On Fri, Oct 23, 2020 at 04:27:34PM +0000, Harold Pritchett wrote: > I'm trying to install DB2 on a CentOS 7 server. The problem I'm > seeing is that the Apache httpd server fails to pick up the db2 > environment variables. On an older version running under CentOS 5 > this was done by inserting the following lines into the httpd start > script in /etc/sysconfig/httpd: > > if test -f /db2home/db2inst1/sqllib/db2profile; then > . /db2home/db2inst1/sqllib/db2profile > fi > > Under CentOS 7's systemctl system this no longer works. I need a > clue as to where to start looking for where to put this so it will > be sourced when the Apache server starts. I have googled this and > can find nothing relevant. I even did a "find / -name httpd -print" > and didn't find anything looking promising. In non-systemd systems, httpd was started by a shell script (/etc/rc.d/init.d/httpd) which sourced the file /etc/sysconfig/httpd, so you could embed shell code in the file and it would be evaluated. In systemd systems, the httpd.service unit has: EnvironmentFile=/etc/sysconfig/httpd For systemd units, setting this will cause the systemd unit to read in the file for variables, but it ignores anything that isn't a simple 'foo=bar' syntax. It doesn't evaluate shell scripts. HOWEVER, the logic of your shell script is something that can be supported by systemd units. You can say: EnvironmentFile=-/db2home/db2inst1/sqllib/db2profile and it will only try to source that file for variables if it exists. So, what you should do is create a directory and file within it called: /etc/systemd/system/httpd.service.d/override.conf With these two lines in it: [Service] EnvironmentFile=-/db2home/db2inst1/sqllib/db2profile Then run (as root) 'systemctl daemon-reload', and it should conditionally load the environment variables on startup from that file if the file exists. This assumes that /db2home/db2inst1/sqllib/db2profile doesn't have more shell syntax in it, of course. See for more details: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#EnvironmentFile= -- Jonathan Billings <billings at negate.org>