++ipv6 proxy blog draft

content/u/blog/DRAFT-kubernetes-based-ipv6-ipv4-proxies/contents.lr

@@ -0,0 +1,57 @@
+title: Introducting Kubernetes based IPv4 to IPv6 proxies
+---
+pub_date: 2021-11-22
+---
+author: ungleich
+---
+twitter_handle: ungleich
+---
+_hidden: no
+---
+_discoverable: no
+---
+abstract:
+How to proxy from IPv4 to IPv6 in an IPv6 only kubernetes cluster.
+---
+body:
+
+## The crazy project: IPv6 based IPv4 proxies in Kubernetes
+
+If you know ungleich, you know that we always push the limits of what
+is possible. Today we want to push the barrier of "where can
+IPv4-to-IPv6 proxies live" a bit further. Let's see how that is going
+to look like!
+
+## IPv4-to-IPv6 proxies in general
+
+Before going into the details, let's see how and why we use
+IPv4-to-IPv6 proxies in general:
+
+![](/u/image/ipv6-to-ipv4-proxy.png)
+
+The basic idea is that IPv6 only services are made reachable via
+IPv4-to-IPv6 proxies towards the IPv4 world. So far we are offering
+this based on standard virtual machines. You can checkout
+[our previous tech
+talk](/u/blog/ungleich-tech-talk-2-accessing-ipv4-only-devices-via-ipv6/)
+for details on how this works.
+
+Let's try to dial things up a few notches, shall we?
+
+## Moving the IPv4-to-IPv6 proxy into kubernetes
+
+You are probably aware that at ungleich we are moving our workload
+from [cdist](https://cdi.st) + virtual machine automated workloads
+towards Kubernetes. At ungleich we are using
+[haproxy](http://www.haproxy.org/) as a basis for our IPv4-to-IPv6
+proxies. Moving this into kubernetes
+
+
+
+## Other solution?
+
+As you can see, mixing the dynamic IP generation and coupling it with
+static DNS entries for IPv4 resolution is not the easiest tasks. If
+you have a smart idea on how to solve this without manually creating
+entries for each and every service,
+[give us a shout!](/u/contact)