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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