I'm looking to create a development environment on my local network where I can work on projects using Go and Python. I have a few machines running different operating systems: MacOS, Windows 10 and 11, and Linux (Ubuntu, Raspbian). My main goal is to set up a private Docker registry on my Synology DS918+ to push my code and run Docker images both on the Synology itself and on my other machines. I want to learn how to deploy applications across multiple platforms using Docker while keeping it all within my local network.
I use Mikrotik hardware for my LAN, which might be relevant for setup considerations.
Here are my specific questions:
1. How do I set up a private Docker registry on my Synology DS918+ so that it's secure and doesn't expose anything outside my local network?
2. What common pitfalls should I avoid when setting up the registry to manage my resources efficiently?
I'm relatively new to the concept of a private Docker registry, as I've mostly used public ones before.
1 Answer
Setting up a private Docker registry is quite straightforward! You just need to install the Container Management Package on your Synology NAS. After that, you can run the registry by searching for `registry:2` on Docker Hub and creating a container with port mapping set to 5000:5000. Don't forget to enable insecure registries in your configuration to allow your local network to access it. For example, add this to your Docker configuration:
```
{
"insecure-registries": ["nas.lan:5000"]
}
```
Keep in mind that this setup doesn't include built-in authentication, which should be fine for local use but consider adding security if you expand.
Why do some folks get a NAS without knowing how to use it? It's not that hard!
I agree with you! Just a heads up though, you might want to use version 3 of the registry—it was just released!

Haha, guess we’ve got ourselves a Synology help desk here!