Symptoms The /auth
endpoint responds with an empty token ( { "token": "" } ) even when the credentials are correct.
Cause
Elastic Beanstalk replaces EC2 instances on every deployment, france telegram data removing manually generated JWT keys, preventing token signing.
Solution
Automate the generation of JWT keys:
1. Create a predeployment script
In .platform/hooks/predeploy/ , create 01_generate_jwt_keys.sh:
#!/bin/bash
echo "Generating JWT keys..."
php bin/console lexik:jwt:generate-keypair --overwrite --env=prod
echo "JWT keys generated successfully."
2. Give execution permissions to the script
chmod +x .platform/hooks/predeploy/01_generate_jwt_keys.sh
3. Validate keys after deployment
Confirm the existence of private.pem and public.pem in config/jwt/ : ls -l config/jwt/
4. Test the endpoint
Verify that /auth generates a valid token: curl -X POST http://<your-domain>/auth \ -H "Content-Type: application/json" \ -d '{"email": "[email protected]", "password": "password"}'
Result
With this hook, JWT keys are automatically generated on every deployment, ensuring that the authentication system works correctly.
Conclusion
Deploying Symfony applications on AWS Elastic Beanstalk may seem challenging at first, but with proper configuration and an automated approach, major hurdles can be effectively overcome. Throughout this article, we have identified and resolved common issues such as URL rewriting with Nginx and persistent JWT key generation – two critical pillars to ensure that the application runs without interruptions in production.
Automation stands out as an essential component to manage consistent deployments and reduce manual errors. Pre - deployment hooks and proper configuration of persistent files allow aligning the environment with Symfony's specific needs, such as the use of the public/ directory and the management of friendly routes.
For developers looking to implement Symfony on Elastic Beanstalk, I recommend:
Automate key configurations : From JWT key generation to route management, automated scripts minimize recurring issues.
Verify and validate configurations : Make sure to review the logs and validate that the applied configurations are as expected after each deployment.
Maintain clear documentation : A detailed record of configurations and scripts makes it easier to troubleshoot problems and implement future updates.
With these practices, Elastic Beanstalk can become a reliable environment for Symfony applications, offering scalability, robustness, and efficiency. AWS Elastic Beanstalk not only simplifies infrastructure management, but with proper preparation, it becomes a strategic ally for developing modern and scalable applications in the cloud.
Have you faced any similar challenges when deploying Symfony or other applications on AWS Elastic Beanstalk? Share your experiences or solutions in the comments – we’d love to hear your approaches and learnings!
Sources :
AWS Elastic Beanstalk Documentation
Symfony Documentation
GitHub - lexik/LexikJWTAuthenticationBundle: JWT authentication for your Symfony API
Symfony app on Elastic beanstalk shows 404 in all routes except "/" - Stack Overflow
ITDO Blog - Web Development Agency, Apps and Marketing in Barcelona
nginx documentation