From 8d43c09bfb5dcce4f7557c8e11658d6ce4cad546 Mon Sep 17 00:00:00 2001
From: Doug Daniels <daniels.douglas@gmail.com>
Date: Wed, 12 Aug 2015 23:57:47 -0500
Subject: [PATCH] Closes #23 - Ensure TRANSMISSION_HOME is on a persistent
 volume to store torrent resume info

---
 Dockerfile                              | 1 +
 transmission/environment-variables.tmpl | 2 +-
 transmission/start.sh                   | 6 ++++--
 transmission/updatePort.sh              | 5 ++++-
 4 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 6258774..9fa4160 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -94,6 +94,7 @@ ENV PIA_USERNAME=**None** \
     "TRANSMISSION_UTP_ENABLED=true" \
     "TRANSMISSION_WATCH_DIR=/data/watch" \
     "TRANSMISSION_WATCH_DIR_ENABLED=true" \
+    "TRANSMISSION_HOME=/data/transmission-home" \
     RESOLV_OVERRIDE=**None**
 
 # Expose port and run
diff --git a/transmission/environment-variables.tmpl b/transmission/environment-variables.tmpl
index 5959f7e..47c0421 100644
--- a/transmission/environment-variables.tmpl
+++ b/transmission/environment-variables.tmpl
@@ -1,5 +1,5 @@
 #! /bin/sh
-
+export TRANSMISSION_HOME={{ .Env.TRANSMISSION_HOME }}
 export TRANSMISSION_ALT_SPEED_DOWN={{ .Env.TRANSMISSION_ALT_SPEED_DOWN }}
 export TRANSMISSION_ALT_SPEED_ENABLED={{ .Env.TRANSMISSION_ALT_SPEED_ENABLED }}
 export TRANSMISSION_ALT_SPEED_TIME_BEGIN={{ .Env.TRANSMISSION_ALT_SPEED_TIME_BEGIN }}
diff --git a/transmission/start.sh b/transmission/start.sh
index 8c5e76f..0b5f580 100755
--- a/transmission/start.sh
+++ b/transmission/start.sh
@@ -8,10 +8,12 @@ echo "Updating TRANSMISSION_BIND_ADDRESS_IPV4 to tun0 ip: ${tun0ip}"
 export TRANSMISSION_BIND_ADDRESS_IPV4=${tun0ip}
 
 echo "Generating transmission settings.json from env variables"
-dockerize -template /etc/transmission-daemon/settings.tmpl:/etc/transmission-daemon/settings.json /bin/true
+# Ensure TRANSMISSION_HOME is created
+mkdir -p ${TRANSMISSION_HOME}
+dockerize -template /etc/transmission-daemon/settings.tmpl:${TRANSMISSION_HOME}/settings.json /bin/true
 
 echo "STARTING TRANSMISSION"
-exec /usr/bin/transmission-daemon -g /etc/transmission-daemon/ &
+exec /usr/bin/transmission-daemon -g ${TRANSMISSION_HOME} &
 
 echo "STARTING PORT UPDATER"
 exec /etc/transmission-daemon/periodicUpdates.sh &
diff --git a/transmission/updatePort.sh b/transmission/updatePort.sh
index dae3703..3afe85e 100755
--- a/transmission/updatePort.sh
+++ b/transmission/updatePort.sh
@@ -1,5 +1,8 @@
 #! /bin/sh
 
+# Source our persisted env variables from container startup
+. /etc/transmission-daemon/environment-variables.sh
+
 # Settings
 PIA_PASSWD_FILE=/config/pia-credentials.txt
 TRANSMISSION_PASSWD_FILE=/config/transmission-credentials.txt
@@ -10,7 +13,7 @@ transmission_username=$(head -1 $TRANSMISSION_PASSWD_FILE)
 transmission_passwd=$(tail -1 $TRANSMISSION_PASSWD_FILE)
 local_vpn_ip=$(ip addr show tun0 | grep inet | awk '{ print $2 }')
 pia_client_id_file=/etc/transmission-daemon/pia_client_id
-transmission_settings_file=/etc/transmission-daemon/settings.json
+transmission_settings_file=${TRANSMISSION_HOME}/settings.json
 port_assignment_url=https://www.privateinternetaccess.com/vpninfo/port_forward_assignment
 
 #