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@ -3,13 +3,13 @@
birdwatcher is a small HTTP server meant to provide an API defined by
Barry O'Donovan's
[birds-eye](https://github.com/inex/birds-eye-design/) to
[the BIRD routing daemon](http://bird.network.cz/).
[the BIRD internet routing daemon](http://bird.network.cz/).
## Why
The [INEX implementation](https://github.com/inex/birdseye) of
birdseye runs PHP, which is not always desirable (and performant)
in a routeserver setting. By using Go, we are able to work with
in a route server setting. By using Go, we are able to work with
regular binaries, which means deployment and maintenance might be
more convenient.
@ -24,7 +24,7 @@ Please make sure your go version is `>= 1.9`.
Running `go install github.com/alice-lg/birdwatcher@latest` will give you
a binary. You might need to cross-compile it for your
bird-running servive (`GOARCH` and `GOOS` are your friends).
bird-running service (`GOARCH` and `GOOS` are your friends).
We provide a Makefile for more advanced compilation/configuration.
Running `make linux` will create a Linux executable (by default for
@ -34,13 +34,14 @@ to the Makefile).
#### 2.0 Breaking Change
The per peer table configuration is no longer done in the birdwatcher,
but directly in alice.
The BIRD configuration setup (single/multi table, pipe/table prefixes) is no longer
configured in birdwatcher but directly in Alice-LG. Please have a look at the
[source section of the Alice-LG config example](https://github.com/alice-lg/alice-lg/blob/master/etc/alice-lg/alice.example.conf).
### BIRD configuration
Birdwatcher parses the output of birdc and expects (for now)
Birdwatcher parses the output of `birdc[6]` and expects (for now)
the time format to be `iso long`. You need to configure
timeformat base iso long;
@ -51,8 +52,8 @@ the time format to be `iso long`. You need to configure
in your `/etc/bird[6].conf` for birdwatcher to work.
#### BIRD keep filtered routes
To also see the filtered routes in BIRD you need to make sure that you
have enabled the 'import keep filtered on' option for your BGP peers.
To also see filtered routes in configured BGP protocol instances, you need to make
sure that you have enabled the `import keep filtered on` option for affected bgp protocols.
protocol bgp 'peerX' {
...
@ -60,39 +61,21 @@ have enabled the 'import keep filtered on' option for your BGP peers.
...
}
Now you should be able to do a 'show route filtered' in BIRD.
Now you should be able to do a `show route filtered protocol peerX` in BIRD.
Do note that 'import keep filtered on' does NOT work for BIRD's pipe protocol
which is used when you have per peer tables, often used with Route Servers. If
your BIRD configuration has its import filters set on the BIRD pipe protocols
themselves then you will not be able to show the filtered routes.
However, you could move the import filters from the pipes to the BGP protocols
directly. For example:
If you use a multi table setup you are also using the pipe protocol the connect the tables.
No special BIRD configuration is required to be able to query pipe filtered routes.
table master;
table table_peer_X;
birdwatcher provides [various endpoints (see "available modules" section)](https://github.com/alice-lg/birdwatcher/blob/master/etc/birdwatcher/birdwatcher.conf)
to query routes filtered in bgp protocol as well as pipe protocol instances.
protocol pipe pipe_peer_X {
table master;
peer table table_peer_X;
mode transparent;
import all;
export where exportMagic();
}
protocol bgp 'peerX' {
...
table table_peer_X;
import where importFilter();
import keep filtered on;
export all;
...
}
For use with [Alice-LG](https://github.com/alice-lg/alice-lg), make sure to set the appropriate BIRD config setup
in your [Alice-LG configuration](https://github.com/alice-lg/alice-lg/blob/master/etc/alice-lg/alice.example.conf).
#### BIRD tagging filtered routes
If you want to make use of the filtered route reasons in the Birdseye then you need
If you want to make use of the filtered route reasons in [Alice-LG](https://github.com/alice-lg/alice-lg), you need
to make sure that you are using BIRD 1.6.3 or up as you will need Large BGP Communities
(http://largebgpcommunities.net/).
(http://largebgpcommunities.net/) support.
You need to add a Large BGP Community just before you filter a route, for example:
@ -126,7 +109,7 @@ You need to add a Large BGP Community just before you filter a route, for exampl
### Using Docker
You can run the birdwatcher for bird2 with docker:
You can run the birdwatcher for BIRD2 with docker:
docker pull alicelg/birdwatcher:latest
@ -164,16 +147,15 @@ If you do not know how to configure it, please consider opening
## How
In the background `birdwatcher` runs the `birdc` client, sends
In the background `birdwatcher` runs the `birdc[6]` client, sends
commands and parses the result. It also leverages simple caching
techniques to help reduce the load on the bird service.
techniques to help reduce the load on the BIRD service.
## Who
Initially developed by Daniel and MC from [Netnod](https://www.netnod.se/) in
two days at the RIPE 73 IXP Tools Hackathon in Madrid, Spain.
Running bird and parsing the results was added by [Veit Heller](https://github.com/hellerve/) on behalf of [ecix](http://ecix.net/).
Running BIRD and parsing the results was added by [Veit Heller](https://github.com/hellerve/) on behalf of [ecix](http://ecix.net/).
With major contributions from: Patrick Seeburger and Benedikt Rudolph on behalf of [DE-CIX](https://de-cix.net).