Docker is an open source platform that came to life in 2014 and was recently rated the most loved/wanted tool by developers according to a StackExchange survey. But it's not just developer preference. In the last two years, the percentage of enterprises with more than half of their containers running in production has increased by 32% (source).
As teams expand their use of Docker for more and higher priority workloads, managing a growing list of hosts becomes a daunting task.
To improve ease of use and administration, Sonatype Nexus Repository has added subdomain connectors for Docker users. Where normally unique Docker instances are given a separate port number, now they have a standard name.
By default, listings like the one below that must be shared, remembered, and referenced:
| nexus.example.com:1996 | Jenkins |
| nexus.example.com:1997 | Roman |
| nexus.example.com:1998 | Fileserv |
Developers and system administrators alike know how difficult the various port numbers can be difficult to track and maintain. Instead, what if you could make them easy-to-remember named addresses?
| Jenkins.nexus.example.com |
| Roman.nexus.example.com |
| Fileserv.nexus.example.com |
Other benefits include:
Improved scalability for more Docker repositories
Avoid misconfiguration risks and delays
Avoid modifying config files every time you add a new Docker instance, as with a "reverse proxy" setup
Screenshot of Sonatype Nexus Repository with Subdomain Routing enabled
See more detail on this issue and a demonstration of functionality from my.sonatype.com in the video below:
"Have you Heard" Docker Subdomain Routing feature video.
For more information, see the project documentation or our infographic summary:
More on Docker Registry for Sonatype Nexus Repository