On Thursday, 30 March 2017 16:11:35 UTC+1, Warron French wrote: > > Hi Luke, I have some questions for you. > > First, the link= > https://github.com/puppetlabs/puppetlabs-apache/blob/master/lib/facter/apache_version.rb > > didn't have any reference to awk at all, was this the file you intended to > suggest? > > Oh, I wasn't giving you Awk examples specifically, I was giving you one with a small amount of Ruby, and one with a bit more Ruby and some string manipulation in it. The use of Awk and piped shell commands in my Fact there is 100% pure laziness, it would be more "robust" to do all of the string manipulation in Ruby.
> Secondly, the link= > https://github.com/LMAX-Exchange/puppet-networking-example/blob/master/lib/facter/interface_ringbuffer.rb > > did have a reference to awk; thank you. > However, the syntax: > ethtool_g = %x{/sbin/ethtool -g #{int} 2>/dev/null | grep -P > '^(RX|TX):' | awk '{print $2}'} > > Looks like something other than just plain shell scripting, so can you > break this down for me just a little bit? > > I recognize what looks like a variable, called ethtool_g, and then it > continues with assignement based on %x{.......} where the "...." is your > shell scripting. > > What is the *%x* a reference for/to? Can I simply replace your variable > with one of my own, and your shell scripting between the curly braces with > my own shell scripting? > Correct, ethtool_g is a Ruby variable. %x{} is one of the ways of executing something in a Shell and getting it's STDOUT, there are other ways, this post explains it well: http://stackoverflow.com/questions/2232/calling-shell-commands-from-ruby the #{int} is embedding a Ruby variable called 'int' defined earlier into the string. Is that legal, and is this in the language of ruby (so I have a reference > point of where to go to look up more examples? > Yes, you can. What I would recommend is copy one of those Facts to your homedir, then set an environment variable FACTERLIB=/home/$USERNAME, which sets an extra Facter search path to your homedir. If you then run "facter -p" you should see the new Fact in the list. Then you can edit your Fact to your heart's content, and Google every crash or error message you come up with ;-) Once it actually works you can add the Fact to a module and distribute it to servers. -Luke > Sorry for the load of questions. Thank you for the information. > > -------------------------- > Warron French > > > On Thu, Mar 30, 2017 at 11:03 AM, warron.french <warron...@gmail.com > <javascript:>> wrote: > >> Hey, thanks for the examples Luke! I am looking at them now. >> >> -------------------------- >> Warron French >> >> >> On Thu, Mar 30, 2017 at 8:31 AM, Luke Bigum <luke....@lmax.com >> <javascript:>> wrote: >> >>> Puppet modules on Github are a good source. I've found a simple one: >>> >>> >>> https://github.com/puppetlabs/puppetlabs-apache/blob/master/lib/facter/apache_version.rb >>> >>> And one of my own that's a little more complicated: >>> >>> >>> https://github.com/LMAX-Exchange/puppet-networking-example/blob/master/lib/facter/interface_ringbuffer.rb >>> >>> -Luke >>> >>> On Thursday, 30 March 2017 13:10:35 UTC+1, Warron French wrote: >>>> >>>> Joshua, thanks for this feedback. I don't really know ruby; can you >>>> offer some ideas of where I can find other Puppet Facts written in Ruby >>>> that don't look like my originally posted example? >>>> >>>> Thank you sir. >>>> >>>> -------------------------- >>>> Warron French >>>> >>>> >>>> On Tue, Mar 28, 2017 at 10:51 AM, Joshua Schaeffer < >>>> jschaef...@gmail.com> wrote: >>>> >>>>> External facts are a Puppet v4 feature only. You have to use Ruby to >>>>> create custom facts in Puppet v3. >>>>> >>>>> On Monday, March 27, 2017 at 3:54:00 PM UTC-6, Warron French wrote: >>>>>> >>>>>> OK, done, and done. But it still isn't showing up. >>>>>> >>>>>> Is this potentially because I am using PE-3.8 as a component of Red >>>>>> Hat Satellite? >>>>>> >>>>>> -------------------------- >>>>>> Warron French >>>>>> >>>>>> >>>>>> On Mon, Mar 27, 2017 at 5:28 PM, Peter Bukowinski <pmb...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> Hi Warron, >>>>>>> >>>>>>> Puppet executes the script directly, so you need the shebang line >>>>>>> and you must ensure the file is executable. >>>>>>> >>>>>>> -- Peter >>>>>>> >>>>>>> On Mar 27, 2017, at 2:25 PM, warron.french <warron...@gmail.com> >>>>>>> wrote: >>>>>>> >>>>>>> Peter, perhaps I misunderstood you; but, I thought I was supposed to >>>>>>> be able to use bash or sh scripting to generate facters of my own >>>>>>> without >>>>>>> the use of Ruby. >>>>>>> >>>>>>> The link you provided refers to a python script example. It also >>>>>>> adds a shebang line at the top of the script; do I need the shebang >>>>>>> line, >>>>>>> or will Puppet simply execute the shell script with: >>>>>>> >>>>>>> sh scriptname.sh >>>>>>> >>>>>>> Thanks for the feedback, >>>>>>> >>>>>>> -------------------------- >>>>>>> Warron French >>>>>>> >>>>>>> >>>>>>> On Wed, Mar 22, 2017 at 7:07 PM, Peter Bukowinski <pmb...@gmail.com> >>>>>>> wrote: >>>>>>> >>>>>>>> Hi Warron, >>>>>>>> >>>>>>>> I'd consider using an external, executable fact to avoid ruby >>>>>>>> altogether. >>>>>>>> >>>>>>>> >>>>>>>> https://docs.puppet.com/facter/3.6/custom_facts.html#executable-facts-----unix >>>>>>>> >>>>>>>> Basically, you can write a bash script (or use any language you >>>>>>>> want), >>>>>>>> drop it into '<MODULEPATH>/<MODULE>/facts.d/' on your puppet server, >>>>>>>> and it will be synced to all your nodes (assuming you use >>>>>>>> pluginsync). >>>>>>>> >>>>>>>> The only requirement for executable fact scripts is that they must >>>>>>>> return key/value pairs in the format 'key=value'. Multiple >>>>>>>> keys/values >>>>>>>> get their own line. In your case, you could do something like this: >>>>>>>> >>>>>>>> ----- >>>>>>>> #!/bin/bash >>>>>>>> >>>>>>>> key="qty_monitors_total" >>>>>>>> value=$(your parsing command for /var/log/Xorg.0.log here) >>>>>>>> >>>>>>>> echo "${key}=${value}" >>>>>>>> ----- >>>>>>>> >>>>>>>> Save the file as an executable script in the above mentioned path >>>>>>>> and >>>>>>>> it should be available on the next puppet run. >>>>>>>> >>>>>>>> On Wed, Mar 22, 2017 at 3:24 PM, warron.french <warron...@gmail.com> >>>>>>>> wrote: >>>>>>>> > Hello, I have finally learned how to write a Custom Fact; and >>>>>>>> duplicated the >>>>>>>> > syntax several times over inside the same .rb file. >>>>>>>> > >>>>>>>> > I am using syntax that looks like the following: >>>>>>>> > >>>>>>>> > Facter.add('qty_monitors_total') do >>>>>>>> > setcode do >>>>>>>> > Facter::Util::Resolution.exec('/bin/grep " connected" >>>>>>>> > /var/log/Xorg.0.log | cut -d\) -f2,3,4 | grep GPU |sort -u | wc >>>>>>>> -l') >>>>>>>> > end >>>>>>>> > end >>>>>>>> > >>>>>>>> > I don't know of any other way to do this yet; but that's not my >>>>>>>> concern yet. >>>>>>>> > >>>>>>>> > What I would like to know is how can I use an awk command within >>>>>>>> the >>>>>>>> > Facter::Util::Resolution.exec('.........') line. >>>>>>>> > >>>>>>>> > I have a need to essentially reproduce the line above but drop >>>>>>>> wc -l and >>>>>>>> > add awk '{ print $2"_"$3"_on_"$1$4 }' >>>>>>>> > >>>>>>>> > I need the awk command to pretty much look like this; the problem >>>>>>>> is awk >>>>>>>> > uses its own single quotes (') and it will break the ruby code. >>>>>>>> > >>>>>>>> > I am not a ruby developer; so if someone could either tell me: >>>>>>>> > >>>>>>>> > It's just not possible; or >>>>>>>> > do it this way >>>>>>>> > >>>>>>>> > >>>>>>>> > That would be greatly appreciated. Thank you, >>>>>>>> > >>>>>>>> > -------------------------- >>>>>>>> > Warron French >>>>>>>> > >>>>>>>> > -- >>>>>>>> > You received this message because you are subscribed to the >>>>>>>> Google Groups >>>>>>>> > "Puppet Users" group. >>>>>>>> > To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an >>>>>>>> > email to puppet-users...@googlegroups.com. >>>>>>>> > To view this discussion on the web visit >>>>>>>> > >>>>>>>> https://groups.google.com/d/msgid/puppet-users/CAJdJdQmZXQAd%2Bo%2Bnp-NHqxGHnXubf%2Bac-dP5FPoy4QYMEVuBuA%40mail.gmail.com >>>>>>>> . >>>>>>>> > For more options, visit https://groups.google.com/d/optout. >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "Puppet Users" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to puppet-users...@googlegroups.com. >>>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/puppet-users/CAJA1CN9aFH4Eza-FoxzrfXDWiGCUHXE%2BGFt2Nu%3DjK2eDzV4upg%40mail.gmail.com >>>>>>>> . >>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Puppet Users" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to puppet-users...@googlegroups.com. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/puppet-users/CAJdJdQnAbguKzz0S2O_NJfp2nzjeev77Ld7PHBEAOBH8_CZPsw%40mail.gmail.com >>>>>>> >>>>>>> <https://groups.google.com/d/msgid/puppet-users/CAJdJdQnAbguKzz0S2O_NJfp2nzjeev77Ld7PHBEAOBH8_CZPsw%40mail.gmail.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 "Puppet Users" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to puppet-users...@googlegroups.com. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/puppet-users/F53C3C7F-916F-4DB1-896F-8FF0F7F54BD6%40gmail.com >>>>>>> >>>>>>> <https://groups.google.com/d/msgid/puppet-users/F53C3C7F-916F-4DB1-896F-8FF0F7F54BD6%40gmail.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 "Puppet Users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to puppet-users...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/puppet-users/73bd7507-03a3-4421-bf51-af2e9f37d62c%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/puppet-users/73bd7507-03a3-4421-bf51-af2e9f37d62c%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 "Puppet Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to puppet-users...@googlegroups.com <javascript:>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/puppet-users/f28aa960-21c9-4d8f-a086-2e72d0893060%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/puppet-users/f28aa960-21c9-4d8f-a086-2e72d0893060%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 "Puppet Users" group. 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