This one was pretty straightforward yaay! Main thing was the change from `render file` to `render template` in a couple places, oh and a thing with complex `order()` clauses.
The session format changed, so we change the session cookie name rather than have things crash about it! (I hope the actual prod behavior is to ignore bad cookies rather than crash? But I figure this is more reliable anyway.)
Some important little upgrades but mostly straightforward!
Note that there's still a known issue where item searches crash, I was hoping that this was a bug in Rails 4.2 that would be fixed on upgading to 5, but nope, oh well!
Also uhh I just got a bit silly and didn't actually mean to go all the way to 5.2 in one go, I had meant to start at 5.0… but tbh the 5.1 and 5.2 changes seem small, and this seems to be working, so. Yeah ok let's roll!
Idk I guess these are the default place to put certain settings, but idk if they're still canonical, and I'd rather just not have files that don't mean anything rn!
Idk exactly what's going on with dotenv-deployment, if it turns out it was critical to our deploy process then we'll change the deploy process! It's deprecated and conflicts with gem deps for `dotenv-rails`.
At one point we piloted a "Camo" service to proxy HTTPS image urls for us, but it doesn't exist anymore.
We already have proxies and stuff for this, so I left `Image` as a placeholder for this, but it's not working yet!
This also deletes our final reference to the Addressable gem, so we can remove it!
I don't think these work anymore, and our volunteers get new items into the db fast anyway, Impress 2020 is doing better spidering these days. And then we get to remove the cron job `whenever` gem!
Yay, we've deleted all our background tasks!
We'll probably want to replace some of the basic functionality like certain caching? But we can deal with that as we run into it.
The direct motivation here was a seeming version conflict between Rails 4.2's rack dependency and latest Resque's rack dependency... but this is just nice complexity elimination regardless, we want this anyway :3
We've already swapped out the backend for this stuff to Impress 2020, so the resque task and the broken image report UI aren't actually relevant anymore. Delete them!
This helps us delete Resque soon too.
Idk this one might actually be a bit of a pain to load? But I'd want to optimize it differently anyway, and there's overhauls we're already planning to do here.
During this upgrade process, `rails server` hasn't been updating its logic when files changed, so every change had to be accompanied by a restart.
This turned out to be because Vagrant's networked filesystem to share between the host and guest systems doesn't support the filesystem update events Rails is listening for. So, we switch to a simpler file watcher that does more work but doesn't depend on the filesystem events!
It's unused, and I'm just double-checking that it's not somehow causing the issues with the rails dev server not reloading classes. (The `threadsafe!` option would do that, but I don't thiiiink this is the env we're running? But I'm wondering if the loader is getting confused by the prefixiness of the name or something. Unlikely!)
This is recommended by the Rails 4.0 upgrade guide:
> The caching method changed between Rails 3.x and 4.0. You should change the cache namespace and roll out with a cold cache.
I noticed too that old cache entries with old character encodings were a real problem, so yeah making sure we're working with a cold cache is smart!!
We'll need to replace the item search query stuff with direct MySQL queries, but that's not ready yet bc the app still isn't booting, so we're committing this in a known broken state for now!
I haven't logged into newrelic in a billion years, let's just stop sending them stuff
(This is a precursor to an attempt to delete flex stuff too and replace our elasticsearch stuff with direct mysql queries like Impress 2020 does, but that'll be more work!)
I guess the APIs changed here, but these were placeholder settings we weren't actually using anyway (cuz we use the OpenNeo ID integration), so I just commented them out and it seems fine for now!
NOTE: This doesn't boot yet! There's something changed in the `devise` API that we'll need to fix!
```
/vagrant/config/initializers/devise.rb:46:in `block in <top (required)>': undefined method `encryptor=' for Devise:Module (NoMethodError)
```
But yeah, we navigated the gem upgrades, and also I ran `rake rails:update` and hand-processed the suggestions it had for our config files.
Rather than figure out how to upgrade the Stripe gem to be compatible with future Rails, I'd rather just delete the references, since it's currently unused.
I'm not so bold as to go in and fully trash all our donation code; I just want to ensure we're not sending people down broken codepaths, and that if they reach them, the error messages are clear enough.
We've been serving images directly from `impress-asset-images.s3.amazonaws.com` for a long time. While they serve with long-lasting HTTP cache headers, and the app requests them with the `updated_at` timestamp in the query string; each GET request still executes a full S3 ReadObject operation to get the latest version.
In the past, this was only relevant to users on Image Mode, not Flash Mode. But now that everyone's on Image Mode, this matters a lot more!
Now, we've configured a Fastly host at `impress-asset-images.openneo.net`, to sit in front of our S3 bucket. This should dramatically reduce the GET requests to S3 itself, as our cache warms up and gains copies of the most common asset PNGs.
That said, I'm not sure how much actual cost impact this change will have. Our AWS console isn't configured to differentiate cost by bucket yet—I've started this process, but it might take a few days to propagate. All I know is that our current costs are $35/mo data transfer + $20/mo storage, and that outfit images are responsible for most of the storage cost. I hypothesize that `impress-asset-images` is responsible for most of the reads and data transfers, but I'm not sure!
In the future, I think we'll be able to bring our AWS costs to near-zero, by:
- Obsolete `impress-asset-images`, by using the official Neopets PNGs instead, after the HTML5 conversion completes.
- Obsolete `impress-outfit-images`, by using a Node endpoint to generate the images, fronted by a CDN cache. (Transfer the actual data to a long-term storage backup, and replace the S3 objects with redirects, so that old S3 URLs will still work.)
I hope this will be a big slice of the costs though! 🤞
(Note: I'll be deploying this on a bit of a delay, because I want to see the DNS propagate across the globe before flipping to a new domain!)
I've been doing this manually via email for a long time,
since building new stuff in the logged-in world was a pain in the old env.
But now here we are! Finally, finally :)
