ingress/gate: add consul dynamic routes

jobs/ingress/gate-proxy.hcl

@@ -8,7 +8,7 @@ job "gate-proxy" {
 
     network {
       port "mc" {
-        static = 4501
+        static = 25565
       }
     }
 
@@ -30,7 +30,7 @@ job "gate-proxy" {
         ports = ["mc"]
 
         volumes = [
-          "local/file.conf:/config.yaml"
+          "local/config.yaml:/config.yaml"
         ]
       }
 
@@ -40,7 +40,7 @@ job "gate-proxy" {
 # settings are omitted and will be set by default.
 # See config.yml for the full configuration options.
 config:
-  bind: 0.0.0.0:4501
+  bind: 0.0.0.0:{{ env "NOMAD_PORT_mc" }}
 
   forwarding:
     mode: legacy
@@ -48,24 +48,18 @@ config:
   lite:
     enabled: true
     routes:
-      - host: regaus.rb.dcu.ie
-        backend: regaus-mc.service.consul:25566
-      - host: mc.rb.dcu.ie
-        backend: vanilla-mc.service.consul:25567
-      - host: olim909.rb.dcu.ie
-        backend: olim909-mc.service.consul:25568
-      - host: olim909-geyser.rb.dcu.ie
-        backend: olim909-mc.service.consul:19132
-      - host: games.rb.dcu.ie
-        backend: games-mc.service.consul:25569
-      - host: fugitives.rb.dcu.ie
-        backend: fugitives-mc.service.consul:25570
-      - host: cjaran-mc.rb.dcu.ie
-        backend: cjaran-mc.service.consul:25571
-      - host: magma-mc.rb.dcu.ie
-        backend: minecraft-magma.service.consul:25572
+        # Consul template to generate routes
+        # matches against all consul services ending in "-mc"
+        # NOTE: each minecraft job must have both:
+        # - a name ending in "-mc"
+        # - a port attached to the service
+        {{- range services }}
+        {{- if .Name | regexMatch ".*-mc$" }}
+          {{- range service .Name }}
+      - host: {{ .Name }}.rb.dcu.ie
+        backend: {{ .Name }}.service.consul:{{ .Port }}{{ end -}}{{ end -}}{{ end -}}
 EOH
-        destination = "local/file.conf"
+        destination = "local/config.yaml"
       }
     }
   }