[BUG] ImmutableAttributeModification error

[RodrigoAyala]

I'm having the following error:

Chef::Exceptions::ImmutableAttributeModification
Node attributes are read-only when you do not specify which precedence level to set.
To set an attribute use code like `node.default["key"] = "value"'

It's related to nginx_conf/providers/file.rb , line 25.

locations['/']['proxy_pass'] = node['nginx_conf']['pre_socket'] + new_resource.socket

I'm using Chef: 11.4.0

Update: Maybe this could help: http://www.opscode.com/blog/2013/02/05/chef-11-in-depth-attributes-changes/

[mwhooker]

I'm also getting this error. I've configured my site in attributes

default[:nginx_conf][:confs] = [{
  'sentry' => {
    'socket' => "127.0.0.1:#{node[:sentry][:port]}"
  }
}]

I'm using vagrant 1.2.2 and chef 11.2.0

================================================================================

Error executing action `create` on resource 'nginx_conf_file[sentry]'

================================================================================




Chef::Exceptions::ImmutableAttributeModification

------------------------------------------------

Node attributes are read-only when you do not specify which precedence level to set. To set an attribute use code like `node.default["key"] = "value"'




Cookbook Trace:
---------------
/tmp/vagrant-chef-1/chef-solo-1/cookbooks/nginx_conf/providers/file.rb:24:in `block in class_from_file'


Resource Declaration:
---------------------
# In /tmp/vagrant-chef-1/chef-solo-1/cookbooks/nginx_conf/recipes/default.rb

 37:     nginx_conf_file name do
 38:       action conf['action']
 39:       cookbook conf['cookbook']
 40:       block conf['block']
 41:       listen conf['listen']
 42:       locations conf['locations']
 43:       options conf['options']
 44:       reload conf['reload']
 45:       root conf['root']
 46:       server_name conf['server_name']
 47:       socket conf['socket']
 48:       template conf['template']
 49:     end
 50:   end



Compiled Resource:
------------------
# Declared in /tmp/vagrant-chef-1/chef-solo-1/cookbooks/nginx_conf/recipes/default.rb:37:in `block (2 levels) in from_file'

nginx_conf_file("sentry") do
  action [:create]
  retries 0
  retry_delay 2
  cookbook_name :nginx_conf
  recipe_name "default"
  cookbook "nginx_conf"
  reload :delayed
  socket "127.0.0.1:9000"
  template "conf.erb"
end



[2013-04-29T03:38:31+00:00] INFO: Running queued delayed notifications before re-raising exception
[2013-04-29T03:38:31+00:00] DEBUG: Re-raising exception: Chef::Exceptions::ImmutableAttributeModification - nginx_conf_file[sentry] (nginx_conf::default line 37) had an error: Chef::Exceptions::ImmutableAttributeModification: Node attributes are read-only when you do not specify which precedence level to set. To set an attribute use code like `node.default["key"] = "value"'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/node/immutable_collections.rb:146:in `[]='
  /tmp/vagrant-chef-1/chef-solo-1/cookbooks/nginx_conf/providers/file.rb:24:in `block in class_from_file'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider/lwrp_base.rb:138:in `instance_eval'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider/lwrp_base.rb:138:in `block in action'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider.rb:118:in `run_action'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource.rb:586:in `run_action'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:50:in `run_action'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `block (2 levels) in converge'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `each'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `block in converge'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection.rb:94:in `block in execute_each_resource'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:116:in `call'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:116:in `call_iterator_block'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:85:in `step'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:104:in `iterate'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:55:in `each_with_index'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection.rb:92:in `execute_each_resource'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:81:in `converge'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:404:in `converge'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:469:in `do_run'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:200:in `run'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application.rb:190:in `run_chef_client'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:239:in `block in run_application'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:231:in `loop'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:231:in `run_application'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application.rb:73:in `run'
  /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/bin/chef-solo:25:in `<top (required)>'
  /usr/bin/chef-solo:23:in `load'
  /usr/bin/chef-solo:23:in `<main>'
[2013-04-29T03:38:31+00:00] ERROR: Running exception handlers
[2013-04-29T03:38:31+00:00] ERROR: Exception handlers complete
[2013-04-29T03:38:31+00:00] FATAL: Stacktrace dumped to /tmp/vagrant-chef-1/chef-stacktrace.out
[2013-04-29T03:38:31+00:00] DEBUG: Chef::Exceptions::ImmutableAttributeModification: nginx_conf_file[sentry] (nginx_conf::default line 37) had an error: Chef::Exceptions::ImmutableAttributeModification: Node attributes are read-only when you do not specify which precedence level to set. To set an attribute use code like `node.default["key"] = "value"'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/node/immutable_collections.rb:146:in `[]='
/tmp/vagrant-chef-1/chef-solo-1/cookbooks/nginx_conf/providers/file.rb:24:in `block in class_from_file'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider/lwrp_base.rb:138:in `instance_eval'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider/lwrp_base.rb:138:in `block in action'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/provider.rb:118:in `run_action'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource.rb:586:in `run_action'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:50:in `run_action'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `block (2 levels) in converge'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `each'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:82:in `block in converge'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection.rb:94:in `block in execute_each_resource'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:116:in `call'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:116:in `call_iterator_block'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:85:in `step'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:104:in `iterate'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection/stepable_iterator.rb:55:in `each_with_index'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/resource_collection.rb:92:in `execute_each_resource'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/runner.rb:81:in `converge'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:404:in `converge'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:469:in `do_run'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/client.rb:200:in `run'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application.rb:190:in `run_chef_client'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:239:in `block in run_application'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:231:in `loop'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application/solo.rb:231:in `run_application'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/lib/chef/application.rb:73:in `run'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.2.0/bin/chef-solo:25:in `<top (required)>'
/usr/bin/chef-solo:23:in `load'
/usr/bin/chef-solo:23:in `<main>'
[2013-04-29T03:38:31+00:00] FATAL: Chef::Exceptions::ImmutableAttributeModification: nginx_conf_file[sentry] (nginx_conf::default line 37) had an error: Chef::Exceptions::ImmutableAttributeModification: Node attributes are read-only when you do not specify which precedence level to set. To set an attribute use code like `node.default["key"] = "value"'
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