From inside a permits API Pod, resolving the Service name permits-d…

Question

From inside a permits API Pod, resolving the Service name permits-db fails, while the Pod itself is Ready. What is the best next debugging focus?

Accepted Answer

Verify the Service exists in the expected namespace, check DNS/CoreDNS, and test FQDN forms like permits-db.<ns>.svc.cluster.local. — If the app cannot resolve permits-db, treat it like a missing entry in the building directory—confirm the Service exists and try the full cluster DNS name. Memory limits and pull policy will not invent DNS records.

Answer

Increase the Deployment memory limit so CoreDNS automatically registers every Service name.

Answer

Change the Pod’s imagePullPolicy to IfNotPresent to refresh Service DNS caches.

Answer

Replace the ClusterIP Service with a bare Pod IP hardcoded in the Deployment env.

From inside a permits API Pod, resolving the Service name `permits-db` fails, while the Pod itself is Ready. What is the best next debugging focus?

Short Explanation

Full Explanation