CODE EXAMPLE FOR SHELL

Error response from daemon: Get "https://registry-1.docker.io/v2/": dial tcp: lookup registry-1.docker.io: device or resource busy

#I had similar issue on Ubuntu 16.04 and manage to solve it by adding more nameservers
#Open config file sudo nano /etc/resolv.conf and add the following under existing nameservers

nameserver 8.8.8.8
nameserver 8.8.4.4

#run following commands to restart daemon and docker service

sudo systemctl daemon-reload
sudo systemctl restart docker

#Now try to pull image you want docker pull sonarqube