Documentation: local registry not configured to pull from docker hub

[Matt McEuen]

When created per the "Multinode Deployment of Kolla" instructions, a local registry is not configured to proxy the official builds hosted in Docker Hub, resulting in a failure of "kolla-ansible pull".

The Multinode instructions direct you to use the start-registry command (https://github.com/openstack/kolla/blob/master/tools/start-registry), which works fine when you build/populate your own images.

Perhaps start-registry should be augmented to include a "-e REGISTRY_PROXY_REMOTEURL=https://registry-1.docker.io" parameter? In my case that successfully sets up my registry to pull (and cache) from Docker Hub.

[Jeffrey Zhang (jeffrey4l)]

If u wanna use the image in docker.io, you want need create a docker registry locally. Just configure the globals.yml file to use the docker.io directly.

[Matt McEuen (mm9745)]

Thanks, Jeffrey, that makes sense! However, it's not what the Multinode Deployment of Kolla guide says -- it says "A local registry is required for a multinode Kolla deployment".

I think the Multinode doc needs to say one of two things:

1) Local registry is required, but you configure it to proxy Docker Hub

2) Local registry is not required -- use it if you want to build your own images; otherwise configure docker.io in globals.yml

I'm happy to help with the doc update (or updating the start-registry script if appropriate), if you can help me understand the desired behavior.

[Jeffrey Zhang (jeffrey4l)]

Matt

cool. please add this into the doc. ;)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/413806

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/413806
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=19b0defb9220ff55e16f857dd6741b7e16a44bc7
Submitter: Jenkins
Branch: master

commit 19b0defb9220ff55e16f857dd6741b7e16a44bc7
Author: Matt McEuen <email address hidden>
Date: Wed Dec 21 17:18:07 2016 -0600

    Configure local registries to proxy docker hub

    Added the REGISTRY_PROXY_REMOTEURL parameter to the registry
    creation script, so that the registry will mirror images from
    Docker Hub (while still being able to host custom-built images).
    Updated the Multinode guide to reflect this.

    Change-Id: Ib789241fd2947b06fb0dc5732a0bf28431e1403d
    Closes-Bug: #1647436

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 4.0.0.0b3 development milestone.