Converted router configuration file from .conf to JSON.

examples/cloud-init.yaml.tpl

@@ -28,42 +28,11 @@ apt:
 write_files:
   # The configuration file. Created here before the package is installed, so
   # postinst leaves it alone.
-  - path: /etc/vpn-router/vpn-router.conf
+  - path: /etc/vpn-router/vpn-router.json
     permissions: '0600'
     owner: root:root
     content: |
-      [general]
-      platform = ${platform}
-      mode = ${mode}
-
-      [interfaces]
-      external = ${external_interface}
-      internal = ${internal_interface}
-
-      [wan]
-      local_fqdn = ${fqdn}
-      local_id_mode = ${local_id_mode}
-
-      [local]
-      cidrs = ${local_cidrs}
-      int_addr = ${int_addr}
-      int_gateway_ip = ${int_gateway_ip}
-
-      [remote]
-      addrs = ${remote_addrs}
-      id = ${remote_id}
-      cidrs = ${remote_cidrs}
-      psk_b64 = ${psk_b64}
-
-      [p2s]
-      enabled = ${p2s_enabled}
-      address_pool = ${p2s_address_pool}
-      ca_name = ${p2s_ca_name}
-
-      [wireguard]
-      enabled = ${wg_enabled}
-      address = ${wg_address}
-      listen_port = ${wg_listen_port}
+      ${jsonencode(config)}
 
 package_update: true