[jve]

Few days ago, I spent quite a few hours trying to make `apk update` work for alpine on WSL2 on Windows. It didn't want to resolve dl-cdn.alpinelinux.org within alpine. Did resolve on host ubuntu.

1. WFH from VPN, firstly I had to lower mtu from 1500 to 1392 (My VPN specific issue) https://github.com/microsoft/WSL/issues/4698

2. Next, I had to run some powershell script that updates /etc/resolv.conf to use my VPN DNS (WSL specific stuff) https://github.com/microsoft/WSL/issues/1350

3. And I still don't know if apk works properly. Kind of works in Docker build, but I have a feeling something not quite right.

See this example. Why does it "hang"? Docker command not exiting

  docker run -it alpine:3.15 apk update
  fetch https://dl-cdn.alpinelinux.org/alpine/v3.15/main/x86_64/APKINDEX.tar.gz

Now, doing it within container itself, works:

  docker run -it alpine:3.15 sh
  / # apk update
  fetch https://dl-cdn.alpinelinux.org/alpine/v3.15/main/x86_64/APKINDEX.tar.gz
  fetch https://dl- 
  cdn.alpinelinux.org/alpine/v3.15/community/x86_64/APKINDEX.tar.gz
  v3.15.0-342-g4fee739486 [https://dl-cdn.alpinelinux.org/alpine/v3.15/main]
  v3.15.0-340-g4ed6115e99 [https://dl-cdn.alpinelinux.org/alpine/v3.15/community]
  OK: 15859 distinct packages available
  / # exit

Can someone shed some light?

[newman314]

Is DNS set in /etc/docker/daemon.json?