container env variables for db

Dockerfile

@@ -16,4 +16,7 @@ WORKDIR /app
 
 EXPOSE 8080
 
+ENV POSTGRES_HOST=127.0.0.1
+ENV POSTGRES_PORT=5432
+
 CMD ["gunicorn","--config", "gunicorn_config.py", "app:app"]

podman-commands

@@ -5,4 +5,4 @@ podman pod create --name aliexpress -p 8080:8080
 
 podman run -d --pod=aliexpress -e POSTGRES_DB="aliexpress" -e POSTGRES_USER="postgres" -e POSTGRES_PASSWORD="postgres" -v /home/fire/Downloads/db:/var/lib/postgresql/data --name ali-db docker.io/postgres
 
-podman run -d --pod=aliexpress --name ali-app alipricetrack:1.0.0
+podman run -d --pod=aliexpress -e POSTGRES_DB="aliexpress" -e POSTGRES_USER="postgres" -e POSTGRES_PASSWORD="postgres" --name ali-app alipricetrack:1.0.0

src/app.py

@@ -7,8 +7,17 @@ app = Flask(__name__)
 
 def get_conf():
     '''return settings in settings.yaml file'''
+    settings = dict()
     with open(os.path.dirname(os.path.realpath(__file__))+"/settings.yaml", 'r') as conf_file:
         settings = yaml.safe_load(conf_file)
+    settings["db"] = {
+            "host": os.environ.get('POSTGRES_HOST'),
+            "port": os.environ.get('POSTGRES_PORT'),
+            "database": os.environ.get('POSTGRES_DB'),
+            "user": os.environ.get('POSTGRES_USER'),
+            "password": os.environ.get('POSTGRES_PASSWORD')
+            }
+
     return settings
 
 @app.route('/init')