The difference between the three versions

There are three versions of docker:

1. docker.io

   debian/ubuntu official version based on docker community source code package, sometimes newer than docker-ce version

   Features docker dependencies directly to the main system

2. docker-ce

   The community version released by docker.com, which only maintains the source code

   Features dependencies wrapped in a package using golang

3. docker-ee

   The commercial version maintained by docker.com, which has three main levels:

   1. Basic: Docker platform for certified infrastructure, supported by Docker Inc. and certified containers and plugins from the Docker Store
   2. Standard: Adds advanced image and container management, LDAP/AD user integration, and role-based access control. Together, these features make up Docker Enterprise Edition
   3. advanced: adds Docker security scanning and continuous vulnerability monitoring

docker-ce has a fatal flaw - dependencies:

1. docker itself depends on hundreds of third-party dependencies
2. theoretically, if one dependency goes wrong, you need to completely recompile docker, otherwise you will get all kinds of hack:joy:
3. In contrast, docker.io hosts the dependencies on the system and only needs to update the main docker application

Update schedule

Starting with Docker 17.03, Docker uses a time-based release schedule:

• docker-ceshould not be used in any product that is expected to run stably
• recommend using docker.io or docker-ee