I have a systemd service script which I would like to convert to a launchd service script to use for macOS. How would I approach this?
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I want to restart a service via init.d file on AIX. Ansibles service and sysvinit didn't work. How to control those services using Ansible.
I know I could run a shell command but maybe there is a builtin solution.
This is, what I would do on a shell:
/etc/rc.d/init.d/nrpe restart
From the docs of the service builtin:
Controls services on remote hosts. Supported init systems include BSD init, OpenRC, SysV, Solaris SMF, systemd, upstart.
Basically the service module tries to auto-detect which init system is used and perform the action using that init system. But if your init system does not know about the service (you are running the init script directly, right?) it (the init system) will not be able to restart it.
So you can not use the service module or any other module that tries to interact with your init system, if the init system is not aware of your service.
You should put your init script into the correct directory for your init system to recognize it (then you can also run service nrpe restart) and then use the service module.
If you can not do that for some reason, you will need to use the command or shell module to restart your service.
I want to run a custom bash script before httpd service is started with systemd. I'm using Centos 7.
Any idea?
Kind regards.
Assuming your httpd service is named httpd.service, create a directory /etc/systemd/system/httpd.service.d; and create a file named run-my-script-first.conf (or whatever you like) within it with the following contents:
[Service]
ExecStartPre=/path/to/your/script
How can I inject/generate systemd unit (service) files from a script or program, for example a Bash-script or Python-script?
Should I use a library (in e.g. Python) (which library?) or should I create raw unit files in the filesystem and then use the systemctl command? Is a systemctl daemon-reload necessary? Maybe the systemd C-API supports this?
Is it a good pattern/practice? Should I develop an application that is started by systemd which then starts the commands, this means: Should I outsource the starting-procedure to my application or should I left that at systemd?
I am new to systemd service scripts. I am trying to start my application from systemd service scripts. My application is a process that in turn invokes multiple process that includes Qt GUI as one of its child. But the service downt starting up my application.
This is how my service looks like:
[Unit]
Description=/etc/rc.d/rc.local Compatibility
ConditionFileIsExecutable=/etc/rc.d/rc.local
After=network.target
[Service]
Type=forking
ExecStart=/etc/rc.d/rc.local start
SysVStartPriority=99
rc.local script looks like:
#!/bin/bash
export DISPLAY=:0
sleep 5
cd /var/MINC3/apps
./PMonTsk
So when try to run the command "systemctl start rc-local.service", the command executes the script but doesnt invoke my application. If I replace some other QT GUI sample application in the plcae of my application in rc.local, it is working fine. Please help me on sorting this issue.
If you add
[Install]
WantedBy=multi-user.target
I think it will work ;)
I found solution for the above problem. I modified my service in the following way. It works fine after the modification.
[Unit]
Description=/etc/rc.d/rc.local Compatibility
ConditionFileIsExecutable=/etc/rc.d/rc.local
After=network.target
[Service]
Type=forking
ExecStart=/etc/rc.d/rc.local start
ControlGroup=cpu:/
SysVStartPriority=99
I need to stop/start an application service on Unix, while I being on windows. I don't want to do putty and login to unix server and stop service.
What batch script I can write to do this from windows?
If you don't want to do this manually, make sure you can run the ssh command from your batch file (by instaling it and extending your PATH if necessary to where it is installed) and do:
ssh root#your-system-name stop service-name
ssh root#your-system-name start service-name
This assumes that your linux machine has start and stop commands, otherwise you might need to invoke /etc/init.d/service-name stop or other Linux distro specific command.