Add new config definitions

docs/docs/codebase/setup/config.md

@@ -19,18 +19,22 @@ the main benefits for us are as follows:
 
 ```js
 {
-	MONGO_CONNECTION_URL: "127.0.0.1:27017",
-	MONGO_DATABASE_NAME: "somedb",
+	MONGO_CONNECTION_URL: "localhost:27017",
+	MONGO_DATABASE_NAME: "tachidb",
 	LOG_LEVEL: "info",
-	CAPTCHA_SECRET_KEY: "google_given_secret_key",
-	SESSION_SECRET: "some_secret_key",
+	CAPTCHA_SECRET_KEY: "secret_key",
+	SESSION_SECRET: "other_secret_key",
 	FLO_API_URL: "https://flo.example.com",
 	EAG_API_URL: "https://eag.example.com",
 	ARC_API_URL: "https://arc.example.com",
-	ARC_AUTH_TOKEN: "another_secret_key",
-	CDN_ROOT: "./local-cdn",
+	ARC_AUTH_TOKEN: "unused",
+	CDN_FILE_ROOT: "../tachi-cdn",
 	PORT: 8080,
-	TYPE: "ktchi"
+	CLIENT_INDEX_HTML_PATH: "./index.html",
+	ENABLE_SERVER_HTTPS: true,
+	TYPE: "omni",
+	RUN_OWN_CDN: true,
+	CLIENT_DEV_SERVER: null
 }
 ```
 
@@ -105,7 +109,7 @@ with the Kamaitachi version of Tachi.
 
 We use an ARC session token in order to pull scores from `ARC`. The session token is stored here.
 
-### CDN_ROOT
+### CDN_FILE_ROOT
 
 - Type: File Path
 
@@ -113,27 +117,16 @@ We use an ARC session token in order to pull scores from `ARC`. The session toke
 and profile pictures. This is a folder somewhere on the
 system (presumably using nginx serve-static).
 
-### CDN_URL
-
-- Type: URL or null (Optional).
-
-This parameter dictates where the CDN server is. Requests that hit the CDN
-will be redirected here. If null, or not present, `tachi-server` will use
-filesystem calls for the files (and return them) instead of redirects.
-
-!!! note
-	Nginx Serve-Static is relatively easy to set up, and provides
-	massive performance increases for this kind of stufff.
-
-	I highly recommend against leaving this null, as you can cause
-	large performance deficits.
-
 ### PORT
 
 - Type: Port (1-65536)
 
 What port to run the server on.
 
+!!! note
+	Ports below 1024 are subject to strange UNIX rules - typically we run on 8080 and use
+	an nginx reverse proxy.
+
 ### TYPE
 
 - Type: "btchi" | "ktchi" | "omni"
@@ -149,3 +142,41 @@ names.
 
 "omni" will run the server without any route restrictions.
 This is used for testing.
+
+### CLIENT_INDEX_HTML_PATH
+
+- Type: File Path
+
+The location of `index.html` to serve when any non-server route is hit.
+
+Since we use a react app for client navigation, the server does not concern itself
+with routing the user around, so this is just the react-app index.html to send.
+
+### ENABLE_SERVER_HTTPS
+
+- Type: Boolean
+
+Whether to use HTTPS. If this is set to true, the files `cert/key.pem` and `cert/cert.pem` will be
+used as the privateKey and the certificate, respectively.
+
+!!! note
+	In production, we use an Nginx reverse proxy which handles this.
+	A warning will be emitted if you are using HTTPS mode, as it's not generally meant to be used
+	at this level.
+
+### RUN_OWN_CDN
+
+- Type: Boolean
+
+Whether to host the CDN using the same express process and and an `express.static()` call.
+This is generally used for testing, or for simple local setups.
+
+This uses `CDN_FILE_ROOT` to determine where the CDN's content should be.
+
+### CLIENT_DEV_SERVER
+
+- Type: String | NULL (Optional)
+
+If present, and a string, this points to the webpack dev server for a react app. Having this
+option set results in CORS being enabled for *that* specific URL. This is useful for local
+development, but should not be used in production.