open-vault/website/source/api/secret/kv/kv-v2.html.md

layout	page_title	sidebar_title	sidebar_current	description
api	KV - Secrets Engines - HTTP API	K/V Version 2	api-http-secret-kv-v2	This is the API documentation for the Vault KV secrets engine.

KV Secrets Engine - Version 2 (API)

This is the API documentation for the Vault KV secrets engine while running in versioned mode. For general information about the usage and operation of the kv secrets engine, please see the Vault kv documentation.

This documentation assumes the kv secrets engine is enabled at the /secret path in Vault and that versioning has been enabled. Since it is possible to enable secrets engines at any location, please update your API calls accordingly.

Configure the KV Engine

This path configures backend level settings that are applied to every key in the key-value store.

Method	Path	Produces
POST	/secret/config	204 (empty body)

Parameters

• max_versions (int: 0) – The number of versions to keep per key. This value applies to all keys, but a key's metadata setting can overwrite this value. Once a key has more than the configured allowed versions the oldest version will be permanently deleted. Defaults to 10.

• cas_required (bool: false) – If true all keys will require the cas parameter to be set on all write requests.

Sample Payload

{
  "max_versions": 5,
  "cas_required": false
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/config

Read Secret Version

This endpoint retrieves the secret at the specified location.

Method	Path	Produces
GET	/secret/data/:path	200 application/json

Parameters

• path (string: <required>) – Specifies the path of the secret to read. This is specified as part of the URL.
• version (int: 0) - Specifies the version to return. If not set the latest version is returned.

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    https://127.0.0.1:8200/v1/secret/data/my-secret

Sample Response

{
  "data": {
    "data": {
        "foo": "bar"
    },
    "metadata": {
      "created_time": "2018-03-22T02:24:06.945319214Z",
      "deletion_time": "",
      "destroyed": false,
      "version": 1
    }
  },
}

Create/Update Secret

This endpoint creates a new version of a secret at the specified location. If the value does not yet exist, the calling token must have an ACL policy granting the create capability. If the value already exists, the calling token must have an ACL policy granting the update capability.

Method	Path	Produces
POST	/secret/data/:path	200 application/json

Parameters

• options (Map: <optional>) – An object that holds option settings.

  • cas (int: <optional>) - Set the "cas" value to use a Check-And-Set operation. If not set the write will be allowed. If set to 0 a write will only be allowed if the key doesn’t exist. If the index is non-zero the write will only be allowed if the key’s current version matches the version specified in the cas parameter.

• data (Map: <required>) – The contents of the data map will be stored and returned on read.

Sample Payload

{
  "options": {
      "cas": 0
  },
  "data": {
	  "foo": "bar",
	  "zip": "zap"
	}
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/data/my-secret

Sample Response

{
  "data": {
    "created_time": "2018-03-22T02:36:43.986212308Z",
    "deletion_time": "",
    "destroyed": false,
    "version": 1
  }
}

Delete Latest Version of Secret

This endpoint issues a soft delete of the secret's latest version at the specified location. This marks the version as deleted and will stop it from being returned from reads, but the underlying data will not be removed. A delete can be undone using the undelete path.

Method	Path	Produces
DELETE	/secret/data/:path	204 (empty body)

Parameters

• path (string: <required>) – Specifies the path of the secret to delete. This is specified as part of the URL.

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request DELETE \
    https://127.0.0.1:8200/v1/secret/data/my-secret

Delete Secret Versions

This endpoint issues a soft delete of the specified versions of the secret. This marks the versions as deleted and will stop them from being returned from reads, but the underlying data will not be removed. A delete can be undone using the undelete path.

Method	Path	Produces
POST	/secret/delete/:path	204 (empty body)

Parameters

• path (string: <required>) – Specifies the path of the secret to delete. This is specified as part of the URL.
• versions ([]int: <required>) - The versions to be deleted. The versioned data will not be deleted, but it will no longer be returned in normal get requests.

Sample Payload

{
    "versions": [1, 2]
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/delete/my-secret

Undelete Secret Versions

Undeletes the data for the provided version and path in the key-value store. This restores the data, allowing it to be returned on get requests.

Method	Path	Produces
POST	/secret/undelete/:path	204 (empty body)

Parameters

• path (string: <required>) – Specifies the path of the secret to undelete. This is specified as part of the URL.
• versions ([]int: <required>) - The versions to undelete. The versions will be restored and their data will be returned on normal get requests.

Sample Payload

{
    "versions": [1, 2]
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/undelete/my-secret

Destroy Secret Versions

Permanently removes the specified version data for the provided key and version numbers from the key-value store.

Method	Path	Produces
POST	/secret/destroy/:path	204 (empty body)

Parameters

• path (string: <required>) – Specifies the path of the secret to destroy. This is specified as part of the URL.
• versions ([]int: <required>) - The versions to destroy. Their data will be permanently deleted.

Sample Payload

{
    "versions": [1, 2]
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/destroy/my-secret

List Secrets

This endpoint returns a list of key names at the specified location. Folders are suffixed with /. The input must be a folder; list on a file will not return a value. Note that no policy-based filtering is performed on keys; do not encode sensitive information in key names. The values themselves are not accessible via this command.

Method	Path	Produces
LIST	/secret/metadata/:path	200 application/json

Parameters

• path (string: <required>) – Specifies the path of the secrets to list. This is specified as part of the URL.

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request LIST \
    https://127.0.0.1:8200/v1/secret/metadata/my-secret

Sample Response

The example below shows output for a query path of secret/ when there are secrets at secret/foo and secret/foo/bar; note the difference in the two entries.

{
  "data": {
    "keys": ["foo", "foo/"]
  },
}

Read Secret Metadata

This endpoint retrieves the metadata and versions for the secret at the specified path.

Method	Path	Produces
GET	/secret/metadata/:path	200 application/json

Parameters

• path (string: <required>) – Specifies the path of the secret to read. This is specified as part of the URL.

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    https://127.0.0.1:8200/v1/secret/metadata/my-secret

Sample Response

{
  "data": {
    "created_time": "2018-03-22T02:24:06.945319214Z",
    "current_version": 3,
    "max_versions": 0,
    "oldest_version": 0,
    "updated_time": "2018-03-22T02:36:43.986212308Z",
    "versions": {
      "1": {
        "created_time": "2018-03-22T02:24:06.945319214Z",
        "deletion_time": "",
        "destroyed": false
      },
      "2": {
        "created_time": "2018-03-22T02:36:33.954880664Z",
        "deletion_time": "",
        "destroyed": false
      },
      "3": {
        "created_time": "2018-03-22T02:36:43.986212308Z",
        "deletion_time": "",
        "destroyed": false
      }
    }
  }
}

Update Metadata

This endpoint creates a new version of a secret at the specified location. If the value does not yet exist, the calling token must have an ACL policy granting the create capability. If the value already exists, the calling token must have an ACL policy granting the update capability.

Method	Path	Produces
POST	/secret/metadata/:path	204 (empty body)

Parameters

• max_versions (int: 0) – The number of versions to keep per key. If not set, the backend’s configured max version is used. Once a key has more than the configured allowed versions the oldest version will be permanently deleted.

• cas_required (bool: false) – If true the key will require the cas parameter to be set on all write requests. If false, the backend’s configuration will be used. 

Sample Payload

{
  "max_versions": 5,
  "cas_required": false	
}

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request POST \
    --data @payload.json \
    https://127.0.0.1:8200/v1/secret/metadata/my-secret

Delete Metadata and All Versions

This endpoint permanently deletes the key metadata and all version data for the specified key. All version history will be removed.

Method	Path	Produces
DELETE	/secret/metadata/:path	204 (empty body)

Parameters

• path (string: <required>) – Specifies the path of the secret to delete. This is specified as part of the URL.

Sample Request

$ curl \
    --header "X-Vault-Token: ..." \
    --request DELETE \
    https://127.0.0.1:8200/v1/secret/metadata/my-secret