Add winston based logger for master, slave, ctl, lib, and web_ui code.
Logging done from slaves and instances are sent to the master server and
tagged with the instance and/or slave it originated from. This allows
for example error messages to propagate back to the source that iniated
the action. The master server also stores the log to allow it to be
queried at a later point. For slaves a copy of the slave's log is also
stored locally.
Use lib* prefix for the modules impored from the lib package to help
distinguish them more from ordinary variables. Fix up the naming
convention for files to be consistently lowercase_underscore for
JavaScript files.
Split up codebase into the packages @clsterio/lib, @clusterio/master,
@clusterio/slave, and @clusterio/ctl using lerna to manage them. This
will allow deployment to use only the parts needed reducing install
size, and better separate the code into shared library, master, slave
and control.
Add users, roles and permissions and rework the authentication to use
separate user and slave tokens for control and slave connections
respectively.
Add commands for listing permissions, roles and users, and creating,
editing and deleting roles and users.
Implement notification to plugins for disconnect request, connect, drop,
and close. This allows plugins to properly handle slaves and the master
server shutting down without sending messages that will get lost.
Fix log spam when the dole distribution method is used on
subspace_storage plugin. This was caused by a bogus if condition being
translated into a sensible but wrong one.
Add web_root option to the master server and use it create URLs for
resources hosted by it. This permits hosting the master server web
interface behind reverse proxy under a dedicated path.
Hornwitser