Packet BGP Agent

Watches Packet metadata for changes to a customdata field called BGP_ANNOUNCE, adds the specified IP blocks to the loopback device, and uses gobgp to begin announcing those IPs. The BGP_ANNOUNCE can be set to either a string or an array of strings X.X.X.X/XX or [X.X.X.X/XX, X.X.X.X/XX] depending on how many blocks you want to announce.

Usage

Can be run as a docker container:

docker run --net host --cap-add NET_ADMIN -e MD5_PASSWORD=... opencopilot/packet-bgp-agent

or

docker run --net host --cap-add NET_ADMIN opencopilot/packet-bgp-agent --md5 XXXX --asn 65000

Flags will override env vars.

Note that host networking and --cap-add NET_ADMIN are required to configure networking on the host.

ENV Var	Flag	Description	Default
MD5_PASSWORD	--md5	MD5 password to use	(empty string)
ASN	--asn	ASN to announce	65000

Setting Custom Data

You can set customdata (an arbitrary json blob) on a Packet device like so:

curl -H 'X-Auth-Token: XXX' -v -H "Content-Type: application/json" -X PUT -d '{"customdata": {"BGP_ANNOUNCE":["147.75.65.xxx/31", "147.75.73.xxx/32"]}}' https://api.packet.net/devices/DEVICE_ID

Dependencies

This code uses the netlink library and gobgp