Example StarCluster plugin that configures environment variables on all nodes

config

# This is an example config that assumes scenv.py is either in 
# $HOME/.starcluster/plugins or lives somewhere in your $PYTHONPATH

[plugin env]
setup_class = scenv.EnvPlugin
# add as many key=value pairs as you like separated by ','
env_vars_list = 'PYTHONPATH=/path/to/python/mods, MYENV=some_value'

[cluster default]
...
plugins = env

scenv.py

# Install this file to $HOME/.starcluster/plugins/scenv.py or somewhere on your $PYTHONPATH
from starcluster.clustersetup import ClusterSetup
from starcluster.logger import log

class EnvPlugin(ClusterSetup):
    def __init__(self, env_vars_list):
        self.env_vars_list = '\n'.join([v.strip() for v in env_vars_list.split(',')])

    def run(self, nodes, master, user, user_shell, volumes):
        log.info("Setting environment on all nodes...")
        for node in nodes:        
            env_file = node.ssh.remote_file('/etc/profile.d/scenv.sh', 'w')
            env_file.write(self.env_vars_list)
            env_file.close()

Trying the comment and no love.. nothing written to .bashrc and no env variables added.. trying to replace base python with anaconda