Re: How to convert a standar apps, to a Service
On Wed, 27 Apr 2011 Alec T. Habig wrote snip - much good advice logging (have it log status information, ideally with customizeable log levels, to the appropriate place), What about the logrotate part to correctly rotate logs so they don't grow infinitely NB I notice SL5 by default rotates on size not date (as SL4 did); this is good. Rather a few not-too-big logfiles (good default) than many mostly empty rotated dutifully but pointlessly once a week or whatever.
Re: How to convert a standar apps, to a Service.
On 28 April 2011 07:27, Florian Philipp li...@binarywings.net wrote: There is also libdaemon which is meant to facilitate converting your program into a proper daemon (not tried it, though). BTW: It is a shame that SL does not contain the start-stop-daemon like Gentoo or Ubuntu (http://manpages.ubuntu.com/manpages/dapper/en/man8/start-stop-daemon.8.html). It makes converting arbitrary executables into daemons a matter of minutes. Regards, Florian Philipp What about upstart in SL6?
Re: How to convert a standar apps, to a Service.
2011/4/28 William Scott will...@magicwilly.info On 28 April 2011 07:27, Florian Philipp li...@binarywings.net wrote: There is also libdaemon which is meant to facilitate converting your program into a proper daemon (not tried it, though). BTW: It is a shame that SL does not contain the start-stop-daemon like Gentoo or Ubuntu ( http://manpages.ubuntu.com/manpages/dapper/en/man8/start-stop-daemon.8.html ). It makes converting arbitrary executables into daemons a matter of minutes. Regards, Florian Philipp What about upstart in SL6? Am test and make it to work over SL 5.5, but am think that in SL6, this will work OK. Why not?? -- Pablo Cavero System Engineer +569 8920 9509
How to convert a standar apps, to a Service.
Hello, I have an apps, and I want to convert this to a service. I have the source in C, and the binary executable. Think for example, in the ultra vnc repeater. http://sourceforge.net/projects/ultravnc/files/Repeater/win32%20and%20unix%20Repeaters/ The Only that I need is a set of bash script, like script used by the tomcat, for example, or need a special binary executable?? http://www.laliluna.de/articles/tomcat-startup-script-linux.html I want to may will use chkconfig, like an standar service. Thank a lot, for your comments, -- Pablo Cavero System Engineer +569 8920 9509
Re: How to convert a standar apps, to a Service.
Pablo Cavero writes: The Only that I need is a set of bash script, like script used by the tomcat, for example, or need a special binary executable?? http://www.laliluna.de/articles/tomcat-startup-script-linux.html I want to may will use chkconfig, like an standar service. The chkconfig script part is easy, just look in /etc/rc.d/init.d, steal an existing service's script, and modify it to run what you want. Note the commented line at the top starting with chkconfig - that information specifies the run levels chkconfig will set it up to be activated in, and the startup/shutdown priority. As for the code you run, that gets trickier. All the startup scripts do is start and stop things. Those things could be more scripts, executables, or combinations thereof. Areas to pay attention to with your code (to get it to behave nicely when run this way) include: getting it daemonized properly (dropping and/or redirecting IO streams), privilege seperation (can it run as a non privleged user? if so, do that, if not, be really careful and have only the bare minimum code run with elevated privileges), logging (have it log status information, ideally with customizeable log levels, to the appropriate place), and signal handling so it shuts down cleanly when told to, reloads configuration files if asked, etc. -- Alec Habig, University of Minnesota Duluth Physics Dept. ha...@neutrino.d.umn.edu http://neutrino.d.umn.edu/~habig/
Re: How to convert a standar apps, to a Service.
Am 27.04.2011 22:54, schrieb Alec T. Habig: Pablo Cavero writes: The Only that I need is a set of bash script, like script used by the tomcat, for example, or need a special binary executable?? http://www.laliluna.de/articles/tomcat-startup-script-linux.html I want to may will use chkconfig, like an standar service. The chkconfig script part is easy, just look in /etc/rc.d/init.d, steal an existing service's script, and modify it to run what you want. Note the commented line at the top starting with chkconfig - that information specifies the run levels chkconfig will set it up to be activated in, and the startup/shutdown priority. As for the code you run, that gets trickier. All the startup scripts do is start and stop things. Those things could be more scripts, executables, or combinations thereof. Areas to pay attention to with your code (to get it to behave nicely when run this way) include: getting it daemonized properly (dropping and/or redirecting IO streams), privilege seperation (can it run as a non privleged user? if so, do that, if not, be really careful and have only the bare minimum code run with elevated privileges), logging (have it log status information, ideally with customizeable log levels, to the appropriate place), and signal handling so it shuts down cleanly when told to, reloads configuration files if asked, etc. There is also libdaemon which is meant to facilitate converting your program into a proper daemon (not tried it, though). BTW: It is a shame that SL does not contain the start-stop-daemon like Gentoo or Ubuntu (http://manpages.ubuntu.com/manpages/dapper/en/man8/start-stop-daemon.8.html). It makes converting arbitrary executables into daemons a matter of minutes. Regards, Florian Philipp signature.asc Description: OpenPGP digital signature
Re: How to convert a standar apps, to a Service - WORKING!!
Thanks a lot, for everyone. The Ultra VNC Repeater, release 17 include the scripts and sources to make the compiling, and the installing. But, the problem is that in Scientific Linux, have not the start-stop-deamon apps. Downloanding and compiling this, and adding the start-stop-deamon binary executable to the /sbin directory, all work so fine. A few configuration on the uvncrepeater.ini and All Rigths. If someone need any more details, to make this implementation, only tell me how I can help you. Best Regards, Pablo Cavero. System Engineer 2011/4/27 Florian Philipp li...@binarywings.net Am 27.04.2011 22:54, schrieb Alec T. Habig: Pablo Cavero writes: The Only that I need is a set of bash script, like script used by the tomcat, for example, or need a special binary executable?? http://www.laliluna.de/articles/tomcat-startup-script-linux.html I want to may will use chkconfig, like an standar service. The chkconfig script part is easy, just look in /etc/rc.d/init.d, steal an existing service's script, and modify it to run what you want. Note the commented line at the top starting with chkconfig - that information specifies the run levels chkconfig will set it up to be activated in, and the startup/shutdown priority. As for the code you run, that gets trickier. All the startup scripts do is start and stop things. Those things could be more scripts, executables, or combinations thereof. Areas to pay attention to with your code (to get it to behave nicely when run this way) include: getting it daemonized properly (dropping and/or redirecting IO streams), privilege seperation (can it run as a non privleged user? if so, do that, if not, be really careful and have only the bare minimum code run with elevated privileges), logging (have it log status information, ideally with customizeable log levels, to the appropriate place), and signal handling so it shuts down cleanly when told to, reloads configuration files if asked, etc. There is also libdaemon which is meant to facilitate converting your program into a proper daemon (not tried it, though). BTW: It is a shame that SL does not contain the start-stop-daemon like Gentoo or Ubuntu ( http://manpages.ubuntu.com/manpages/dapper/en/man8/start-stop-daemon.8.html ). It makes converting arbitrary executables into daemons a matter of minutes. Regards, Florian Philipp -- Pablo Cavero System Engineer +569 8920 9509
