issue with Debian Stretch postinst when attempting to build a Docker image

[fred49]

Hi, I'm trying to build a docker image using OpenLDAP LTB project and I have an issue with the postinst script. It requires to have systemctl installed. I don't want to compile openldap, I want reuse Debian packages even if it is no perfect. So is it possible to test if systemctl exists and then call it ?

Fred.

[davidcoutadeur]

Hi, The best way would be to call the slapd-cli script from postinst.

1. slapd-cli is always present
2. anyway, systemd script is calling slapd-cli, so it is more efficient to call slapd-cli directly.

-> TODO

[fmartin-linagora]

Hi, sorry but you can't use your solution because you still have to enable your service. Cf current lines of code :

systemctl enable slapd || exit $?
systemctl start slapd || exit $?

[davidcoutadeur]

Hi @fmartin-linagora The solution I propose:

if systemd available: keep the current behaviour else: start process with slapd-cli, but don't set "start on boot"

[davidcoutadeur]

As discussed, the better for docker is not to start OpenLDAP. So:

if systemd available: keep the current behaviour
else: do nothing (don't start on boot, don't start slapd-cli now)

[davidcoutadeur]

Also, another improvement is to check the presence of rsyslog before configuring the logs.

[davidcoutadeur]

Done in https://github.com/ltb-project/openldap-deb/releases/tag/v2.4.48

[davidcoutadeur]

Error reproduced installing with docker:

• FROM debian:stable
• packages: openldap-ltb openldap-ltb-contrib-overlays openldap-ltb-mdb-utils openldap-ltb-ppm
• the error incriminate directly systemctl

-> Investigate the problem -> see if this is specific to debian, else reopen issue in rpm repository

[davidcoutadeur]

New tests on docker + OpenLDAP 2.5 show no problem

See #71