add barebones knot config

This configuration does not yet do much but it provisions a knot
server that runs.

resources/chaosknoten/auth-dns/docker_compose/compose.yaml.j2

@@ -0,0 +1,13 @@
+# Links & Resources
+# https://www.knot-dns.cz/docs/latest/html/index.html
+
+services:
+  knot:
+    image: docker.io/cznic/knot:v3.5.4
+    restart: unless-stopped
+    command: "knotd"
+    network_mode: host
+    volumes:
+      - ./configs:/config:ro
+      - ./storage:/storage
+