[chef] Re: Problem with chef recipe run order

[Avleen Vig < >]

(sorry for the top post - short and probably more appropriate)

I think I found the cause here:
  http://lists.opscode.com/sympa/arc/chef/2010-02/msg00088.html
The idempotent nature of not_if is causing the problem to appear.

When I looked at the debug output and saw the not_if being applied in
the syslog-ng::prod-web recipe, I assumed the ::default recipe was not
being run until later.
I'm not sure if this is the case or not yet (it shouldn't be, but..).
The not_if statement was being carried forward which resulted in this.

:-)

On Tue, Feb 22, 2011 at 3:48 PM, Avleen Vig 
<
 >
 wrote:
> This is bizarre - though it may be my lack of understanding of chef :-)
> Anyone know what might cause this behaviour?
>
>
> We have a Base role, which looks like this:
>    "run_list": [
>    ....
>      "recipe[syslog-ng]",
>    ....
>    ]
>
> And a more specific role, OurSite which looks like:
>    "run_list": [
>      "role[Base]",
>      ....
>      "recipe[syslog-ng::prod-web]"
>    ]
>
>
> The runlist for the node looks like:
>    "run_list": [ "role[OurSite]" ]
>
>
> Now, I was expecting that the default "recipe[syslog-ng]" would be
> getting run quite early on.
> It has a "not_if" statement on a cookbook_file, which causes it to
> skip because we later want to use the syslog-ng::prod-web in this
> specific role.
>
> *BIZARRE THING*:
> The syslog-ng isn't run until the syslog-ng::prod-web recipe is supposed to 
> run.
> I've verified this by moving syslog-ng::prod-web up and down in the
> run_list and watching the debug output in chef-client.
> And when the not_if kicks in, in the default recipe, the more specific
> syslog-ng::prod-web isn't even run.
>
> Help? I'm *guessing* this is happening because both recipes reference
> the same cookbook_file, but that doesn't explain why the run for the
> syslog-ng::default is delayed until much later, and why both recipes
> aren't run.
>
> I've included the pertinent bits of the recipes below.
>
>
> syslog-ng::default:
> cookbook_file "/etc/syslog-ng/syslog-ng.conf" do
>  not_if "grep 'SPECIAL CONFIG' /etc/syslog-ng/syslog-ng.conf"
>  source "genericv2.conf"
>  owner "root"
>  group "root"
>  mode 00644
>  notifies :restart, resources(:service => "syslog-ng")
> end
>
> syslog-ng::prod-web
> cookbook_file "/etc/syslog-ng/syslog-ng.conf" do
>  backup false
>  source "prodweb-syslog-ng.conf"
>  owner "root"
>  group "root"
>  mode 00644
>  notifies :restart, resources(:service => "syslog-ng")
> end
>