How to Use Docker Secrets for Secure Data Management

Docker Secrets is a secure way to manage sensitive data such as passwords, API keys, and certificates. This article covers how to use Docker Secrets.

Creating a Secret

Create a secret from a file:

echo "my_secret_password" | docker secret create my_secret -

Using a Secret in a Service

Deploy a service using the secret:

docker service create --name my_service --secret my_secret nginx

Accessing Secrets in a Container

Inside the running container, secrets are accessible as files in the /run/secrets directory.

Managing Secrets

List all secrets:

docker secret ls

Remove a secret:

docker secret rm my_secret

Conclusion

Docker Secrets provides a secure way to manage and use sensitive data in your Docker services, ensuring data confidentiality and integrity.