hawtio-online as a plugin

[pseudaverse]

Is it possible to use hawtio-online as a plugin for hawtio?
Use case is to have your own hawtio backend + ui with custom plugins/auth/etc. and to be able to collect jolokia instances from the cluster using hawtio-online ui libs or something?

[phantomjinx]

I would suggest that it is possible but would take some coding to be able to achieve a working application. One of the benefits of hawtio-online application being in the cluster is that it already has ready access to the sibling applications in the cluster. Having the hawtio-online plugin accessing applications from outside the cluster requires the necessary authentication - so that would be the first obstacle (not insurmountable).

So, yes, it is probably doable but would require some careful coding and testing to get an application working. It certainly does not come straight out of the current releases / products.

[pseudaverse]

I mean, in the current state of hawtio-online project, I guess its not possible to import https://github.com/hawtio/hawtio-online/tree/main/packages ui parts to create your own ui plugin (https://hawt.io/docs/plugins.html), right?
I'd like to have it to collect and connect to jolokia instances at least in the same cluster with my custom hawtio (backend + ui) app (where auth/custom proxy servlet/etc. are already settled) and to not reimplement or copy this logic from hawtio-online repo.

[pseudaverse]

@phantomjinx @tadayosi what do you think? Maybe make these ui parts from hawtio-online (kubernetes-api/etc.) importable or even create Webpack Module Federation (https://hawt.io/docs/plugins.html) plugin based of them inside the hawtio-online repo? So the hawtio-online will be more customizable and useful for cases like mine.

[phantomjinx]

So the construction of hawtio-online is:

1. @hawtio/react
2. hawtio-online kubernetes and management packages
3. online-shell

The online-shell contains a bootstrap.tsx which is responsible for utilising the @hawtio/react module webpack federation and loading in the @hawtio/react built-in plugins, the kubernetes api plugin, the management api plugin and the oauth plugin. Therefore, online-shell is simply the react application container for all the existing plugins (a more complex version of the @hawtio/react example app).

So if you have a custom hawtio backend/ui that is based upon the hawtio example app, then you should be able to follow the bootstrap template in order to get those plugins to appear in the same application. The only other thing online-shell provides in the Discover plugins (discover-core and discover), which provide hawtio-online's listing of the pods allowing you to click on them. Therefore, if you want this kind of UI listing the jolokia pods and providing the connect buttons then you'll want these too.

At this time, I am not convinced simply importing them or loading them in as remote webpack modules would work but I have never tried. That's said forking them at this time as-is and seeing if you can get a working app up and running would be the way I would go. Assuming you got something satisfactory working with the modules locally, creating a PR etc... might be the next step to consider how they could be exported and made available as dependencies / remote modules.

HTH?

[pseudaverse]

Thanks a lot! I'll try copying the ui modules for now, and then I'll get back to discussing which parts I'd like to make exportable, etc.