Nowadays it’s easy to run pretty much anything in Kubernetes clusters. But what about debugging these services? What if you need to quickly access a service that is normally not exposed to the internet or your intranet and is only accessible from within the cluster? Your service is like:
In this short article, I will demonstrate how to connect to a running Redis instance with an excellent and powerful Redis Commander GUI.
Let’s deploy Redis (skip if you already have it running), from the cloned repository deploy it:
It will create:
Now, install our tunnel based ingress controller into your cluster:
You can check whether it’s running by:
redis-commander.yaml in your favorite code editor (mine is VSCode :) and edit several details.
If you are on a free tier, unfortunately, you won’t be able to choose a subdomain for your tunnel so you will need to create one first. Also, if you have chosen some different name for your Redis service, then update
REDIS_HOSTS environment variable.
To create a tunnel, run:
2p4ptkh9vutgm8tqavigja.webrelay.io into the last, ingress section and to replace
[REPLACE THIS WITH YOUR TUNNEL NAME]
Once you have finished editing, create it:
It should now be accessible from your browser:
Cool, yeah? Good luck with your other experiments!
To wrap up, the same strategy can be applied to other services like Prometheus or Grafana. You can create tunnels only when you need them, for example, while Grafana can always be connected, you would only want to have a look at Prometheus when you are not sure if service discovery is missing something or want to use raw queries.