knife-data-bag(1) - Store arbitrary data on a Chef Server

1. knife-data-bag(1)
2. Chef Manual
3. knife-data-bag(1)

## NAME

`knife-data-bag` - Store arbitrary data on a Chef Server

## SYNOPSIS

knife data bag sub-command (options)

## DESCRIPTION

Data bags are stores of arbitrary JSON data. Each data bag is a collection that may contain many items. Data Bag Items are indexed by the Chef Server and can be searched via knife-search(1).

Data bags are available to all nodes configured by chef-client(8), and are therefore a convenient mechanism to store global information, such as lists of administrative accounts that should be configured on all hosts.

## DATA BAG SUB-COMMANDS

## CREATE

knife data bag create bag name [item id] (options)

`-s`, `--secret SECRET`
  A secret key used to encrypt the data bag item. See encryption support below.
`--secret-file SECRET_FILE`
  The path to a file containing the secret key to be used to encrypt the data bag item.

If item id is given, creates a new, empty data bag item and opens it for editing in your editor. The data bag will be created if it does not exist.

If item id is not given, the data bag will be created.

## DELETE

knife data bag delete bag name [item id] (options)

Delete a data bag, or an item from a data bag.

## EDIT

knife data bag edit bag name item id (options)

`-s`, `--secret SECRET`
  A secret key used to encrypt the data bag item. See encryption support below.
`--secret-file SECRET_FILE`
  The path to a file containing the secret key to be used to encrypt the data bag item.

Edit an item in a data bag.

## FROM FILE

knife data bag from file bag name file (options)

knife data bag from file bag name file1 file2 file3 (options)

knife data bag from file bag name folder (options)

`-s`, `--secret SECRET`
  A secret key used to encrypt the data bag item. See encryption support below.
`--secret-file SECRET_FILE`
  The path to a file containing the secret key to be used to encrypt the data bag item.

Load a data bag item from a JSON file. If file is a relative or absolute path to the file, that file will be used. Otherwise, the file parameter is treated as the base name of a data bag file in a Chef repository, and `knife` will search for the file in `./data_bags/bag_name/file`. For example `knife data bag from file users dan.json` would attempt to load the file `./data_bags/users/dan.json`.

## LIST

knife data bag list (options)

`-w`, `--with-uri`
  Show corresponding URIs

Lists the data bags that exist on the Chef Server.

## SHOW

knife data bag show BAG [ITEM] (options)

`-s`, `--secret SECRET`
  A secret key used to encrypt the data bag item. See encryption support below.
`--secret-file SECRET_FILE`
  The path to a file containing the secret key to be used to encrypt the data bag item.

Show a specific data bag or an item in a data bag. The output will be formatted according to the --format option.

## ENCRYPTION SUPPORT

Data Bag Items may be encrypted to keep their contents secret. This may be desireable when storing sensitive information such as database passwords, API keys, etc.

Data Bag Item encryption uses the AES-256 CBC symmetric key algorithm.

CAVEATS: Keys are not encrypted; only values are encrypted. The "id" of a Data Bag Item is not encrypted, since it is used by Chef Server to store the item in its database. For example, given the following data bag item: {"id": "important_passwords", "secret_password": "opensesame"} The key "secret_password" will be visible to an evesdropper, but the value "opensesame" will be protected. Both the key "id" and its value "important_passwords" will be visible to an evesdropper.

Chef Server does not provide a secure mechanism for distributing encryption keys.

## SEE ALSO

knife-search(1)

## AUTHOR

Chef was written by Adam Jacob adam@opscode.com with many contributions from the community.

## DOCUMENTATION

This manual page was written by Joshua Timberman joshua@opscode.com. Permission is granted to copy, distribute and / or modify this document under the terms of the Apache 2.0 License.

## CHEF

Knife is distributed with Chef. http://wiki.opscode.com/display/chef/Home

1. Chef 11.8.2
2. December 2013
3. knife-data-bag(1)