Re: [Puppet Users] Create variable as result of command execution
Thank you!
This is also working:
/usr/sbin/nginx -V 2>&1 | /bin/grep -oP "http-proxy-temp-path=.*?\s" |
/usr/bin/awk -F\'=\' {\'print $2\'}
среда, 19 марта 2014 г., 17:31:45 UTC+4 пользователь jcbollinger написал:
>
>
>
> On Wednesday, March 19, 2014 4:03:26 AM UTC-5, Roman Alekseev wrote:
>>
>> Hi,
>>
>> I created fact but it doesn't work. What did I make wrong?
>>
>>
>>
>>
>>
>>
>>
>> *# nginx_arg.rbFacter.add("nginx_arg") do setcode do
>> Facter::Util::Resolution.exec("/usr/sbin/nginx -V 2> /etc/puppet/nginx.args
>> | /bin/cat /etc/puppet/nginx.args | /usr/bin/awk
>> -F'--http-proxy-temp-path=' {'print $2'} | /usr/bin/awk {'print $1'} |
>> /bin/grep '\/'") endend*
>>
>>
>
> There are a couple of weird things about that, but before that:
>
>- What does "doesn't work" mean, specifically?
>- Where is the file located on the master?
>- Do you have pluginsync enabled on the agents?
>- Is the fact value output by "facter -p" on agent nodes that have
>synced the fact?
>
> With respect to the command itself,
>
>- which output stream from /usr/sbin/nginx are you trying to use?
>(You are using stderr (via a temp file), but you are also piping stdout
> and
>ignoring it.)
>- the unquoted curly braces in the command will be parsed by the
>shell, not passed to awk.
>- Setting awk's field separator to '--http-proxy-temp-path=' will
>probably not do anything sensible if there are other options listed after
>than one in nginx's output.
>- If you need a temp file, you should put it in /tmp or /var/tmp and
>give it an unpredictable name. But you don't need one for what it looks
>like you're trying to do.
>
> Were I writing a command to do what I *think* yours is trying to do, it
> would look something like this:
>
> Facter::Util::Resolution.exec(
> "/usr/sbin/nginx -V 2>&1 1>/dev/null | /bin/sed -n
> 's,.*--http-proxy-temp-path=\(/\S\+\).*,\1,p'"
> )
>
> That pipes the stderr stream of the nginx command into sed, discarding the
> stdout. Sed then filters out everything except any strings of
> non-whitespace beginning with a slash character (/) and directly following
> the string "--http-proxy-temp-path=". The output does not include the
> "--http-proxy-temp-path=". If you need to allow for whitespace either
> before or after the '=' character then the pattern can be adjusted to
> achieve that.
>
>
> John
>
>
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Re: [Puppet Users] Create variable as result of command execution
On Wednesday, March 19, 2014 4:03:26 AM UTC-5, Roman Alekseev wrote:
>
> Hi,
>
> I created fact but it doesn't work. What did I make wrong?
>
>
>
>
>
>
>
> *# nginx_arg.rbFacter.add("nginx_arg") do setcode do
> Facter::Util::Resolution.exec("/usr/sbin/nginx -V 2> /etc/puppet/nginx.args
> | /bin/cat /etc/puppet/nginx.args | /usr/bin/awk
> -F'--http-proxy-temp-path=' {'print $2'} | /usr/bin/awk {'print $1'} |
> /bin/grep '\/'") endend*
>
>
There are a couple of weird things about that, but before that:
- What does "doesn't work" mean, specifically?
- Where is the file located on the master?
- Do you have pluginsync enabled on the agents?
- Is the fact value output by "facter -p" on agent nodes that have
synced the fact?
With respect to the command itself,
- which output stream from /usr/sbin/nginx are you trying to use? (You
are using stderr (via a temp file), but you are also piping stdout and
ignoring it.)
- the unquoted curly braces in the command will be parsed by the shell,
not passed to awk.
- Setting awk's field separator to '--http-proxy-temp-path=' will
probably not do anything sensible if there are other options listed after
than one in nginx's output.
- If you need a temp file, you should put it in /tmp or /var/tmp and
give it an unpredictable name. But you don't need one for what it looks
like you're trying to do.
Were I writing a command to do what I *think* yours is trying to do, it
would look something like this:
Facter::Util::Resolution.exec(
"/usr/sbin/nginx -V 2>&1 1>/dev/null | /bin/sed -n
's,.*--http-proxy-temp-path=\(/\S\+\).*,\1,p'"
)
That pipes the stderr stream of the nginx command into sed, discarding the
stdout. Sed then filters out everything except any strings of
non-whitespace beginning with a slash character (/) and directly following
the string "--http-proxy-temp-path=". The output does not include the
"--http-proxy-temp-path=". If you need to allow for whitespace either
before or after the '=' character then the pattern can be adjusted to
achieve that.
John
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Re: [Puppet Users] Create variable as result of command execution
Hi,
I created fact but it doesn't work. What did I make wrong?
*# nginx_arg.rbFacter.add("nginx_arg") do setcode do
Facter::Util::Resolution.exec("/usr/sbin/nginx -V 2> /etc/puppet/nginx.args
| /bin/cat /etc/puppet/nginx.args | /usr/bin/awk
-F'--http-proxy-temp-path=' {'print $2'} | /usr/bin/awk {'print $1'} |
/bin/grep '\/'") endend*
Thanks.
среда, 19 марта 2014 г., 12:13:16 UTC+4 пользователь Jose Luis Ledesma
написал:
>
> Hi,
>
> I think that the best way is a custom fact.
>
> Regards
> El 19/03/2014 08:27, "Roman Alekseev" >
> escribió:
>
>> Hello,
>>
>> What is the best way in puppet to create a variable as result of command
>> below:
>> *$nginx_dir=`/usr/sbin/nginx -V 2> /etc/puppet/nginx.args | /bin/cat
>> /etc/puppet/nginx.args | /usr/bin/awk -F'--http-proxy-temp-path=' {'print
>> $2'} | /usr/bin/awk {'print $1'} | /bin/grep '\/'`*
>>
>> Any advices will be appreciated.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Puppet Users" group.
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>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
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Re: [Puppet Users] Create variable as result of command execution
Hi,
I think that the best way is a custom fact.
Regards
El 19/03/2014 08:27, "Roman Alekseev" escribió:
> Hello,
>
> What is the best way in puppet to create a variable as result of command
> below:
> *$nginx_dir=`/usr/sbin/nginx -V 2> /etc/puppet/nginx.args | /bin/cat
> /etc/puppet/nginx.args | /usr/bin/awk -F'--http-proxy-temp-path=' {'print
> $2'} | /usr/bin/awk {'print $1'} | /bin/grep '\/'`*
>
> Any advices will be appreciated.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Puppet Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to puppet-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/puppet-users/7211e50a-32db-4c68-953e-164edecc1932%40googlegroups.com
> .
> For more options, visit https://groups.google.com/d/optout.
>
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[Puppet Users] Create variable as result of command execution
Hello,
What is the best way in puppet to create a variable as result of command
below:
*$nginx_dir=`/usr/sbin/nginx -V 2> /etc/puppet/nginx.args | /bin/cat
/etc/puppet/nginx.args | /usr/bin/awk -F'--http-proxy-temp-path=' {'print
$2'} | /usr/bin/awk {'print $1'} | /bin/grep '\/'`*
Any advices will be appreciated.
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