Fix Dockerfile of practical example

examples/practical-example/Dockerfile

-FROM debian:8
+FROM jcsilva/docker-kaldi-gstreamer-server
 MAINTAINER Eduardo Silva <zedudu@gmail.com>
 
-RUN apt-get update && apt-get install -y  \
-    autoconf \
-    automake \
-    bzip2 \
-    g++ \
-    git \
-    gstreamer1.0-plugins-good \
-    gstreamer1.0-tools \
-    gstreamer1.0-pulseaudio \
-    gstreamer1.0-plugins-bad \
-    gstreamer1.0-plugins-base \
-    gstreamer1.0-plugins-ugly  \
-    libatlas3-base \
-    libgstreamer1.0-dev \
-    libtool-bin \
-    make \
-    python2.7 \
-    python-pip \
-    python-yaml \
-    python-simplejson \
-    python-gi \
-    subversion \
-    wget \
-    zlib1g-dev && \
-    apt-get clean autoclean && \
-    apt-get autoremove -y && \
-    pip install ws4py==0.3.2 && \
-    pip install tornado && \    
-    ln -s /usr/bin/python2.7 /usr/bin/python ; ln -s -f bash /bin/sh
-
-RUN cd /opt && wget http://www.digip.org/jansson/releases/jansson-2.7.tar.bz2 && \
-    bunzip2 -c jansson-2.7.tar.bz2 | tar xf -  && \
-    cd jansson-2.7 && \
-    ./configure && make && make check &&  make install && \
-    echo "/usr/local/lib" >> /etc/ld.so.conf.d/jansson.conf && ldconfig && \
-    rm /opt/jansson-2.7.tar.bz2 && rm -rf /opt/jansson-2.7
-
-RUN cd /opt && \
-    git clone https://github.com/kaldi-asr/kaldi && \
-    cd /opt/kaldi/tools && \
-    make && \
-    ./install_portaudio.sh && \
-    cd /opt/kaldi/src && ./configure --shared && \
-    sed -i '/-g # -O0 -DKALDI_PARANOID/c\-O3 -DNDEBUG' kaldi.mk && \
-    make depend && make && \
-    cd /opt/kaldi/src/online && make depend && make && \
-    cd /opt/kaldi/src/gst-plugin && make depend && make && \
-    cd /opt && \
-    git clone https://github.com/alumae/gst-kaldi-nnet2-online.git && \
-    cd /opt/gst-kaldi-nnet2-online/src && \
-    sed -i '/KALDI_ROOT?=\/home\/tanel\/tools\/kaldi-trunk/c\KALDI_ROOT?=\/opt\/kaldi' Makefile && \
-    make depend && make && \
-    rm -rf /opt/gst-kaldi-nnet2-online/.git/ && \
-    find /opt/gst-kaldi-nnet2-online/src/ -type f -not -name '*.so' -delete && \
-    rm -rf /opt/kaldi/.git && \
-    rm -rf /opt/kaldi/egs/ /opt/kaldi/windows/ /opt/kaldi/misc/ && \
-    find /opt/kaldi/src/ -type f -not -name '*.so' -delete && \
-    find /opt/kaldi/tools/ -type f \( -not -name '*.so' -and -not -name '*.so*' \) -delete && \
-    cd /opt && git clone https://github.com/alumae/kaldi-gstreamer-server.git && \
-    rm -rf /opt/kaldi-gstreamer-server/.git/ && \
-    rm -rf /opt/kaldi-gstreamer-server/test/
-
-COPY start.sh stop.sh /opt/
+# This is the practical example part
 
 RUN mkdir -p /opt/models && cd /opt/models && \
-   wget https://phon.ioc.ee/~tanela/tedlium_nnet_ms_sp_online.tgz && \
-   tar -zxvf tedlium_nnet_ms_sp_online.tgz && \
-   wget https://raw.githubusercontent.com/alumae/kaldi-gstreamer-server/master/sample_english_nnet2.yaml -P /opt/models && \
-   find /opt/models/ -type f | xargs sed -i 's:test:/opt:g' && \
-   sed -i 's:full-post-processor:#full-post-processor:g' /opt/models/sample_english_nnet2.yaml
-
-
-
-RUN chmod +x /opt/start.sh && \
-    chmod +x /opt/stop.sh 
-
-CMD /opt/start.sh -y /opt/models/sample_english_nnet2.yaml
+    wget https://phon.ioc.ee/~tanela/tedlium_nnet_ms_sp_online.tgz && \
+    tar -zxvf tedlium_nnet_ms_sp_online.tgz && \
+    wget https://raw.githubusercontent.com/alumae/kaldi-gstreamer-server/master/sample_english_nnet2.yaml -P /opt/models && \
+    find /opt/models/ -type f | xargs sed -i 's:test:/opt:g' && \
+    sed -i 's:full-post-processor:#full-post-processor:g' /opt/models/sample_english_nnet2.yaml
+
+RUN apt-get update && \
+    apt-get install -y supervisor && \
+    apt-get clean autoclean && \
+    apt-get autoremove -y && \
+    rm -rf /var/lib/apt/lists/*
 
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 
+CMD ["/usr/bin/supervisord"]

examples/practical-example/start.sh

-#!/bin/bash
-
-MASTER="localhost"
-PORT=80
-
-usage(){
-  echo "Creates a worker and connects it to a master.";
-  echo "If the master address is not given, a master will be created at localhost:80";
-  echo "Usage: $0 -y yaml_file [-m master address] [-p port number]";
-}
-
-while getopts "h?m:p:y:" opt; do
-    case "$opt" in
-    h|\?)
-        usage
-        exit 0
-        ;;
-    m)  MASTER=$OPTARG
-        ;;
-    p)  PORT=$OPTARG
-        ;;
-    y)  YAML=$OPTARG
-        ;;
-    esac
-done
-
-#yaml file must be specified
-if [ "$YAML" == "" ] ; then
-  usage;
-  exit 1;
-fi;
-
-
-if [ "$MASTER" == "localhost" ] ; then
-  # start a local master
-  python /opt/kaldi-gstreamer-server/kaldigstserver/master_server.py --port=$PORT 2>> /opt/master.log &
-fi
-
-#start worker and connect it to the master
-export GST_PLUGIN_PATH=/opt/gst-kaldi-nnet2-online/src/:/opt/kaldi/src/gst-plugin/
-
-python /opt/kaldi-gstreamer-server/kaldigstserver/worker.py -c $YAML -u ws://$MASTER:$PORT/worker/ws/speech 2>> /opt/worker.log

examples/practical-example/stop.sh

-#!/bin/bash
-
-#kill worker
-ps axf | grep worker.py | grep -v grep | awk '{print "kill -15 " $1}' | sh
-
-#kill master
-ps axf | grep master_server.py | grep -v grep | awk '{print "kill -15 " $1}' | sh
-

examples/practical-example/supervisord.conf

+[supervisord]
+nodaemon=true
+
+[program:master]
+command=python /opt/kaldi-gstreamer-server/kaldigstserver/master_server.py --port=80
+numprocs=1
+autostart=true
+autorestart=true
+stderr_logfile=/opt/master.log
+
+
+[program:worker]
+command=python /opt/kaldi-gstreamer-server/kaldigstserver/worker.py -c /opt/models/sample_english_nnet2.yaml -u ws://localhost:80/worker/ws/speech
+numprocs=1
+autostart=true
+autorestart=true
+stderr_logfile=/opt/worker.log