[chef] Re: Re: Re: Re: Bootstrapping a Chef Node using a Java

[Daniel Cukier < >]

Thanks John,

thats all I needed for now! 

Now I'll go through jcloud (to create nodes) and SSH access using Java (I'll try http://www.ganymed.ethz.ch/ssh2/). The rest is child candy!

All the best

Daniel Cukier

On Wed, Aug 3, 2011 at 2:10 PM, John E. Vincent (lusis) <lusis.org+ "> > wrote:

Here you go:

https://github.com/opscode/chef/tree/master/chef/lib/chef/knife/bootstrap

Here's a custom one I use for Natty:

https://gist.github.com/c52bab560b3dcb3402b7

They really aren't that hard to write. The main steps are:

- Get chef client installed
- Create /etc/chef/client.rb
- Create a firstboot json file
- Run chef-client

All you really need in first-boot.json is a run_list (mine are always
a single role plus a custom one-shot bootstrap recipe for a given
role). Chef client does all the work of registering itself with the
chef server.

On Wed, Aug 3, 2011 at 12:46 PM, Daniel Cukier < "> > wrote:
> Thanks John and Noah.
> In fact, I did some tests and it won't be possible to run chef inside the
> JVM. My only option is to provision the machine using jcloud and then run
> the bootstrap scripts via ssh.
> John, where can I find the bootstrap templates you mentioned?
> Thanks
>
> On Tue, Aug 2, 2011 at 7:49 PM, John E. Vincent (lusis)
> <lusis.org+ "> > wrote:
>>
>> Daniel,
>>
>> Take a look at jclouds if you need provisioning in Java. From there, you
>> can either bake in the client in the AMI or shellout to run knife bootstrap.
>> Remember that knife bootstraps are nothing more than a shell script in an
>> ssh session. Take a look at any of the bootstrap templates to get a real
>> idea. All the client node registration is done by chef-client not knife in
>> bootstrap scenarios.
>>
>> However you aren't going to be able to really reimplement chef in Java and
>> running the client on JRuby isn't possible.
>>
>> You might be able to use jruby and pull in the chef gems for some API
>> interaction if need be.
>>
>> In the end, Chef is written in ruby. Whatever awkward requirements are
>> going to have to accept that.
>>
>> If that's a nonstarter you can also look at creating custom Whirr scripts.
>>
>> On Aug 2, 2011 6:38 PM, "Daniel Cukier" < "> > wrote:
>> >
>> > Hi everybody,
>> >
>> > I'm developing a web service in Java on a system that needs to
>> > provision, create, remove nodes.
>> >
>> > I have this restriction that the web service must be developed in Java.
>> > This web service must:
>> >
>> >  1 - create nodes on different Cloud environments (EC2, rackspace,
>> > openstack, etc)
>> >  2 - Bootstrap these nodes with chef and one or 2 roles
>> >
>> > How do you suggest creating this web service? I thought about doing
>> > system calls to knife, but I don't think this is a good idea. Is there any
>> > Java specific library that is similar to knife, a library that I can
>> > provision cloud nodes (like knife ec2) and bootstrap chef (life knife
>> > bootstrap)?
>> >
>> > Thank you very much for the help
>> >
>> > Daniel Cukier
>