updated the packaged to enable JAVA_OPTS to override the defaults
ammended JAVA_OPTS being exported
ammend warning wording
ammend the last commit
fix wording again
Fixes#2942
remove stale code
cleanup the bash conditions for when a variable is defined or not
make sure LS_JAVA_OPTS override JAVA_OPTS when need
ammend unused var
rollback to previous use case of appending vars to JAVA_OPTS in the case of having LS_JAVA_OPTS
Fixes#2942
This resolves a few inconsistencies and issues in the generated packages
for Debian/Ubuntu:
* Creates /etc/logstash/conf.d
* Installs a basic defaults file in /etc/default/logstash (which also sets HOME)
* Stops creating /var/run/logstash (unused)
* Uses /var/lib/logstash as the home directory of the logstash user instead of /home/logstash
* Defaults package files to be owned by root, fixes ownership in post-install script
* Properly stops service when removing the package on Debian
The end result is that after installing, LogStash will pretty much "just
work" with only 2 changes:
1) Enable START=yes in /etc/default/logstash
2) Provide a config for the LogStash agent
