Re: How should the systemd setup in a postinst script look?

[Steinar Bang <sb@dod.no>]

>>>>> Eugene Zhukov <eugene@debian.org>:

> The service will be enabled and started automatically upon package
> install, you don't need to do that.

> Just put your <package_name>.service file into debian/ folder and the
> rest will be handled by Debian tools.
> The line in debian/rules quoted below is also needed. Don't forget to
> add dh-systemd into build-depends of your package.

Thanks!

I did the following:
 1. Moved the karaf.service file to the debian/ directory
 2. Made build-depend to version 10 or larger of debhelper
 3. Removed all systemd enabling, start, update and purge from
    debian/karaf.postinst and debian/karaf.postrm 
 4. Changed the "%:" rule of debian/rules to be
         dh $@ --with systemd

Then I ran dpkg-buildpackage

Then I ran lintian on the package:
 sb@lorenzo:~/git/karaf-debian$ lintian ~/git/karaf_4.1.4-8~9.30_all.deb 
 W: karaf: init.d-script-not-marked-as-conffile etc/init.d/karaf
 E: karaf: init.d-script-not-included-in-package etc/init.d/karaf
 W: karaf: codeless-jar usr/share/karaf/system/org/apache/aries/blueprint/org.apache.aries.blueprint.core.compatibility/1.0.0/org.apache.aries.blueprint.core.compatibility-1.0.0.jar
 W: karaf: codeless-jar usr/share/karaf/system/org/apache/karaf/demos/4.1.4/demos-4.1.4.jar
 sb@lorenzo:~/git/karaf-debian$

(Note: I'm not concerned with the codeless jars right now.  That's for
later. There are more of them than the two jars reported above...)

When I look in the debian/directory, there are some new files with
extension .debhelper:
   ...
  -rw-r--r-- 1 sb sb  560 Jan 26 17:14 karaf.postinst
  -rw-r--r-- 1 sb sb  257 Jan 26 17:18 karaf.postinst.debhelper
  -rw-r--r-- 1 sb sb  274 Jan 26 17:15 karaf.postrm
  -rw-r--r-- 1 sb sb  340 Jan 26 17:18 karaf.postrm.debhelper
  -rw-r--r-- 1 sb sb  690 Jan 22 22:23 karaf.prerm
  -rw-r--r-- 1 sb sb  148 Jan 26 17:18 karaf.prerm.debhelper
  -rw-r--r-- 1 sb sb 1151 Jan 25 20:23 karaf.service
  ...

Looking at the karaf.postinst.debhelper script it tries to create a SYSV
service for karaf:
 # Automatically added by dh_installinit
 if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
 	if [ -x "/etc/init.d/karaf" ]; then
 		update-rc.d karaf defaults >/dev/null
 		invoke-rc.d karaf start || exit $?
 	fi
 fi
 # End automatically added section

What am I missing?

The karaf.postrm.debhelper removes a SYSV initd service in purge, and
does a "systemctl --system daemon-reload" after that (ie. for all
invocations of the script).

The karaf.prerm.debhelper stops a SYSV initd service.

Thanks in advance, for pointers and hints to what I'm doing wrong.


- Steinar


PS Since they didn't work as expected, I haven't yet pushed my latest changes to
 https://github.com/steinarb/karaf-debian