disabling ssl_verify_mode

Error message

       Recipe: chef-server::default
         * ruby_block[ensure node can resolve API FQDN] action run (skipped due to not_if)
         * chef_ingredient[chef-server] action install
         Recipe: <Dynamically Defined Resource>
           * chef_gem[mixlib-install] action install (up to date)
           * ruby_block[stop chef run] action nothing (skipped due to action :nothing)
           * apt_package[chef-server] action install (up to date)
            (up to date)
       Recipe: chef-server::default
         * file[/tmp/kitchen/cache/chef-server-core.firstrun] action create (up to date)
         * ingredient_config[chef-server] action render
           * directory[/etc/opscode] action create (up to date)
           * file[/etc/opscode/chef-server.rb] action create (up to date)
            (up to date)
       Recipe: wrapped_chef-server::default
         * chef_user[someone] action create[2016-04-21T00:10:15+00:00] ERROR: SSL Validation failure connecting to host: localhost - SSL_connect returned=1 errno=0 state=error: certificate verify failed


           ================================================================================
           Error executing action `create` on resource 'chef_user[someone]'
           ================================================================================

           OpenSSL::SSL::SSLError
           ----------------------
           SSL Error connecting to https://localhost/users/someone - SSL_connect returned=1 errno=0 state=error: certificate verify failed

           Resource Declaration:
           ---------------------
           # In /opt/chef/embedded/lib/ruby/gems/2.1.0/gems/chef-12.9.38/lib/chef/dsl/cheffish.rb

            50:             self.#{method_name}(*args, &block)
            51:           end

           Compiled Resource:
           ------------------
           # Declared in /opt/chef/embedded/lib/ruby/gems/2.1.0/gems/chef-12.9.38/lib/chef/dsl/cheffish.rb:50:in `chef_user'

           chef_user("someone") do
             action [:create]
             retries 0
             retry_delay 2
             default_guard_interpreter :default
             chef_server {:chef_server_url=>"https://localhost", :signing_key_filename=>"/etc/opscode/pivotal.pem", :client_name=>"pivotal", :options=>{:api_version=>"0"}}
             declared_type :chef_user
             cookbook_name "dockerhp_chef-server"
             recipe_name "default"
             source_key "-----BEGIN PUBLIC KEY-----\nxxxx\n-----END PUBLIC KEY-----\n"
           end

           Platform:
           ---------
           x86_64-linux


       Running handlers:
       [2016-04-21T00:10:15+00:00] ERROR: Running exception handlers
       Running handlers complete
       [2016-04-21T00:10:15+00:00] ERROR: Exception handlers complete
       Chef Client failed. 0 resources updated in 06 seconds
       [2016-04-21T00:10:15+00:00] FATAL: Stacktrace dumped to /tmp/kitchen/cache/chef-stacktrace.out
       [2016-04-21T00:10:15+00:00] FATAL: Please provide the contents of the stacktrace.out file if you file a bug report
       [2016-04-21T00:10:15+00:00] ERROR: chef_user[someone] (dockerhp_chef-server::default line 50) had an error: OpenSSL::SSL::SSLError: SSL Error connecting to https://localhost/users/someone - SSL_connect returned=1 errno=0 state=error: certificate verify failed
       [2016-04-21T00:10:17+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)
>>>>>> Converge failed on instance <chefserver-debian-84>.
>>>>>> Please see .kitchen/logs/chefserver-debian-84.log for more details
>>>>>> ------Exception-------
>>>>>> Class: Kitchen::ActionFailed
>>>>>> Message: SSH exited (1) for command: [sh -c '

sudo -E /opt/chef/bin/chef-client --local-mode --config /tmp/kitchen/client.rb --log_level auto --force-formatter --no-color --json-attributes /tmp/kitchen/dna.json --chef-zero-port 8889
']
>>>>>> ----------------------
zlib(finalizer): the stream was freed prematurely.

recipe.rb

include_recipe 'chef-server::default'

Chef::Config.ssl_verify_mode :verify_none
chef_user 'someone' do
  chef_server chef_server_url: 'https://localhost',
    signing_key_filename: '/etc/opscode/pivotal.pem',
    client_name: 'pivotal'
  source_key <<-eos
-----BEGIN PUBLIC KEY-----
xxxx
-----END PUBLIC KEY-----
  eos
end