Commit c036a76a authored by Mohamad Rahhal's avatar Mohamad Rahhal
Browse files

dhcp + tftp infrastructure implemented for testing

parent df8decf1

src/nbi/service/ztp_nbi/Resources.py

+0 −3
Original line number Diff line number Diff line
@@ -37,7 +37,6 @@ class _Resource(Resource): 


class ZtpProvisioning(_Resource):

    def get(self, filename: str):

        # direct pass-through to ztp-server REST

        url = f"{ZTP_HTTP_BASE}/provisioning/{filename}"

        r = requests.get(url, auth=(ZTP_HTTP_USER, ZTP_HTTP_PASS), timeout=10)

        return Response(
@@ -47,10 +46,8 @@ class ZtpProvisioning(_Resource): 
        )



class ZtpScript(_Resource):

    # GET /ztp-api/script/<string:scriptname>

    def __init__(self) -> None:

        super().__init__()

        # create the gRPC client only for the script endpoint

        self.ztp_client = ZtpClient(host=ZTP_GRPC_HOST, port=ZTP_GRPC_PORT)



    def get(self, scriptname: str):

src/tests/tools/dhcp_tftp_infra/servers/data/dhcpd.conf

0 → 100644
+18 −0
Original line number Diff line number Diff line 
# DHCP server configuration for NOS installation and ZTP

option default-url code 114 = text;

option ztp_json_url code 225 = text; # locally defined option since the 209 didnt work 



subnet 172.31.0.0 netmask 255.255.255.0 {

    option routers 172.31.0.1;

    option subnet-mask 255.255.255.0;

    option broadcast-address 172.31.0.255;

    option domain-name-servers 8.8.8.8;

    range 172.31.0.50 172.31.0.200;



    next-server 172.31.0.3;                  # BOOTP siaddr / TFTP host

    option tftp-server-name "172.31.0.3";    # DHCP Option 66

    filename "onie.img";                     # DHCP Option 67

    option default-url = "http://172.31.0.4/proxy/image";  # Default URL for the NOS installer

    option ztp_json_url = "http://172.31.0.4/ztp/ztp.json";  # ZTP config URL which is the settings

}

src/tests/tools/dhcp_tftp_infra/servers/data/dhcpd.leases

0 → 100644
+272 −0
Original line number Diff line number Diff line 
# The format of this file is documented in the dhcpd.leases(5) manual page.

# This lease file was written by isc-dhcp-4.4.1



# authoring-byte-order entry is generated, DO NOT DELETE

authoring-byte-order little-endian;



lease 172.31.0.52 {

  starts 5 2025/10/17 12:38:55;

  ends 5 2025/10/17 12:48:55;

  tstp 5 2025/10/17 12:48:55;

  cltt 5 2025/10/17 12:38:55;

  binding state free;

  hardware ethernet 9a:71:da:03:dc:74;

  uid "\001\232q\332\003\334t";

}

lease 172.31.0.53 {

  starts 5 2025/10/17 13:12:05;

  ends 5 2025/10/17 13:22:05;

  tstp 5 2025/10/17 13:22:05;

  cltt 5 2025/10/17 13:12:05;

  binding state free;

  hardware ethernet 7e:17:f1:84:1e:ac;

  uid "\001~\027\361\204\036\254";

}

lease 172.31.0.54 {

  starts 5 2025/10/17 13:16:38;

  ends 5 2025/10/17 13:26:38;

  tstp 5 2025/10/17 13:26:38;

  cltt 5 2025/10/17 13:16:38;

  binding state free;

  hardware ethernet ea:6a:a4:04:38:78;

  uid "\001\352j\244\0048x";

}

lease 172.31.0.55 {

  starts 5 2025/10/17 13:21:26;

  ends 5 2025/10/17 13:31:26;

  tstp 5 2025/10/17 13:31:26;

  cltt 5 2025/10/17 13:21:26;

  binding state free;

  hardware ethernet 0e:0a:52:f6:e1:1d;

  uid "\001\016\012R\366\341\035";

}

lease 172.31.0.56 {

  starts 5 2025/10/17 13:23:07;

  ends 5 2025/10/17 13:33:07;

  tstp 5 2025/10/17 13:33:07;

  cltt 5 2025/10/17 13:23:07;

  binding state free;

  hardware ethernet 2a:82:a6:01:8b:4d;

  uid "\001*\202\246\001\213M";

}

lease 172.31.0.57 {

  starts 2 2025/10/21 10:39:38;

  ends 2 2025/10/21 22:39:38;

  tstp 2 2025/10/21 22:39:38;

  cltt 2 2025/10/21 10:39:38;

  binding state free;

  hardware ethernet de:ce:04:62:66:66;

  uid "\001\336\316\004bff";

}

lease 172.31.0.58 {

  starts 2 2025/10/21 10:41:57;

  ends 2 2025/10/21 22:41:57;

  tstp 2 2025/10/21 22:41:57;

  cltt 2 2025/10/21 10:41:57;

  binding state free;

  hardware ethernet aa:e6:9a:ae:9b:49;

  uid "\001\252\346\232\256\233I";

}

lease 172.31.0.59 {

  starts 2 2025/10/21 10:45:12;

  ends 2 2025/10/21 22:45:12;

  tstp 2 2025/10/21 22:45:12;

  cltt 2 2025/10/21 10:45:12;

  binding state free;

  hardware ethernet 32:db:a2:14:83:29;

  uid "\0012\333\242\024\203)";

}

lease 172.31.0.60 {

  starts 2 2025/10/21 10:45:30;

  ends 2 2025/10/21 22:45:30;

  tstp 2 2025/10/21 22:45:30;

  cltt 2 2025/10/21 10:45:30;

  binding state free;

  hardware ethernet 56:11:3e:1d:42:ae;

  uid "\001V\021>\035B\256";

}

lease 172.31.0.61 {

  starts 2 2025/10/21 10:48:24;

  ends 2 2025/10/21 22:48:24;

  tstp 2 2025/10/21 22:48:24;

  cltt 2 2025/10/21 10:48:24;

  binding state free;

  hardware ethernet 82:cd:82:8e:6a:fc;

  uid "\001\202\315\202\216j\374";

}

lease 172.31.0.62 {

  starts 2 2025/10/21 11:01:17;

  ends 2 2025/10/21 23:01:17;

  tstp 2 2025/10/21 23:01:17;

  cltt 2 2025/10/21 11:01:17;

  binding state free;

  hardware ethernet 6e:b1:c6:64:ee:55;

  uid "\001n\261\306d\356U";

}

lease 172.31.0.63 {

  starts 2 2025/10/21 11:14:24;

  ends 2 2025/10/21 23:14:24;

  tstp 2 2025/10/21 23:14:24;

  cltt 2 2025/10/21 11:14:24;

  binding state free;

  hardware ethernet 92:dc:4f:a8:fc:dc;

  uid "\001\222\334O\250\374\334";

}

lease 172.31.0.64 {

  starts 2 2025/10/21 11:15:35;

  ends 2 2025/10/21 23:15:35;

  tstp 2 2025/10/21 23:15:35;

  cltt 2 2025/10/21 11:15:35;

  binding state free;

  hardware ethernet 12:ba:50:b2:e6:21;

  uid "\001\022\272P\262\346!";

}

lease 172.31.0.65 {

  starts 2 2025/10/21 11:26:03;

  ends 2 2025/10/21 23:26:03;

  tstp 2 2025/10/21 23:26:03;

  cltt 2 2025/10/21 11:26:03;

  binding state free;

  hardware ethernet f6:ae:08:ea:34:8d;

  uid "\001\366\256\010\3524\215";

}

lease 172.31.0.66 {

  starts 2 2025/10/21 11:31:41;

  ends 2 2025/10/21 23:31:41;

  tstp 2 2025/10/21 23:31:41;

  cltt 2 2025/10/21 11:31:41;

  binding state free;

  hardware ethernet a2:2c:38:c3:2b:60;

  uid "\001\242,8\303+`";

}

lease 172.31.0.67 {

  starts 2 2025/10/21 11:48:12;

  ends 2 2025/10/21 23:48:12;

  tstp 2 2025/10/21 23:48:12;

  cltt 2 2025/10/21 11:48:12;

  binding state free;

  hardware ethernet 12:81:59:29:27:9d;

  uid "\001\022\201Y)'\235";

}

lease 172.31.0.68 {

  starts 2 2025/10/21 11:52:33;

  ends 2 2025/10/21 23:52:33;

  tstp 2 2025/10/21 23:52:33;

  cltt 2 2025/10/21 11:52:33;

  binding state free;

  hardware ethernet 7a:28:7e:4e:af:66;

  uid "\001z(~N\257f";

}

lease 172.31.0.69 {

  starts 2 2025/10/21 11:57:43;

  ends 2 2025/10/21 23:57:43;

  tstp 2 2025/10/21 23:57:43;

  cltt 2 2025/10/21 11:57:43;

  binding state free;

  hardware ethernet f2:2a:e8:7e:1e:fa;

  uid "\001\362*\350~\036\372";

}

lease 172.31.0.70 {

  starts 2 2025/10/21 12:02:18;

  ends 3 2025/10/22 00:02:18;

  tstp 3 2025/10/22 00:02:18;

  cltt 2 2025/10/21 12:02:18;

  binding state free;

  hardware ethernet f6:12:c4:52:3a:94;

  uid "\001\366\022\304R:\224";

}

lease 172.31.0.71 {

  starts 2 2025/10/21 12:05:11;

  ends 3 2025/10/22 00:05:11;

  tstp 3 2025/10/22 00:05:11;

  cltt 2 2025/10/21 12:05:11;

  binding state free;

  hardware ethernet 36:ac:f8:81:d8:c8;

  uid "\0016\254\370\201\330\310";

}

lease 172.31.0.72 {

  starts 2 2025/10/21 12:39:19;

  ends 3 2025/10/22 00:39:19;

  tstp 3 2025/10/22 00:39:19;

  cltt 2 2025/10/21 12:39:19;

  binding state free;

  hardware ethernet 8e:ea:52:5d:29:cd;

  uid "\001\216\352R])\315";

}

lease 172.31.0.73 {

  starts 2 2025/10/21 12:52:46;

  ends 3 2025/10/22 00:52:46;

  tstp 3 2025/10/22 00:52:46;

  cltt 2 2025/10/21 12:52:46;

  binding state free;

  hardware ethernet d6:0c:5c:09:b8:c7;

  uid "\001\326\014\\\011\270\307";

}

lease 172.31.0.74 {

  starts 2 2025/10/21 12:55:54;

  ends 3 2025/10/22 00:55:54;

  tstp 3 2025/10/22 00:55:54;

  cltt 2 2025/10/21 12:55:54;

  binding state free;

  hardware ethernet 4e:35:b5:f4:2e:24;

  uid "\001N5\265\364.$";

}

lease 172.31.0.75 {

  starts 2 2025/10/21 13:44:33;

  ends 3 2025/10/22 01:44:33;

  tstp 3 2025/10/22 01:44:33;

  cltt 2 2025/10/21 13:45:06;

  binding state free;

  hardware ethernet 3e:69:a7:21:08:ab;

  uid "\001>i\247!\010\253";

}

lease 172.31.0.76 {

  starts 3 2025/10/22 10:24:18;

  ends 3 2025/10/22 22:24:18;

  tstp 3 2025/10/22 22:24:18;

  cltt 3 2025/10/22 10:24:18;

  binding state free;

  hardware ethernet 7e:f0:d4:91:54:6b;

  uid "\001~\360\324\221Tk";

}

lease 172.31.0.77 {

  starts 3 2025/10/22 10:36:30;

  ends 3 2025/10/22 22:36:30;

  tstp 3 2025/10/22 22:36:30;

  cltt 3 2025/10/22 10:36:30;

  binding state active;

  next binding state free;

  rewind binding state free;

  hardware ethernet 02:46:dd:94:cb:a4;

  uid "\001\002F\335\224\313\244";

  client-hostname "onie-whitebox";

}

lease 172.31.0.78 {

  starts 3 2025/10/22 10:37:37;

  ends 3 2025/10/22 22:37:37;

  cltt 3 2025/10/22 10:38:10;

  binding state active;

  next binding state free;

  rewind binding state free;

  hardware ethernet de:95:7c:6a:97:40;

  uid "\001\336\225|j\227@";

  client-hostname "onie-whitebox";

}

lease 172.31.0.77 {

  starts 3 2025/10/22 10:36:30;

  ends 3 2025/10/22 22:36:30;

  tstp 3 2025/10/22 22:36:30;

  cltt 3 2025/10/22 10:36:30;

  binding state free;

  hardware ethernet 02:46:dd:94:cb:a4;

  uid "\001\002F\335\224\313\244";

}

lease 172.31.0.78 {

  starts 3 2025/10/22 10:37:37;

  ends 3 2025/10/22 22:37:37;

  tstp 3 2025/10/22 22:37:37;

  cltt 3 2025/10/22 10:38:10;

  binding state free;

  hardware ethernet de:95:7c:6a:97:40;

  uid "\001\336\225|j\227@";

}

src/tests/tools/dhcp_tftp_infra/servers/data/dhcpd.leases~

0 → 100644
+268 −0
Original line number Diff line number Diff line 
# The format of this file is documented in the dhcpd.leases(5) manual page.

# This lease file was written by isc-dhcp-4.4.1



# authoring-byte-order entry is generated, DO NOT DELETE

authoring-byte-order little-endian;



lease 172.31.0.52 {

  starts 5 2025/10/17 12:38:55;

  ends 5 2025/10/17 12:48:55;

  tstp 5 2025/10/17 12:48:55;

  cltt 5 2025/10/17 12:38:55;

  binding state free;

  hardware ethernet 9a:71:da:03:dc:74;

  uid "\001\232q\332\003\334t";

}

lease 172.31.0.53 {

  starts 5 2025/10/17 13:12:05;

  ends 5 2025/10/17 13:22:05;

  tstp 5 2025/10/17 13:22:05;

  cltt 5 2025/10/17 13:12:05;

  binding state free;

  hardware ethernet 7e:17:f1:84:1e:ac;

  uid "\001~\027\361\204\036\254";

}

lease 172.31.0.54 {

  starts 5 2025/10/17 13:16:38;

  ends 5 2025/10/17 13:26:38;

  tstp 5 2025/10/17 13:26:38;

  cltt 5 2025/10/17 13:16:38;

  binding state free;

  hardware ethernet ea:6a:a4:04:38:78;

  uid "\001\352j\244\0048x";

}

lease 172.31.0.55 {

  starts 5 2025/10/17 13:21:26;

  ends 5 2025/10/17 13:31:26;

  tstp 5 2025/10/17 13:31:26;

  cltt 5 2025/10/17 13:21:26;

  binding state free;

  hardware ethernet 0e:0a:52:f6:e1:1d;

  uid "\001\016\012R\366\341\035";

}

lease 172.31.0.56 {

  starts 5 2025/10/17 13:23:07;

  ends 5 2025/10/17 13:33:07;

  tstp 5 2025/10/17 13:33:07;

  cltt 5 2025/10/17 13:23:07;

  binding state free;

  hardware ethernet 2a:82:a6:01:8b:4d;

  uid "\001*\202\246\001\213M";

}

lease 172.31.0.57 {

  starts 2 2025/10/21 10:39:38;

  ends 2 2025/10/21 22:39:38;

  tstp 2 2025/10/21 22:39:38;

  cltt 2 2025/10/21 10:39:38;

  binding state free;

  hardware ethernet de:ce:04:62:66:66;

  uid "\001\336\316\004bff";

}

lease 172.31.0.58 {

  starts 2 2025/10/21 10:41:57;

  ends 2 2025/10/21 22:41:57;

  tstp 2 2025/10/21 22:41:57;

  cltt 2 2025/10/21 10:41:57;

  binding state free;

  hardware ethernet aa:e6:9a:ae:9b:49;

  uid "\001\252\346\232\256\233I";

}

lease 172.31.0.59 {

  starts 2 2025/10/21 10:45:12;

  ends 2 2025/10/21 22:45:12;

  tstp 2 2025/10/21 22:45:12;

  cltt 2 2025/10/21 10:45:12;

  binding state free;

  hardware ethernet 32:db:a2:14:83:29;

  uid "\0012\333\242\024\203)";

}

lease 172.31.0.60 {

  starts 2 2025/10/21 10:45:30;

  ends 2 2025/10/21 22:45:30;

  tstp 2 2025/10/21 22:45:30;

  cltt 2 2025/10/21 10:45:30;

  binding state free;

  hardware ethernet 56:11:3e:1d:42:ae;

  uid "\001V\021>\035B\256";

}

lease 172.31.0.61 {

  starts 2 2025/10/21 10:48:24;

  ends 2 2025/10/21 22:48:24;

  tstp 2 2025/10/21 22:48:24;

  cltt 2 2025/10/21 10:48:24;

  binding state free;

  hardware ethernet 82:cd:82:8e:6a:fc;

  uid "\001\202\315\202\216j\374";

}

lease 172.31.0.62 {

  starts 2 2025/10/21 11:01:17;

  ends 2 2025/10/21 23:01:17;

  tstp 2 2025/10/21 23:01:17;

  cltt 2 2025/10/21 11:01:17;

  binding state free;

  hardware ethernet 6e:b1:c6:64:ee:55;

  uid "\001n\261\306d\356U";

}

lease 172.31.0.63 {

  starts 2 2025/10/21 11:14:24;

  ends 2 2025/10/21 23:14:24;

  tstp 2 2025/10/21 23:14:24;

  cltt 2 2025/10/21 11:14:24;

  binding state free;

  hardware ethernet 92:dc:4f:a8:fc:dc;

  uid "\001\222\334O\250\374\334";

}

lease 172.31.0.64 {

  starts 2 2025/10/21 11:15:35;

  ends 2 2025/10/21 23:15:35;

  tstp 2 2025/10/21 23:15:35;

  cltt 2 2025/10/21 11:15:35;

  binding state free;

  hardware ethernet 12:ba:50:b2:e6:21;

  uid "\001\022\272P\262\346!";

}

lease 172.31.0.65 {

  starts 2 2025/10/21 11:26:03;

  ends 2 2025/10/21 23:26:03;

  tstp 2 2025/10/21 23:26:03;

  cltt 2 2025/10/21 11:26:03;

  binding state free;

  hardware ethernet f6:ae:08:ea:34:8d;

  uid "\001\366\256\010\3524\215";

}

lease 172.31.0.66 {

  starts 2 2025/10/21 11:31:41;

  ends 2 2025/10/21 23:31:41;

  tstp 2 2025/10/21 23:31:41;

  cltt 2 2025/10/21 11:31:41;

  binding state free;

  hardware ethernet a2:2c:38:c3:2b:60;

  uid "\001\242,8\303+`";

}

lease 172.31.0.67 {

  starts 2 2025/10/21 11:48:12;

  ends 2 2025/10/21 23:48:12;

  tstp 2 2025/10/21 23:48:12;

  cltt 2 2025/10/21 11:48:12;

  binding state free;

  hardware ethernet 12:81:59:29:27:9d;

  uid "\001\022\201Y)'\235";

}

lease 172.31.0.68 {

  starts 2 2025/10/21 11:52:33;

  ends 2 2025/10/21 23:52:33;

  tstp 2 2025/10/21 23:52:33;

  cltt 2 2025/10/21 11:52:33;

  binding state free;

  hardware ethernet 7a:28:7e:4e:af:66;

  uid "\001z(~N\257f";

}

lease 172.31.0.69 {

  starts 2 2025/10/21 11:57:43;

  ends 2 2025/10/21 23:57:43;

  tstp 2 2025/10/21 23:57:43;

  cltt 2 2025/10/21 11:57:43;

  binding state free;

  hardware ethernet f2:2a:e8:7e:1e:fa;

  uid "\001\362*\350~\036\372";

}

lease 172.31.0.70 {

  starts 2 2025/10/21 12:02:18;

  ends 3 2025/10/22 00:02:18;

  tstp 3 2025/10/22 00:02:18;

  cltt 2 2025/10/21 12:02:18;

  binding state free;

  hardware ethernet f6:12:c4:52:3a:94;

  uid "\001\366\022\304R:\224";

}

lease 172.31.0.71 {

  starts 2 2025/10/21 12:05:11;

  ends 3 2025/10/22 00:05:11;

  tstp 3 2025/10/22 00:05:11;

  cltt 2 2025/10/21 12:05:11;

  binding state free;

  hardware ethernet 36:ac:f8:81:d8:c8;

  uid "\0016\254\370\201\330\310";

}

lease 172.31.0.72 {

  starts 2 2025/10/21 12:39:19;

  ends 3 2025/10/22 00:39:19;

  tstp 3 2025/10/22 00:39:19;

  cltt 2 2025/10/21 12:39:19;

  binding state free;

  hardware ethernet 8e:ea:52:5d:29:cd;

  uid "\001\216\352R])\315";

}

lease 172.31.0.73 {

  starts 2 2025/10/21 12:52:46;

  ends 3 2025/10/22 00:52:46;

  tstp 3 2025/10/22 00:52:46;

  cltt 2 2025/10/21 12:52:46;

  binding state free;

  hardware ethernet d6:0c:5c:09:b8:c7;

  uid "\001\326\014\\\011\270\307";

}

lease 172.31.0.74 {

  starts 2 2025/10/21 12:55:54;

  ends 3 2025/10/22 00:55:54;

  tstp 3 2025/10/22 00:55:54;

  cltt 2 2025/10/21 12:55:54;

  binding state free;

  hardware ethernet 4e:35:b5:f4:2e:24;

  uid "\001N5\265\364.$";

}

lease 172.31.0.75 {

  starts 2 2025/10/21 13:44:33;

  ends 3 2025/10/22 01:44:33;

  tstp 3 2025/10/22 01:44:33;

  cltt 2 2025/10/21 13:45:06;

  binding state free;

  hardware ethernet 3e:69:a7:21:08:ab;

  uid "\001>i\247!\010\253";

}

lease 172.31.0.76 {

  starts 3 2025/10/22 10:24:18;

  ends 3 2025/10/22 22:24:18;

  tstp 3 2025/10/22 22:24:18;

  cltt 3 2025/10/22 10:24:18;

  binding state active;

  next binding state free;

  rewind binding state free;

  hardware ethernet 7e:f0:d4:91:54:6b;

  uid "\001~\360\324\221Tk";

  client-hostname "onie-whitebox";

}

lease 172.31.0.77 {

  starts 3 2025/10/22 10:36:30;

  ends 3 2025/10/22 22:36:30;

  tstp 3 2025/10/22 22:36:30;

  cltt 3 2025/10/22 10:36:30;

  binding state active;

  next binding state free;

  rewind binding state free;

  hardware ethernet 02:46:dd:94:cb:a4;

  uid "\001\002F\335\224\313\244";

  client-hostname "onie-whitebox";

}

server-duid "\000\001\000\0010\213mI\206\217\304\372\236\030";



lease 172.31.0.78 {

  starts 3 2025/10/22 10:37:37;

  ends 3 2025/10/22 22:37:37;

  cltt 3 2025/10/22 10:37:37;

  binding state active;

  next binding state free;

  rewind binding state free;

  hardware ethernet de:95:7c:6a:97:40;

  uid "\001\336\225|j\227@";

  client-hostname "onie-whitebox";

}

lease 172.31.0.76 {

  starts 3 2025/10/22 10:24:18;

  ends 3 2025/10/22 22:24:18;

  tstp 3 2025/10/22 22:24:18;

  cltt 3 2025/10/22 10:24:18;

  binding state free;

  hardware ethernet 7e:f0:d4:91:54:6b;

  uid "\001~\360\324\221Tk";

}

src/tests/tools/dhcp_tftp_infra/servers/docker-compose.yml

0 → 100644
+59 −0
Original line number Diff line number Diff line 
version: '3.8'



services:

  dhcp-server:

    image: networkboot/dhcpd

    container_name: dhcp-server

    cap_add: ["NET_ADMIN"]

    environment:

      INTERFACES: "eth0"

    volumes:

      - ./data:/data

    networks:

      - wblabnet17231

    restart: unless-stopped



  tftp-server:

    build:

      context: ./tftp

      dockerfile: Dockerfile

    container_name: tftp-server

    volumes:

      - ./tftp/boot:/tftpboot

    networks:

      - wblabnet17231

    restart: unless-stopped



  whitebox:

    build:

      context: ./whitebox

      dockerfile: Dockerfile

    container_name: whitebox-emulator

    networks:

      - wblabnet17231

    cap_add: [NET_ADMIN, NET_RAW]

    environment:

      WB_IFACE: "eth0"

    depends_on:

      - dhcp-server

      - tftp-server



  http-server:

    image: nginx:alpine

    container_name: http-server

    volumes:

      - ./http:/usr/share/nginx/html:ro

    networks:

      - wblabnet17231

    restart: unless-stopped

    #ports:

    #  - "443:443"  



networks:

  wblabnet17231:

    name: wblabnet17231

    driver: bridge

    ipam:

      config:

        - subnet: 172.31.0.0/24

          gateway: 172.31.0.1