Attempting to download Katalon image from docker hub.
I have Docker running and managed to pull other images such as Ubuntu.
In cmd dialog I run “docker pull katalonstudio/katalon”.
Image starts downloading, but toward the end I get a message in the cmd interface “unauthorized: authentication required” and download stops.
Any ideas?
[root@xx ~]# docker pull hello-world
Using default tag: latest
Pulling repository docker.io/library/hello-world
Error while pulling image: Get https://index.docker.io/v1/repositories/library/hello-world/images: authenticationrequired
earlier i have set docker proxy in file /etc/systemd/system/docker.service.d/https-proxy.conf
#[Service]
#Environment=“HTTPS_PROXY=http://xxx:8080/”
then i commented this, and sys-reloaded
#sudo systemctl daemon-reload
#sudo systemctl restart docker
then i tried to pull hello-world and i got it.
or
try with correct username, pswd, proxy address…
sometime docker works with proxy also without proxy 
I hope this helps!
Admin
@amir.shapira
Please try with:
docker pull katalonstudio/katalon:latest
If the unauthorized message shows again, you need to login or add proxy and try again.
I managed to pull image using the “-q” tag