WSL2 Dockerfile not building - DNS problems

Question

I´m using WSL2 on Windows with Ubuntu, I had problems with PIP, it gave me DNS problems, so I modified the file /ect/resolve.conf , after this I was able to use PIP, but still I have problems with the Dockerfile.

when using docker build, and trying to use pip install requirements.txt, it tries to download the packages from the requirements file and got DNS problems.

so, how can I add DNS servernames to the Dockerfile? or how can I solve this issue?

Regards.

Answer 1

I have a similar issue, some domains can't be resolved during docker build. Here is the content of the /etc/resolv.conf from one of my built images:

• cat /etc/resolv.conf

# DNS requests are forwarded to the host. DHCP DNS options are ignored.
nameserver 192.168.65.7

I couldn't find this IP either in my Windows 10 or in my Ubuntu WSL2 :o