openssl_x509_crl Resource

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Resources Reference page


Use the openssl_x509_crl resource to generate PEM-formatted x509 certificate revocation list (CRL) files.

New in Chef Infra Client 14.4.

Syntax


The full syntax for all of the properties that are available to the openssl_x509_crl resource is:

openssl_x509_crl 'name' do
  ca_cert_file           String
  ca_key_file            String
  ca_key_pass            String
  expire                 Integer # default value: 8
  group                  String, Integer
  mode                   Integer, String
  owner                  String, Integer
  path                   String # default value: 'name' unless specified
  renewal_threshold      Integer # default value: 1
  revocation_reason      Integer # default value: 0
  serial_to_revoke       Integer, String
  action                 Symbol # defaults to :create if not specified
end

where:

  • openssl_x509_crl is the resource.
  • name is the name given to the resource block.
  • action identifies which steps Chef Infra Client will take to bring the node into the desired state.
  • ca_cert_file, ca_key_file, ca_key_pass, expire, group, mode, owner, path, renewal_threshold, revocation_reason, and serial_to_revoke are the properties available to this resource.

Actions


The openssl_x509_crl resource has the following actions:

:create
Default. Create the certificate revocation list file.
:nothing
This resource block does not act unless notified by another resource to take action. Once notified, this resource block either runs immediately or is queued up to run at the end of a Chef Infra Client run.

Properties


The openssl_x509_crl resource has the following properties:

ca_cert_file
Ruby Type: String | REQUIRED

The path to the CA X509 Certificate on the filesystem. If the ca_cert_file property is specified, the ca_key_file property must also be specified, the CRL will be signed with them.

ca_key_file
Ruby Type: String | REQUIRED

The path to the CA private key on the filesystem. If the ca_key_file property is specified, the ca_cert_file property must also be specified, the CRL will be signed with them.

ca_key_pass
Ruby Type: String

The passphrase for CA private key’s passphrase.

expire
Ruby Type: Integer | Default Value: 8

Value representing the number of days from now through which the issued CRL will remain valid. The CRL will expire after this period.

group
Ruby Type: String, Integer

The group permission for the CRL file.

mode
Ruby Type: Integer, String

The permission mode of the CRL file.

owner
Ruby Type: String, Integer

The owner permission for the CRL file.

path
Ruby Type: String | Default Value: The resource block's name

An optional property for specifying the path to write the file to if it differs from the resource block’s name.

renewal_threshold
Ruby Type: Integer | Default Value: 1

Number of days before the expiration. It this threshold is reached, the CRL will be renewed.

revocation_reason
Ruby Type: Integer | Default Value: 0

Reason for the revocation.

serial_to_revoke
Ruby Type: Integer, String

Serial of the X509 Certificate to revoke.


Common Resource Functionality


Chef resources include common properties, notifications, and resource guards.

Common Properties

The following properties are common to every resource:

compile_time

Ruby Type: true, false | Default Value: false

Control the phase during which the resource is run on the node. Set to true to run while the resource collection is being built (the compile phase). Set to false to run while Chef Infra Client is configuring the node (the converge phase).

ignore_failure

Ruby Type: true, false, :quiet | Default Value: false

Continue running a recipe if a resource fails for any reason. :quiet will not display the full stack trace and the recipe will continue to run if a resource fails.

retries

Ruby Type: Integer | Default Value: 0

The number of attempts to catch exceptions and retry the resource.

retry_delay

Ruby Type: Integer | Default Value: 2

The retry delay (in seconds).

sensitive

Ruby Type: true, false | Default Value: false

Ensure that sensitive resource data is not logged by Chef InfraClient.

Notifications

notifies

Ruby Type: Symbol, 'Chef::Resource[String]'

A resource may notify another resource to take action when its state changes. Specify a 'resource[name]', the :action that resource should take, and then the :timer for that action. A resource may notify more than one resource; use a notifies statement for each resource to be notified.

If the referenced resource does not exist, an error is raised. In contrast, subscribes will not fail if the source resource is not found.

A timer specifies the point during a Chef Infra Client run at which a notification is run. The following timers are available:

:before

Specifies that the action on a notified resource should be run before processing the resource block in which the notification is located.

:delayed

Default. Specifies that a notification should be queued up, and then executed at the end of a Chef Infra Client run.

:immediate, :immediately

Specifies that a notification should be run immediately, per resource notified.

The syntax for notifies is:

notifies :action, 'resource[name]', :timer
subscribes

Ruby Type: Symbol, 'Chef::Resource[String]'

A resource may listen to another resource, and then take action if the state of the resource being listened to changes. Specify a 'resource[name]', the :action to be taken, and then the :timer for that action.

Note that subscribes does not apply the specified action to the resource that it listens to - for example:

file '/etc/nginx/ssl/example.crt' do
  mode '0600'
  owner 'root'
end

service 'nginx' do
  subscribes :reload, 'file[/etc/nginx/ssl/example.crt]', :immediately
end

In this case the subscribes property reloads the nginx service whenever its certificate file, located under /etc/nginx/ssl/example.crt, is updated. subscribes does not make any changes to the certificate file itself, it merely listens for a change to the file, and executes the :reload action for its resource (in this example nginx) when a change is detected.

If the other resource does not exist, the subscription will not raise an error. Contrast this with the stricter semantics of notifies, which will raise an error if the other resource does not exist.

A timer specifies the point during a Chef Infra Client run at which a notification is run. The following timers are available:

:before

Specifies that the action on a notified resource should be run before processing the resource block in which the notification is located.

:delayed

Default. Specifies that a notification should be queued up, and then executed at the end of a Chef Infra Client run.

:immediate, :immediately

Specifies that a notification should be run immediately, per resource notified.

The syntax for subscribes is:

subscribes :action, 'resource[name]', :timer

Guards

A guard property can be used to evaluate the state of a node during the execution phase of a Chef Infra Client run. Based on the results of this evaluation, a guard property is then used to tell Chef Infra Client if it should continue executing a resource. A guard property accepts either a string value or a Ruby block value:

  • A string is executed as a shell command. If the command returns 0, the guard is applied. If the command returns any other value, then the guard property is not applied. String guards in a powershell_script run Windows PowerShell commands and may return true in addition to 0.
  • A block is executed as Ruby code that must return either true or false. If the block returns true, the guard property is applied. If the block returns false, the guard property is not applied.

A guard property is useful for ensuring that a resource is idempotent by allowing that resource to test for the desired state as it is being executed, and then if the desired state is present, for Chef Infra Client to do nothing.

Properties

The following properties can be used to define a guard that is evaluated during the execution phase of a Chef Infra Client run:

not_if

Prevent a resource from executing when the condition returns true.

only_if

Allow a resource to execute only if the condition returns true.

Examples


The following examples demonstrate various approaches for using the openssl_x509_crl resource in recipes:

Create a certificate revocation file

openssl_x509_crl '/etc/ssl_test/my_ca.crl' do
  ca_cert_file '/etc/ssl_test/my_ca.crt'
  ca_key_file '/etc/ssl_test/my_ca.key'
end

Create a certificate revocation file for a particular serial

openssl_x509_crl '/etc/ssl_test/my_ca.crl' do
  ca_cert_file '/etc/ssl_test/my_ca.crt'
  ca_key_file '/etc/ssl_test/my_ca.key'
  serial_to_revoke C7BCB6602A2E4251EF4E2827A228CB52BC0CEA2F
end

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https://docs.chef.io/resources/openssl_x509_crl/