Re: [Puppet Users] Using Facter to find the Java version running on the machine

[Craig White]

On Feb 21, 2013, at 1:27 PM, Camerodity wrote:

> Hello all,
>
> I am currently trying to setup a Custom Fact that will can be used to determine the version of the Java JRE running on a machine, in order to use it in my manifests to ensure the proper JARS are distribured based on environment. I'm trying to use the java -version command and then capture the JRE release (eg "1.6.0_37"). No matter what I have tried, the output is always the full display from the Java -version command. Has anyone done this or something similar before? Any suggestions?
----
don't know about the java command but I suspect some variation of this will do it. (%x[ ] captures the output of command(s) executed within the square brackets)

Facter.add("ruby_version") do
setcode do
ruby_version = "unknown"
rubypath = %x[facter rubysitedir]
ruby_version = %x[ruby -v | cut -f2 -d ' ']
ruby_version
end
end

Craig

[Kyle Sexton]

Camerodity <camer...@gmail.com> writes:

> Hello all,
>
> I am currently trying to setup a Custom Fact that will can be used to determine the version of the
> Java JRE running on a machine, in order to use it in my manifests to ensure the proper JARS are
> distribured based on environment. I'm trying to use the java -version command and then capture the
> JRE release (eg "1.6.0_37"). No matter what I have tried, the output is always the full display
> from the Java -version command. Has anyone done this or something similar before? Any suggestions?
>

Hard to know for sure without seeing any code. Have you checked that
it's going to stdout?

java -version 1> 1.txt
java -version 2> 2.txt

Also, perhaps looking at the package (rpm, deb, etc..) installed would be more
effective?

--
Kyle Sexton

[Dan White]

java -version 2>&1 | head -n 1 | cut -f2 -d'"'

Apparently, the output goes to stderr !

“Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.”
Bill Waterson (Calvin & Hobbes)

---

From: "Craig White" <craig...@ttiltd.com>
To: puppet...@googlegroups.com
Sent: Thursday, February 21, 2013 5:14:14 PM
Subject: Re: [Puppet Users] Using Facter to find the Java version running on the machine

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[Steven Nemetz]

This is the fact that I use
 
Facter.add("java_version") do
    setcode do
        `/usr/bin/java -version 2>&1`.split("\n")[0].split('"')[1]
    end    
end 

Steven

 

---

Date: Thu, 21 Feb 2013 22:50:24 +0000
From: yg...@comcast.net
To: puppet...@googlegroups.com

[Camerodity]

Great! Thank you so much, I used your example and got the desired output. I really appreciate your time.

 

Mike

[Camerodity]

Steven,

 

Thanks!! Your example really helped me and I now have the desired custom fact