env: Rename env variables to match Jitsi names

Signed-off-by: Sebastian Wicki <gandro@gmx.net>

README.md

@@ -20,14 +20,14 @@ the token service:
 - `COOKIE_NAME` _(required)_: Name of the moderator cookie (example: `jitsi_mod_jwt`)
 - `JWT_VALIDITY` _(default: `1h`)_: Duration for which the generated token
   should be valid for (example: `1h30m`, `300s`)
-- `JWT_SECRET` _(required)_: Secret JWT signing string, this value needs
+- `JWT_APP_SECRET` _(required)_: Secret JWT signing string, this value needs
   to match the one configured in Jitsi meet (example: `my_jitsi_app_secret`)
-- `JWT_ISSUER` _(required)_: JWT issuer, this value needs
+- `JWT_APP_ID` _(required)_: JWT issuer, this value needs
   to match the one configured in Jitsi meet (example: `my_jitsi_app_id`)
 - `JWT_AUDIENCE` _(default: `jitsi`)_: JWT audience, this value needs
   to match the one configured in Jitsi
 - `JWT_LEEWAY` _(default: `1m`)_: Maximum clock drift allowed for JWT validation
-- `JITSI_URL` _(required)_: Jitsi Meet base URL (without the room identifier)
+- `PUBLIC_URL` _(required)_: Jitsi Meet base URL (without the room identifier)
   (example: `https://meet.jitsi`)
 - `HTML_DOCROOT` _(default: `./html`)_: Directory containing the HTML login
   form template

main.go

@@ -24,12 +24,12 @@ var config struct {
 	CookieName string `env:"COOKIE_NAME,notEmpty"`
 
 	JWTValidity time.Duration `env:"JWT_VALIDITY" envDefault:"1h"`
-	JWTSecret   string        `env:"JWT_SECRET,notEmpty,unset"`
-	JWTIssuer   string        `env:"JWT_ISSUER,notEmpty"`
+	JWTSecret   string        `env:"JWT_APP_SECRET,notEmpty,unset"`
+	JWTIssuer   string        `env:"JWT_APP_ID,notEmpty"`
 	JWTAudience string        `env:"JWT_AUDIENCE" envDefault:"jitsi"`
 	JWTLeeway   time.Duration `env:"JWT_LEEWAY" envDefault:"1m"`
 
-	JitsiURL url.URL `env:"JITSI_URL,notEmpty"`
+	JitsiURL url.URL `env:"PUBLIC_URL,notEmpty"`
 
 	HTMLDocRoot string `env:"HTML_DOCROOT" envDefault:"./html"`
 	HTMLTitle   string `env:"HTML_TITLE" envDefault:"Jitsi Moderator Login"`