Fixes to wrapper entrypoint

Dockerfile

@@ -4,6 +4,9 @@ MAINTAINER Ding Corporation
 
 VOLUME /var/mail /config /output
 
+ADD save-attachments.crontab /etc/cron.d/save-attachments
+ADD save-attachments.sh /opt/save-attachments.sh
+
 # install packages
 RUN apt-get update \
     && apt-get install -y fetchmail maildrop mpack \
@@ -12,13 +15,10 @@ RUN apt-get update \
 RUN maildirmake /var/mail/working \
     && mkdir /var/mail/working/landing \
     && mkdir /var/mail/working/extracted \
-    && echo "to /var/mail/working" > /root/.mailfilter
-RUN touch /var/mail/save-attachments.log
-
-ADD save-attachments.crontab /etc/cron.d/save-attachments
-ADD save-attachments.sh /opt/save-attachments.sh
-RUN chmod 0644 /etc/cron.d/save-attachments
+    && echo "to /var/mail/working" > /root/.mailfilter \
+    && touch /var/mail/save-attachments.log \
+    && chmod 0644 /etc/cron.d/save-attachments
 
 ADD docker-entrypoint.sh /opt/docker-entrypoint.sh
 ENTRYPOINT ["/opt/docker-entrypoint.sh"]
-CMD cron && tail -f /var/mail/save-attachments.log
+CMD ["cron"]

docker-entrypoint.sh

@@ -9,6 +9,7 @@ else
 	mkdir /var/mail/working/landing
 	mkdir /var/mail/working/extracted
 	echo "to /var/mail/working" > /root/.mailfilter
+	touch /var/mail/save-attachments.log
 fi
 
 # check for user config fetchmailrc
@@ -35,6 +36,7 @@ then
 	update-ca-certificates
 fi
 
+echo "$1"
 if [ "$1" = 'cron' ] || [ "$1" = '/opt/save-attachments.sh' ]; then
 	if [ ! -f /root/.fetchmailrc ]; then
 		echo "Cannot start container without .fetchmailrc"
@@ -42,4 +44,8 @@ if [ "$1" = 'cron' ] || [ "$1" = '/opt/save-attachments.sh' ]; then
 	fi
 fi
 
-exec "$@"
+if [ "$1" = 'cron' ]; then
+	exec /usr/sbin/cron && tail -f /var/mail/save-attachments.log
+else
+	exec "$@"
+fi