On Thu, Oct 22, 2015 at 12:52 AM, Sergey Vasilenko <[email protected]> wrote:
> > On Thu, Oct 22, 2015 at 6:16 AM, Matt Fischer <[email protected]> > wrote: > >> I thought we had code in other places that split out stderr and only >> logged it if there was an actual error but I cannot find the reference now. >> I think that matches the original proposal. Not sure I like idea #3. > > > Matthew, this topic not about SSL. ANY warnings, ANY output to stderr from > CLI may corrupt work of providers from puppet-* modules for openstack > components. > > IMHO it's a very serious bug, that potential affect openstack puppet > modules. > > I see 3 way for fix it: > > 1. Long way. big patch to puppet core for add ability to collect > stderr and stdout separately. But most of existing puppet providers waits > that stderr and stdout was mixed when handle errors of execution (non-zero > return code). Such patch will broke backward compatibility, if will be > enabled by default. > 2. Middle way. We should write code for redefine 'commands' method. > New commands should collect stderr and stdout separately, but if error > happens return stderr (with ability access to stdout too). > 3. Short way. Modify existing providers to use json output instead > plain-text or csv. JSON output may be separated from any garbage (warnings) > slightly. I make this patch as example of this way: > https://review.openstack.org/#/c/238156/ . Anyway json more formalized > format for data exchange, than plain text. > > IMHO way #1 is a best solution, but not easy. > > I must confess that I'm a bit confused about this. It wasn't a secret that we're calling out to commands and parsing the output. It's been discussed over and over on this list as recently as last week, so this has been a known possible issue for quite a long time. In my original email I was agreeing with you, so I'm not sure why we're arguing now. Anyway... I think we need to split stderr and stdout and log stderr on errors, your idea #2. Using json like openstack-client can do does not solve this problem for us, you still can end up with a bunch of junk on stderr. This would be a good quick discussion in Tokyo if you guys will be there.
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