chore: backup infrastructure configurations [skip ci]

nomad_backup/port-discovery.hcl

@@ -0,0 +1,34 @@
+job "port-discovery" {
+  datacenters = ["dc1"]
+  type        = "batch"
+
+  group "scan" {
+    count = 1
+    constraint {
+      attribute = "${attr.unique.hostname}"
+      value     = "odroid6"
+    }
+
+  task "scan" {
+      driver = "docker"
+      config {
+        image        = "busybox"
+        network_mode = "host"
+        command      = "sh"
+        args         = ["local/scan.sh"]
+      }
+      template {
+        data = <<EOF
+#!/bin/sh
+TARGET="192.168.4.227"
+for p in 8085 8086 8087; do
+  echo "Testing $p..."
+  nc -zv -w 3 $TARGET $p 2>&1 | grep -q "refused" && echo "MATCH: $p is AVAILABLE (Refused)"
+  nc -zv -w 3 $TARGET $p 2>&1 | grep -q "succeeded" && echo "BUSY: $p is IN USE"
+done
+EOF
+        destination = "local/scan.sh"
+      }
+    }
+  }
+}