Property key_size must be one of: Integer! You passed nil.

[KTM25]

Chef::Exceptions::ValidationFailed
----------------------------------
Property key_size must be one of: Integer! You passed nil.

Cookbook Trace: (most recent call first)
----------------------------------------
/var/chef/cache/cookbooks/acme/resources/selfsigned.rb:44:in `block (2 levels) in class_from_file'
/var/chef/cache/cookbooks/acme/resources/selfsigned.rb:39:in `block in class_from_file'    

acme_selfsigned("test.example.com") do
action [:create]
default_guard_interpreter :default
declared_type :acme_selfsigned
recipe_name "ssl"
crt "/etc/ssl/test.example.com.crt"
key "/etc/ssl/test.example.com.key"
cn "test.example.com"
owner "root"
group "root"
end

System Info:
------------
chef_version=18.2.7
platform=ubuntu
platform_version=18.04
ruby=ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux]
program_name=/usr/bin/chef-client
executable=/opt/chef/bin/chef-client

Running handlers:
[2023-06-14T14:49:31-07:00] ERROR: Running exception handlers
Running handlers complete
[2023-06-14T14:49:31-07:00] ERROR: Exception handlers complete
Infra Phase failed. 0 resources updated in 04 seconds
[2023-06-14T14:49:31-07:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[2023-06-14T14:49:31-07:00] FATAL: ---------------------------------------------------------------------------------------
[2023-06-14T14:49:31-07:00] FATAL: PLEASE PROVIDE THE CONTENTS OF THE stacktrace.out FILE (above) IF YOU FILE A BUG REPORT
[2023-06-14T14:49:31-07:00] FATAL: ---------------------------------------------------------------------------------------
[2023-06-14T14:49:31-07:00] FATAL: Chef::Exceptions::ValidationFailed: acme_selfsigned[test.example.com] had an error: Chef::Exceptions::ValidationFailed: Property key_size must be one of: Integer! You passed nil.

>>>> Caused by Chef::Exceptions::ValidationFailed: Property key_size must be one of: Integer!  You passed nil.
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:445:in `_pv_is'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:113:in `block (2 levels) in validate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:110:in `each'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:110:in `block in validate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:98:in `each'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/mixin/params_validate.rb:98:in `validate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:540:in `validate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:750:in `coerce_and_validate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:742:in `stored_value_to_output'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:418:in `get'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:371:in `call'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/property.rb:595:in `key_size'
/var/chef/cache/cookbooks/acme/resources/selfsigned.rb:44:in `block (2 levels) in class_from_file'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_builder.rb:72:in `instance_exec'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_builder.rb:72:in `build'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/dsl/declare_resource.rb:313:in `build_resource'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/dsl/declare_resource.rb:265:in `declare_resource'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/dsl/resources.rb:36:in `file'
/var/chef/cache/cookbooks/acme/resources/selfsigned.rb:39:in `block in class_from_file'
(eval):2:in `block in action_create'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/provider.rb:304:in `instance_eval'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/provider.rb:304:in `compile_and_converge_action'
(eval):2:in `action_create'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/provider.rb:245:in `run_action'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource.rb:601:in `block in run_action'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource.rb:628:in `with_umask'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource.rb:600:in `run_action'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:74:in `run_action'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:108:in `block in run_all_actions'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:108:in `each'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:108:in `run_all_actions'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:132:in `block in converge'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/resource_list.rb:96:in `block in execute_each_resource'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/stepable_iterator.rb:114:in `call_iterator_block'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/stepable_iterator.rb:85:in `step'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/stepable_iterator.rb:103:in `iterate'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/stepable_iterator.rb:54:in `each_with_index'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/resource_collection/resource_list.rb:94:in `execute_each_resource'
/opt/chef/embedded/lib/ruby/3.1.0/forwardable.rb:238:in `execute_each_resource'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/runner.rb:130:in `converge'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/client.rb:869:in `block in converge'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/client.rb:864:in `catch'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/client.rb:864:in `converge'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/client.rb:888:in `converge_and_save'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/client.rb:298:in `run'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/application.rb:305:in `run_with_graceful_exit_option'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/application.rb:281:in `block in run_chef_client'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/local_mode.rb:42:in `with_server_connectivity'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/application.rb:264:in `run_chef_client'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/application/base.rb:352:in `run_application'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-18.2.7/lib/chef/application.rb:67:in `run'
/opt/chef/embedded/lib/ruby/gems/3.1.0/gems/chef-bin-18.2.7/bin/chef-client:25:in `<top (required)>'
/usr/bin/chef-client:180:in `load'
/usr/bin/chef-client:180:in `<main>'

[thoutenbos]

Is the default attribute file loaded?
https://github.com/schubergphilis/chef-acme/blob/master/attributes/default.rb#L29