Decoding Kubernetes Ingress auth Secrets

I figured it would be handy to have a quick reference for this, since I'll probably forget certain secrets many, many times in the future (I'm like that, I guess):

I have a Kubernetes Secret used for Traefik ingress basic HTTP authentication (using annotation, and as an admin with kubectl access, I want to see (or potentially modify) its structure.

Let's say the Secret is in namespace testing, and is named test-credentials. To get the value of the basic auth credentials I do:

kubectl get secret test-credentials -n testing -o yaml

This spits out the Kubernetes object definition, including a field like:

  auth: [redacted base64-encoded string]

So then I copy out that string and decode it:

Fixing '503 Service Unavailable' and 'Endpoints not available' for Traefik Ingress in Kubernetes

In a Kubernetes cluster I'm building, I was quite puzzled when setting up Ingress for one of my applications—in this case, Jenkins.

I had created a Deployment for Jenkins (in the jenkins namespace), and an associated Service, which exposed port 80 on a ClusterIP. Then I added an Ingress resource which directed the URL at the jenkins Service on port 80.

Inspecting both the Service and Ingress resource with kubectl get svc -n jenkins and kubectl get ingress -n jenkins, respectively, showed everything seemed to be configured correctly:

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