Create user "bitmessage" to setup and run bitmessaged

Dockerfile

@@ -29,14 +29,19 @@ RUN python2 setup.py sdist \
   && py2dsc-deb dist/pybitmessage-${VER}.tar.gz \
   && dpkg -i deb_dist/python-pybitmessage_${VER}-1_amd64.deb
 
+# Create a user
+RUN useradd bitmessage && chown -R bitmessage ${HOME}
+
+USER bitmessage
+
 # Generate default config
-RUN src/bitmessagemain.py -t && mv keys.dat ..
+RUN src/bitmessagemain.py -t && mv keys.dat /tmp
 
 # Clean HOME
-RUN rm -rf ${HOME}
+RUN rm -rf ${HOME}/*
 
 # Setup environment
-RUN mv ../keys.dat . \
+RUN mv /tmp/keys.dat . \
   && APIPASS=$(tr -dc a-zA-Z0-9 < /dev/urandom | head -c32 && echo) \
   && echo "\napiusername: api\napipassword: $APIPASS" \
   && echo "apienabled = true\napiinterface = 0.0.0.0\napiusername = api\napipassword = $APIPASS" >> keys.dat