Alright, so sounds good :) At least if you know the risks, you can easily replicate "background => true" functionality yourself, and provided you know what's involved, the reasons we're deprecating it need not apply to you. As well you seem to know, nohup and & together are important, and so can be redirecting stdout/err to a file that isn't bound to the SSH TTY that Capistrano creates.
Lee Hambley http://lee.hambley.name/ +49 (0) 170 298 5667 On 18 December 2015 at 18:30, Carlos Peñas <[email protected]> wrote: > > On Friday, 18 December 2015 17:03:17 UTC+1, Lee Hambley wrote: >> >> First of all, well read - the `:background => true` is deprecated, >> because backgrounding things is hard, and unreliable, basically as you >> might have seen all it does it `nohup` and `&` if memory serves. >> > > Yes I noticed :) I Like to be informed before ask > > > >> So there's two things you can do, the one - as you alluded to is `&` on >> the end of the line. The other would be `nohup` yourself, it'd be >> interesting to know *what* you are trying to background, as weird processes >> refuse to play well in the background in different ways. >> > > The whole thing is to put "on background" a three line bash script that > makes a "aws ec2 wait snapshot-completed" (no loops, no forks, no services, > straight and simple thing that can work or not, but doesn't affect the > deploy) and inform of the result by slack, for a snapshot that I asked to > create in the previous commands of the capistrano task. The task just > creates an snapshot of the deployed app EBS, but these snapshots sometimes > take a bit to complete, that's why I want to "fire and forget" that script > (it gives independent feedback, also) > > >> Let's see if we can solve this for you :) >> > > Well I'm very aware of the imitations of nohups, job control and the like, > perhaps I can mimic the :background to get my own "non-deprecated" > background and do my own tests. I know that fork processes over ssh > conections can work for certain use cases, but cannot be guaranteed for all > the use cases ;) > > Thanks! > > -- > You received this message because you are subscribed to the Google Groups > "Capistrano" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/capistrano/9c7e5aec-7a79-4326-80a8-713e34f0e00d%40googlegroups.com > <https://groups.google.com/d/msgid/capistrano/9c7e5aec-7a79-4326-80a8-713e34f0e00d%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Capistrano" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/capistrano/CAN_%2BVLVYJvmjSQ-ruVhmEZBV3y44mkpPDS3_rw2LAQjqyDvBbw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
