Reload config and reconnect clients on server restart

[plouc]

No description provided.

[tomav]

I'm running my dashboard in a docker container.
When a change is done to configuration, a new image is built and deployed.
This mean that the server restarts but doesn't know that some clients were connected, so there's no data polling, and no update on connected clients.

When using a dashboard on a TV (without easy access to keyboard/mouse), it's a big problem.
Each client has to refresh the page to get futures updates (new widget added if conf changed, and also existing widget updates is a build status changed).

The purpose of this issue is to fix this behaviour?

[plouc]

@tomav, yes it is, but there's another problem with disconnected clients.

This one isn't easy to solve because I made the (questionable) choice of having a javascript based config file, so it's loaded as a simple module (using require) which cache it, I've fixed it for styles generation when you change the theme (see https://github.com/plouc/mozaik/blob/master/gulp/tasks/styles.js#L17), but I'm not very found of this hack. Switching to json could ease it, but it won't be BC.

I've thought of another approach, abstracting the config so you could have for example a json based config, or having it stored in RethinkDB or whatever, but I think it'll require a lot of work.

I'll think more seriously about it, I agree it's a big issue when you use it on TV (which is one of the purpose of this tool :/).

[plouc]

@tomav, there's a WIP which should fix your problem, now you'll have a notification when the ws connection is broken, then the frontend will attempt to reconnect it 10 times each 15 seconds, see #77.

[tomav]

Great!

[plouc]

@tomav available in mozaik@1.4.0

[tomav]

Upgrading! Thank.

[plouc]

@tomav 1.4.1, there's a bug in 1.4.0

[tomav]

Ok.

[tomav]

Works great! 👍