports'] # Nginx will handle ports
+        
+        # Update AXHUB_GATEWAY_URL and AXHUB_TOOL_URL to point to blue if they refer to the base name
+        if 'environment' in blue_svc:
+            env = blue_svc['environment']
+            for i, e in enumerate(env):
+                if isinstance(e, str):
+                    env[i] = e.replace('http://gateway:8081', 'http://gateway-blue:8081')
+                    env[i] = env[i].replace(f'http://{name}:', f'http://{name}-blue:')
+
+        new_services[f'{name}-blue'] = blue_svc
+        
+        # Create green
+        green_svc = copy.deepcopy(svc)
+        if 'ports' in green_svc:
+            del green_svc['ports']
+            
+        if 'environment' in green_svc:
+            env = green_svc['environment']
+            for i, e in enumerate(env):
+                if isinstance(e, str):
+                    env[i] = e.replace('http://gateway-blue:8081', 'http://gateway-green:8081') # replace from previous
+                    env[i] = e.replace('http://gateway:8081', 'http://gateway-green:8081')
+                    env[i] = env[i].replace(f'http://{name}:', f'http://{name}-green:')
+
+        new_services[f'{name}-green'] = green_svc
+    else:
+        new_services[name] = svc
+
+# Add nginx
+new_services['nginx'] = {
+    'image': 'nginx:latest',
+    'ports': [
+        '8281:8281',
+        '8282:8282',
+        '8283:8283',
+        '8284:8284',
+        '8285:8285'
+    ],
+    'volumes': [
+        './nginx/conf.d:/etc/nginx/conf.d'
+    ],
+    'depends_on': ['redis']
+}
+
+compose['services'] = new_services
+
+with open('docker-compose.yml', 'w') as f:
+    yaml.dump(compose, f, sort_keys=False, default_flow_style=False)