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elasticsearch-keystore

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elasticsearch-keystore

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The elasticsearch-keystore command manages secure settings in the Elasticsearch keystore.

Synopsis

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bin/elasticsearch-keystore
( [add <settings>] [-f] [--stdin]
| [add-file (<setting> <path>)+]
| [create] [-p]
| [has-passwd]
| [list]
| [passwd]
| [remove <setting>]
| [show [-o <output-file>] <setting>]
| [upgrade]
) [-h, --help] ([-s, --silent] | [-v, --verbose])

Description

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This command should be run as the user that will run Elasticsearch.

Currently, all secure settings are node-specific settings that must have the same value on every node. Therefore you must run this command on every node.

When the keystore is password-protected, you must supply the password each time Elasticsearch starts.

Modifications to the keystore are not automatically applied to the running Elasticsearch node. Any changes to the keystore will take effect when you restart Elasticsearch. Some secure settings can be explicitly reloaded without restart.

Only some settings are designed to be read from the keystore. However, there is no validation to block unsupported settings from the keystore and they can cause Elasticsearch to fail to start. To see whether a setting is supported in the keystore, see the setting reference.

Parameters

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add <settings>: Adds settings to the keystore. Multiple setting names can be specified as arguments to the add command. By default, you are prompted for the values of the settings. If the keystore is password protected, you are also prompted to enter the password. If a setting already exists in the keystore, you must confirm that you want to overwrite the current value. If the keystore does not exist, you must confirm that you want to create a keystore. To avoid these two confirmation prompts, use the -f parameter.
add-file (<setting> <path>)+: Adds files to the keystore.
create: Creates the keystore.
-f, --force: When used with the add parameter, the command no longer prompts you before overwriting existing entries in the keystore. Also, if you haven’t created a keystore yet, it creates a keystore that is obfuscated but not password protected.
-h, --help: Returns all of the command parameters.
has-passwd: Returns a success message if the keystore exists and is password-protected. Otherwise, the command fails with exit code 1 and returns an error message.
list: Lists the settings in the keystore. If the keystore is password protected, you are prompted to enter the password.
-p: When used with the create parameter, the command prompts you to enter a keystore password. If you don’t specify the -p flag or if you enter an empty password, the keystore is obfuscated but not password protected.
passwd: Changes or sets the keystore password. If the keystore is password protected, you are prompted to enter the current password and the new one. You can optionally use an empty string to remove the password. If the keystore is not password protected, you can use this command to set a password.
remove <settings>: Removes settings from the keystore. Multiple setting names can be specified as arguments to the remove command.
show <setting>: Displays the value of a single setting in the keystore. Pass the -o (or --output) parameter to write the setting to a file. If writing to the standard output (the terminal) the setting’s value is always interpreted as a UTF-8 string. If the setting contains binary data (for example for data that was added via the add-file command), always use the -o option to write to a file.
-s, --silent: Shows minimal output.
-x, --stdin: When used with the add parameter, you can pass the settings values through standard input (stdin). Separate multiple values with carriage returns or newlines. See Add settings to the keystore.
upgrade: Upgrades the internal format of the keystore.
-v, --verbose: Shows verbose output.

Examples

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Create the keystore

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To create the elasticsearch.keystore, use the create command:

bin/elasticsearch-keystore create -p

You are prompted to enter the keystore password. A password-protected elasticsearch.keystore file is created alongside the elasticsearch.yml file.

Change the password of the keystore

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To change the password of the elasticsearch.keystore, use the passwd command:

bin/elasticsearch-keystore passwd

If the Elasticsearch keystore is password protected, you are prompted to enter the current password and then enter the new one. If it is not password protected, you are prompted to set a password.

List settings in the keystore

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To list the settings in the keystore, use the list command.

bin/elasticsearch-keystore list

If the Elasticsearch keystore is password protected, you are prompted to enter the password.

Add settings to the keystore

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Sensitive string settings, like authentication credentials for Cloud plugins, can be added with the add command:

bin/elasticsearch-keystore add the.setting.name.to.set

You are prompted to enter the value of the setting. If the Elasticsearch keystore is password protected, you are also prompted to enter the password.

You can also add multiple settings with the add command:

bin/elasticsearch-keystore add \
  the.setting.name.to.set \
  the.other.setting.name.to.set

You are prompted to enter the values of the settings. If the Elasticsearch keystore is password protected, you are also prompted to enter the password.

To pass the settings values through standard input (stdin), use the --stdin flag:

cat /file/containing/setting/value | bin/elasticsearch-keystore add --stdin the.setting.name.to.set

Values for multiple settings must be separated by carriage returns or newlines.

Add files to the keystore

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You can add sensitive files, like authentication key files for Cloud plugins, using the add-file command. Settings and file paths are specified in pairs consisting of setting path. The value of the setting will be the binary contents of the file path at the time the file is added to the keystore.

bin/elasticsearch-keystore add-file the.setting.name.to.set /path/example-file.json

You can add multiple files with the add-file command:

bin/elasticsearch-keystore add-file \
  the.setting.name.to.set /path/example-file.json \
  the.other.setting.name.to.set /path/other-example-file.json

If the Elasticsearch keystore is password protected, you are prompted to enter the password.

Show settings in the keystore

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To display the value of a setting in the keystore use the show command:

bin/elasticsearch-keystore show the.name.of.the.setting.to.show

If the setting contains binary data you should write it to a file with the -o (or --output) option:

bin/elasticsearch-keystore show -o my_file binary.setting.name

If the Elasticsearch keystore is password protected, you are prompted to enter the password.

Remove settings from the keystore

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To remove a setting from the keystore, use the remove command:

bin/elasticsearch-keystore remove the.setting.name.to.remove

You can also remove multiple settings with the remove command:

bin/elasticsearch-keystore remove \
  the.setting.name.to.remove \
  the.other.setting.name.to.remove

If the Elasticsearch keystore is password protected, you are prompted to enter the password.

Upgrade the keystore

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Occasionally, the internal format of the keystore changes. When Elasticsearch is installed from a package manager, an upgrade of the on-disk keystore to the new format is done during package upgrade. In other cases, Elasticsearch performs the upgrade during node startup. This requires that Elasticsearch has write permissions to the directory that contains the keystore. Alternatively, you can manually perform such an upgrade by using the upgrade command:

bin/elasticsearch-keystore upgrade

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