babelweb 2

babelweb 2 is a monitoring tool for Babel. It shows with a web interface the current neighbors, the current routes and a graphical overview of the babel network.

Installation

First you have to download go. You can do this on Debian for example with the following command:

sudo apt install golang

After that you have to clone the current git repo and compile the program:

git clone https://github.com/Vivena/babelweb2
cd babelweb2
go build

Now you have an executable program babelweb2.

By default, the web interface runs on port 8080. You can also specify a different endpoint with the -http parameter.

babelweb2 uses the local configuration interface of babeld. This must have been activated beforehand. babeld assumes that this is active on [::1]:33123. Alternatively, you can specify the endpoint with the -node= flag.

Install as Systemd Unit

In order to install babelweb2 as a systemd unit, we must first install the necessary files into the system. For this we can execute the following commands in the babelweb2 git directory:

sudo cp babelweb2 /usr/local/bin
sudo mkdir -p /usr/share/babelweb2/
sudo cp -r ./static/ /usr/share/babelweb2/

After that we create the unit file /etc/systemd/system/babelweb2.service:

[Unit]
Description=Yet Another Monitoring Tool for the Babel routing daemon
Documentation=https://github.com/Vivena/babelweb2

[Service]
LimitNOFILE=1048576
LimitNPROC=512
DynamicUser=yes
EnvironmentFile=/etc/default/babelweb2
ExecStart=/usr/local/bin/babelweb2 -http $PORT -static $STATIC_DIR
ExecReload=/bin/kill -SIGUSR1 $MAINPID
Restart=on-failure

[Install]
WantedBy=multi-user.target

After that you can reload the units:

systemctl daemon-reload

For babelweb2 to work, we still need to specify the arguments. For this we can create an environment file /etc/default/babelweb2:

PORT=:<port>
STATIC_DIR=/usr/share/babelweb2/static/

Here we replace <port> with the port on which the Babelweb2 interface should be available. The default is 8080, but you can also use 33124, for example.