greenbalance is a simple TCP load balancer with round-robin and weighted random support built on gevent and wr.

Simple example; this will make the load balancer listen on port 8080 and use a custom configuration. :

$ greenbalance --port 8080 --config /path/to/my.config

Options and Arguments ---------Options accepted by the greenbalance command.

--version

Show program's version number and exit.

-h, --help

Show this help message and exit.

-H, --host

IP or Hostname.

-p, --port

Listening Port.

-c, --config

Configuration file.

-l, --logfile

Log File

-L, --loglevel

Log Level (debug, info, warning, error, critical)

greenbalance.conf is by default placed in /etc if the package was intalled with root privileges. If you have the package installed in a virtualenv you will have to create a configuration file manually and pass it with the --config or -c argument.

[settings]
host = 0.0.0.0           # Bind to this (0.0.0.0 = all)
port = 3001              # Listening port.

[logging]
loglevel = debug
logfile = /var/log/greenbalance.log

[nodes]
backend1 3101 = 20       # will serve 20% of the requests.
192.168.100.7 3102 = 40  # will serve 40% of the requests.
localhost 3103 = 40      # will serve 40% of the requests.

See below for OS-specific preparations.

Install greenbalance with:

sudo pip install greenbalance

sudo apt-get install python-pip python-gevent; sudo pip install --upgrade pip

Install python-pip and python-gevent from epel.

Documentation is available at readthedocs.org

GPL