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|
This directory contains a small web application that acts as a signup
sheet and attendee tracking system for [my local board gaming
meetup](https://www.meetup.com/brooklyn-based-board-gaming/).
# Development
## Installing dependencies
### With Nix + Docker ("blessed way")
Prerequisites:
- [Nix](https://nixos.org/)
- [lorri](https://github.com/nix-community/lorri)
- [Docker](https://www.docker.com/)
From this directory in a full checkout of depot, run the following
commands to install all development dependencies:
``` shell-session
$ pwd
/path/to/depot/users/grfn/bbbg
$ direnv allow
$ lorri watch --once # Wait for a single nix shell build
```
Then, to run a docker container with the development database:
``` shell-session
$ pwd
/path/to/depot/users/grfn/bbbg
$ arion up -d
```
### Choose-your-own-adventure
Note that the **authoritative** source for dev dependencies is the `shell.nix`
file in this directory - those may diverge from what's written here; if so
follow those versions rather than these.
- Install the [clojure command-line
tools](https://clojure.org/guides/getting_started), with openjdk 11
- Install and run a postgresql 12 database, with:
- A user with superuser priveleges, the username `bbbg` and the
password `password`
- A database called `bbbg` owned by that user.
- Export the following environment variables in a context visible by
whatever method you use to run the application:
- `PGHOST=localhost`
- `PGUSER=bbbg`
- `PGDATABASE=bbbg`
- `PGPASSWORD=bbbg`
## Running the application
Before running the app, you'll need an oauth2 client-id and client secret for a
Discord app. The application can either load those from a
[pass](https://www.passwordstore.org/) password store, or read them from
plaintext files in a directory. In either case, they should be accessible at the
paths `bbbg/discord-client-id` and `bbbg/discord-client-secret` respectively.
### From the command line
``` shell-session
$ clj -A:dev
Clojure 1.11.0-alpha3
user=> (require 'bbbg.core)
nil
user=> ;; Optionally, if you're using a directory with plaintext files for the discord client ID and client secret:
user=> (bbbg.util.dev-secrets/set-backend! [:dir "/path/to/that/directory"])
user=> (bbbg.core/run-dev)
#<SystemMap>
user=> (bbbg.db/migrate! (:db bbbg.core/system))
11:57:26.536 [main] INFO migratus.core - Starting migrations { }
11:57:26.538 [main] INFO com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Starting... { }
11:57:26.883 [main] INFO com.zaxxer.hikari.pool.HikariPool - HikariPool-1 - Added connection com.impossibl.postgres.jdbc.PGDirectConnection@3cae770e { }
11:57:26.884 [main] INFO com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Start completed. { }
11:57:26.923 [main] INFO migratus.core - Ending migrations { }
nil
```
This will run a web server for the application listening at
<http://localhost:8888>
### In Emacs, with [CIDER](https://docs.cider.mx/cider/index.html) + [direnv](https://github.com/wbolster/emacs-direnv)
Open `//users/grfn/bbbg/src/bbbg/core.clj` in a buffer, then follow the
instructions at the end of the file
# Deployment
## With nix+terraform
Deployment configuration is located in the `tf.nix` file, which is
currently tightly coupled to my own infrastructure and AWS account but
could hypothetically be adjusted to be general-purpose.
To deploy a new version of the application, after following "installing
dependencies" above, run the following command in a context with ec2
credentials available:
``` shell-session
$ terraform apply
```
The current deploy configuration includes:
- An ec2 instance running nixos, with a postgresql database and the
bbbg application running as a service, behind nginx with an
auto-renewing letsencrypt cert
- The DNS A record for `bbbg.gws.fyi` pointing at that ec2 instance,
in the cloudflare zone for `gws.fyi`
## Otherwise
¯\\\_(ツ)_/¯
You'll need:
- An uberjar for bbbg; the canonical way of building that is `nix-build
/path/to/depot -A users.grfn.bbbg.server-jar` but I\'m not sure how that
works outside of nix
- A postgresql database
- Environment variables telling the app how to connect to that
database. See `config.systemd.services.bbbg-server.environment` in
`module.nix` for which env vars are currently being exported by the
NixOS module that runs the production version of the app
|
