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Ace

2011-Jan-03 21:51 UTC

[Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

I want to manage cronjobs as a " file " in solaris through puppet and
not using the puppet cron resource.

I will be managing the file /var/spool/cron/crontabs/root.

I want the cron file to be same across all servers except some servers
will have additional cron entries.

How can I append to the file /var/spool/cron/crontabs/root , something
like appendifnosuchline in cfengine?

Can  "appendifnosuchline" be implemented through puppet even through
the file /var/spool/cron/crontabs/root is being managed through
puppet?

Thanks,
Ace

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Alan Barrett

2011-Jan-04 08:08 UTC

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Re: [Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Mon, 03 Jan 2011, Ace wrote:> I will be managing the file /var/spool/cron/crontabs/root.
> 
> I want the cron file to be same across all servers except some servers
> will have additional cron entries.
Since you want to avoid the puppet "cron" type, I''d suggest
using the
"concat" module from
<https://github.com/ripienaar/puppet-concat>.
> How can I append to the file /var/spool/cron/crontabs/root , something
> like appendifnosuchline in cfengine?
You could probably use augeas for that, if you try hard
enough, but I recommend concat.  Some of the comments at
<http://www.devco.net/archives/2010/02/19/building_files_from_fragments_with_puppet.php>
discuss tradeoffs between concat and augeas.

--apb (Alan Barrett)

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Felix Frank

2011-Jan-04 09:02 UTC

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Re: [Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On 01/03/2011 10:51 PM, Ace wrote:> I want to manage cronjobs as a " file " in solaris through puppet
and
> not using the puppet cron resource.
> 
> I will be managing the file /var/spool/cron/crontabs/root.
> 
> I want the cron file to be same across all servers except some servers
> will have additional cron entries.
> 
> How can I append to the file /var/spool/cron/crontabs/root , something
> like appendifnosuchline in cfengine?
> 
> Can  "appendifnosuchline" be implemented through puppet even
through
> the file /var/spool/cron/crontabs/root is being managed through
> puppet?
I think not. Usually, this is approached in either of two ways:

1. You create a template and there are facts or variables that control
where your exceptions are included.
2. You create different versions of your crontab. Your manifests select
sources using variables and if/else- or case-constructs, or using class
inheritance (which is often more elegant).

There may be more approaches still.

HTH,
Felix

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Rene Cunningham

2011-Jan-04 10:56 UTC

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Re: [Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Tue, Jan 4, 2011 at 8:02 PM, Felix Frank
<felix.frank@alumni.tu-berlin.de> wrote:
> On 01/03/2011 10:51 PM, Ace wrote:
> > I want to manage cronjobs as a " file " in solaris through
puppet and
> > not using the puppet cron resource.
> >
> > I will be managing the file /var/spool/cron/crontabs/root.
> >
> > I want the cron file to be same across all servers except some servers
> > will have additional cron entries.
> >
> > How can I append to the file /var/spool/cron/crontabs/root , something
> > like appendifnosuchline in cfengine?
> >
> > Can  "appendifnosuchline" be implemented through puppet even
through
> > the file /var/spool/cron/crontabs/root is being managed through
> > puppet?
>
> I think not. Usually, this is approached in either of two ways:
>
> 1. You create a template and there are facts or variables that control
> where your exceptions are included.
> 2. You create different versions of your crontab. Your manifests select
> sources using variables and if/else- or case-constructs, or using class
> inheritance (which is often more elegant).
>
> There may be more approaches still.
>
Ive recently started using the method described below which is working well
so far. It may not be able to work with the
''appendifnosuchline'' approach.

http://linuxman.wikispaces.com/Creating+a+cron+job+with+puppet

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Felix Frank

2011-Jan-04 11:12 UTC

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Re: [Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

> Ive recently started using the method described below which is working
> well so far. It may not be able to work with the
''appendifnosuchline''
> approach.
> 
> http://linuxman.wikispaces.com/Creating+a+cron+job+with+puppet 
Hmm, interesting. Have you considered using the ubiquitous file concat
mechanism? (I forget the download link, sorry).

I''ve got to add: Your assumption that "you can''t really
have
puppet-managed and non-puppet-managed jobs in the same crontab" is just
not true. You are usually *not* supposed to managed crontabs as files
(except the cron provider is broken on your platform, as in Ace''s
case).

Cheers,
Felix

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Nigel Kersten

2011-Jan-04 16:04 UTC

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Re: [Puppet Users] Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Mon, Jan 3, 2011 at 1:51 PM, Ace <tejas.zzz@gmail.com> wrote:
> I want to manage cronjobs as a " file " in solaris through puppet
and
> not using the puppet cron resource.
>
> I will be managing the file /var/spool/cron/crontabs/root.
>
> I want the cron file to be same across all servers except some servers
> will have additional cron entries.
>
> How can I append to the file /var/spool/cron/crontabs/root , something
> like appendifnosuchline in cfengine?
>
> Can  "appendifnosuchline" be implemented through puppet even
through
> the file /var/spool/cron/crontabs/root is being managed through
> puppet?
>
There are a bunch of recipes around where people construct an Exec with an
onlyif/unless conditional to achieve this.

Here''s something I just whipped up that looks to work ok.

define appendifnosuchline($file="", $line="") {
  exec { "appendline_${file}_${line}":
    path    => "/bin:/usr/bin",
    command => "echo ${text} >> ${line}",
    unless  => "grep -qx ${text} ${line}",
  }
}

appendifnosuchline { "ensure_foobar_in_filetest":
  file => "/tmp/filetest",
  line => "foobar",
}

You could do something trickier with composite namevars, but this works.

You don''t want to do this and manage the *contents* of the file with
Puppet.
You''ll get changes on every run then.

You can however manage the attributes of the file, and could require the
given File resource when using the defined type so that those settings are
always applied first.


>
> Thanks,
> Ace
>
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>
>
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Ace

2011-Jan-05 16:27 UTC

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[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Yep I have tried the code below and I got changes everytime I ran it.
Could you elaborate on the below lines that you mentioned. Thanks.
 I will also try the concat method.

You can however manage the attributes of the file, and could require
the
given File resource when using the defined type so that those settings
are
always applied first.







On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Mon, Jan 3, 2011 at 1:51 PM, Ace <tejas....@gmail.com> wrote:
> > I want to manage cronjobs as a " file " in solaris through
puppet and
> > not using the puppet cron resource.
>
> > I will be managing the file /var/spool/cron/crontabs/root.
>
> > I want the cron file to be same across all servers except some servers
> > will have additional cron entries.
>
> > How can I append to the file /var/spool/cron/crontabs/root , something
> > like appendifnosuchline in cfengine?
>
> > Can  "appendifnosuchline" be implemented through puppet even
through
> > the file /var/spool/cron/crontabs/root is being managed through
> > puppet?
>
> There are a bunch of recipes around where people construct an Exec with an
> onlyif/unless conditional to achieve this.
>
> Here''s something I just whipped up that looks to work ok.
>
> define appendifnosuchline($file="", $line="") {
>   exec { "appendline_${file}_${line}":
>     path    => "/bin:/usr/bin",
>     command => "echo ${text} >> ${line}",
>     unless  => "grep -qx ${text} ${line}",
>   }
>
> }
>
> appendifnosuchline { "ensure_foobar_in_filetest":
>   file => "/tmp/filetest",
>   line => "foobar",
>
> }
>
> You could do something trickier with composite namevars, but this works.
>
> You don''t want to do this and manage the *contents* of the file
with Puppet.
> You''ll get changes on every run then.
>
> You can however manage the attributes of the file, and could require the
> given File resource when using the defined type so that those settings are
> always applied first.
>
>
>
> > Thanks,
> > Ace
>
> > --
> > You received this message because you are subscribed to the Google
Groups
> > "Puppet Users" group.
> > To post to this group, send email to puppet-users@googlegroups.com.
> > To unsubscribe from this group, send email to
> >
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> > For more options, visit this group at
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>
>
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Ace

2011-Jan-05 16:45 UTC

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[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Is there something simpler than the concat module ? Is there a way to
control which classes/modules execute first in puppet to make the code
mentioned by Nigel work?



On Jan 4, 3:08 am, Alan Barrett <a...@cequrux.com>
wrote:> On Mon, 03 Jan 2011, Ace wrote:
> > I will be managing the file /var/spool/cron/crontabs/root.
>
> > I want the cron file to be same across all servers except some servers
> > will have additional cron entries.
>
> Since you want to avoid the puppet "cron" type, I''d
suggest using the
> "concat" module from
<https://github.com/ripienaar/puppet-concat>.
>
> > How can I append to the file /var/spool/cron/crontabs/root , something
> > like appendifnosuchline in cfengine?
>
> You could probably use augeas for that, if you try hard
> enough, but I recommend concat.  Some of the comments at
>
<http://www.devco.net/archives/2010/02/19/building_files_from_fragment...>
> discuss tradeoffs between concat and augeas.
>
> --apb (Alan Barrett)
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Ace

2011-Jan-05 16:45 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Is there something simpler than the concat module ? Is there a way to
control which classes/modules execute first in puppet to make the code
mentioned by Nigel work?



On Jan 4, 3:08 am, Alan Barrett <a...@cequrux.com>
wrote:> On Mon, 03 Jan 2011, Ace wrote:
> > I will be managing the file /var/spool/cron/crontabs/root.
>
> > I want the cron file to be same across all servers except some servers
> > will have additional cron entries.
>
> Since you want to avoid the puppet "cron" type, I''d
suggest using the
> "concat" module from
<https://github.com/ripienaar/puppet-concat>.
>
> > How can I append to the file /var/spool/cron/crontabs/root , something
> > like appendifnosuchline in cfengine?
>
> You could probably use augeas for that, if you try hard
> enough, but I recommend concat.  Some of the comments at
>
<http://www.devco.net/archives/2010/02/19/building_files_from_fragment...>
> discuss tradeoffs between concat and augeas.
>
> --apb (Alan Barrett)
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Nigel Kersten

2011-Jan-05 18:22 UTC

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Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Wed, Jan 5, 2011 at 8:27 AM, Ace <tejas.zzz@gmail.com> wrote:
> Yep I have tried the code below and I got changes everytime I ran it.
> Could you elaborate on the below lines that you mentioned. Thanks.
>  I will also try the concat method.
>
That would be because I gave you an entirely broken example :)

define appendifnosuchline($file="", $line="") {
  exec { "appendline_${file}_${line}":
    path    => "/bin:/usr/bin",
    command => "/bin/echo ${line} >> ${file}",
    unless  => "grep -qx ${line} ${file}",
  }
}

appendifnosuchline { "ensure_foobar_in_filetest":
  file => "/tmp/filetest",
  line => "foobar",
}

That looks to work.


>
> You can however manage the attributes of the file, and could require
> the
> given File resource when using the defined type so that those settings
> are
> always applied first.
>
>
>
>
>
>
>
> On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com> wrote:
> > On Mon, Jan 3, 2011 at 1:51 PM, Ace <tejas....@gmail.com> wrote:
> > > I want to manage cronjobs as a " file " in solaris
through puppet and
> > > not using the puppet cron resource.
> >
> > > I will be managing the file /var/spool/cron/crontabs/root.
> >
> > > I want the cron file to be same across all servers except some
servers
> > > will have additional cron entries.
> >
> > > How can I append to the file /var/spool/cron/crontabs/root ,
something
> > > like appendifnosuchline in cfengine?
> >
> > > Can  "appendifnosuchline" be implemented through puppet
even through
> > > the file /var/spool/cron/crontabs/root is being managed through
> > > puppet?
> >
> > There are a bunch of recipes around where people construct an Exec
with
> an
> > onlyif/unless conditional to achieve this.
> >
> > Here''s something I just whipped up that looks to work ok.
> >
> > define appendifnosuchline($file="", $line="") {
> >   exec { "appendline_${file}_${line}":
> >     path    => "/bin:/usr/bin",
> >     command => "echo ${text} >> ${line}",
> >     unless  => "grep -qx ${text} ${line}",
> >   }
> >
> > }
> >
> > appendifnosuchline { "ensure_foobar_in_filetest":
> >   file => "/tmp/filetest",
> >   line => "foobar",
> >
> > }
> >
> > You could do something trickier with composite namevars, but this
works.
> >
> > You don''t want to do this and manage the *contents* of the
file with
> Puppet.
> > You''ll get changes on every run then.
> >
> > You can however manage the attributes of the file, and could require
the
> > given File resource when using the defined type so that those settings
> are
> > always applied first.
> >
> >
> >
> > > Thanks,
> > > Ace
> >
> > > --
> > > You received this message because you are subscribed to the
Google
> Groups
> > > "Puppet Users" group.
> > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
>
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
> >
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/puppet-users?hl=en.
> >
> >
>
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Ace

2011-Jan-05 20:16 UTC

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[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Yes this definitely works although it replaces the file and appends
the line to it every time it runs. Is there a cleaner way of doing
it?

tmp/filetest is a file managed by puppet who''s contents are two lines
"testme" and "hmm what does this do". The append function
appends line
"works" everytime it runs.

[root@ /]$ cat /tmp/filetest
testme
hmm what does this do
works
[root@ /]$ puppetd --test
info: Caching catalog for dc116.usatlas.bnl.gov
info: Applying configuration version ''1294258209''
--- /tmp/filetest       Wed Jan  5 15:12:27 2011
+++ /tmp/puppet-file20110105-13134-1p9lv09-0    Wed Jan  5 15:13:47
2011
@@ -1,3 +1,2 @@
 testme
 hmm what does this do
-works
info: FileBucket got a duplicate file /tmp/filetest ({md5}
a1e1337e26fd34816281fbb48b4db945)
info: /Stage[main]/Sys_files_dc116/File[/tmp/filetest]: Filebucketed /
tmp/filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
notice: /Stage[main]/Sys_files_dc116/File[/tmp/filetest]/content:
content changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
fcf03823146b78fb73e8df3c3494ef6d''
notice: /Stage[main]/Append/
Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
tmp/filetest_works]/returns: executed successfully
notice: Finished catalog run in 6.28 seconds
[root@ /]$ cat /tmp/filetest
testme
hmm what does this do
works


On Jan 5, 1:22 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Wed, Jan 5, 2011 at 8:27 AM, Ace <tejas....@gmail.com> wrote:
> > Yep I have tried the code below and I got changes everytime I ran it.
> > Could you elaborate on the below lines that you mentioned. Thanks.
> >  I will also try the concat method.
>
> That would be because I gave you an entirely broken example :)
>
> define appendifnosuchline($file="", $line="") {
>   exec { "appendline_${file}_${line}":
>     path    => "/bin:/usr/bin",
>     command => "/bin/echo ${line} >> ${file}",
>     unless  => "grep -qx ${line} ${file}",
>   }
>
> }
>
> appendifnosuchline { "ensure_foobar_in_filetest":
>   file => "/tmp/filetest",
>   line => "foobar",
>
> }
>
> That looks to work.
>
>
>
> > You can however manage the attributes of the file, and could require
> > the
> > given File resource when using the defined type so that those settings
> > are
> > always applied first.
>
> > On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com> wrote:
> > > On Mon, Jan 3, 2011 at 1:51 PM, Ace <tejas....@gmail.com>
wrote:
> > > > I want to manage cronjobs as a " file " in solaris
through puppet and
> > > > not using the puppet cron resource.
>
> > > > I will be managing the file /var/spool/cron/crontabs/root.
>
> > > > I want the cron file to be same across all servers except
some servers
> > > > will have additional cron entries.
>
> > > > How can I append to the file /var/spool/cron/crontabs/root ,
something
> > > > like appendifnosuchline in cfengine?
>
> > > > Can  "appendifnosuchline" be implemented through
puppet even through
> > > > the file /var/spool/cron/crontabs/root is being managed
through
> > > > puppet?
>
> > > There are a bunch of recipes around where people construct an
Exec with
> > an
> > > onlyif/unless conditional to achieve this.
>
> > > Here''s something I just whipped up that looks to work
ok.
>
> > > define appendifnosuchline($file="", $line="")
{
> > >   exec { "appendline_${file}_${line}":
> > >     path    => "/bin:/usr/bin",
> > >     command => "echo ${text} >> ${line}",
> > >     unless  => "grep -qx ${text} ${line}",
> > >   }
>
> > > }
>
> > > appendifnosuchline { "ensure_foobar_in_filetest":
> > >   file => "/tmp/filetest",
> > >   line => "foobar",
>
> > > }
>
> > > You could do something trickier with composite namevars, but this
works.
>
> > > You don''t want to do this and manage the *contents* of
the file with
> > Puppet.
> > > You''ll get changes on every run then.
>
> > > You can however manage the attributes of the file, and could
require the
> > > given File resource when using the defined type so that those
settings
> > are
> > > always applied first.
>
> > > > Thanks,
> > > > Ace
>
> > > > --
> > > > You received this message because you are subscribed to the
Google
> > Groups
> > > > "Puppet Users" group.
> > > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > > To unsubscribe from this group, send email to
> > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>
> > > > .
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/puppet-users?hl=en.
>
> > --
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>
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Ace

2011-Jan-05 20:20 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Yes this definitely works although it replaces the file and appends
the line to it every time it runs. Is there a cleaner way of doing
it?

tmp/filetest is a file managed by puppet who''s contents are two lines
"testme" and "hmm what does this do". The append function
appends line
"works" everytime it runs.

[root@ /]$ cat /tmp/filetest
testme
hmm what does this do
works
[root@ /]$ puppetd --test
info: Caching catalog for xxx
info: Applying configuration version ''1294258209''
--- /tmp/filetest       Wed Jan  5 15:12:09 2011
+++ /tmp/puppet-file20110105-13009-1lgt6q-0     Wed Jan  5 15:12:26
2011
@@ -1,3 +1,2 @@
 testme
 hmm what does this do
-works
info: FileBucket adding /tmp/filetest as {md5}
a1e1337e26fd34816281fbb48b4db945
info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
fcf03823146b78fb73e8df3c3494ef6d''
notice: /Stage[main]/Append/
Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
tmp/filetest_works]/returns: executed successfully
notice: Finished catalog run in 6.86 seconds
[root@ /]$ cat /tmp/filetest
testme
hmm what does this do
works
[root@ /]$ puppetd --test
info: Caching catalog for xxx
info: Applying configuration version ''1294258209''
--- /tmp/filetest       Wed Jan  5 15:12:27 2011
+++ /tmp/puppet-file20110105-13134-1p9lv09-0    Wed Jan  5 15:13:47
2011
@@ -1,3 +1,2 @@
 testme
 hmm what does this do
-works
info: FileBucket got a duplicate file /tmp/filetest ({md5}
a1e1337e26fd34816281fbb48b4db945)
info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
fcf03823146b78fb73e8df3c3494ef6d''
notice: /Stage[main]/Append/
Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
tmp/filetest_works]/returns: executed successfully
notice: Finished catalog run in 6.28 seconds
[root@/]$ cat /tmp/filetest
testme
hmm what does this do
works

On Jan 5, 1:22 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Wed, Jan 5, 2011 at 8:27 AM, Ace <tejas....@gmail.com> wrote:
> > Yep I have tried the code below and I got changes everytime I ran it.
> > Could you elaborate on the below lines that you mentioned. Thanks.
> >  I will also try the concat method.
>
> That would be because I gave you an entirely broken example :)
>
> define appendifnosuchline($file="", $line="") {
>   exec { "appendline_${file}_${line}":
>     path    => "/bin:/usr/bin",
>     command => "/bin/echo ${line} >> ${file}",
>     unless  => "grep -qx ${line} ${file}",
>   }
>
> }
>
> appendifnosuchline { "ensure_foobar_in_filetest":
>   file => "/tmp/filetest",
>   line => "foobar",
>
> }
>
> That looks to work.
>
>
>
> > You can however manage the attributes of the file, and could require
> > the
> > given File resource when using the defined type so that those settings
> > are
> > always applied first.
>
> > On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com> wrote:
> > > On Mon, Jan 3, 2011 at 1:51 PM, Ace <tejas....@gmail.com>
wrote:
> > > > I want to manage cronjobs as a " file " in solaris
through puppet and
> > > > not using the puppet cron resource.
>
> > > > I will be managing the file /var/spool/cron/crontabs/root.
>
> > > > I want the cron file to be same across all servers except
some servers
> > > > will have additional cron entries.
>
> > > > How can I append to the file /var/spool/cron/crontabs/root ,
something
> > > > like appendifnosuchline in cfengine?
>
> > > > Can  "appendifnosuchline" be implemented through
puppet even through
> > > > the file /var/spool/cron/crontabs/root is being managed
through
> > > > puppet?
>
> > > There are a bunch of recipes around where people construct an
Exec with
> > an
> > > onlyif/unless conditional to achieve this.
>
> > > Here''s something I just whipped up that looks to work
ok.
>
> > > define appendifnosuchline($file="", $line="")
{
> > >   exec { "appendline_${file}_${line}":
> > >     path    => "/bin:/usr/bin",
> > >     command => "echo ${text} >> ${line}",
> > >     unless  => "grep -qx ${text} ${line}",
> > >   }
>
> > > }
>
> > > appendifnosuchline { "ensure_foobar_in_filetest":
> > >   file => "/tmp/filetest",
> > >   line => "foobar",
>
> > > }
>
> > > You could do something trickier with composite namevars, but this
works.
>
> > > You don''t want to do this and manage the *contents* of
the file with
> > Puppet.
> > > You''ll get changes on every run then.
>
> > > You can however manage the attributes of the file, and could
require the
> > > given File resource when using the defined type so that those
settings
> > are
> > > always applied first.
>
> > > > Thanks,
> > > > Ace
>
> > > > --
> > > > You received this message because you are subscribed to the
Google
> > Groups
> > > > "Puppet Users" group.
> > > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > > To unsubscribe from this group, send email to
> > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>
> > > > .
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/puppet-users?hl=en.
>
> > --
> > You received this message because you are subscribed to the Google
Groups
> > "Puppet Users" group.
> > To post to this group, send email to puppet-users@googlegroups.com.
> > To unsubscribe from this group, send email to
> >
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> > .
> > For more options, visit this group at
> >http://groups.google.com/group/puppet-users?hl=en.
>
>
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Alan Barrett

2011-Jan-05 20:40 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Wed, 05 Jan 2011, Nigel Kersten wrote:> define appendifnosuchline($file="", $line="") {
>   exec { "appendline_${file}_${line}":
>     path    => "/bin:/usr/bin",
>     command => "/bin/echo ${line} >> ${file}",
>     unless  => "grep -qx ${line} ${file}",
>   }
> }
> 
> appendifnosuchline { "ensure_foobar_in_filetest":
>   file => "/tmp/filetest",
>   line => "foobar",
> }
> 
> That looks to work.
... unless $line begins with "-" (which will confuse grep or some
versions of echo), or contains space or other shell special characters
(which will confuse the shell), or contains backslash (which is special
to some versions of /bin/echo), or contains regexp secial characters
(which will confuse grep).

Here''s my untested attempt:

    define appendifnosuchline($file, $line) {
	$escaped_line = shellquote($line)
	exec { "appendline_${title}":
	    path    => "/bin:/usr/bin",
	    command => "printf ''%s\\n'' ${escaped_line}
>> ${file}",
	    unless  => "grep -qFx -e ${escaped_line} ${file}",
	}
    }

This is untested, and still doesn''t handle spaces or shell special
characters in the file name, but it attempts to deal with the other
issues:

* Escape shell special characters in $line;
* Use printf instead of echo to avoid portability problems with
  different versions of echo interpreting "-" or "\"
differently.
* Use grep -F option to make it search for a fixed string
  instead of a regular expression;
* Use grep -e option to avoid problems if $line begins with "-";

I also made the $file and $line parameters compulsory, and derived the
title of the exec from the title of the appendifnosuchline instead of
from the file name and line contents (which might be long or ugly).

--apb (Alan Barrett)

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Ace

2011-Jan-05 20:44 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

As you can see the append function is running last and hence all this
is working. What controls the sequence in which the modules/classes/
function execute in puppet? Is this random or during the catalog
compilation, puppet understands that it needs to run specific modules
earlier and other modules later.

On Jan 5, 3:20 pm, Ace <tejas....@gmail.com>
wrote:> Yes this definitely works although it replaces the file and appends
> the line to it every time it runs. Is there a cleaner way of doing
> it?
>
> tmp/filetest is a file managed by puppet who''s contents are two
lines
> "testme" and "hmm what does this do". The append
function appends line
> "works" everytime it runs.
>
> [root@ /]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
> [root@ /]$ puppetd --test
> info: Caching catalog for xxx
> info: Applying configuration version ''1294258209''
> --- /tmp/filetest       Wed Jan  5 15:12:09 2011
> +++ /tmp/puppet-file20110105-13009-1lgt6q-0     Wed Jan  5 15:12:26
> 2011
> @@ -1,3 +1,2 @@
>  testme
>  hmm what does this do
> -works
> info: FileBucket adding /tmp/filetest as {md5}
> a1e1337e26fd34816281fbb48b4db945
> info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
> filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
> notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
> changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
> fcf03823146b78fb73e8df3c3494ef6d''
> notice: /Stage[main]/Append/
> Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
> tmp/filetest_works]/returns: executed successfully
> notice: Finished catalog run in 6.86 seconds
> [root@ /]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
> [root@ /]$ puppetd --test
> info: Caching catalog for xxx
> info: Applying configuration version ''1294258209''
> --- /tmp/filetest       Wed Jan  5 15:12:27 2011
> +++ /tmp/puppet-file20110105-13134-1p9lv09-0    Wed Jan  5 15:13:47
> 2011
> @@ -1,3 +1,2 @@
>  testme
>  hmm what does this do
> -works
> info: FileBucket got a duplicate file /tmp/filetest ({md5}
> a1e1337e26fd34816281fbb48b4db945)
> info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
> filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
> notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
> changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
> fcf03823146b78fb73e8df3c3494ef6d''
> notice: /Stage[main]/Append/
> Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
> tmp/filetest_works]/returns: executed successfully
> notice: Finished catalog run in 6.28 seconds
> [root@/]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
>
> On Jan 5, 1:22 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
>
> > On Wed, Jan 5, 2011 at 8:27 AM, Ace <tejas....@gmail.com> wrote:
> > > Yep I have tried the code below and I got changes everytime I ran
it.
> > > Could you elaborate on the below lines that you mentioned.
Thanks.
> > >  I will also try the concat method.
>
> > That would be because I gave you an entirely broken example :)
>
> > define appendifnosuchline($file="", $line="") {
> >   exec { "appendline_${file}_${line}":
> >     path    => "/bin:/usr/bin",
> >     command => "/bin/echo ${line} >> ${file}",
> >     unless  => "grep -qx ${line} ${file}",
> >   }
>
> > }
>
> > appendifnosuchline { "ensure_foobar_in_filetest":
> >   file => "/tmp/filetest",
> >   line => "foobar",
>
> > }
>
> > That looks to work.
>
> > > You can however manage the attributes of the file, and could
require
> > > the
> > > given File resource when using the defined type so that those
settings
> > > are
> > > always applied first.
>
> > > On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com>
wrote:
> > > > On Mon, Jan 3, 2011 at 1:51 PM, Ace
<tejas....@gmail.com> wrote:
> > > > > I want to manage cronjobs as a " file " in
solaris through puppet and
> > > > > not using the puppet cron resource.
>
> > > > > I will be managing the file
/var/spool/cron/crontabs/root.
>
> > > > > I want the cron file to be same across all servers
except some servers
> > > > > will have additional cron entries.
>
> > > > > How can I append to the file
/var/spool/cron/crontabs/root , something
> > > > > like appendifnosuchline in cfengine?
>
> > > > > Can  "appendifnosuchline" be implemented
through puppet even through
> > > > > the file /var/spool/cron/crontabs/root is being managed
through
> > > > > puppet?
>
> > > > There are a bunch of recipes around where people construct
an Exec with
> > > an
> > > > onlyif/unless conditional to achieve this.
>
> > > > Here''s something I just whipped up that looks to
work ok.
>
> > > > define appendifnosuchline($file="",
$line="") {
> > > >   exec { "appendline_${file}_${line}":
> > > >     path    => "/bin:/usr/bin",
> > > >     command => "echo ${text} >> ${line}",
> > > >     unless  => "grep -qx ${text} ${line}",
> > > >   }
>
> > > > }
>
> > > > appendifnosuchline { "ensure_foobar_in_filetest":
> > > >   file => "/tmp/filetest",
> > > >   line => "foobar",
>
> > > > }
>
> > > > You could do something trickier with composite namevars, but
this works.
>
> > > > You don''t want to do this and manage the *contents*
of the file with
> > > Puppet.
> > > > You''ll get changes on every run then.
>
> > > > You can however manage the attributes of the file, and could
require the
> > > > given File resource when using the defined type so that
those settings
> > > are
> > > > always applied first.
>
> > > > > Thanks,
> > > > > Ace
>
> > > > > --
> > > > > You received this message because you are subscribed to
the Google
> > > Groups
> > > > > "Puppet Users" group.
> > > > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > > > To unsubscribe from this group, send email to
> > > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> > >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>
> > > > > .
> > > > > For more options, visit this group at
> > > > >http://groups.google.com/group/puppet-users?hl=en.
>
> > > --
> > > You received this message because you are subscribed to the
Google Groups
> > > "Puppet Users" group.
> > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/puppet-users?hl=en.
>
>
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Ace

2011-Jan-05 20:44 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

As you can see the append function is running last and hence all this
is working. What controls the sequence in which the modules/classes/
function execute in puppet? Is this random or during the catalog
compilation, puppet understands that it needs to run specific modules
earlier and other modules later.

On Jan 5, 3:20 pm, Ace <tejas....@gmail.com>
wrote:> Yes this definitely works although it replaces the file and appends
> the line to it every time it runs. Is there a cleaner way of doing
> it?
>
> tmp/filetest is a file managed by puppet who''s contents are two
lines
> "testme" and "hmm what does this do". The append
function appends line
> "works" everytime it runs.
>
> [root@ /]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
> [root@ /]$ puppetd --test
> info: Caching catalog for xxx
> info: Applying configuration version ''1294258209''
> --- /tmp/filetest       Wed Jan  5 15:12:09 2011
> +++ /tmp/puppet-file20110105-13009-1lgt6q-0     Wed Jan  5 15:12:26
> 2011
> @@ -1,3 +1,2 @@
>  testme
>  hmm what does this do
> -works
> info: FileBucket adding /tmp/filetest as {md5}
> a1e1337e26fd34816281fbb48b4db945
> info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
> filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
> notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
> changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
> fcf03823146b78fb73e8df3c3494ef6d''
> notice: /Stage[main]/Append/
> Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
> tmp/filetest_works]/returns: executed successfully
> notice: Finished catalog run in 6.86 seconds
> [root@ /]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
> [root@ /]$ puppetd --test
> info: Caching catalog for xxx
> info: Applying configuration version ''1294258209''
> --- /tmp/filetest       Wed Jan  5 15:12:27 2011
> +++ /tmp/puppet-file20110105-13134-1p9lv09-0    Wed Jan  5 15:13:47
> 2011
> @@ -1,3 +1,2 @@
>  testme
>  hmm what does this do
> -works
> info: FileBucket got a duplicate file /tmp/filetest ({md5}
> a1e1337e26fd34816281fbb48b4db945)
> info: /Stage[main]/Sys_files/File[/tmp/filetest]: Filebucketed /tmp/
> filetest to puppet with sum a1e1337e26fd34816281fbb48b4db945
> notice: /Stage[main]/Sys_files/File[/tmp/filetest]/content: content
> changed ''{md5}a1e1337e26fd34816281fbb48b4db945'' to
''{md5}
> fcf03823146b78fb73e8df3c3494ef6d''
> notice: /Stage[main]/Append/
> Append::Appendifnosuchline[ensure_foobar_in_filetest]/Exec[appendline_/
> tmp/filetest_works]/returns: executed successfully
> notice: Finished catalog run in 6.28 seconds
> [root@/]$ cat /tmp/filetest
> testme
> hmm what does this do
> works
>
> On Jan 5, 1:22 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
>
> > On Wed, Jan 5, 2011 at 8:27 AM, Ace <tejas....@gmail.com> wrote:
> > > Yep I have tried the code below and I got changes everytime I ran
it.
> > > Could you elaborate on the below lines that you mentioned.
Thanks.
> > >  I will also try the concat method.
>
> > That would be because I gave you an entirely broken example :)
>
> > define appendifnosuchline($file="", $line="") {
> >   exec { "appendline_${file}_${line}":
> >     path    => "/bin:/usr/bin",
> >     command => "/bin/echo ${line} >> ${file}",
> >     unless  => "grep -qx ${line} ${file}",
> >   }
>
> > }
>
> > appendifnosuchline { "ensure_foobar_in_filetest":
> >   file => "/tmp/filetest",
> >   line => "foobar",
>
> > }
>
> > That looks to work.
>
> > > You can however manage the attributes of the file, and could
require
> > > the
> > > given File resource when using the defined type so that those
settings
> > > are
> > > always applied first.
>
> > > On Jan 4, 11:04 am, Nigel Kersten <ni...@puppetlabs.com>
wrote:
> > > > On Mon, Jan 3, 2011 at 1:51 PM, Ace
<tejas....@gmail.com> wrote:
> > > > > I want to manage cronjobs as a " file " in
solaris through puppet and
> > > > > not using the puppet cron resource.
>
> > > > > I will be managing the file
/var/spool/cron/crontabs/root.
>
> > > > > I want the cron file to be same across all servers
except some servers
> > > > > will have additional cron entries.
>
> > > > > How can I append to the file
/var/spool/cron/crontabs/root , something
> > > > > like appendifnosuchline in cfengine?
>
> > > > > Can  "appendifnosuchline" be implemented
through puppet even through
> > > > > the file /var/spool/cron/crontabs/root is being managed
through
> > > > > puppet?
>
> > > > There are a bunch of recipes around where people construct
an Exec with
> > > an
> > > > onlyif/unless conditional to achieve this.
>
> > > > Here''s something I just whipped up that looks to
work ok.
>
> > > > define appendifnosuchline($file="",
$line="") {
> > > >   exec { "appendline_${file}_${line}":
> > > >     path    => "/bin:/usr/bin",
> > > >     command => "echo ${text} >> ${line}",
> > > >     unless  => "grep -qx ${text} ${line}",
> > > >   }
>
> > > > }
>
> > > > appendifnosuchline { "ensure_foobar_in_filetest":
> > > >   file => "/tmp/filetest",
> > > >   line => "foobar",
>
> > > > }
>
> > > > You could do something trickier with composite namevars, but
this works.
>
> > > > You don''t want to do this and manage the *contents*
of the file with
> > > Puppet.
> > > > You''ll get changes on every run then.
>
> > > > You can however manage the attributes of the file, and could
require the
> > > > given File resource when using the defined type so that
those settings
> > > are
> > > > always applied first.
>
> > > > > Thanks,
> > > > > Ace
>
> > > > > --
> > > > > You received this message because you are subscribed to
the Google
> > > Groups
> > > > > "Puppet Users" group.
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puppet-users@googlegroups.com.
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>
> > > > > .
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>
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Ace

2011-Jan-05 20:45 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

As you can see the append function is running last and hence all this
is working. What controls the sequence in which the modules/classes/
function execute in puppet? Is this random or during the catalog
compilation, puppet understands that it needs to run specific modules
earlier and other modules later.

On Jan 5, 3:40 pm, Alan Barrett <a...@cequrux.com>
wrote:> On Wed, 05 Jan 2011, Nigel Kersten wrote:
> > define appendifnosuchline($file="", $line="") {
> >   exec { "appendline_${file}_${line}":
> >     path    => "/bin:/usr/bin",
> >     command => "/bin/echo ${line} >> ${file}",
> >     unless  => "grep -qx ${line} ${file}",
> >   }
> > }
>
> > appendifnosuchline { "ensure_foobar_in_filetest":
> >   file => "/tmp/filetest",
> >   line => "foobar",
> > }
>
> > That looks to work.
>
> ... unless $line begins with "-" (which will confuse grep or some
> versions of echo), or contains space or other shell special characters
> (which will confuse the shell), or contains backslash (which is special
> to some versions of /bin/echo), or contains regexp secial characters
> (which will confuse grep).
>
> Here''s my untested attempt:
>
>     define appendifnosuchline($file, $line) {
>         $escaped_line = shellquote($line)
>         exec { "appendline_${title}":
>             path    => "/bin:/usr/bin",
>             command => "printf ''%s\\n''
${escaped_line} >> ${file}",
>             unless  => "grep -qFx -e ${escaped_line} ${file}",
>         }
>     }
>
> This is untested, and still doesn''t handle spaces or shell special
> characters in the file name, but it attempts to deal with the other
> issues:
>
> * Escape shell special characters in $line;
> * Use printf instead of echo to avoid portability problems with
>   different versions of echo interpreting "-" or "\"
differently.
> * Use grep -F option to make it search for a fixed string
>   instead of a regular expression;
> * Use grep -e option to avoid problems if $line begins with "-";
>
> I also made the $file and $line parameters compulsory, and derived the
> title of the exec from the title of the appendifnosuchline instead of
> from the file name and line contents (which might be long or ugly).
>
> --apb (Alan Barrett)
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Alan Barrett

2011-Jan-05 20:48 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Wed, 05 Jan 2011, Ace wrote:> Yes this definitely works although it replaces the file and appends
> tmp/filetest is a file managed by puppet who''s contents are two
lines
> "testme" and "hmm what does this do". The append
function appends line
> "works" everytime it runs.
This is a problem that you were warned about.  You have two conflicting
rules about the same file; one rule says "it must contain exactly two
lines, no more and no less -- the two lines must be ''testme''
and ''hmm
what does this do''"; the other rule says "it must contain a
line that
says ''works''".  You can''t simultaneously satisfy
both rules, but puppet
tries as hard as it can, removing the "works" line when it focuses on
the "file" rule, and reinstating the "works" line when it
focuses on the
"append" rule.

--apb (Alan Barrett)

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Nigel Kersten

2011-Jan-05 21:12 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett <apb@cequrux.com> wrote:
> On Wed, 05 Jan 2011, Nigel Kersten wrote:
> > define appendifnosuchline($file="", $line="") {
> >   exec { "appendline_${file}_${line}":
> >     path    => "/bin:/usr/bin",
> >     command => "/bin/echo ${line} >> ${file}",
> >     unless  => "grep -qx ${line} ${file}",
> >   }
> > }
> >
> > appendifnosuchline { "ensure_foobar_in_filetest":
> >   file => "/tmp/filetest",
> >   line => "foobar",
> > }
> >
> > That looks to work.
>
> ... unless $line begins with "-" (which will confuse grep or some
> versions of echo), or contains space or other shell special characters
> (which will confuse the shell), or contains backslash (which is special
> to some versions of /bin/echo), or contains regexp secial characters
> (which will confuse grep).
>
All excellent points.

>
> Here''s my untested attempt:
>
>    define appendifnosuchline($file, $line) {
>        $escaped_line = shellquote($line)
>        exec { "appendline_${title}":
>            path    => "/bin:/usr/bin",
>            command => "printf ''%s\\n''
${escaped_line} >> ${file}",
>            unless  => "grep -qFx -e ${escaped_line} ${file}",
>        }
>    }
>
> This is untested, and still doesn''t handle spaces or shell special
> characters in the file name, but it attempts to deal with the other
> issues:
>
> * Escape shell special characters in $line;
> * Use printf instead of echo to avoid portability problems with
>  different versions of echo interpreting "-" or "\"
differently.
> * Use grep -F option to make it search for a fixed string
>  instead of a regular expression;
> * Use grep -e option to avoid problems if $line begins with "-";
>
> I also made the $file and $line parameters compulsory, and derived the
> title of the exec from the title of the appendifnosuchline instead of
> from the file name and line contents (which might be long or ugly).
>
That''s a good improvement.

>
> --apb (Alan Barrett)
>
> --
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Ace

2011-Jan-06 19:49 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

As you can see the append function is running last and hence all this
is working. What controls the sequence in which the modules/classes/
function execute in puppet? Is this random or during the catalog
compilation, puppet understands that it needs to run specific modules
earlier and other modules later.



On Jan 5, 4:12 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett <a...@cequrux.com>
wrote:
> > On Wed, 05 Jan 2011, Nigel Kersten wrote:
> > > define appendifnosuchline($file="", $line="")
{
> > >   exec { "appendline_${file}_${line}":
> > >     path    => "/bin:/usr/bin",
> > >     command => "/bin/echo ${line} >> ${file}",
> > >     unless  => "grep -qx ${line} ${file}",
> > >   }
> > > }
>
> > > appendifnosuchline { "ensure_foobar_in_filetest":
> > >   file => "/tmp/filetest",
> > >   line => "foobar",
> > > }
>
> > > That looks to work.
>
> > ... unless $line begins with "-" (which will confuse grep or
some
> > versions of echo), or contains space or other shell special characters
> > (which will confuse the shell), or contains backslash (which is
special
> > to some versions of /bin/echo), or contains regexp secial characters
> > (which will confuse grep).
>
> All excellent points.
>
>
>
>
>
> > Here''s my untested attempt:
>
> >    define appendifnosuchline($file, $line) {
> >        $escaped_line = shellquote($line)
> >        exec { "appendline_${title}":
> >            path    => "/bin:/usr/bin",
> >            command => "printf ''%s\\n''
${escaped_line} >> ${file}",
> >            unless  => "grep -qFx -e ${escaped_line}
${file}",
> >        }
> >    }
>
> > This is untested, and still doesn''t handle spaces or shell
special
> > characters in the file name, but it attempts to deal with the other
> > issues:
>
> > * Escape shell special characters in $line;
> > * Use printf instead of echo to avoid portability problems with
> >  different versions of echo interpreting "-" or
"\" differently.
> > * Use grep -F option to make it search for a fixed string
> >  instead of a regular expression;
> > * Use grep -e option to avoid problems if $line begins with
"-";
>
> > I also made the $file and $line parameters compulsory, and derived the
> > title of the exec from the title of the appendifnosuchline instead of
> > from the file name and line contents (which might be long or ugly).
>
> That''s a good improvement.
>
>
>
> > --apb (Alan Barrett)
>
> > --
> > You received this message because you are subscribed to the Google
Groups
> > "Puppet Users" group.
> > To post to this group, send email to puppet-users@googlegroups.com.
> > To unsubscribe from this group, send email to
> >
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> > .
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>
>
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Nigel Kersten

2011-Jan-06 20:15 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Thu, Jan 6, 2011 at 11:49 AM, Ace <tejas.zzz@gmail.com> wrote:
> As you can see the append function is running last and hence all this
> is working. What controls the sequence in which the modules/classes/
> function execute in puppet? Is this random or during the catalog
> compilation, puppet understands that it needs to run specific modules
> earlier and other modules later.
>
It''s random unless you define relationships between the classes.

I highly suggest you keep the principle of encapsulation, resources should
only require resources within the same class, and intra-class relationships
should be defined as class<->class, never to individual resources in a
foreign class.


>
>
>
> On Jan 5, 4:12 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
> > On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett <a...@cequrux.com>
wrote:
> > > On Wed, 05 Jan 2011, Nigel Kersten wrote:
> > > > define appendifnosuchline($file="",
$line="") {
> > > >   exec { "appendline_${file}_${line}":
> > > >     path    => "/bin:/usr/bin",
> > > >     command => "/bin/echo ${line} >>
${file}",
> > > >     unless  => "grep -qx ${line} ${file}",
> > > >   }
> > > > }
> >
> > > > appendifnosuchline { "ensure_foobar_in_filetest":
> > > >   file => "/tmp/filetest",
> > > >   line => "foobar",
> > > > }
> >
> > > > That looks to work.
> >
> > > ... unless $line begins with "-" (which will confuse
grep or some
> > > versions of echo), or contains space or other shell special
characters
> > > (which will confuse the shell), or contains backslash (which is
special
> > > to some versions of /bin/echo), or contains regexp secial
characters
> > > (which will confuse grep).
> >
> > All excellent points.
> >
> >
> >
> >
> >
> > > Here''s my untested attempt:
> >
> > >    define appendifnosuchline($file, $line) {
> > >        $escaped_line = shellquote($line)
> > >        exec { "appendline_${title}":
> > >            path    => "/bin:/usr/bin",
> > >            command => "printf ''%s\\n''
${escaped_line} >> ${file}",
> > >            unless  => "grep -qFx -e ${escaped_line}
${file}",
> > >        }
> > >    }
> >
> > > This is untested, and still doesn''t handle spaces or
shell special
> > > characters in the file name, but it attempts to deal with the
other
> > > issues:
> >
> > > * Escape shell special characters in $line;
> > > * Use printf instead of echo to avoid portability problems with
> > >  different versions of echo interpreting "-" or
"\" differently.
> > > * Use grep -F option to make it search for a fixed string
> > >  instead of a regular expression;
> > > * Use grep -e option to avoid problems if $line begins with
"-";
> >
> > > I also made the $file and $line parameters compulsory, and
derived the
> > > title of the exec from the title of the appendifnosuchline
instead of
> > > from the file name and line contents (which might be long or
ugly).
> >
> > That''s a good improvement.
> >
> >
> >
> > > --apb (Alan Barrett)
> >
> > > --
> > > You received this message because you are subscribed to the
Google
> Groups
> > > "Puppet Users" group.
> > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > >
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>
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> >
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/puppet-users?hl=en.
> >
> >
>
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Ace

2011-Jan-07 14:27 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Can you please state an example explaining how relating classes would
execute one class before another?

On Jan 6, 3:15 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Thu, Jan 6, 2011 at 11:49 AM, Ace <tejas....@gmail.com> wrote:
> > As you can see the append function is running last and hence all this
> > is working. What controls the sequence in which the modules/classes/
> > function execute in puppet? Is this random or during the catalog
> > compilation, puppet understands that it needs to run specific modules
> > earlier and other modules later.
>
> It''s random unless you define relationships between the classes.
>
> I highly suggest you keep the principle of encapsulation, resources should
> only require resources within the same class, and intra-class relationships
> should be defined as class<->class, never to individual resources in
a
> foreign class.
>
>
>
> > On Jan 5, 4:12 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
> > > On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett
<a...@cequrux.com> wrote:
> > > > On Wed, 05 Jan 2011, Nigel Kersten wrote:
> > > > > define appendifnosuchline($file="",
$line="") {
> > > > >   exec { "appendline_${file}_${line}":
> > > > >     path    => "/bin:/usr/bin",
> > > > >     command => "/bin/echo ${line} >>
${file}",
> > > > >     unless  => "grep -qx ${line} ${file}",
> > > > >   }
> > > > > }
>
> > > > > appendifnosuchline {
"ensure_foobar_in_filetest":
> > > > >   file => "/tmp/filetest",
> > > > >   line => "foobar",
> > > > > }
>
> > > > > That looks to work.
>
> > > > ... unless $line begins with "-" (which will
confuse grep or some
> > > > versions of echo), or contains space or other shell special
characters
> > > > (which will confuse the shell), or contains backslash (which
is special
> > > > to some versions of /bin/echo), or contains regexp secial
characters
> > > > (which will confuse grep).
>
> > > All excellent points.
>
> > > > Here''s my untested attempt:
>
> > > >    define appendifnosuchline($file, $line) {
> > > >        $escaped_line = shellquote($line)
> > > >        exec { "appendline_${title}":
> > > >            path    => "/bin:/usr/bin",
> > > >            command => "printf
''%s\\n'' ${escaped_line} >> ${file}",
> > > >            unless  => "grep -qFx -e ${escaped_line}
${file}",
> > > >        }
> > > >    }
>
> > > > This is untested, and still doesn''t handle spaces
or shell special
> > > > characters in the file name, but it attempts to deal with
the other
> > > > issues:
>
> > > > * Escape shell special characters in $line;
> > > > * Use printf instead of echo to avoid portability problems
with
> > > >  different versions of echo interpreting "-" or
"\" differently.
> > > > * Use grep -F option to make it search for a fixed string
> > > >  instead of a regular expression;
> > > > * Use grep -e option to avoid problems if $line begins with
"-";
>
> > > > I also made the $file and $line parameters compulsory, and
derived the
> > > > title of the exec from the title of the appendifnosuchline
instead of
> > > > from the file name and line contents (which might be long or
ugly).
>
> > > That''s a good improvement.
>
> > > > --apb (Alan Barrett)
>
> > > > --
> > > > You received this message because you are subscribed to the
Google
> > Groups
> > > > "Puppet Users" group.
> > > > To post to this group, send email to
puppet-users@googlegroups.com.
> > > > To unsubscribe from this group, send email to
> > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>
> > > > .
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/puppet-users?hl=en.
>
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>
>
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Felix Frank

2011-Jan-07 14:36 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On 01/07/2011 03:27 PM, Ace wrote:> Can you please state an example explaining how relating classes would
> execute one class before another?
Ace,

in this simple case, you could probably get away with

define appendifnosuchline($file="", $line="") {
   exec { "appendline_${file}_${line}":
     path    => "/bin:/usr/bin",
     command => "/bin/echo ${line} >> ${file}",
     unless  => "grep -qx ${line} ${file}",
     require => File[$file],
   }
}

Note the require parameter to the exec resource. This will prevent you
from using this define on non-puppetmanaged files though. For more
flexibility:

define appendifnosuchline($file="", $line="",
$disable_autorequire =>
false) {
   if !$disable_autorequire {
     Exec { require => File[$file] }
   }
   exec { "appendline_${file}_${line}":
     path    => "/bin:/usr/bin",
     command => "/bin/echo ${line} >> ${file}",
     unless  => "grep -qx ${line} ${file}",
   }
}

Then specify "disable_autorequire => true" where applicable.

The third route is not to touch the define at all and add the require
each time you declare it as a resource. But that''s redundant, and we
don''t like that.

There, much safer now ;)

Cheers,
Felix

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Nigel Kersten

2011-Jan-07 15:00 UTC

head link

Re: [Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

On Fri, Jan 7, 2011 at 6:27 AM, Ace <tejas.zzz@gmail.com>
wrote:> Can you please state an example explaining how relating classes would
> execute one class before another?
class foo {
  require "bar"
}


>
> On Jan 6, 3:15 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
>> On Thu, Jan 6, 2011 at 11:49 AM, Ace <tejas....@gmail.com> wrote:
>> > As you can see the append function is running last and hence all
this
>> > is working. What controls the sequence in which the
modules/classes/
>> > function execute in puppet? Is this random or during the catalog
>> > compilation, puppet understands that it needs to run specific
modules
>> > earlier and other modules later.
>>
>> It''s random unless you define relationships between the
classes.
>>
>> I highly suggest you keep the principle of encapsulation, resources
should
>> only require resources within the same class, and intra-class
relationships
>> should be defined as class<->class, never to individual resources
in a
>> foreign class.
>>
>>
>>
>> > On Jan 5, 4:12 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:
>> > > On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett
<a...@cequrux.com> wrote:
>> > > > On Wed, 05 Jan 2011, Nigel Kersten wrote:
>> > > > > define appendifnosuchline($file="",
$line="") {
>> > > > >   exec { "appendline_${file}_${line}":
>> > > > >     path    => "/bin:/usr/bin",
>> > > > >     command => "/bin/echo ${line} >>
${file}",
>> > > > >     unless  => "grep -qx ${line}
${file}",
>> > > > >   }
>> > > > > }
>>
>> > > > > appendifnosuchline {
"ensure_foobar_in_filetest":
>> > > > >   file => "/tmp/filetest",
>> > > > >   line => "foobar",
>> > > > > }
>>
>> > > > > That looks to work.
>>
>> > > > ... unless $line begins with "-" (which will
confuse grep or some
>> > > > versions of echo), or contains space or other shell
special characters
>> > > > (which will confuse the shell), or contains backslash
(which is special
>> > > > to some versions of /bin/echo), or contains regexp
secial characters
>> > > > (which will confuse grep).
>>
>> > > All excellent points.
>>
>> > > > Here''s my untested attempt:
>>
>> > > >    define appendifnosuchline($file, $line) {
>> > > >        $escaped_line = shellquote($line)
>> > > >        exec { "appendline_${title}":
>> > > >            path    => "/bin:/usr/bin",
>> > > >            command => "printf
''%s\\n'' ${escaped_line} >> ${file}",
>> > > >            unless  => "grep -qFx -e
${escaped_line} ${file}",
>> > > >        }
>> > > >    }
>>
>> > > > This is untested, and still doesn''t handle
spaces or shell special
>> > > > characters in the file name, but it attempts to deal
with the other
>> > > > issues:
>>
>> > > > * Escape shell special characters in $line;
>> > > > * Use printf instead of echo to avoid portability
problems with
>> > > >  different versions of echo interpreting "-"
or "\" differently.
>> > > > * Use grep -F option to make it search for a fixed
string
>> > > >  instead of a regular expression;
>> > > > * Use grep -e option to avoid problems if $line begins
with "-";
>>
>> > > > I also made the $file and $line parameters compulsory,
and derived the
>> > > > title of the exec from the title of the
appendifnosuchline instead of
>> > > > from the file name and line contents (which might be
long or ugly).
>>
>> > > That''s a good improvement.
>>
>> > > > --apb (Alan Barrett)
>>
>> > > > --
>> > > > You received this message because you are subscribed to
the Google
>> > Groups
>> > > > "Puppet Users" group.
>> > > > To post to this group, send email to
puppet-users@googlegroups.com.
>> > > > To unsubscribe from this group, send email to
>> > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
>> >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>>
>> > > > .
>> > > > For more options, visit this group at
>> > > >http://groups.google.com/group/puppet-users?hl=en.
>>
>> > --
>> > You received this message because you are subscribed to the Google
Groups
>> > "Puppet Users" group.
>> > To post to this group, send email to
puppet-users@googlegroups.com.
>> > To unsubscribe from this group, send email to
>> >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
>> > .
>> > For more options, visit this group at
>> >http://groups.google.com/group/puppet-users?hl=en.
>>
>>
>
> --
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Ace

2011-Jan-07 22:27 UTC

head link

[Puppet Users] Re: Managing cronjobs as a file in solaris with appendifnosuchline for specific servers

Thanks all, finally got it working now.

On Jan 7, 10:00 am, Nigel Kersten <ni...@puppetlabs.com>
wrote:> On Fri, Jan 7, 2011 at 6:27 AM, Ace <tejas....@gmail.com> wrote:
> > Can you please state an example explaining how relating classes would
> > execute one class before another?
>
> class foo {
>   require "bar"
>
> }
>
> > On Jan 6, 3:15 pm, Nigel Kersten <ni...@puppetlabs.com> wrote:
> >> On Thu, Jan 6, 2011 at 11:49 AM, Ace <tejas....@gmail.com>
wrote:
> >> > As you can see the append function is running last and hence
all this
> >> > is working. What controls the sequence in which the
modules/classes/
> >> > function execute in puppet? Is this random or during the
catalog
> >> > compilation, puppet understands that it needs to run specific
modules
> >> > earlier and other modules later.
>
> >> It''s random unless you define relationships between the
classes.
>
> >> I highly suggest you keep the principle of encapsulation,
resources should
> >> only require resources within the same class, and intra-class
relationships
> >> should be defined as class<->class, never to individual
resources in a
> >> foreign class.
>
> >> > On Jan 5, 4:12 pm, Nigel Kersten <ni...@puppetlabs.com>
wrote:
> >> > > On Wed, Jan 5, 2011 at 12:40 PM, Alan Barrett
<a...@cequrux.com> wrote:
> >> > > > On Wed, 05 Jan 2011, Nigel Kersten wrote:
> >> > > > > define appendifnosuchline($file="",
$line="") {
> >> > > > >   exec {
"appendline_${file}_${line}":
> >> > > > >     path    => "/bin:/usr/bin",
> >> > > > >     command => "/bin/echo ${line}
>> ${file}",
> >> > > > >     unless  => "grep -qx ${line}
${file}",
> >> > > > >   }
> >> > > > > }
>
> >> > > > > appendifnosuchline {
"ensure_foobar_in_filetest":
> >> > > > >   file => "/tmp/filetest",
> >> > > > >   line => "foobar",
> >> > > > > }
>
> >> > > > > That looks to work.
>
> >> > > > ... unless $line begins with "-" (which
will confuse grep or some
> >> > > > versions of echo), or contains space or other shell
special characters
> >> > > > (which will confuse the shell), or contains
backslash (which is special
> >> > > > to some versions of /bin/echo), or contains regexp
secial characters
> >> > > > (which will confuse grep).
>
> >> > > All excellent points.
>
> >> > > > Here''s my untested attempt:
>
> >> > > >    define appendifnosuchline($file, $line) {
> >> > > >        $escaped_line = shellquote($line)
> >> > > >        exec { "appendline_${title}":
> >> > > >            path    => "/bin:/usr/bin",
> >> > > >            command => "printf
''%s\\n'' ${escaped_line} >> ${file}",
> >> > > >            unless  => "grep -qFx -e
${escaped_line} ${file}",
> >> > > >        }
> >> > > >    }
>
> >> > > > This is untested, and still doesn''t handle
spaces or shell special
> >> > > > characters in the file name, but it attempts to
deal with the other
> >> > > > issues:
>
> >> > > > * Escape shell special characters in $line;
> >> > > > * Use printf instead of echo to avoid portability
problems with
> >> > > >  different versions of echo interpreting
"-" or "\" differently.
> >> > > > * Use grep -F option to make it search for a fixed
string
> >> > > >  instead of a regular expression;
> >> > > > * Use grep -e option to avoid problems if $line
begins with "-";
>
> >> > > > I also made the $file and $line parameters
compulsory, and derived the
> >> > > > title of the exec from the title of the
appendifnosuchline instead of
> >> > > > from the file name and line contents (which might
be long or ugly).
>
> >> > > That''s a good improvement.
>
> >> > > > --apb (Alan Barrett)
>
> >> > > > --
> >> > > > You received this message because you are
subscribed to the Google
> >> > Groups
> >> > > > "Puppet Users" group.
> >> > > > To post to this group, send email to
puppet-users@googlegroups.com.
> >> > > > To unsubscribe from this group, send email to
> >> > > >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> >> >
<puppet-users%2Bunsubscribe@googlegroups.com<puppet-users%252Bunsubscribe@googlegroups.com>
>
> >> > > > .
> >> > > > For more options, visit this group at
> >> > > >http://groups.google.com/group/puppet-users?hl=en.
>
> >> > --
> >> > You received this message because you are subscribed to the
Google Groups
> >> > "Puppet Users" group.
> >> > To post to this group, send email to
puppet-users@googlegroups.com.
> >> > To unsubscribe from this group, send email to
> >> >
puppet-users+unsubscribe@googlegroups.com<puppet-users%2Bunsubscribe@googlegroups.com>
> >> > .
> >> > For more options, visit this group at
> >> >http://groups.google.com/group/puppet-users?hl=en.
>
> > --
> > You received this message because you are subscribed to the Google
Groups "Puppet Users" group.
> > To post to this group, send email to puppet-users@googlegroups.com.
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> > For more options, visit this group
athttp://groups.google.com/group/puppet-users?hl=en.
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