Docker insecure-registries only showing in sudo docker info

Question

some help would be appreciated.

I run a server and am running a docker-registry that I'm trying to push/pull to from my local device. My local device is configured as per:

1. sudo vim /etc/hosts of your local device and add a new entry:

   # Manually added for server Docker registry
   <server_ip>     nuc
   

2. ping nuc to ensure connection.

3. sudo vim /etc/docker/daemon.json

   {
       "insecure-registries": ["nuc:5000"]
   }
   

4. Edit sudo vim /etc/default/docker

   {
       # Use DOCKER_OPTS to modify the daemon startup options.
       DOCKER_OPTS="--insecure-registry=nuc:5000"
   }
   

The issue I get is that when running docker info the specified insecure-registry isn't listed, however, when I run sudo docker info it is listed. Please note that my current $USER is part of the docker group and I can run docker commands without needing to use sudo (the following was followed: Docker post-install steps).

Note I got inspiration from StackOverflow at:

• Add Insecure Registry to Docker
• Add Insecure Registry to Docker in ubuntu [closed]
• Insecure Docker registry and self-signed certificates
• docker --insecure-registry flag not working as expected

Any help and guidance would be greatly appreciated.

EDIT: Additional info

• docker context ls

  NAME                TYPE                DESCRIPTION                               DOCKER ENDPOINT                                KUBERNETES ENDPOINT   ORCHESTRATOR
  default             moby                Current DOCKER_HOST based configuration   unix:///var/run/docker.sock                                          
  desktop-linux *     moby                Docker Desktop                            unix:///home/ben/.docker/desktop/docker.sock
  

• sudo docker context ls

  NAME                TYPE                DESCRIPTION                               DOCKER ENDPOINT               KUBERNETES ENDPOINT   ORCHESTRATOR
  default *           moby                Current DOCKER_HOST based configuration   unix:///var/run/docker.sock  
  

• printenv DOCKER_HOST and echo $DOCKER_HOST returned with nothing

• sudo printenv DOCKER_HOST and sudo echo $DOCKER_HOST returned with nothing

Answer 1

From the docker context output, it appears that you have two separate docker engines. One is installed directly on the host, running as root, and listening on /var/run/docker.sock. The other engine is running inside of a VM with Docker Desktop.

The documentation for Desktop on Linux specifies their own config file location at ~/.docker/desktop/settings.json, and there should also be a UI for updating its insecure-registries setting.