feat(voice): add opt-in peer-to-peer calls and country rollouts (#3367)

deploy/self-hosting/.env.example

@@ -297,6 +297,11 @@ LIVEKIT_API_SECRET=CHANGE_ME
 #FLUXER_LIVEKIT_DEFAULT_REGION={"id":"default","name":"Default","emoji":"🌍","latitude":0,"longitude":0}
 #FLUXER_LIVEKIT_LOG_LEVEL=info
 
+# STUN servers for peer-to-peer calls, which need the voice_p2p experiment turned
+# on in the admin panel. STUN finds each peer's public address. The value below
+# is an example.
+#FLUXER_VOICE_P2P_STUN_URLS=stun:stun.example.com:3478
+
 FLUXER_KLIPY_API_KEY=
 #FLUXER_YOUTUBE_API_KEY=
 # Hosts the api never unfurls, comma separated.

deploy/self-hosting/docker-compose.yml

@@ -104,6 +104,7 @@ x-fluxer-env: &fluxer-env
   FLUXER_LIVEKIT_INTERNAL_URL: ${FLUXER_LIVEKIT_INTERNAL_URL:-http://livekit:7880}
   FLUXER_LIVEKIT_DEFAULT_REGION: '${FLUXER_LIVEKIT_DEFAULT_REGION:-{"id":"default","name":"Default","emoji":"🌍","latitude":0,"longitude":0}}'
   FLUXER_LIVEKIT_URL: ${FLUXER_LIVEKIT_URL:-${FLUXER_PUBLIC_ORIGIN:-${FLUXER_PUBLIC_SCHEME:-https}://${FLUXER_DOMAIN}:${FLUXER_PUBLIC_PORT:-443}}/livekit}
+  FLUXER_VOICE_P2P_STUN_URLS: ${FLUXER_VOICE_P2P_STUN_URLS:-}
 
   FLUXER_KLIPY_API_KEY: ${FLUXER_KLIPY_API_KEY:-}
   FLUXER_YOUTUBE_API_KEY: ${FLUXER_YOUTUBE_API_KEY:-}