How do I use Docker secrets in my application?

How do I use Docker secrets in my application?

Docker secrets are used to manage sensitive data, like passwords or API keys, securely in your applications. You can create a secret using the command docker secret create <secret_name> <file>, and then reference it in your services.

Can you show me an example of creating a secret?

Sure! First, create a file with your secret data, then run docker secret create my_secret ./my_secret_file.txt. This will create a secret named 'my_secret'.

How do I access this secret in my Docker container?

You can access the secret in your container by mounting it as a file. In your service definition, use secrets to specify the secret, and it will be available at /run/secrets/my_secret.

Is there a way to update a secret after it's created?

Yes, you can update a secret by creating a new version of it and updating the service to use the new secret. Docker does not allow direct modification of existing secrets.