[chef] Re: Re: Re: Re: Re: cookbok file-- copy only if new

[Manoj < >]

Thanks everyone ,

I am still confused on how to achieve it what I have us a very normal everyday scenario in almost every company I think

1. Do a build using Jenkins and copy it to chef server

2. Run chef client on a set of nodes , all these nodes have multiple recipes in their runlist

3.only run list that should be run is whose file is changed and the new file should be copied on that agent

Please help me do a write up for this

What i understand from remote_file is that it will not be able to automatically copy file from a location like chef server . I would have to copy the file on some NSF mount and make it available on all nodes which is too tedious and unnecessary 

I have used puppet in past and puppet supports it as a secular functionality , I am sure I am missing some piece here 

Please  help

Sent from my iPhone

On Sep 12, 2013, at 1:47 PM, Jordan Dea-Mattson < "> > wrote:

Excellent point Benjamin! And one that I missed making and only thought about after my initial post (and hadn't gotten around to posting a follow-up).

I think we need to consider a refactor that combines `cookbook_file`, 'file' and `remote_file` into a single resource. We can maintain the three aliases for background compatibility.

Jordan

On Thu, Sep 12, 2013 at 1:32 PM, Benjamin Bytheway < " target="_blank"> > wrote:

Also, remote_file has been upgraded to allow conditional GETs.  So if the files are being hosted on something that supports if-modified-since, then you can just use a standard action :create and it will only update the file if the remote file has been updated.

They you wouldn't necessarily have to modify the checksum in the cookbook each time you update the file.

use_last_modified

Indicates that If-Modified-Since headers are enabled. Set to false to disable If-Modified-Since headers. To use this setting, use_conditional_get must also be set to true. Default value: true.

http://docs.opscode.com/resource_remote_file.html

On Thu, Sep 12, 2013 at 2:23 PM, Jordan Dea-Mattson < " target="_blank"> > wrote:

Hi Manoj -

If I am understanding what you are trying to do, I don't believe that using :create_if_missing will work for you (which is consistent with what you suspect).

My understanding is that you want to do the following:

+ Create a .war file that has the same name for every version of the file.

+ Only copy the file when there is a new version

++ But that new version will have the same name

Is that correct?

If so, I believe that using `remote_file` is your best option. It will allow you to specify a checksum and will only copy the file if the checksum matches what you specify.

Alternatively, you could use cookbook_file, but use a conditional that requires they checksum you calculate is different from what is deployed.

On Thu, Sep 12, 2013 at 1:00 PM, Alan Ivey < " target="_blank"> > wrote:

The :create_if_missing action will only put the file in place if it doesn't already exist.

The .war file can be in the cookbook/files/default/file_name.war. Then, use the action:

cookbook_file "/destination/path/to/file_name.war" do

  action :create_if_missing"

end

See http://docs.opscode.com/resource_cookbook_file.html#actions

--

Alan Ivey

Senior Systems Administrator

EchoDitto

email:  " style="color:rgb(17,85,204)" target="_blank">

phone: 202-285-9455 ext 115

aim: echodittoalan

On Thu, Sep 12, 2013 at 2:29 PM, Manoj Thakkar < " target="_blank"> > wrote:

Hi,

This is what i am trying to do, i build my war file and copy it in the chef cookbook files/default folder and then run chef-client on my deployment node assuming it will copy the new file.

My recipe says cookbook file "file_name" ...... , I ma not sure what should i write it in the action statement

As the war file name will always be the same so create or create if missing does not make sense,

Please help.