10 things to avoid in Docker containers

10 things to avoid in Docker containers provides a handy reminder of what NOT to do when building Docker containers.  Read the full article for details and explanations.  For a brief summary, here are the 10 things:

1. Don’t store data in containers
2. Don’t ship your application in two pieces
3. Don’t create large images
4. Don’t use a single layer image
5. Don’t create images from running containers
6. Don’t use only the “latest” tag
7. Don’t run more than one process in a single container
8. Don’t store credentials in the image. Use environment variables
9. Don’t run processes as a root user
10. Don’t rely on IP addresses