feat(infra/k8s): Add in-cluster tazblog deployment via Nixery

First deployment actually using a Nixery image and `gitHEAD`.

This does not actually serve a working blog for various reasons. The
current storage mechanism (acid-state) isn't really appropriate
anymore and I'll need to change that soon.

infra/kubernetes/primary-cluster.yaml

@@ -10,3 +10,4 @@ include:
       bucket: tazjins-data
       account: nixery@tazjins-infrastructure.iam.gserviceaccount.com
       repo: ssh://source.developers.google.com:2022/p/tazjins-infrastructure/r/monorepo
+  - name: tazblog

infra/kubernetes/tazblog/config.yaml

@@ -0,0 +1,21 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tazblog
+  labels:
+    app: tazblog
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tazblog
+  template:
+    metadata:
+      labels:
+        app: tazblog
+    spec:
+      containers:
+      - name: tazblog
+        image: nixery.local/shell/tazjin.blog:{{ gitHEAD }}
+        command: [ "tazblog" ]