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+title: Public release of the ungleich container registries
+---
+pub_date: 2021-12-11
+---
+author: ungleich
+---
+twitter_handle: ungleich
+---
+_hidden: no
+---
+_discoverable: yes
+---
+abstract:
+Today we published our container registries.
+---
+body:
+
+## TL;DR
+
+Today we opened up two public container registries from ungleich.
+You can use them to pull container images released by ungleich or to
+utilise the container registry caches.
+
+## Overview
+
+* You can pull public ungleich container releases from https://harbor.ungleich.svc.p10.k8s.ooo/ungleich-public
+* You can use the hub.docker.com cache on https://harbor.ungleich.svc.p10.k8s.ooo/dockerhub
+* You can use the quay.io cache on https://harbor.ungleich.svc.p10.k8s.ooo/quayio
+* You can use the hub.docker.com cache on
+  https://harbor.ungleich.svc.c2.k8s.ooo/dockerhub (development cluster)
+* You can use the quay.io cache on
+  https://harbor.ungleich.svc.c2.k8s.ooo/quayio (development cluster)
+
+All registries are **IPv6 only** and the caches are intended to be used
+by [Data Center Light customers](/u/projects/data-center-light)
+to avoid the IPv4 throttling that one encounters when
+pulling images from IPv6 only VM.
+
+You can test the ungleich-public repository as follows:
+
+```
+docker pull harbor.ungleich.svc.p10.k8s.ooo/ungleich-public/ungleich-certbot:0.3.3
+```
+
+
+## Usage
+
+If you are using [cri-o](https://cri-o.io/) you can use a
+registries.conf as follows:
+
+```
+unqualified-search-registries = ["docker.io"]
+
+[[registry]]
+prefix = "docker.io"
+location = "harbor.ungleich.svc.p10.k8s.ooo/dockerhub"
+
+[[registry]]
+prefix = "quay.io"
+location = "harbor.ungleich.svc.p10.k8s.ooo/quayio"
+
+[[registry.mirror]]
+location = "harbor.ungleich.svc.c2.k8s.ooo/dockerhub"
+
+[[registry.mirror]]
+location = "harbor.ungleich.svc.c2.k8s.ooo/quayio"
+```
+
+## Next steps and more of it
+
+More caches are to follow and we will add a list of publicly available
+images in the future. We do not plan to make the registries IPv4
+accessible, as all workload inside Data Center Light is IPv6 reachable
+and we think there is no need for IPv4 connectivity anymore.
+You can read more about
+[the ungleich kubernetes
+infrastructure](https://redmine.ungleich.ch/projects/open-infrastructure/wiki/The_ungleich_kubernetes_infrastructure)
+or join the [#kubernetes:ungleich.ch Matrix chat](/u/projects/open-chat/).
diff --git a/content/u/blog/ungleich-tech-talk-4-ipv4-as-a-service/contents.lr b/content/u/blog/ungleich-tech-talk-4-ipv4-as-a-service/contents.lr
index f76bfb6..cdd7f12 100644
--- a/content/u/blog/ungleich-tech-talk-4-ipv4-as-a-service/contents.lr
+++ b/content/u/blog/ungleich-tech-talk-4-ipv4-as-a-service/contents.lr
@@ -18,7 +18,8 @@ body:
 In the
 [fourth
 ungleich tech talk](https://youtu.be/RcgB7S6lo54)
-you can see how to get IPv4 via IPv6.
+you can see how to get IPv4 via IPv6 using the IPv6VPN and
+NAT64.
 
 <iframe width="560" height="315"
 src="https://www.youtube.com/embed/RcgB7S6lo54" title="YouTube video