Create turnserver.conf

turnserver.conf

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+# turnserver.conf - minimal example
+
+# Listening port (container will use 3478 by default)
+listening-port=3478
+tls-listening-port=5349
+
+# Enable long-term credential mechanism (recommended)
+lt-cred-mech
+
+# Static user (username:password). For production prefer long-term-secret + HMAC users.
+user=testuser:testpass
+
+# Realm shown to clients
+realm=examplerealm
+
+# Fingerprint attribute for TURN messages
+fingerprint
+
+# Allow both UDP and TCP
+no-udp               # <-- COMMENT OUT if you want UDP allowed (we leave UDP allowed by default)
+# no-tcp             # <-- leave commented to allow TCP
+
+# Relay ports (min and max). By default coturn uses 49152-65535.
+# NOTE: if you don't have a port range open on the host you won't be able to relay media via UDP properly.
+# For testing only, you could set them equal to 3478 (NOT recommended for production).
+# Example to use the same relay port (may or may not work with your clients):
+# min-port=3479
+# max-port=3479
+
+# Log to stdout (docker-friendly)
+log-file=stdout
+simple-log
+
+# Don't attempt to create users from DB (we use static user above)
+# userdb=/etc/coturn/turndb
+
+# Stun-only fallback is possible if relaying is impossible:
+# support-stun
+
+# Optional secure production settings:
+# use-auth-secret
+# static-auth-secret=<your-long-secret-here>
+# cert and pkey paths if using TLS:
+# cert=/etc/coturn/certs/fullchain.pem
+# pkey=/etc/coturn/certs/privkey.pem