Remark: the riemann config is the file
It contains alert rules.
$ gem install riemann-dash $ riemann-dash
Then open http://localhost:4567 in a browser. Riemann-dash will connect to the local host (relative to your browser) by default, and show you a small manual. Change the IP address in the top right field to point to your Riemann server's websocket port.
Riemann-dash takes an optional config file, which you can specify as the first command-line argument. If none is given, it looks for a file in the local directory: config.rb. That file can override any configuration options on the Dash class, and hence, all Sinatra configuration. You'll find a few usage examples in "example/config.rb".
set :port, 6000 # HTTP server on port 6000 set :bind, "220.127.116.11" # Bind to a different interface config[:ws_config] = 'custom/config.json' # Specify custom workspace config
Putting in production
If you expect more than a couple of simultaneous users, you should consider running Riemann-dash in a proper application server. The easiest way is to install thin or puma. Riemann-dash will automatically use one of them if they are present. You'll need the C/C++ compiler, as well as the ruby and openssl libraries and headers installed.
$ gem install riemann-dash thin $ riemann-dash
Riemann-dash can also run in a web server supporting the Rack interface. An example rackup app is found in "example/config.ru".
$ git clone git://github.com/aphyr/riemann-dash.git $ cd riemann-dash $ bundle
# run tests $ sh/test
$ rake build $ rake release
$ sh/c > irb :001 > Riemann::Dash::VERSION > => "0.2.2"