This PR adds support for reading rrds via an rrdcached daemon. It adds the following options --daemon {path} where the path to an rrdcached daemon can be provided, either as a unix socket or a network address and port and --chdir {path} which can specify a directory to cd into before issuing the rrdtool command. The chdir part is necessary because absolute paths are not permitted when using an rrdcached network socket.
This PR adds support for reading rrds via an rrdcached daemon. It adds the following options
--daemon {path}where the path to an rrdcached daemon can be provided, either as a unix socket or a network address and port and--chdir {path}which can specify a directory to cd into before issuing the rrdtool command. The chdir part is necessary because absolute paths are not permitted when using an rrdcached network socket.