Dynamically add dns routes to traefik instances to blocky

nomad/blocky/blocky.tf

@@ -9,9 +9,6 @@ locals {
     "${path.module}/config.yml",
     {
       "base_hostname" = "${var.base_hostname}",
-      # Could get this from consul_service.traefik
-      # but not sure what happens if it doens't exist yet
-      "ingress_address" = "192.168.2.106",
     }
   )
 }

nomad/blocky/config.yml

@@ -25,7 +25,14 @@ blocking:
 customDNS:
   customTTL: 1h
   mapping:
-    ${base_hostname}: ${ingress_address}
+    {{ with service "traefik" -}}
+    {{- $last := len . | subtract 1 -}}
+    {{- $services := . -}}
+    ${base_hostname}: {{ range $i := loop $last -}}
+      {{- with index $services $i }}{{ .Address }},{{ end -}}
+    {{- end -}}
+      {{- with index . $last }}{{ .Address }}{{ end -}}
+    {{- end }}
 
 prometheus:
   enable: true