What is the difference between Docker environment variables and secrets?
Docker environment variables are used to pass configuration data to containers, while secrets are specifically designed to manage sensitive information securely.
Can you give me an example of when to use secrets instead of environment variables?
Sure! Use secrets for sensitive data like API keys or passwords, while environment variables are suitable for non-sensitive configuration.
How do I create a secret in Docker?
You can create a secret in Docker using the command docker secret create <secret_name> <file>
, where <file>
contains the secret data.
Are there any limitations on using secrets?
Yes, secrets can only be used in swarm mode and are limited to services, not standalone containers.
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