About Policyfile

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Note

Policyfile file is an optional way to manage role, environment, and community cookbook data.

Policyfile is a single document that is uploaded to the Chef server. It is associated with a group of nodes, cookbooks, and settings. When these nodes run, they run the recipes specified in the Policyfile run-list.

Warning

Policyfile is not integrated with Chef Automate and is not supported as part of a Chef Automate workflow.

Warning

Policyfile is intended to be used with Chef server 12.3 (and higher) and chef-client 12.8 (and higher).

Why Policyfile?

For some users of Chef, Policyfile will make it easier to test and promote code safely with a simpler interface. Policyfile improves the user experience and resolves real-world problems that some workflows built around Chef must deal with. The following sections discuss in more detail some of the good reasons to use Policyfile, including:

  • Focus the workflow on the entire system
  • Safer development workflows
  • Less expensive computation
  • Code visibility
  • Role mutability
  • Cookbook mutability
  • Replaces Berkshelf and the environment cookbook pattern

Focused System Workflows

The knife command line tool maps very closely to the Chef server API and the objects defined by it: roles, environments, run-lists, cookbooks, data bags, nodes, and so on. The chef-client assembles these pieces at run-time and configures a host to do useful work.

Policyfile focuses that workflow onto the entire system, rather than the individual components. For example, Policyfile describes whole systems, whereas each individual revision of the Policyfile.lock.json file uploaded to the Chef server describes a part of that system, inclusive of roles, environments, cookbooks, and the other Chef server objects necessary to configure that part of the system.

Safer Workflows

Policyfile encourages safer workflows by making it easier to publish development versions of cookbooks to the Chef server without the risk of mutating the production versions and without requiring a complicated versioning scheme to work around cookbook mutability issues. Roles are mutable and those changes are applied only to the nodes specified by the policy. Policyfile does not require any changes to your normal workflows. Use the same repositories you are already using, the same cookbooks, and workflows. Policyfile will prevent an updated cookbook or role from being applied immediately to all machines.

Code Visibility

When running Chef without Policyfile, the exact set of cookbooks that are applied to a node is defined by:

  • The node’s run_list property
  • Any roles that are present in the node’s run-list or recursively included by those roles
  • The environment, which restricts the set of valid cookbook versions for a node based on a variety of constraint operators
  • Dependencies, as defined by each cookbook’s metadata
  • Dependency resolution picks the “best” set of cookbooks that meet dependency and environment criteria

These conditions are re-evaluated every time the chef-client runs, which can make it harder to know which cookbooks will be run by the chef-client or what the effects of updating a role or uploading a new cookbook will be.

Policyfile simplifies this behavior by computing the cookbook set on the workstation, and then producing a readable document of that solution: a Policyfile.lock.json file. This pre-computed file is uploaded to the Chef server, and is then used by all of the chef-client runs that are managed by that particular policy group.

Less Expensive Computation

When running Chef without Policyfile, the Chef server loads dependency data for all known versions of all known cookbooks, and then runs an expensive computation to determine the correct set.

Policyfile moves this computation to the workstation, where it is done less frequently.

Role Mutability

When running Chef without Policyfile roles are global objects. Changes to roles are applied immediately to any node that contains that role in its run-list. This can make it hard to update roles and in some use cases discourages using roles at all.

Policyfile effectively replaces roles. Policyfile files are versioned automatically and new versions are applied to systems only when promoted.

Cookbook Mutability

When running Chef without Policyfile, existing versions of cookbooks are mutable. This is convenient for many use cases, especially if users upload in-development cookbook revisions to the Chef server. But this sometimes creates issues that are similar to role mutability by allowing those cookbook changes to be applied immediately to nodes that use that cookbook. Users account for this by rigorous testing processes to ensure that only fully integrated cookbooks are ever published. This process does enforce good development habits, but at the same time it shoudn’t be a required part of a workflow that ends with publishing an in-development cookbook to the Chef server for testing against real nodes.

Policyfile solves this issue by using a cookbook publishing API for the Chef server that does not provide cookbook mutability. Name collisions are prevented by storing cookbooks by name and an opaque identifier that is computed from the content of the cookbook itself.

For example, name/version collisions can occur when users temporarily fork an upstream cookbook. Even if the user contributes their change and the maintainer is responsive, there may be a period of time where the user needs their fork in order to make progress. This situation presents a versioning dilemma: if the user doesn’t update their own version, they must overwrite the existing copy of that cookbook on the Chef server, wheres if they do update the version number it might conflict with the version number of the future release of that upstream cookbook.

Opaque IDs

The opaque identifier that is computed from the content of a cookbook is the only place where an opaque identifier is necessary. When working with Policyfile, be sure to:

  • Use the same names and version contraints as normal in the Policyfile.rb file
  • Use the same references to cookbooks pulled from Chef Supermarket
  • Use the same branch, tag, and revision patterns for cookbooks pulled from git
  • Use the same paths for cookbooks pulled from disk

Extra metadata about the cookbook is stored and included in Chef server API responses and in the Policyfile.lock.json file, including the source of a cookbook (Chef Supermarket, git, local disk, etc.), as well as any upstream idenfiers, such as git revisions. For cookbooks that are loaded from the local disk that are in a git repo, the upstream URL, current revision ID, and the state of the repo are stored also.

The opaque identifier is mostly behind the scenes and is only visible once published to the Chef server. Cookbooks that are uploaded to the Chef server may have extended version numbers such as 1.0.0-dev.

Environment Cookbooks

Policyfile replaces the environment cookbook pattern that is often required by Berkshelf, along with a dependency solver and fetcher. That said, Policyfile does not replace all Berkshelf scenarios.

Policyfile.rb

A Policyfile file allows you to specify in a single document the cookbook revisions and recipes that should be applied by the chef-client. A Policyfile file is uploaded to the Chef server, where it is associated with a group of nodes. When these nodes are configured by the chef-client, the chef-client will make decisions based on settings in the policy file, and will build a run-list based on that information. A Policyfile file may be versioned, and then promoted through deployment stages to safely and reliably deploy new configuration.

Syntax

A Policyfile.rb is a Ruby file, in which a run-list and cookbook locations are specified. The syntax is as follows:

name "name"
run_list "ITEM", "ITEM", ...
default_source :SOURCE_TYPE, *args
cookbook "NAME" [, "VERSION_CONSTRAINT"] [, SOURCE_OPTIONS]

Settings

A Policyfile.rb file may contain the following settings:

name "name"
Required. The name of the policy. Use a name that reflects the purpose of the machines against which the policy will run.
run_list "ITEM", "ITEM", ...
Required. The run-list the chef-client will use to apply the policy to one (or more) nodes.
default_source :SOURCE_TYPE, *args

The location in which any cookbooks not specified by cookbook are located. Possible values: chef_repo, chef_server, :community, and :supermarket. Use more than one default_source to specify more than one location for cookbooks.

default_source :supermarket pulls cookbooks from the public Chef Supermarket.

default_source :supermarket, "https://mysupermarket.example" pulls cookbooks from a named private Chef Supermarket.

default_source :chef_server, "https://chef-server.example/organizations/example" pulls cookbooks from the Chef Server.

default_source :community is an alias for :supermarket.

default_source :chef_repo, "path/to/repo" pulls cookbooks from a monolithic cookbook repository. This may be a path to the top-level of a cookbook repository or to the /cookbooks directory within that repository.

Multiple cookbook sources may be specified. For example from the public Chef Supermarket and a monolithic repository:

default_source :supermarket
default_source :chef_repo, "path/to/repo"

or from both a public and private Chef Supermarket:

default_source :supermarket
default_source :supermarket, "https://supermarket.example"

Note

If a run-list or any dependencies require a cookbook that is present in more than one source, be explicit about which source is preferred. This will ensure that a cookbook is always pulled from an expected source. For example, an internally-developed cookbook named chef-client will conflict with the public chef-client cookbook that is maintained by Chef. To specify a named source for a cookbook:

default_source :supermarket
default_source :supermarket, "https://supermarket.example" do |s|
  s.preferred_for "chef-client"
end

List multiple cookbooks on the same line:

default_source :supermarket
default_source :supermarket, "https://supermarket.example" do |s|
  s.preferred_for "chef-client", "nginx", "mysql"
end
cookbook "NAME" [, "VERSION_CONSTRAINT"] [, SOURCE_OPTIONS]

Add cookbooks to the policy, specify a version constraint, or specify an alternate source location, such as Chef Supermarket. For example, add a cookbook:

cookbook "apache2"

Specify a version constraint:

run_list "jenkins::master"

# Restrict the jenkins cookbook to version 2.x, greater than 2.1
cookbook "jenkins", "~> 2.1"

Specify an alternate source:

cookbook 'my_app', path: 'cookbooks/my_app'

or:

cookbook 'mysql', github: 'opscode-cookbooks/mysql', branch: 'master'

or:

cookbook 'chef-ingredient', git: 'https://github.com/chef-cookbooks/chef-ingredient.git', tag: 'v0.12.0'
named_run_list "NAME", "ITEM1", "ITEM2", ...

Specify a named run-list to be used as an alternative to the override run-list. This setting should be used carefully and for specific use cases, like running a small set of recipes to quickly converge configuration for a single application on a host or for one-time setup tasks. For example:

named_run_list :update_app, "my_app_cookbook::default"

Example

For example:

name "jenkins-master"
run_list "java", "jenkins::master", "recipe[policyfile_demo]"
default_source :supermarket, "https://mysupermarket.example"
cookbook "policyfile_demo", path: "cookbooks/policyfile_demo"
cookbook "jenkins", "~> 2.1"
cookbook "mysql", github: "chef-cookbooks/mysql", branch: "master"

client.rb Settings

The following settings may be configured in the client.rb file for use with Policyfile:

named_run_list
The run-list associated with a policy file.
policy_group
The name of a policy group that exists on the Chef server. policy_name must also be specified.
policy_name
The name of a policy, as identified by the name setting in a Policyfile.rb file. policy_group must also be specified.
use_policyfile
The chef-client automatically checks the configuration, node JSON, and the stored node on the Chef server to determine if Policyfile files are being used, and then automatically updates this flag. Default value: false.

knife bootstrap

A node may be bootstrapped to use Policyfile files. Use the following options as part of the bootstrap command:

--policy-group POLICY_GROUP
The name of a policy group that exists on the Chef server.
--policy-name POLICY_NAME
The name of a policy, as identified by the name setting in a Policyfile.rb file.

For a customized bootstrap process, add policy_name and policy_group to the first-boot JSON file that is passed to the chef-client.

Test w/Kitchen

Kitchen may be used to test Policyfile files. Add the following to .kitchen.yml:

provisioner:
  name: policyfile_zero

A named run-list may be used on a per-suite basis:

suites:
  - name: client
    provisioner:
      named_run_list: test_client_recipe
  - name: server
    provisioner:
      named_run_list: test_server_recipe

or globally:

provisioner:
  name: policyfile_zero
  named_run_list: integration_test_run_list

chef Commands

The following commands are built into the chef executable and support the use of Policyfile files.

chef clean-policy-cookbooks

Use the chef clean-policy-cookbooks subcommand to delete cookbooks that are not used by Policyfile files. Cookbooks are considered unused when they are not referenced by any policy revisions on the Chef server.

Note

Cookbooks that are referenced by orphaned policy revisions are not removed. Use chef clean-policy-revisions to remove orphaned policies.

Syntax

This subcommand has the following syntax:

$ chef clean-policy-cookbooks (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef clean-policy-revisions

Use the chef clean-policy-revisions subcommand to delete orphaned policy revisions to Policyfile files from the Chef server. An orphaned policy revision is not associated to any policy group and therefore is not in active use by any node. Use chef show-policy --orphans to view a list of orphaned policy revisions.

Syntax

This subcommand has the following syntax:

$ chef clean-policy-revisions (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef delete-policy

Use the chef delete-policy subcommand to delete all revisions of the named policy that exist on the Chef server. (The state of the policy revision is backed up locally and may be restored using the chef undelete subcommand.)

Syntax

This subcommand has the following syntax:

$ chef delete-policy POLICY_NAME (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef delete-policy-group

Use the chef delete-policy-group subcommand to delete the named policy group from the Chef server. Any policy revision associated with that policy group is not deleted. (The state of the policy group is backed up locally and may be restored using the chef undelete subcommand.)

Syntax

This subcommand has the following syntax:

$ chef delete-policy-group POLICY_GROUP (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef diff

Use the chef diff subcommand to display an itemized comparison of two revisions of a Policyfile.lock.json file.

Syntax

This subcommand has the following syntax:

$ chef diff POLICY_FILE --head | --git POLICY_GROUP | POLICY_GROUP...POLICY_GROUP (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-g GIT_REF, --git GIT_REF
Compare the specified git reference against the current revision of a Policyfile.lock.json file or against another git reference.
-h, --help
Show help for the command.
--head
A shortcut for chef diff --git HEAD. When a git-specific flag is not provided, the on-disk Policyfile.lock.json file is compared to one on the Chef server or (if a Policyfile.lock.json file is not present on-disk) two Policyfile.lock.json files in the specified policy group on the Chef server are compared.
--[no-]pager
Use --pager to enable paged output for a Policyfile.lock.json file. Default value: --pager.
-v, --version
The version of the chef-client.

Examples

Compare current lock to latest commit on latest branch

$ chef diff --git HEAD

Compare current lock with latest commit on master branch

$ chef diff --git master

Compare current lock to specified revision

$ chef diff --git v1.0.0

Compare lock on master branch to lock on revision

$ chef diff --git master...dev

Compare lock for version with latest commit on master branch

$ chef diff --git v1.0.0...master

Compare current lock with latest lock for policy group

$ chef diff staging

Compare locks for two policy groups

$ chef diff production...staging

chef export

Use the chef export subcommand to create a chef-zero-compatible chef-repo that contains the cookbooks described by a Policyfile.lock.json file. After a chef-zero-compatible chef-repo is copied to a node, the policy can be applied locally on that machine by running chef-client -z (local mode).

Syntax

This subcommand has the following syntax:

$ chef export POLICY_FILE DIRECTORY (options)

Configuration Settings

The client.rb file on that machine requires the following settings:

deployment_group
This setting should be set to '$POLICY_NAME-local'.
policy_document_native_api
This setting should be set to false.
use_policyfile
This setting should be set to true.
versioned_cookbooks
This setting should be set to true.

Options

This subcommand has the following options:

-a, --archive
Export an archive as a tarball, instead as a directory. Default value: false.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-f, --force
Remove the contents of the destination directory if that directory is not empty. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef generate policyfile

Use the chef generate policyfile subcommand to generate a file to be used with Policyfile.

Syntax

This subcommand has the following syntax:

$ chef generate policyfile POLICY_NAME (options)

Options

This subcommand has the following options:

-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef generate repo

Use the chef generate repo subcommand to create a chef-repo. By default, the repo is a cookbook repo with options available to support generating a cookbook that supports Policyfile.

Note

This subcommand requires using one (or more) of the options (below) to support Policyfile files.

Syntax

This subcommand has the following syntax:

$ chef generate repo REPO_NAME (options)

Options

This subcommand has the following options:

-h, --help
Show help for the command.
-p, --policy-only
Create a repository that does not store cookbook files, only Policyfile files.
-P, --policy
Use Policyfile instead of Berkshelf.
-r, --roles
Create directories for /roles and /environments instead of creating directories for Policyfile.
-v, --version
The version of the chef-client.

Examples

None.

chef install

Use the chef install subcommand to evaluate a policy file and find a compatible set of cookbooks, build a run-list, cache it locally, and then emit a Policyfile.lock.json file that describes the locked policy set. The Policyfile.lock.json file may be used to install the locked policy set to other machines and may be pushed to a policy group on the Chef server to apply that policy to a group of nodes that are under management by Chef.

Syntax

This subcommand has the following syntax:

$ chef install POLICY_FILE (options)

Options

This subcommand has the following options:

-D, --debug
Enable stack traces and other debug output.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Policyfile.lock.json

When the chef install command is run, the Chef development kit caches any necessary cookbooks and emits a Policyfile.lock.json file that describes:

  • The versions of cookbooks in use
  • A Hash of cookbook content
  • The source for all cookbooks

A Policyfile.lock.json file is associated with a specific policy group, i.e. is associated with one (or more) nodes that use the same revision of a given policy.

A Policyfile.lock.json file is similar to:

{
  "revision_id": "288ed244f8db8bff3caf58147e840bbe079f76e0",
  "name": "jenkins",
  "run_list": [
    "recipe[java::default]",
    "recipe[jenkins::master]",
    "recipe[policyfile_demo::default]"
  ],
  "cookbook_locks": {
    "policyfile_demo": {
      "version": "0.1.0",
      "identifier": "f04cc40faf628253fe7d9566d66a1733fb1afbe9",
      "dotted_decimal_identifier": "67638399371010690.23642238397896298.25512023620585",
      "source": "cookbooks/policyfile_demo",
      "cache_key": null,
      "scm_info": null,
      "source_options": {
        "path": "cookbooks/policyfile_demo"
      }
    },
  "java": {
    "version": "1.24.0",
    "identifier": "4c24ae46a6633e424925c24e683e0f43786236a3",
    "dotted_decimal_identifier": "21432429158228798.18657774985439294.16782456927907",
    "cache_key": "java-1.24.0-supermarket.chef.io",
    "origin": "https://supermarket.chef.io/api/v1/cookbooks/java/versions/1.24.0/download",
    "source_options": {
      "artifactserver": "https://supermarket.chef.io/api/v1/cookbooks/java/versions/1.24.0/download",
      "version": "1.24.0"
    }

Examples

None.

chef provision

Use the chef provision subcommand to invoke an embedded chef-client run to provision machines using Chef provisioning. By default, this subcommand expects to find a cookbook named provision in the current working directory. The chef-client run will run a recipe in this cookbook that uses Chef provisioning to create one (or more) machines.

The chef provision subcommand is intended to:

  • Provide a provisioning mechanism that supports using Policyfile.rb files
  • Support naming conventions within Chef provisioning
  • Integrate Chef provisioning steps with the command-line tools that are packaged with the Chef development kit
  • Separate the configuration of provisioned machines from running Chef provisioning
  • Allow provisioning to be managed as code and versioned (via Policyfile.rb files), as opposed to the legacy knife bootstrap behavior, which is primarily driven by command-line options

Syntax

This subcommand has the following syntax:

To create machines that operate using only a local Policyfile.rb:

$ chef provision POLICY_GROUP --policy-name POLICY_NAME (options)

To create machines that operate using a Policyfile.rb that is synchronized with the Chef server before each chef-client run:

$ chef provision POLICY_GROUP --sync PATH (options)

To create machines that will not use a Policyfile.rb file:

$ chef provision --no-policy (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
--cookbook COOKBOOK_PATH
Specify the location of the cookbook that is used to provision the node. Default value: ./provision.
-d, --destroy
Set the default action for the machine resource to :destroy. Default value: false.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-n NODE_NAME, --node-name NODE_NAME
Specify the name of the node. (This value may be overridden by the cookbook that is used to provision the node.)
-o OPT=VALUE, --opt OPT=VALUE

Set an arbitrary command-line option (OPT) and value (=VALUE). Use this option once per command-line option. Default value: {}.

Note

Use the extra_chef_config property in a recipe in the provision cookbook to set arbitrary configuration settings. Define the extra_chef_config values in the provision cookbook using the following syntax:

ChefDK::ProvisioningData.context.extra_chef_config = 'setting :value'

For example:

ChefDK::ProvisioningData.context.extra_chef_config = 'log_level :debug'
-p POLICY_NAME, --policy-name POLICY_NAME
Set the policy name for one (or more) machines that are managed by this Policyfile.rb file.
--[no-]policy
Use --policy to enable one (or more) machines to be managed by a Policyfile.rb file. Default value: --policy.
-r RECIPE, --recipe RECIPE
Specify the name of the recipe to be run. This recipe must be located in the policyfile cookbook at the path specified by the --cookbook option.
-s PATH, --sync PATH
Push a Policyfile.rb file to the Chef server before running the chef-client on a node. The PATH is the location of the Policyfile.rb file to be synchronized.
-t REMOTE_HOST, --target REMOTE_HOST
Set the hostname or IP address of the host on which the chef-client run will occur. (This value may be overridden by the cookbook that is used to provision the node.)
-v, --version
The version of the chef-client.

Examples

Create a machine with lock file, synchronized to the Chef server

with_driver 'vagrant:~/.vagrant.d/boxes' do

  # Set machine options
  options = {
    vagrant_options: { 'vm.box' => 'opscode-ubuntu-14.04' },
    # Set all machine options to default values
    convergence_options: ChefDK::ProvisioningData.context.convergence_options
  }

  # Set node name to --node-name
  machine context.node_name do
    machine_options(options)

    # Force a Chef run every time and set action to --destroy option
    action(ChefDK::ProvisioningData.context.action)
  end
end

and then to provision the machine, run the following:

$ chef provision test123 --sync -n aar-dev

This will synchronize the Policyfile.lock.json file to the Chef server, and then run the chef-client on the node. .. code-block:: bash

Recipe: code_generator::cookbook
  • directory[/Users/grantmc/chefdocs] action create - create new directory /Users/grantmc/chefdocs
  • template[/Users/grantmc/chefdocs/metadata.rb] action create - create new file /Users/grantmc/chefdocs/metadata.rb
  • template[/Users/grantmc/chefdocs/README.md] action create - create new file /Users/grantmc/chefdocs/README.md
  • cookbook_file[/Users/grantmc/chefdocs/chefignore] action create - create new file /Users/grantmc/chefdocs/chefignore
  • cookbook_file[/Users/grantmc/chefdocs/Berksfile] action create - create new file /Users/grantmc/chefdocs/Berksfile
  • template[/Users/grantmc/chefdocs/.kitchen.yml] action create - create new file /Users/grantmc/chefdocs/.kitchen.yml
  • directory[/Users/grantmc/chefdocs/recipes] action create - create new directory /Users/grantmc/chefdocs/recipes
  • template[/Users/grantmc/chefdocs/recipes/default.rb] action create - create new file /Users/grantmc/chefdocs/recipes/default.rb
  • execute[initialize-git] action run - execute git init .
  • cookbook_file[/Users/grantmc/chefdocs/.gitignore] action create - create new file /Users/grantmc/chefdocs/.gitignore

and which creates a directory structure similar to:

/chefdocs
  /.git
      .gitignore
  .kitchen.yml
  Berksfile
  chefignore
  metadata.rb
  README.md
  /recipes
    default.rb

Pass arbitrary options

Use the --opt option to pass arbitrary command-line options. For example:

$ chef provision (other options) --opt foo=bar

Use the --opt option more than once to pass more than one option. For example:

$ chef provision (other options) --opt foo=bar --opt baz=qux

chef push

Use the chef push subcommand to upload an existing Policyfile.lock.json file to the Chef server, along with all of the cookbooks that are contained in the Policyfile.lock.json file. The Policyfile.lock.json file will be applied to the specified policy group, which is a set of nodes that share the same run-list and cookbooks.

Syntax

This subcommand has the following syntax:

$ chef push POLICY_GROUP POLICY_FILE (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef push-archive

The chef push-archive subcommand is used to publish a policy archive file to the Chef server. (A policy archive is created using the chef export subcommand.) The policy archive is assigned to the speciified policy group, which is a set of nodes that share the same run-list and cookbooks.

Syntax

This subcommand has the following syntax:

$ chef push-archive POLICY_GROUP ARCHIVE_FILE (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.

chef show-policy

Use the chef show-policy subcommand to display revisions for every Policyfile.rb file that is on the Chef server. By default, only active policy revisions are shown. When both a policy and policy group are specified, the contents of the active Policyfile.lock.json file for the policy group is returned.

Syntax

This subcommand has the following syntax:

$ chef show-policy POLICY_NAME POLICY_GROUP (options)

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-o, --orphans
Show policy revisions that are not currently assigned to any policy group.
--[no-]pager
Use --pager to enable paged output for a Policyfile.lock.json file. Default value: --pager.
-v, --version
The version of the chef-client.

Examples

None.

chef undelete

Use the chef undelete subcommand to recover a deleted policy or policy group. This command:

  • Does not detect conflicts. If a deleted item has been recreated, running this command will overwrite it
  • Does not include cookbooks that may be referenced by policy files; cookbooks that are cleaned after running this command may not be fully restorable to their previous state
  • Does not store access control data

Syntax

This subcommand has the following syntax:

$ chef undelete (options)

When run with no arguments, returns a list of available operations.

Options

This subcommand has the following options:

-c CONFIG_FILE, --config CONFIG_FILE
The path to the knife configuration file.
-D, --debug
Enable stack traces and other debug output.
-h, --help
Show help for the command.
-i ID, --id ID
Undo the delete operation specified by ID.
-l, --last
Undo the most recent delete operation.
--list
Default. Return a list of available operations.
-v, --version
The version of the chef-client.

Examples

None.

chef update

Use the chef update subcommand to read the Policyfile.rb file, and then apply any changes. This will resolve dependencies and will create a Policyfile.lock.json file. The locked policy will reflect any changes to the run-list and will pull in any cookbook updates that are compatible with any version constraints defined in the Policyfile.rb file.

Syntax

This subcommand has the following syntax:

$ chef update POLICY_FILE (options)

Options

This subcommand has the following options:

-a, --attributes
Update attributes. Default value: false.
-D, --debug
Enable stack traces and other debug output. Default value: false.
-h, --help
Show help for the command.
-v, --version
The version of the chef-client.

Examples

None.