ensuring that container can run read-only and logs are forwarded to docker logs, fixes for latest alpine and cleanup

entrypoint.sh

@@ -1,11 +1,11 @@
 #!/bin/sh
 
-addgroup -g ${GID} privatebin && adduser -h /privatebin -s /bin/sh -D -G privatebin -u ${UID} privatebin
-touch /var/run/php-fpm.sock
+addgroup -g ${GID} privatebin && \
+adduser -h /privatebin -H -s /bin/sh -D -G privatebin -u ${UID} privatebin
 
 if [ ! -f /privatebin/cfg/conf.php ]; then
 	cp /privatebin/conf.sample.php /privatebin/cfg/conf.php
 fi
 
-chown -R privatebin:privatebin /privatebin /var/run/php-fpm.sock /var/lib/nginx /tmp /var/tmp/nginx
+chown -R privatebin:privatebin /privatebin/data
 supervisord -c /usr/local/etc/supervisord.conf