Rails - Nov 2013 - Ruby code on Chef as a "ruby_block" not working

Hi Ruby hackers,

I have very limited knowledge of the Ruby programming language, however, 
I need to implement on Chef (check-solo) something similar to "augeas"
(which works with Puppet, but here I need a solution for Chef).

I got the example code below but it''s not working and I am now for a
few
days trying to figure out what is wrong.

Basically I need to be able to select specific strings in a text file 
and modify these values. I could use sed but perhaps I can do it in a 
more elegant way using the ruby_block from Chef.

Please let me know what can be possibly wrong with the code below. Why 
is my /etc/hosts not being updated with new values?

Always when I re-run chef-solo, I get the following error:

*NoMethodError**
**-------------**
**undefined method `chef'' for Chef::Resource::RubyBlock*


Thanks for your help.

Follows my *default.rb* file:

Code:

ruby_block "edit etc hosts" do
   block do
     rc = Chef::Util::FileEdit.new("/etc/hosts")
     rc.search_file_replace_line(
       /^127\.0\.0\.1 localhost$/,
       "127.0.0.1 #{new_fqdn} #{new_hostname} localhost"
     )
     rc.write_file
   end
end

-- 
Rodrigo de Campos
Unix System Administrator

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You should really ask about this in a chef support area, as it is something very
specific to chef.

As it is, you cannot define local functions in chef recipes, they have to be
defined in libraries and called from such.

Stackoverflow is really your best bet for help on chef things, or the #chef
channel on irc.freenode.net

On Nov 7, 2013, at 8:29 AM, Rodrigo de Campos
<rdcp-oP3IKE9fX2EhFhg+JK9F0w@public.gmane.org> wrote:
> Hi Ruby hackers,
> 
> I have very limited knowledge of the Ruby programming language, however, I
need to implement on Chef (check-solo) something similar to "augeas"
(which works with Puppet, but here I need a solution for Chef).
> 
> I got the example code below but it''s not working and I am now for
a few days trying to figure out what is wrong.
> 
> Basically I need to be able to select specific strings in a text file and
modify these values. I could use sed but perhaps I can do it in a more elegant
way using the ruby_block from Chef.
> 
> Please let me know what can be possibly wrong with the code below. Why is
my /etc/hosts not being updated with new values?
> 
> Always when I re-run chef-solo, I get the following error:
> 
> NoMethodError
> -------------
> undefined method `chef'' for Chef::Resource::RubyBlock
> 
> 
> Thanks for your help.
> 
> Follows my default.rb file:
> 
> Code:
> ruby_block "edit etc hosts" do
>   block do
>     rc = Chef::Util::FileEdit.new("/etc/hosts")
>     rc.search_file_replace_line(
>       /^127\.0\.0\.1 localhost$/,
>       "127.0.0.1 #{new_fqdn} #{new_hostname} localhost"
>     )
>     rc.write_file
>   end
> end
> 
> -- 
> Rodrigo de Campos
> Unix System Administrator
> 
> 
> -- 
> You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
> To unsubscribe from this group and stop receiving emails from it, send an
email to
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> To post to this group, send email to
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> To view this discussion on the web visit
https://groups.google.com/d/msgid/rubyonrails-talk/527BA3B9.4070906%40netzmarkt.de.
> For more options, visit https://groups.google.com/groups/opt_out.
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