Moving to simplified code for launching runit

Dockerfile

@@ -1,19 +1,13 @@
 FROM alpine:3.2
 
-RUN sed -i 's/#rc_sys=""/rc_sys="lxc"/g' /etc/rc.conf
-
-# Networking is setup by Docker
-RUN echo 'rc_provide="loopback net"' >> /etc/rc.conf
-
-# Log boot process to /var/log/rc.log
-RUN sed -i 's/^#\(rc_logger="YES"\)$/\1/' /etc/rc.conf
-
-ADD my_init /sbin/
-
-RUN  mkdir /etc/container_environment \
-        && chmod a+x /sbin/my_init && mkdir /etc/service && mkdir /etc/my_init.d && \
+ADD start_runit /sbin/
+RUN sed -i 's/#rc_sys=""/rc_sys="lxc"/g' /etc/rc.conf && \
+	echo 'rc_provide="loopback net"' >> /etc/rc.conf && \
+	sed -i 's/^#\(rc_logger="YES"\)$/\1/' /etc/rc.conf \
+	mkdir /etc/container_environment &&\
+        chmod a+x /sbin/my_init && mkdir /etc/service && mkdir /etc/my_init.d && \
         echo "http://dl-4.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories && \
         echo "http://dl-4.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories && \
-        apk --update upgrade && apk add runit python3 && rm -rf /var/cache/apk/*
+        apk --update upgrade && apk add runit && rm -rf /var/cache/apk/*
 
-CMD ["/sbin/my_init"]
+CMD ["/sbin/start_runit"]

example-service.runit

@@ -0,0 +1,19 @@
+#! /bin/sh
+
+. /etc/envvars
+
+exec 2>&1 
+set -e
+
+umask 022
+
+
+PROGARGS=""
+PROGHOME="/"
+PROGNAME="/path/to/binary"
+
+
+export HOME=/root
+
+cd  "${PROGHOME}" &&  exec $PROGNAME $PROGARGS
+