Merge pull request #1 from chriskacerguis/alpine

Switching to Alpine Linux

Dockerfile

@@ -4,34 +4,35 @@
 
 # IMPORTANT: The container needs priviliged access to /dev/bus/usb on the host.
 
-FROM ubuntu:16.04
+FROM alpine:3.6
 MAINTAINER Chris Kacerguis
 
 LABEL Description="This image is used to start a script that will monitor for Honeywell Sensors events on 345.00 Mhz and send the data to an MQTT server"
 
 #
 # First install software packages needed to compile rtl_433 and to publish MQTT events
 #
-RUN apt-get update && apt-get install -y \
-  rtl-sdr \
-  librtlsdr-dev \
-  librtlsdr0 \
-  git \
-  automake \
-  libtool \
-  cmake \
-  mosquitto-clients
-
-#
-# Pull RTL_433 source code from GIT, compile it and install it
-#
-RUN git clone https://github.com/merbanan/rtl_433.git \
-  && cd rtl_433/ \
-  && mkdir build \
-  && cd build \
-  && cmake ../ \
-  && make \
-  && make install 
+RUN apk add --no-cache --virtual build-deps alpine-sdk cmake git libusb-dev && \
+    mkdir /tmp/src && \
+    cd /tmp/src && \
+    git clone git://git.osmocom.org/rtl-sdr.git && \
+    mkdir /tmp/src/rtl-sdr/build && \
+    cd /tmp/src/rtl-sdr/build && \
+    cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON -DCMAKE_INSTALL_PREFIX:PATH=/usr/local && \
+    make && \
+    make install && \
+    chmod +s /usr/local/bin/rtl_* && \
+    cd /tmp/src/ && \
+    git clone https://github.com/merbanan/rtl_433.git && \
+    cd rtl_433/ && \
+    mkdir build && \
+    cd build && \
+    cmake ../ && \
+    make && \
+    make install && \
+    apk del build-deps && \
+    rm -r /tmp/src && \
+    apk add --no-cache libusb mosquitto-clients
 
 #
 # Define an environment variable
@@ -42,5 +43,6 @@ ENV MQTT_USER="guest"
 ENV MQTT_PASS="guest"
 ENV MQTT_TOPIC="homeassistant/sensor/honeywell"
 
-COPY rtl2mqtt.sh /
-CMD ["/rtl2mqtt.sh"]
+COPY ./rtl2mqtt.sh /
+RUN chmod +x /rtl2mqtt.sh
+ENTRYPOINT ["/rtl2mqtt.sh"]

README.md

@@ -42,7 +42,7 @@ This has been tested and used with the following hardware (you can get it on Ama
 - 5800MINI Wireless Door/Window Contact by Honeywell
 - NooElec NESDR Nano 2+ Tiny Black RTL-SDR USB
 
-It should work just fine with any Honeywell RF sensors.
+However, it should work just fine with any Honeywell RF sensors transmitting on 345Mhz.
 
 
 ## Troubleshooting

rtl2mqtt.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # A simple script that will receive events from a RTL433 SDR
 # It is tuned to listen to 345.00 MHz with the Honeywell driver
@@ -11,6 +11,7 @@ export LANG=C
 PATH="/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
 
 # Start the listener and enter an endless loop
+echo "Starting RTL..."
 /usr/local/bin/rtl_433 -f 345000000 -F json -R 70 | while read line
 do
   # Create file with touch /tmp/rtl_433.log if logging is needed