def install()

in bigtop-packages/src/charm/zeppelin/layer-zeppelin/lib/charms/layer/bigtop_zeppelin.py [0:0]

• 16 lines of code
• 5 McCabe index (conditional complexity)

    def install(self):
        '''
        Perform initial one-time setup and trigger puppet.
        '''
        # Dirs are handled by the bigtop deb, so no need to call out to
        # dist_config to do that work.  However, we want to adjust the
        # groups for the `ubuntu` user for better interaction with Juju.
        self.dist_config.add_users()

        # Set ports based on layer.yaml options
        self._add_override('zeppelin::server::server_port',
                           self.dist_config.port('zeppelin'))
        self._add_override('zeppelin::server::web_socket_port',
                           self.dist_config.port('zeppelin_websocket'))

        # Default spark to local mode on initial install. This will be
        # reconfigured if/when hadoop or spark relations are made.
        local_master = 'local[*]'
        self._add_override('zeppelin::server::spark_master_url', local_master)

        # The spark-client role expects hdfs by default. Since we want to
        # keep Hadoop optional, ensure we remove hadoopy bits from our
        # local spark config. This has no effect if/when a remote spark joins,
        # and since there is no spark history server running, the event dirs
        # are not important -- they just need not be 'hdfs:///blah'.
        events_log_dir = 'file:///tmp'
        self._add_override('spark::common::master_url', local_master)
        self._add_override('spark::common::event_log_dir', events_log_dir)
        self._add_override('spark::common::history_log_dir', events_log_dir)

        self.trigger_bigtop()