Temporary failure in name resolution [Errno -3] with Docker

python ubuntu docker pip ubuntu-16.04

I just did sudo service docker restart and it worked after. Definitely worth a shot before jumping in to modify your configurations.

python ubuntu docker pip ubuntu-16.04

I got the same problem with Ubuntu 16.04 and Docker version 17.09.0-ce.I don't think disabling dnsmasq is the right solution.

Here is how I solved it:

For Ubuntu

Edit /etc/default/docker and add your DNS server to the following line:

Example

DOCKER_OPTS="--dns 8.8.8.8 --dns 10.252.252.252"

python ubuntu docker pip ubuntu-16.04

On fedora 32 it was problem with firewall. Following command resolved issue:

$firewall-cmd --permanent --zone=trusted --add-interface=docker0$firewall-cmd --reload

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