Docker Insecure Registry

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Docker Insecure Registry

Quick note on adding an entry like –insecure-registry 172.30.0.0/16 to docker running on Ubuntu.

While trying to get oc cluster up working on an Ubuntu VM I was getting the following error message and (helpfully) a suggested solution:

Docker

I normally work on RedHat boxes, and this is usually easily solved by going to /etc/sysconfig/docker and adding the desired registry to the line:

Insecure registry Pushing from Docker. Let’s assume the private insecure registry is at 10.141.241.175 on port 32000. The images we build need to be tagged with the.

On more recent RedHat docker installs this is now done in the externalised config file /etc/containers/registries.conf.

Docker Insecure Registry List

On my Ubuntu VM neither of these exist, and running locate with grep plus a quick google brings back loads of other file locations and suggestions, none of which worked for me (/etc/default/docker, exporting DOCKER_OPTS etc etc).

  • Scan images on Docker Registry v2 (including Docker Hub) Most vendors' registries comply with the Docker Registry version 2 API, including Docker Hub. To scan a Docker Registry v2 repository, create a new registry scan rule. To specify an official Docker Hub repository, enter library/, followed by the short string used to designate the repo.
  • I added DOCKEROPTS='–insecure-registry 10.0.0.11:5000' to /etc/default/docker and restarted the docker service but didn’t help. Anyone an idea of what I am doing wrong? Kar1 (Kar1) April 13, 2017, 1:01pm.

So, I checked systemctl status docker and got the following:

Insecure

which prompted me to look at the file

Docker Insecure Registry Windows

Adding the settings I wanted to the end of the ExecStart line like so:

followed by a

did the trick, finally.

Docker Insecure Registry Software

I am now hitting this issue, which looks like a systemd + docker mismatch… and am thinking CentOS may be a better place to test this!

Docker Insecure Registry Tutorial

argh.