Could not resolve host in docker

Question

I\'m trying to do an jenkins on docker, on my machine (Ubuntu).

I have to access to the git repo, in my company. But in jenkins, I get this error :

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Answer 1

The DNS was wrong. (--dns=127.0.1.1)

This DNS server, is an internal DNS, Dnsmasq, it's a DNS forwarder.

So I needed to know the real internal DNS server :

nmcli dev show | grep DNS

And add the right address (10.0.1.1 in my case) :

sudo docker run -p 8080:8080 -p 50000:50000 -v /home/xero/jenkins:/var/jenkins_home --name=myproject-jenkins2 --dns=10.0.1.1 jenkins