Here are some links to external sources:
- Apply rolling updates to a service at https://dockr.ly/2HfGjlD
- Manage sensitive data with Docker secrets at https://dockr.ly/2vUNbuH
- Introducing Docker secrets management at https://dockr.ly/2k7zwzE
- From env variables to Docker secrets at https://bit.ly/2GY3UUB