You want a multisite installation. It has the same plugins for all sites.
Subdomains cost nothing. A single wildcard dns record is all you need. It will be much easier to use subdomains. I’m not sure that the subfolder code is tested in multisite.
Though many settings can be set using environment variables (though they’d be the same for all sites, which is fine for some things like s3 but not others like pop mailboxes) , the best way to apply settings to all sites is probably with a plugin. You can also hide settings from the web interface.
If you have a budget I can help with all of these things.
Because the Problems & Solutions of every district are completely Different(Categories are different / also there is language is also different). there are more points…
I have thought about it Can I Manage all this from Single Instance? but then I found that It’s not a good idea to put all-district into the single discourse.
for more practical understanding
if we put all 500 districts in a single discourse.
if the 1 district has created 1 topic/day minimum. means 500 topics/day and it’s very big amount users can’t discuss properly because topics amount is very big. There will be a storm of topics.
That’s Right I’m going on that way. but I know that i have to face this problem, so I’m finding solutions. I’m not completely depended on Donations. If I don’t get donations for a long time then I can run it on my own investment just I have to wait some time.
Currently, I Have a Hosted Testing site on DO 2GB RAM Droplet. there I found that the instance is not using that much amount. This means it’s Enough for 1 city.
but I thought if we host multiple discourse on single droplet with more RAM if any district don’t have traffic another district can use that resource and it will save me some money. may be. correct me if i’m thinking wrong.
From what I can tell about your skills and needs, I’d recommend going with 1GB droplets for each city until you have at least 5. In the mean time you can experiment with multisite on droplets that you spin up to test and then delete.
I recommend that you wait until you have a problem before you go about solving it.