How to get remote access to a private docker-registry?

Question

I\'m trying to setup a private docker registry using the image taken from: https://github.com/docker/docker-registry

Just by running:
docker run -p 5000:50

Answer 1

I found that docker client version and registry docker version has to match up, else you would run into connectivity issues, despite having everything in place.

Answer 2

This is what worked for me on CentOS 7.2 and Docker 1.12.1 (latest as on date). My private registry v2 was running on 192.168.1.88:5000, change it accordingly. This also works if you have multiple registries, just keep on adding --insecure-registry IP:Port

$ sudo vim /usr/lib/systemd/system/docker.service
#ExecStart=/usr/bin/dockerd 
ExecStart=/usr/bin/dockerd --insecure-registry 192.168.1.88:5000
$
$ sudo systemctl stop docker
$ sudo systemctl daemon-reload
$ systemctl start docker

Answer 3

Ubuntu 16.04

Create (does not exist) file /etc/systemd/system/docker.service.d/registry.conf with contents:

[Service]
#You need the below or you 'ExecStart=' or you will get and error 'Service has more than one ExecStart= setting, which is only allowed'
ExecStart=
ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry 10.20.30.40:5000

then

sudo systemctl stop docker
sudo systemctl daemon-reload
sudo systemctl start docker