Maybe Im being obtuse, but isnt ALL cfg mgmt inherently declarative?
I know that gets tossed around by the Puppet community as a unique win
for it over others in the space.
NB: My background is cfengine{2,3}.
On Mon, May 24, 2010 at 11:38 PM, Eric Eisenhart <freih...@gmail.com> wrote:
>
> On May 24, 2010, at 6:38 PM, Christophe Kalt wrote:
>> On 2010-05-22, Joe McDonagh wrote:
>> On 05/22/2010 11:45 AM, Yves Dorfsman wrote:
>> [...]
>> This is why I chose puppet. Puppet's DSL is made of awesome.
>>
>> Ah yes, talk about something that makes no sense to me. Why don't
>> these tool just build upon an existing language??
>> cfengine, I can probably understand, it's old enough, but the recent
>> ones?
>> Why should I have to deal with yet another language?
>
> Puppet's DSL is declarative and designed for that problem space. Using
> a declarative language is a big win here; tell the computer what you
> want the system state to be and let it figure out how to get there.
> Any other declarative language I know would be painful. When I was
> originally looking at tools (a few years ago), Puppet's DSL looked
> much better than any tools that used XML.
>
> Or from the person who made that decision:
> http://projects.puppetlabs.com/projects/puppet/wiki/Frequently_Asked_Questions#Why+does+Puppet+have+its+own+language
> ?
> http://permalink.gmane.org/gmane.comp.sysutils.puppet.devel/210
>
> If you'd rather use a system that's built upon an existing language,
> there's Chef, which uses Ruby as its configuration language.
> http://wiki.opscode.com/display/chef/Recipes
>
> Though, I must say, the basic Chef stuff looks a lot like puppet to
> me, either way the library is probably more effort to learn than the
> syntax.
>
> Chef:
> file "/tmp/create_me" do
> mode 0644
> action :create
> notifies :reload, resources(:service => "apache")
> end
>
> Puppet:
> file { "/tmp/create_me":
> mode => 0644,
> ensure => present,
> notify => Service["apache"]
> }
>
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