I've submitted a sendmail version with direct systemd support. As I use ExecStartPre=-/usr/bin/make -C /etc/mail I've added aome make(file) magic to generate an enviroment file /var/run/sendmail.port which defines the variable SENDMAIL_PORT_OPTS accordingly to /etc/sysconfig/sendmail IMHO systemd unit file scheme seems to miss a primitive scripting possiblity. On Fri, Aug 05, 2011 at 12:02:39PM +0200, Werner Fink wrote:
Hi,
for bug bnc#710279 I'm also have look how to switch over to systemd unit configuration files for starting sendmail MTA and also sendmail client mail queue handler.
Currently I have for the MTA process an smtp.socket file with
[Unit] Description=SMTP Socket DefaultDependencies=no
[Socket] ListenStream=25 FreeBind=true Accept=false Service=sendmail.service
and the service unit sendmail.service:
[Unit] Description=Sendmail Mail Transport Agent After=nss-lookup.target network.target remote-fs.target syslog.target rtc-set.target Wants=amavis.service cyrus.service ldap.service nscd.service ypbind.service Conflicts=postfix.service exim.service
[Service] Type=forking Environment=SENDMAIL_ARGS=-L sendmail -Am -bd -q30m -om EnvironmentFile=-/etc/sysconfig/mail EnvironmentFile=-/etc/sysconfig/sendmail PIDFile=/var/run/sendmail.pid ExecStartPre=-/usr/bin/make -C /etc/mail ExecStart=/usr/sbin/sendmail $SENDMAIL_ARGS
[Install] WantedBy=mail-transfer-agent.target Also=sendmail-client.service
... now the question is: will this work, that is start sendmail MTA on demand if `systemctl enable smtp.socket' was executed? Or is it better to switch in sendmail.service to multi-user.target for WantedBy?
For the sendmail client mail queue handler I've path unit sendmail-client.path with:
[Unit] Description=Sendmail Client Mail Queue Watcher
[Path] DirectoryNotEmpty=/var/spool/clientmqueue/
[Install] WantedBy=multi-user.target
to be able to start the service unit sendmail-client.service:
[Unit] Description=Sendmail Mail Transport Client After=smtp-local.socket
[Service] Type=forking Environment=SENDMAIL_CLIENT_ARGS=-L sendmail-client -Ac -qp30m EnvironmentFile=-/etc/sysconfig/mail EnvironmentFile=-/etc/sysconfig/sendmail PIDFile=/var/spool/clientmqueue/sm-client.pid ExecStartPre=/bin/touch /var/spool/clientmqueue/sm-client.pid ExecStartPre=/bin/chown mail:mail /var/spool/clientmqueue/sm-client.pid ExecStartPre=/bin/chmod 0600 /var/spool/clientmqueue/sm-client.pid ExecStartPre=-/usr/bin/make -C /etc/mail ExecStart=/usr/sbin/sendmail $SENDMAIL_CLIENT_ARGS
[Install] WantedBy=mail-transfer-agent.target
Does this work? Together with a unit smtp-local.socket it should be possible to start the sendmail MTA if not already up:
[Unit] Description=Local SMTP Socket DefaultDependencies=no
[Socket] ListenStream=25 BindToDevice=lo Accept=false Service=sendmail.service
IMHO this will only used if no process is listen on localhost port 25 or is this wrong? The manual pages of systemd do not show what happens is a port is already busy due an other way of enabling the MTA.
Currently I've not found a way to port
PortOpts="" for cfg in /etc/sendmail.cf /etc/mail/sendmail.cf do test -s $cfg || continue PortOpts=$(sed -rn '/^O[[:blank:]]+DaemonPortOptions=.*Name=MTA.*$/I { s/[[:blank:]]+//g s/^O[^=]+=(.*)/\1/p }' $cfg) break done unset cfg
if test "$SMTPD_LISTEN_REMOTE" != "yes" ; then PortOpts="${PortOpts:+${PortOpts},}Addr=127.0.0.1" SENDMAIL_ARGS="-O DaemonPortOptions=${PortOpts} $SENDMAIL_ARGS" fi
from /etc/init.d/sendmail to the service unit sendmail.service. With this there is a control if the MTA is listen on port 25 of any remote network interface or if not. How can this be done within a systemd service unit (without using a wrapper script)?
Werner -- "Having a smoking section in a restaurant is like having a peeing section in a swimming pool." -- Edward Burr -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org