Troubleshoot Permission Denied

Determine if you are using a Docker group or Dockerroot group by running one of the following on the server engine:
ls -la /var/run/docker.sock
The output from this command will show what user/group is running docker.sock. For example:
srw-rw----. 1 root docker 0 Apr 12 20:32 /var/run/docker.sock
shows that it’s a Docker group and not Dockerroot.
cat /etc/group | grep docker
This command shows if you are running Docker or Dockerroot.
Docker CE installations typically run Docker, while Docker EE installations typically run Dockerroot.
To fix a Docker user, run the following commands on the server engine:
sudo groupadd docker
sudo usermod -aG docker demisto
sudo systemctl docker restart
sudo systemctl restart d1
To fix a Dockerroot user, run the following commands on the server engine:
sudo groupadd dockerroot
Set the dockerroot group in
/etc/docker/daemon.json
. For example: { "group": "dockerroot" }.
sudo usermod -aG dockerroot demisto
sudo chcon -Rt svirt_sandbox_file_t /var/lib/demisto/temp
sudo systemctl docker restart
sudo systemctl restart d1