docs: add docker option to static hosting page

[jakobkordez]

Adds a better and clearer guide to hosting static slides in a Docker container than is described in https://sli.dev/guide/install#install-on-docker

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[KermanX]

Thanks for your contribution!

I know almost nothing about Docker. Could you please also have a look at https://github.com/slidevjs/container? It seems to have lots of bugs.

And could we remove https://sli.dev/guide/install#install-on-docker as it's replaced by this one?

[jakobkordez]

What would the purpose of slidevjs/container be?
Currently slidevjs/container is a bad solution for statically hosting slides, it runs with a node image and never runs slidev build, which means it will never actually build a static website but will run a development server with node.
My commit uses a node image to run slidev build then copies only the dist folder to an apache image for hosting the static

My commit only replaces https://sli.dev/guide/install#build-hostable-spa-single-page-application so maybe remove only that?

[KermanX]

What would the purpose of slidevjs/container be?
Currently slidevjs/container is a bad solution for statically hosting slides, it runs with a node image and never runs slidev build, which means it will never actually build a static website but will run a development server with node.

The slidevjs/container runs a dev server because the built version doesn't support navigation sync.(#1227)

After #1227 is done, I think there can have a standalone navigation sync server as a Docker image.

My commit only replaces https://sli.dev/guide/install#build-hostable-spa-single-page-application so maybe remove only that?

Yes I think. This existing one seems not quite useful.

[KermanX]

There seem to be so many ways to deploy Slidev via docker. AKAIK, there are:

• tangramor/slidev_docker - Run Slidev in dev mode in a container
• slidevjs/container - The same
• In the old docs: installation#host-via-docker - Build on local machine. Docker only serves as an HTTP server
• This PR - Build and serve in Docker

IMO, after #1227 is done, the first two can be replaced by the standalone navigation sync server. The third one seems useless and out of Slidev's scope.