[chef] Re: Re: Where is the storage of cooknooks in Chef Server 10?

[Jesse Campbell < >]

well... the mapping between checksum ids and real filenames is in couchdb.

the actual cookbook contents are stored on the filesystem.

on my centos server, there is a folder /var/lib/chef/cookbook_index, and in there are a whole pile of files sorted by checksum id (and stored with the checksum as the name). all the cookbooks are intermingled, so if two cookbooks use the same file, it will only be stored once, and if two cookbooks use different files who's checksums are the same, one of them will get the wrong file.

Fortunately the likelihood of a checksum collision for different files is pretty small. A rough approximation if my math isn't too far off if you have about 2048 files in your cookbooks is 1.8e-71 (# files^2)/(2* # possible hash results), 2048^2 / (2 * 2^256) (chef uses sha-256)

this is the precursor to the more friendly chef bookshelf storage system that came with chef 11.

-jesse

On Mon, Mar 11, 2013 at 1:26 AM, Ranjib Dey < " target="_blank"> > wrote:

yes cookbooks are stored in couch if you are using chef 10.x server. you can check the couchdb conf for their physical location (/etc/couchdb should have the config and /var/couchdb should have the data). By default couchdb is bound to 127.0.0.1 , and can not be accessed from outside the server, you can change that and make it bind to 0.0.0.0 and then hit couchdb directly from your browser and check the data inside its (chef is db name inside couch), but remember to revert back the setting as this will leave the couch insecure.

On Sun, Mar 10, 2013 at 8:38 PM, < " target="_blank"> > wrote:

I am aware that you can check the existing cookbooks in the server using the
# knife cookbook list

However, I want to check the exact location of the cookbooks in the server ,
say using the
# ls command.

But, I think the cookbooks are stored in the database which in my case is
CouchDB. Is there a way to check it directly?