Reset entries for syslog-ng stderr and stdout redirects in the persis…

…t-file

syslog-ng tracks the offset but could not identify a re-write of a file that results in the same file length. This prevent marking the version of sc4s in the internal logs which is confusing for the end user

package/Dockerfile

@@ -18,7 +18,7 @@ COPY etc/conf.d /opt/syslog-ng/etc/conf.d
 COPY etc/go_templates /opt/syslog-ng/etc/go_templates
 COPY etc/context_templates /opt/syslog-ng/etc/context_templates
 COPY etc/local_config /opt/syslog-ng/etc/local_config
-
+COPY reset_persist /opt/syslog-ng/etc/
 COPY sbin/entrypoint.sh /
 
 COPY VERSION /

package/reset_persist

@@ -0,0 +1,3 @@
+affile_sd_curpos(/opt/syslog-ng/var/log/syslog-ng.out) = { "value": "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 " }
+
+affile_sd_curpos(/opt/syslog-ng/var/log/syslog-ng.err) = { "value": "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 " }

package/sbin/entrypoint.sh

@@ -27,4 +27,5 @@ echo sc4s version=$(cat /VERSION) >/opt/syslog-ng/var/log/syslog-ng.out
 /opt/syslog-ng/sbin/syslog-ng -s >>/opt/syslog-ng/var/log/syslog-ng.out 2>/opt/syslog-ng/var/log/syslog-ng.err
 
 echo syslog-ng starting
+/opt/syslog-ng/bin/persist-tool add /opt/syslog-ng/etc/reset_persist -o /opt/syslog-ng/var
 exec /opt/syslog-ng/sbin/syslog-ng $@