[chef] Re: Re: Re: What is the difference between the following following 2 gem installation methods?


Chronological Thread 
  • From: Joshua Timberman < >
  • To: " " < >
  • Cc: " " < >
  • Subject: [chef] Re: Re: Re: What is the difference between the following following 2 gem installation methods?
  • Date: Sun, 11 Mar 2012 23:11:49 -0600

The provider is idempotent and will not attempt to install the gem if it is installed. 

On Mar 8, 2012, at 7:44, Sachin Sagar Rai < "> > wrote:

Thanks Guys! for clarifying.

Is there any way to make the gem installation conditional? Like `only_if` ? So that the chef-client doesn't install those gems in each run?

-------------------------------------------
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~ Sachin Sagar Rai
Ruby on Rails Developer
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On Thursday, March 8, 2012 at 8:23 PM, Bryan McLellan wrote:

On Thu, Mar 8, 2012 at 4:43 AM, Sachin Sagar Rai < "> > wrote:
What is the difference between the following following 2 gem installation
methods?

    gem_package "mysql" do
      action :install
    end

This is used to install a gem to your system, such as when you're
installing a Ruby application to run as a service.

    r = gem_package "right_aws" do
      version node['aws']['right_aws_version']
      action :nothing
    end

    r.run_action(:install)

    require 'rubygems'
    Gem.clear_paths

This is used to install a gem immediately so you can use the gem in a
Chef recipe. In Chef 0.10.10+ this will be replaced by:

chef_gem "right_aws" do
version node['aws']['right_aws_version']
end


Bryan




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