Unable to pull image - Unauthorized access to gitlab registry | Nomad

Hi, i try to use waypoint workflow with nomad .
I used gitlab registry to store my images.
During waypoint release stage nomad is unable to pull image from gitlab.

nomad alloc status 36ea4c44

API error (500): Head “https://registry.gitlab.com/v2/xxxx”: unauthorized: HTTP Basic: Access denied

in file /root/.docker/config.json

“auths”: {
registry.gitlab.com”: {
“auth”: “xxxxxxxxxxxxxxxxxxxxxxx=”

in /etc/nomad.d/nomad.json file

“docker”: [{
“config”: [{
“auth”: [{
“config”: “/root/.docker/config.json”