A set of executables that provide complete CLI access to Puppet's core data types. They also provide Interface classes for each of the core data types, which are extensible via plugins.
For instance, you can create a new action for catalogs at lib/puppet/interface/catalog/$action.rb.
This is a Puppet module and should work fine if you install it in Puppet's module path.
Note that this only works with Puppet 2.6.next (and thus will work with 2.6.5), because there is otherwise a bug in finding Puppet applications. You also have to either install the lib files into your Puppet libdir, or you need to add this lib directory to your RUBYLIB.
This is meant to be tested and iterated upon, with the plan that it will be merged into Puppet core once we're satisfied with it.
The general usage is:
$ puppet <interface> <verb> <name>
So, e.g.:
$ puppet facts find myhost.domain.com
$ puppet node destroy myhost
You can use it to list all known data types and the available terminus classes:
$ puppet interface list
catalog : active_record, compiler, queue, rest, yaml
certificate : ca, file, rest
certificate_request : ca, file, rest
certificate_revocation_list : ca, file, rest
file_bucket_file : file, rest
inventory : yaml
key : ca, file
node : active_record, exec, ldap, memory, plain, rest, yaml
report : processor, rest, yaml
resource : ral, rest
resource_type : parser, rest
status : local, rest
But most interestingly, you can use it for two main purposes:
- As a client for any Puppet REST server, such as catalogs, facts, reports, etc.
- As a local CLI for any local Puppet data
A simple case is looking at the local facts:
$ puppet facts find localhost
If you're on the server, you can look in that server's fact collection:
$ puppet facts --mode master --vardir /tmp/foo --terminus yaml find localhost
Note that we're setting both the vardir and the 'mode', which switches from the default 'agent' mode to server mode (requires a patch in my branch).
If you'd prefer the data be outputted in json instead of yaml, well, you can do that, too:
$ puppet find --mode master facts --vardir /tmp/foo --terminus yaml --format pson localhost
To test using it as an endpoint for compiling and retrieving catalogs from a remote server, (from my commit), try this:
# Terminal 1
$ sbin/puppetmasterd --trace --confdir /tmp/foo --vardir /tmp/foo --debug --manifest ~/bin/test.pp --certname localhost --no-daemonize
# Terminal 2
$ sbin/puppetd --trace --debug --confdir /tmp/foo --vardir /tmp/foo --certname localhost --server localhost --test --report
# Terminal 3, actual testing
$ puppet catalog find localhost --certname localhost --server localhost --mode master --confdir /tmp/foo --vardir /tmp/foo --trace --terminus rest
This compiles a test catalog (assuming that ~/bin/test.pp exists) and returns it. With the right auth setup, you can also get facts:
$ puppet facts find localhost --certname localhost --server localhost --mode master --confdir /tmp/foo --vardir /tmp/foo --trace --terminus rest
Or use IRB to do the same thing:
$ irb
>> require 'puppet/interface'
=> true
>> interface = Puppet::Interface.interface(:facts).new
=> #<Puppet::Interface::Facts:0x1024a1390 @format=:yaml>
>> facts = interface.find("myhost"); nil
Like I said, a prototype, but I'd love it if people would play it with some and make some recommendations.
Like most parts of Puppet, these are easy to extend. Just drop a new action into a given interface's directory. E.g.:
$ cat lib/puppet/interface/catalog/select.rb
# Select and show a list of resources of a given type.
Puppet::Interface.interface(:catalog) do
action :select do
invoke do |host,type|
catalog = Puppet::Resource::Catalog.indirection.find(host)
catalog.resources.reject { |res| res.type != type }.each { |res| puts res }
end
end
end
$ puppet catalog select localhost Class
Class[main]
Class[Settings]
$
Notice that this gets loaded automatically when you try to use it. So, if you have a simple command you've written, such as for cleaning up nodes or diffing catalogs, you an port it to this framework and it should fit cleanly.
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