Still need to test the app with it, and getting this to deploy right
will be a bit tricky! Here's my thinking for sequencing once the code
is ready:
1. Temporarily modify `deploy.yml` to push the version, but not set it
as `current` or restart the app.
2. Update the service file to use Ruby 3.3.0 and reference that version
directly (instead of `current`), and restart the app.
3. Once it's already running, link that version as `current`.
4. Update the service file to reference `current` as usual, and restart
the app.
The homepage used to point to old projects that don't work anymore
anyway! This is the only project that stuck, so just redirect here!
We also remove the openneo.net link from the footer, because there's
nothing useful to say there anymore!
It's finally colocated onto this box, instead of being on the old
server! I think I'm noticing substantial perf improvements, probably
both from increased colocation (tho they were in the same house
before), and also from like ten years of performance optimizations LOL!
As part of this, I created a new `setup_secrets.yml` file that's
similar to `production.env`, but is for values that the setup script
itself needs access to, whereas `production.env` is for values that the
app needs at runtime. (Though they have some things in common, like the
MySQL user password!) It's gitignored for security, as per usual!
A little architecture trick here! DTI 2020 authorizes support staff
requests by means of a secret token, instead of user account stuff. And
our support tools still all call DTI 2020 APIs.
So here, we bridge the gap: we copy DTI 2020's support secret to this
app's environment variables (I needed to update
`deploy/files/production.env` and run `bin/deploy:setup` for this!),
then users with the new `support_secret` flag have it added to their
HTML documents in the meta tags. Then, the JS reads the meta tag.
I also fixed an issue in the `deploy/setup.yml` playbook, where I had
temporarily commented some stuff out to skip steps one time, and forgot
to uncomment them after oops lol!
Been wanting this for a while in theory, gonna actually do it now!
The motivation is that I want to turn up the timeout for loading pets,
because the Neopets endpoints are slower today with the NC UC release -
but I can already predict that under our current architecture that will
be a problem, because it'll block up our request queue!
Falcon uses Ruby's relatively-new async system to *not* have requests
block on upstream requests, and my understanding is that this behavior
is plug-and-play. Let's see how it goes!
We're now all-in on impress.openneo.net for this box!
One little wrinkle is that certbot was initially upset that I had
already uploaded the copy-pasted certs from the other box to here, at
the file path it expected to get to manage. So, I moved those to
`/srv/impress/shared/temp-certs`, and changed the nginx config
accordingly; and then deleted the original and let certbot control it!
The usual stuff! Installed the new gem and its new deps, ran
`bin/rails app:update` and did my best to manually merge the dev/prod
config files with the new canonical defaults, deleted some migrations I
don't think are relevant to us, and yeah!
Also, Rails 7.1 seems to need `libyaml-dev` installed, so I added that
to the `deploy/setup.yml` playbook!
One thing to note is that, while I was here, I turned on some settings
relating to our use of SSL that technically weren't on before. This
should be fine and helpful? But if stuff breaks, well, check those!
Now, if I run `sudo -i -u impress` on the production server, it opens a
login bash shell, with all of the app's environment variables exported,
straight to `/srv/impress`.
This will let me quickly `cd current; bin/rails console` to start poking
at whatever needs poked!
I'm not sure why this was causing problems? especially why *now*? But I was seeing errors in systemctl of it trying to parse this comment as an environment variable soooo ok!
Could just be an intermittent thing where like, a byte got dropped last time we transferred this file or something? but whatever, this has fixed it and also is reasonable comment placement!
Uhhh I think I must have made a mistake here where like… I must have left this in the service file for a while then accidentally deleted it from the Ansible playbook but not the live server? I had tested with this, then tested again without it and thought it wasn't necessary, but it turns out to have been necessary I guess? Ok!
This instructs Rails's ExecJS library to not bother looking for Node or something similar, because the app doesn't actually need to run any JS, even though the `react-rails` library (?) seems to be pretty eager about the possibility that we'll need to server-side-render stuff. (We should consider whether we want to though tbh? But… idk that would be a pretty different arch than what we've done with `jsbundling-rails` so like. idk whatever)
Mm, something in Rails was getting upset when working with session cookies because the `Host` header was `127.0.0.1:3000` instead of `beta.impress.openneo.net`. I only saw this log entry on important actions like login, so my hope is that this is why login is failing??
I was intentionally omitting these to start, because I didn't understand them well and didn't want to add things I didn't understand. But now I've checked in on them more and they seem standard and reasonable. Ok!
```
HTTP Origin header (https://beta.impress.openneo.net) didn't match request.base_url (http://127.0.0.1:3000)
```
Source: https://stackoverflow.com/a/73198861/107415
Okay, this is much simpler than the impress-2020 version where we symlinked node_modules and stuff - Bundler is just a lot better at this lol
Right now, the app is failing to start because we don't install Node—I wasn't sure whether we'd need to and whether I was gonna precompile the assets etc
Though now that I say that out loud, I guess part of the issue might be that I'm not sure the app is running in RAILS_ENV=production, I wonder if it still wants Node in that case?? I'll flip that switch in the service file now, then commit to save my place for the day, then try again with starting the app sometime and see what it says!
Yay it's working! We set up the box, install Ruby, upload a placeholder app, set it up as a service, and get it hooked up to nginx!
Next, we'll add the script to upload the latest version of the site. We just need to slot it into `/srv/impress/current`, run `bundle install`, and that should basically be that! (Oh, and we need to compile production assets—I wonder if it's useful to do that on the dev machine instead of on the target? That might save us from needing to install Node. Or maybe we'll have to anyway!)
