tevents

tevents is a small tool to be deployed in your tailnet to collect events/hooks from other services. By using tsnet, it can be deployed as a virtual private service. This allows to centrally collect events in your network and display them on a web interface.

Usage

All required resources are embedded in the executable.

git clone github.com/rverton/tevents
cd tevents && make
export TS_AUTHKEY=tskey-auth-xyu # can be retrieved via admin panel
go build -o tevents ./cmd/tevents
./tevents # all assets are embedded in this binary

Events

An event holds the following fields:

origin: (unique) identifier of the sender
type: type of the event (event or monitor-event)
body: content
owner: tailnet owner who send the event

There are two different types of events:

• Log events are simple one-time HTTP requests to to notify of a specific event.
• Monitor events are events that are sent periodically and allow you to graph execution. This allows for example to watch cron jobs for execution.

Submission

Events can be submitted via HTTP POST.

# example for log event
curl http://tevents/.log?origin=networkwatcher -d "new device found connected to network"

# example for monitoring a cron job executed every morning
0 1 * * * /usr/local/bin/backup.sh && curl -X POST http://tevents/.monitor?origin=cron:backup

Development

All relevant tasks can be done via make:

make watch              # restart web server on code changes
make tailwind-watch     # watch tailwind css changes
make tailwind           # only build tailwind resources
make run                # run web server
make test               # run all tests
make                    # build executable with all assets embedded

ToDo

• [ ] Add tests for event/monitor hook handler
• [ ] Make hour interval configurable
• [ ] Filter, search and pagination
• [ ] Allow to remove monitors (and all corresponding events)
• [x] Clear functionality