Comment 9 for bug 1933109

Hi Dmitrii, thanks for looking into this!

root@juju-382713-0-lxd-9:~# sudo systemctl show-environment
LANG=C.UTF-8
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin

Here's an Apache env:

root@juju-382713-0-lxd-9:~# ps auxf | grep apache
root 4115446 0.0 0.0 8164 676 pts/0 S+ 16:32 0:00 \_ grep --color=auto apache
root 3693257 0.0 0.0 13840 5308 ? Ss 10:17 0:00 /usr/sbin/apache2 -k start
www-data 3693262 0.0 0.0 2008176 11784 ? Sl 10:17 0:00 \_ /usr/sbin/apache2 -k start
www-data 3693263 0.0 0.0 2008320 11784 ? Sl 10:17 0:00 \_ /usr/sbin/apache2 -k start

root@juju-382713-0-lxd-9:~# xargs -0 -L1 -a /proc/3693257/environ
APACHE_RUN_DIR=/var/run/apache2
APACHE_PID_FILE=/var/run/apache2/apache2.pid
JOURNAL_STREAM=9:338582662
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
INVOCATION_ID=157dbb53c2aa4eb6b87b1d7e572b2ae8
APACHE_LOCK_DIR=/var/lock/apache2
LANG=C
APACHE_RUN_USER=www-data
APACHE_RUN_GROUP=www-data
APACHE_LOG_DIR=/var/log/apache2
PWD=/

For the record, Keystone workers forked from apache2 process have exactly the same environment variables.