Can't install pip packages inside a docker container with Ubuntu

Question

I\'m following the fig guide to using docker with a python application, but when docker gets up to the command

RUN pip install -r requirements.txt
         


        

Answer 1

Configuring docker DNS to Google DNS (8.8.8.8) or 10.0.0.2 did not work in my company environment.

Running: $ drill @8.8.8.8 www.amazon.com or @10.0.0.2 confirmed this.

In order to find a DNS that would work I ran: $ drill www.amazon.com and it gave me the DNS IP that is being used in my network.

Then I set it in Ubuntu using the following step to configure docker's DNS.

Changed dns in /etc/docker/daemon.json

{
    "dns": ["the DNS ip from step1"]
}

Restart docker: sudo service docker restart