But it you already have an nginx or other web server otherwise required to start up (which is in all likelihood the case), you don’t need any more auto startup, the “reverse proxy” already started can just serve it. I would say that container orchestration versioning can be helpful in some scenarios, but a simple git repository for a static website is way more useful since it’s got the right tooling to annotate changes very specifically on demand.
That reverse proxy is ultimately also a static file server. There’s really no value in spinning up more web servers for a strictly static site.
Folks have gone overboard assuming docker or similar should wrap every little thing. It sometimes adds complexity without making anything simpler. It can simplify some scenarios, but adding a static site to a webserver is not a scenario that enjoys any benefit.
For 90% of static site requirements, it scales fine. That entry point reverse proxy is faster at fetching content to serve via filesystem calls than it is at making an http call to another http service. For self hosting types of applications, that percentage guess to go 99.9%
If you are in a situation where serving the files through your reverse proxy directly does not scale, throwing more containers behind that proxy won’t help in the static content scenario. You’ll need to do something like a CDN, and those like to consume straight directory trees, not containers.
For dynamic backend, maybe. Mainly because you might screw up and your backend code needs to be isolated to mitigate security oopsies. Often it also is useful to manage dependencies, but that facet is less useful for golang where the resulting binary is pretty well self contained except maybe a little light usage of libc.