Refactor blog URL scheme (lets not break anything this time!)

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

docs/blog/posts/changelog/updated-recipe-metallb-v4.md

@@ -0,0 +1,26 @@
+---
+date: 2023-01-16
+categories:
+  - CHANGELOG
+tags:
+  - metallb
+links:
+  - MetalLB recipe: /kubernetes/loadbalancer/metallb.md
+title: Updated MetalLB recipe for CRDs with v0.13
+description: Prior to v0.13, MetalLB was configured using a ConfigMap. This has all changed now, and CRDs are required to perform configuration (which improves syntax checking, abong other things)
+---
+
+# Updated MetalLB recipe for CRDs
+
+Prior to v0.13, [MetalLB][metallb] was configured using a ConfigMap. This has all changed now, and CRDs are required to perform configuration (which improves syntax checking, abong other things)
+
+<!-- more -->
+
+[MetalLB](https://metallb.universe.tf/) offers a network [load balancer](/kubernetes/loadbalancer/) implementation which workes on "bare metal" (*as opposed to a cloud provider*).
+
+MetalLB does two jobs:
+
+1. Provides address allocation to services out of a pool of addresses which you define
+2. Announces these addresses to devices outside the cluster, either using ARP/NDP (L2) or BGP (L3)
+
+--8<-- "common-links.md"