From e7404b41b7f8e9737f22c15f562cd9d338a8d91e Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordberg.se>
Date: Tue, 19 May 2015 11:02:28 +0200
Subject: [docker] Generate HiddenServicePort from $BACKEND_PORT.

---
 packaging/docker/onion/start.sh | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'packaging')

diff --git a/packaging/docker/onion/start.sh b/packaging/docker/onion/start.sh
index 7a6892e..dce48af 100644
--- a/packaging/docker/onion/start.sh
+++ b/packaging/docker/onion/start.sh
@@ -1,6 +1,14 @@
 #! /bin/sh
 
-[ -z "${HSPORT}" ] && HSPORT=80
+# BACKEND_PORT is set by `docker run --link BACKEND:foo' on the form
+# tcp://<ip>:<port>. See https://docs.docker.com/userguide/dockerlinks/.
+
+if  [ -n "${HSPORT}" ]; then
+    HSPORT=80                   # Default localhost:80 -> .onion:80
+    if [ -n "${BACKEND_PORT}" ]; then
+        HSPORT="80 "$(echo ${BACKEND_PORT} | sed 's|^.*://||1')
+    fi
+fi    
 
 if ! [ -e /etc/tor/torrc ]; then
     echo "SocksPort 0" >> /etc/tor/torrc
-- 
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