On Sat, 28 Jun 2014 11:36:11 +0200, J. Roeleveld wrote: > I need a way to add dependencies to services which are provided by > different servers. For instance, my mail server uses DNS to locate my > LDAP server which contains the mail aliases. All these are running on > different machines. Currently, I manually ensure these are all started > in the correct sequence, I would like to automate this to the point > where I can start all 3 servers at the same time and have the different > services wait for the dependency services to be available even though > they are on different systems. > > All the dependency systems in the init-systems I could find are all > based on dependencies on the same server. Does anyone know of something > that can already provide this type of dependencies? Or do I need to > write something myself?
With systemd you can add ExecStartPre=/some/script to the service's unit file where /some/script waits for the remote services to become available, and possibly return an error if the service does not become available within a set time. -- Neil Bothwick I have a mind like a steel...uh...thingamajig...
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