certain public URLs not resolving from Alpine image-based pods
We are currently experiencing an issue with Alpine Kubernetes pods. Specifically, URLs associated with '*dap.c-path.org' (customer) are not resolving from Alpine image-based pods. As the application is hosted in an AKS cluster, I reached out to Azure support, they have concluded that the problem is linked to Alpine behavior.
Interestingly, these URLs are resolving correctly from local pods (docker desktop), but they are not functioning within AKS Alpine pods. Also, in the same cluster, Ubuntu pods can handle the resolution without any problems.
Appreciate your assistance in investigating and resolving this matter. I'm happy to provide any information you might need from my side.
ex:
$ ping fair.dapstaging.c-path.org
ping: bad address 'fair.dapstaging.c-path.org'
/ # cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.19.1
PRETTY_NAME="Alpine Linux v3.19"