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150 lines
5.4 KiB
Plaintext
150 lines
5.4 KiB
Plaintext
---
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layout: api
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page_title: MongoDB - Database - Secrets Engines - HTTP API
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description: >-
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The MongoDB plugin for Vault's database secrets engine generates database
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credentials to access MongoDB servers.
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---
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# MongoDB Database Plugin HTTP API
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The MongoDB database plugin is one of the supported plugins for the database
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secrets engine. This plugin generates database credentials dynamically based on
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configured roles for the MongoDB database.
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## Configure Connection
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In addition to the parameters defined by the [Database
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Backend](/api/secret/databases#configure-connection), this plugin
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has a number of parameters to further configure a connection.
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| Method | Path |
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| :----- | :----------------------- |
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| `POST` | `/database/config/:name` |
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### Parameters
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- `connection_url` `(string: <required>)` – Specifies the MongoDB standard
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connection string (URI). This field can be templated and supports passing the
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username and password parameters in the following format {{field_name}}. A
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templated connection URL is required when using root credential rotation.
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- `write_concern` `(string: "")` - Specifies the MongoDB [write
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concern][mongodb-write-concern]. This is set for the entirety of the session,
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maintained for the lifecycle of the plugin process. Must be a serialized JSON
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object, or a base64-encoded serialized JSON object. The JSON payload values
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map to the values in the [Safe][mgo-safe] struct from the mgo driver.
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- `username` `(string: "")` - The root credential username used in the connection URL.
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- `password` `(string: "")` - The root credential password used in the connection URL.
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- `tls_certificate_key` `(string: "")` - x509 certificate for connecting to the database.
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This must be a PEM encoded version of the private key and the certificate combined.
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- `tls_ca` `(string: "")` - x509 CA file for validating the certificate presented by the
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MongoDB server. Must be PEM encoded.
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- `username_template` `(string)` - [Template](/docs/concepts/username-templating) describing how
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dynamic usernames are generated.
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<details>
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<summary><b>Default Username Template</b></summary>
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```
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{{ printf "v-%s-%s-%s-%s" (.DisplayName | truncate 15) (.RoleName | truncate 15) (random 20) (unix_time) | truncate 100 }}
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```
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<details>
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<summary><b>Example Usernames:</b></summary>
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| Example | |
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| ------------- | ---------------------------------------------------- |
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| `DisplayName` | `token` |
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| `RoleName` | `myrolename` |
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| Username | `v-token-myrolename-jNFRlKsZZMxJEx60o66i-1614294836` |
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| Example | |
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| ------------- | ------------------------------------------------------------------- |
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| `DisplayName` | `amuchlonger_dispname` |
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| `RoleName` | `role-name-with-dashes` |
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| Username | `v-amuchlonger_dis-role-name-with--jNFRlKsZZMxJEx60o66i-1614294836` |
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</details>
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</details>
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### Sample Payload
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```json
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{
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"plugin_name": "mongodb-database-plugin",
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"allowed_roles": "readonly",
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"connection_url": "mongodb://{{username}}:{{password}}@mongodb.acme.com:27017/admin?ssl=true",
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"write_concern": "{ \"wmode\": \"majority\", \"wtimeout\": 5000 }",
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"username": "admin",
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"password": "Password!"
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}
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```
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### Sample Request
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```shell-session
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$ curl \
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--header "X-Vault-Token: ..." \
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--request POST \
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--data @payload.json \
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http://127.0.0.1:8200/v1/database/config/mongodb
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```
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## Statements
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Statements are configured during role creation and are used by the plugin to
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determine what is sent to the database on user creation, renewing, and
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revocation. For more information on configuring roles see the [Role
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API](/api/secret/databases#create-role) in the database secrets engine docs.
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### Parameters
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The following are the statements used by this plugin. If not mentioned in this
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list the plugin does not support that statement type.
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- `creation_statements` `(string: <required>)` – Specifies the database
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statements executed to create and configure a user. Must be a
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serialized JSON object, or a base64-encoded serialized JSON object.
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The object can optionally contain a "db" string for session connection,
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and must contain a "roles" array. This array contains objects that holds
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a "role", and an optional "db" value, and is similar to the BSON document that
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is accepted by MongoDB's `roles` field. Vault will transform this array into
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such format. For more information regarding the `roles` field, refer to
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[MongoDB's documentation](https://docs.mongodb.com/manual/reference/method/db.createUser/).
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- `revocation_statements` `(string: "")` – Specifies the database statements to
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be executed to revoke a user. Must be a serialized JSON object, or a base64-encoded
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serialized JSON object. The object can optionally contain a "db" string. If no
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"db" value is provided, it defaults to the "admin" database.
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### Sample Creation Statement
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```json
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{
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"db": "admin",
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"roles": [
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{
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"role": "read",
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"db": "foo"
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}
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]
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}
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```
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### Sample Revocation Statement
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```json
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{
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"db": "vault-db"
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}
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```
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[mongodb-write-concern]: https://docs.mongodb.com/manual/reference/write-concern/
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[mgo-safe]: https://godoc.org/gopkg.in/mgo.v2#Safe
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