Use separate container for the RSS plugin

Dockerfile

@@ -11,8 +11,6 @@ RUN apt-get update \
     && add-apt-repository ppa:transmissionbt/ppa \
     && wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add - \
     && echo "deb http://build.openvpn.net/debian/openvpn/stable xenial main" > /etc/apt/sources.list.d/openvpn-aptrepo.list \
-    && apt-get install -y sudo transmission-cli transmission-common transmission-daemon curl rar unrar zip unzip wget gcc make ruby2.3-dev \
-    && gem install transmission-rss \
     && apt-get update \
     && apt-get install -y sudo transmission-cli transmission-common transmission-daemon curl rar unrar zip unzip ufw iputils-ping openvpn \
     && wget https://github.com/Secretmapper/combustion/archive/release.zip \
@@ -34,7 +32,6 @@ ADD transmission/ /etc/transmission/
 ENV OPENVPN_USERNAME=**None** \
     OPENVPN_PASSWORD=**None** \
     OPENVPN_PROVIDER=**None** \
-    RSS_URL=**None** \
     TRANSMISSION_ALT_SPEED_DOWN=50 \
     TRANSMISSION_ALT_SPEED_ENABLED=false \
     TRANSMISSION_ALT_SPEED_TIME_BEGIN=540 \

docker-compose-armhf.yml

@@ -37,3 +37,13 @@ services:
     - "8080:8080"
   volumes:
     - /etc/localtime:/etc/localtime:ro
+
+ rss:
+  build:
+     context: ./plugins/rss
+     dockerfile: Dockerfile.armhf
+  image: haugene/rpi-transmission-plugin-rss
+  links:
+    - transmission
+  environment:
+    - RSS_URL=http://.../xxxxx.rss

docker-compose.yml

@@ -30,3 +30,10 @@ services:
     - 8080:8080
   volumes:
     - /etc/localtime:/etc/localtime:ro
+
+ rss:
+  image: haugene/transmission-rss
+  links:
+    - transmission
+  environment:
+    - RSS_URL=http://.../xxxxx.rss

plugins/rss/Dockerfile

@@ -0,0 +1,16 @@
+FROM ubuntu:16.04
+MAINTAINER Kristian Haugene
+
+# Update packages and install software
+RUN apt-get update \
+    && apt-get -y upgrade \
+    && apt-get -y install curl gcc make ruby2.3-dev \
+    && gem install transmission-rss \
+    && curl -L https://github.com/jwilder/dockerize/releases/download/v0.5.0/dockerize-linux-amd64-v0.5.0.tar.gz | tar -C /usr/local/bin -xzv
+
+ADD . /etc/transmission-rss
+
+ENV TRANSMISSION_DOWNLOAD_DIR=/data/completed \
+    RSS_URL=**None**
+
+CMD ["/etc/transmission-rss/start.sh"]

plugins/rss/Dockerfile.armhf

@@ -0,0 +1,16 @@
+FROM resin/rpi-raspbian:jessie
+MAINTAINER Kristian Haugene
+
+# Update packages and install software
+RUN apt-get update \
+    && apt-get -y upgrade \
+    && apt-get -y install curl gcc make ruby2.3-dev \
+    && gem install transmission-rss \
+    && curl -L https://github.com/jwilder/dockerize/releases/download/v0.2.0/dockerize-linux-armhf-v0.2.0.tar.gz | tar -C /usr/local/bin -xzv \
+
+ADD . /etc/transmission-rss
+
+ENV TRANSMISSION_DOWNLOAD_DIR=/data/completed \
+    RSS_URL=**None**
+
+CMD ["/etc/transmission-rss/start.sh"]

plugins/rss/environment-variables.tmpl

@@ -0,0 +1,4 @@
+#! /bin/sh
+
+export TRANSMISSION_DOWNLOAD_DIR={{ .Env.TRANSMISSION_DOWNLOAD_DIR }}
+export RSS_URL="{{ .Env.RSS_URL }}"

plugins/rss/start.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Source our persisted env variables from container startup
+dockerize -template /etc/transmission-rss/environment-variables.tmpl:/etc/transmission-rss/environment-variables.sh
+. /etc/transmission-rss/environment-variables.sh
+
+if [ -z "${RSS_URL}" ] || [ "${RSS_URL}" = "**None**" ] ; then
+ echo "NO RSS URL CONFIGURED, IGNORING"
+else
+  dockerize -template /etc/transmission-rss/transmission-rss.tmpl:/etc/transmission-rss.conf
+  echo "STARTING RSS PLUGIN"
+  transmission-rss
+fi

plugins/rss/transmission-rss.tmpl

@@ -2,6 +2,6 @@ feeds:
   - url: {{ .Env.RSS_URL }}
     download_path: {{ .Env.TRANSMISSION_DOWNLOAD_DIR }}
 server:
-  host: 127.0.0.1
+  host: transmission
   port: 9091
   rpc_path: /transmission/rpc

transmission/environment-variables.tmpl

@@ -73,8 +73,6 @@ export TRANSMISSION_WATCH_DIR_ENABLED={{ .Env.TRANSMISSION_WATCH_DIR_ENABLED }}
 # Transmission needs to know which VPN provider is used
 export OPENVPN_PROVIDER={{ .Env.OPENVPN_PROVIDER }}
 
-export RSS_URL="{{ .Env.RSS_URL }}"
-
 export ENABLE_UFW={{ .Env.ENABLE_UFW }}
 export TRANSMISSION_WEB_UI={{ .Env.TRANSMISSION_WEB_UI }}
 

transmission/start.sh

@@ -18,10 +18,6 @@ if [ "kettu" = "$TRANSMISSION_WEB_UI" ]; then
   export TRANSMISSION_WEB_HOME=/opt/transmission-ui/kettu
 fi
 
-if [ ! -z "${RSS_URL}" ] && [ "${RSS_URL}" != "**None**" ] ; then
-  dockerize -template /etc/transmission/transmission-rss.tmpl:/etc/transmission-rss.conf
-fi
-
 echo "Generating transmission settings.json from env variables"
 # Ensure TRANSMISSION_HOME is created
 mkdir -p ${TRANSMISSION_HOME}
@@ -46,11 +42,4 @@ else
     echo "NO PORT UPDATER FOR THIS PROVIDER"
 fi
 
-if [ -z "${RSS_URL}" ] || [ "${RSS_URL}" = "**None**" ] ; then
- echo "NO RSS URL CONFIGURED, IGNORING"
-else
-  echo "STARTING RSS PLUGIN"
-  transmission-rss
-fi
-
 echo "Transmission startup script complete."