Table of contents
1.
Introduction🤓 
2.
Configuring config.rb for Chef Vault🎯 
3.
Vault Commands🧑‍💻 
4.
Vault Common Options📕 
5.
Example Commands💯 
5.1.
create 
5.2.
update 
5.3.
remove 
5.4.
refresh 
5.5.
isvault 
5.6.
itemtype 
6.
Frequently Asked Questions❓
6.1.
How do you use Chef vault?
6.2.
What is chef can you use to store secret information?
6.3.
What are the phases of Chef execution?
6.4.
What are chef resources?
6.5.
What is Knife command?
7.
Conclusion
Last Updated: Aug 13, 2025
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Overview of Chef Vault

Author ANJU JAISWAL
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Introduction🤓 

Hello Ninja🥷, you must want to know what is Chef Vault?. How is it configured to know all details about it? This blog will surely help you🙌.

overview of chef vault

Chef Workstation and Chef Infra Client come with the Ruby Gem chef vault. Using asymmetric keys, Chef Vault enables you to encrypt a data bag item. Only the nodes whose public keys are listed on the list that Chef Vault receives from your nodes can decrypt the contents of data bag items. Chef Vault is integrated into Chef Workstation and Chef Infra Client through the chef-vault Ruby Gem. The chef vault uses the knife vault subcommand.

Configuring config.rb for Chef Vault🎯 

Add the following line to the config.rb file to make "client" the default mode.

knife[:vault_mode] = 'client'

 

Add the following line to the config.rb file to set the default list of admins for building and upgrading vaults.

knife[:vault_admins] = [ 'example-alice', 'example-bob', 'example-carol' ]

 

Syntax 

knife vault SUBCOMMAND VAULT ITEM VALUES

 

Where:

  • Vault names the place where the encrypted item will be kept.
  • Item names the item stored in the vault.
  • Values contain the information that will be secured in the vault and encrypted.

Vault Commands🧑‍💻 

The following are the vault commands:

  • knife vault delete VAULT ITEM (options)

 

  • knife vault create VAULT ITEM VALUES (options)

 

  • knife vault edit VAULT ITEM (options)

 

  • knife vault download VAULT ITEM PATH (options)

 

  • knife vault itemtype VAULT ITEM (options)

 

  • knife vault isvault VAULT ITEM (options)

 

  • knife vault refresh VAULT ITEM

 

  • knife vault list (options)

 

  • knife vault rotate all keys

 

  • knife vault update VAULT ITEM VALUES (options)

 

  • knife vault remove VAULT ITEM VALUES (options)

 

  • knife vault show VAULT [ITEM] [VALUES] (options)

 

  • knife vault rotate keys VAULT ITEM (options)

Vault Common Options📕 

Some of the vault common options are given:

           Vault Common Options                     Description
-A, --admins ADMINS Users of Chef will be made admins
-d, -disable-editing Instead of opening EDITOR, accept the data as-is.
-s, --server-url URL Chef Infra Server URL
-c, --config CONFIG Override a single configuration option
--chef-zero-host HOST Host to start chef-zero on
-C, --clients CLIENTS Use colored output, defaults to enabled
-k, --key KEY API Client Key

 

Example Commands💯 

create 

Create a vault called "passwords," and then add an item called "root" to it. It should have the encrypted username and password for clients with the roles of "webserver," "client," and "client2."

knife vault create passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -C "client1,client2"

 

Create a vault called "passwords," and add an item called "root" to it. Fill it with the encrypted username and password for clients with the roles of "webserver," "client1," and "client2," as well as administrators admin1 and admin2, as follows:

knife vault createthe passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -C "client1,client2" -A "admin1,admin2"

 

Create a vault called "passwords" and add an item called "root" to it. Fill it with the username and password encrypted for clients with the roles of "webserver" and "admins," "admin1" and "admin2," as well as the following values:

knife vault create the passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -A "admin1,admin2"

 

update 

In the vault passwords and item root, update the username and password values. Will replace any already-existing values, if any!

knife vault update the passwords root '{"username": "root", "password": "password"}'

 

Change the username and password values in the vault passwords and item root, and add the roles of the webserver, clients 1 and 2, and admins 1 and 2. Clients 1 and 2 are encrypted, and admins 1 and 2 are encrypted. Will replace any already-existing values, if any!

knife vault update the passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -C "client1,client2" -A "admin1,admin2"

 

Change the username and password values in the vault passwords and item root, and add the roles of the webserver, clients 1 and 2, and admins 1 and 2. Clients 1 and 2 are encrypted, and admins 1 and 2 are encrypted admins. Will replace any already-existing values, if any!

knife vault update the passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -A "admin1,admin2"

 

remove 

Remove the values for the username and password fields from the vault passwords, along with item root, role: webserver, clients1 and clients2, and administrators1 and administrators2

knife vault remove the passwords root '{"username": "root", "password": "password"}' -S "role:webserver" -C "client1,client2" -A "admin1,admin2"

 

Take username and password values out of the vault passwords and item root.

knife vault remove the passwords root '{"username": "root", "password": "password"}'

 

Change the username and password values in the vault passwords, along with item root, role: webserver in the encrypted clients, and admin1 and admin2 in the encrypted admins.

knife vault remove the passwords root '{"username": "root", "password": "mypassword"}' -S "role:webserver" -A "admin1,admin2"

 

refresh 

With this command, the search query stored in the vault item is read, the search is run, and the results are applied again.

knife vault refresh VAULT ITEM

 

Add the —clean-unknown-clients flag to remove clients that have been deleted from Chef but not from the vault:

knife vault refresh passwords root --clean-unknown-clients

 

isvault 

This command determines whether the specified object is a vault or not, returning a status of 0 in the former case and 1 in the latter.

knife vault isvault VAULT ITEM

 

itemtype 

This command displays the data bag item's kind as usual, encrypted, or vault.

knife vault itemtype VAULT ITEM

 

Frequently Asked Questions❓

How do you use Chef vault?

This command displays the data bag item's kind as usual, encrypted, or vault. Run knife vault update using the vault name, the encrypted object inside the vault, the -A flag, and the user's login on the Chef Server if you need to add a new admin user. With the user's key on the Chef Server, this will encrypt a fresh copy of the shared secret.

What is chef can you use to store secret information?

Knife plugins are included in Chef Vault to let you manage the secrets from your workstation and upload them to the Chef Server, similarly to regular data bags. On the Chef Server, the secrets themselves are stored in Data Bags. For chef-vault, the "bag" is referred to as the "vault."

What are the phases of Chef execution?

The chef run-through has two phases. There is a build step, which organizes which resources must be used and fixes all variables. The actual execution of each resource throughout the run phase.

What are chef resources?

Chef resources are an example of an operating system component in their ideal state. It is a declaration of configuration policy that explains the desired state of a node to be reached by resource providers using the existing configuration.

What is Knife command?

The command-line tool for communicating with the Chef server is called Knife. It is used for managing other Chef features as well as uploading recipes. It offers a connection between the local machine's chef DK (Repo) and the Chef server. Chef nodes can be managed with its aid.

Conclusion

Congratulations, you made it here; in this article, we have covered a quick overview of Chef Vault, Vault Commands, Vault Common Options, and many examples of commands like create, update, refresh, and many more.

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