Chef 10 vs chef 11 docs

Chef Infra (archive)
1

hello,

i realize chef 11 is still under development. is there any doc available yet
that summarizes the differences between chef 10 and chef 11 with respect to
architecture, component software requirements, etc? all i know at this point
(without reading chef-dev) is that the backend data store is moving to
MySQL/postgres.

i’d like to read up on chef 11 as i make decisions on handling my current chef
10 infrastructure. i’d like to be prepared for what’s coming, and make
informed decisions.

all i’ve found so far is
http://wiki.opscode.com/display/chef/Chef+11+Server+Preview

any other docs? or is development on chef 11 just not far enough along yet?

thanks,
kallen

2

On Monday, September 17, 2012 at 12:51 PM, kallen@groknaut.net wrote:

hello,

i realize chef 11 is still under development. is there any doc available yet
that summarizes the differences between chef 10 and chef 11 with respect to
architecture, component software requirements, etc? all i know at this point
(without reading chef-dev) is that the backend data store is moving to
MySQL/postgres.

i'd like to read up on chef 11 as i make decisions on handling my current chef
10 infrastructure. i'd like to be prepared for what's coming, and make
informed decisions.

all i've found so far is
http://wiki.opscode.com/display/chef/Chef+11+Server+Preview

any other docs? or is development on chef 11 just not far enough along yet?

thanks,
kallen

No docs yet, but essentially we're replacing chef-server-api with erchef, and CouchDB with MySQL/PostgreSQL. The other components (solr, chef-expander, rabbitmq) will remain. The webui is still written in Ruby, but has been ported from merb to Rails 3.

--
Daniel DeLeo

3

On Mon, Sep 17, 2012 at 3:51 PM, kallen@groknaut.net wrote:

i'd like to read up on chef 11 as i make decisions on handling my current chef
10 infrastructure. i'd like to be prepared for what's coming, and make
informed decisions.

all i've found so far is
http://wiki.opscode.com/display/chef/Chef+11+Server+Preview

any other docs? or is development on chef 11 just not far enough along yet?

Chef 11 is planned to ship in a couple of months, and is pretty far along.

The Chef 11 API Server is written in erlang. Check out the initial
blog post for the "erchef" project here:

The big feature here is scalability, as a lot of this work was driven
by our internal work scaling Opscode Hosted Chef.

The best way to get familiar with it now is to test it in a sandbox.
More documentation will come along with the release.

Bryan

4

Exactly, what's the reason behind moving from Ruby API (I think it's in
Ruby?) to Erlang API?
Is Chef itself rebuilt as well?

On Mon, Sep 17, 2012 at 4:00 PM, Bryan McLellan btm@loftninjas.org wrote:

On Mon, Sep 17, 2012 at 3:51 PM, kallen@groknaut.net wrote:

i'd like to read up on chef 11 as i make decisions on handling my
current chef
10 infrastructure. i'd like to be prepared for what's coming, and make
informed decisions.

all i've found so far is
http://wiki.opscode.com/display/chef/Chef+11+Server+Preview

any other docs? or is development on chef 11 just not far enough along
yet?

Chef 11 is planned to ship in a couple of months, and is pretty far along.

The Chef 11 API Server is written in erlang. Check out the initial
blog post for the "erchef" project here:

Introducing erchef - Chef Blog | Chef

The big feature here is scalability, as a lot of this work was driven
by our internal work scaling Opscode Hosted Chef.

The best way to get familiar with it now is to test it in a sandbox.
More documentation will come along with the release.

Bryan

5

Bryan is exactly spot-on as to the reasons for the port. We've run into several scaling issues with the existing Ruby server and CouchDB storage. The Erlang-based server consumes less memory, generally has better performance, and we've found (re-discovered?) relational databases to be a better match for our server-side needs.

See the links at the end of "Introducing erchef" (Introducing erchef - Chef Blog | Chef) if you're interested in the gory details.

--Kevin
On Sep 17, 2012, at 4:26 PM, John Wong wrote:

Exactly, what's the reason behind moving from Ruby API (I think it's in Ruby?) to Erlang API?
Is Chef itself rebuilt as well?

On Mon, Sep 17, 2012 at 4:00 PM, Bryan McLellan btm@loftninjas.org wrote:
On Mon, Sep 17, 2012 at 3:51 PM, kallen@groknaut.net wrote:

i'd like to read up on chef 11 as i make decisions on handling my current chef
10 infrastructure. i'd like to be prepared for what's coming, and make
informed decisions.

all i've found so far is
http://wiki.opscode.com/display/chef/Chef+11+Server+Preview

any other docs? or is development on chef 11 just not far enough along yet?

Chef 11 is planned to ship in a couple of months, and is pretty far along.

The Chef 11 API Server is written in erlang. Check out the initial
blog post for the "erchef" project here:

Introducing erchef - Chef Blog | Chef

The big feature here is scalability, as a lot of this work was driven
by our internal work scaling Opscode Hosted Chef.

The best way to get familiar with it now is to test it in a sandbox.
More documentation will come along with the release.

Bryan

6

On Monday, September 17, 2012 at 1:26 PM, John Wong wrote:

Exactly, what's the reason behind moving from Ruby API (I think it's in Ruby?) to Erlang API?
Is Chef itself rebuilt as well?

Nope, the client-side portion of Chef is in ruby and will remain so.

--
Daniel DeLeo