jicofo: var for sctp relay control

docker-compose.yml

@@ -310,6 +310,7 @@ services:
             - ENABLE_OCTO
             - ENABLE_RECORDING
             - ENABLE_SCTP
+            - ENABLE_SCTP_RELAY
             - ENABLE_VISITORS
             - ENABLE_AUTO_LOGIN
             - JICOFO_AUTH_LIFETIME

jicofo/rootfs/defaults/jicofo.conf

@@ -5,6 +5,7 @@
 {{ $JICOFO_AUTH_TYPE := .Env.JICOFO_AUTH_TYPE | default $AUTH_TYPE -}}
 {{ $JICOFO_AUTH_LIFETIME := .Env.JICOFO_AUTH_LIFETIME | default "24 hours" -}}
 {{ $ENABLE_SCTP := .Env.ENABLE_SCTP | default "0" | toBool -}}
+{{ $ENABLE_SCTP_RELAY := .Env.ENABLE_SCTP_RELAY | default "0" | toBool -}}
 {{ $ENABLE_RECORDING := .Env.ENABLE_RECORDING | default "0" | toBool -}}
 {{ $ENABLE_OCTO := .Env.ENABLE_OCTO | default "0" | toBool -}}
 {{ $ENABLE_AUTO_LOGIN := .Env.ENABLE_AUTO_LOGIN | default "1" | toBool -}}
@@ -197,6 +198,7 @@ jicofo {
       // two MUST be in sync (otherwise bridges will crash because they won't know how to
       // deal with octo channels).
       enabled = {{ $ENABLE_OCTO }}
+      sctp-datachannels = {{ $ENABLE_SCTP_RELAY }}
     }
 
     {{ if $ENABLE_REST }}