427 lines
14 KiB
Plaintext
427 lines
14 KiB
Plaintext
---
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layout: api
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page_title: ACL Binding Rules - HTTP API
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sidebar_title: Binding Rules
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description: The /acl/binding-rule endpoints manage Consul's ACL Binding Rules.
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---
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# ACL Binding Rule HTTP API
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-> **1.5.0+:** The binding rule APIs are available in Consul versions 1.5.0 and newer.
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The `/acl/binding-rule` endpoints [create](#create-a-binding-rule),
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[read](#read-a-binding-rule), [update](#update-a-binding-rule),
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[list](#list-binding-rules) and [delete](#delete-a-binding-rule) ACL binding
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rules in Consul.
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For more information on how to setup ACLs, please check
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the [ACL tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-setup-production).
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## Create a Binding Rule
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This endpoint creates a new ACL binding rule.
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| Method | Path | Produces |
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| ------ | ------------------- | ------------------ |
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| `PUT` | `/acl/binding-rule` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking),
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[consistency modes](/api/features/consistency),
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[agent caching](/api/features/caching), and
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[required ACLs](/api#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `acl:write` |
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### Parameters
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- `Description` `(string: "")` - Free form human readable description of the binding rule.
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- `AuthMethod` `(string: <required>)` - The name of the auth method that this
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rule applies to. This field is immutable.
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- `Selector` `(string: "")` - Specifies the expression used to match this rule
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against valid identities returned from an auth method validation. If empty
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this binding rule matches all valid identities returned from the auth method. For example:
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```text
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serviceaccount.namespace==default and serviceaccount.name!=vault
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```
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- `BindType` `(string: <required>)` - Specifies the way the binding rule
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affects a token created at login.
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- `BindType=service` - The computed bind name value is used as an
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`ACLServiceIdentity.ServiceName` field in the token that is created.
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```json
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{ ...other fields...
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"ServiceIdentities": [
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{ "ServiceName": "<computed BindName>" }
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]
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}
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```
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- `BindType=node` - The computed bind name value is used as an
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`ACLNodeIdentity.NodeName` field in the token that is created.
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```json
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{ ...other fields...
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"NodeIdentities": [
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{ "NodeName": "<computed BindName>", "Datacenter": "<local datacenter>" }
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]
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}
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```
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- `BindType=role` - The computed bind name value is used as a `RoleLink.Name`
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field in the token that is created. This binding rule will only apply if a
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role with the given name exists at login-time. If it does not then this
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rule is ignored.
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```json
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{ ...other fields...
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"Roles": [
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{ "Name": "<computed BindName>" }
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]
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}
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```
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- `BindName` `(string: <required>)` - The name to bind to a token at
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login-time. What it binds to can be adjusted with different values of the
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`BindType` field. This can either be a plain string or lightly templated
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using [HIL syntax](https://github.com/hashicorp/hil) to interpolate the same
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values that are usable by the `Selector` syntax. For example:
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```text
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prefixed-${serviceaccount.name}
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```
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- `Namespace` `(string: "")` <EnterpriseAlert inline /> - Specifies the namespace to
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create the binding rule. If not provided in the JSON body, the value of
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the `ns` URL query parameter or in the `X-Consul-Namespace` header will be used.
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If not provided, the namespace will be inherited from the request's ACL
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token or will default to the `default` namespace. Added in Consul 1.7.0.
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### Sample Payload
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```json
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{
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"Description": "example rule",
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"AuthMethod": "minikube",
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"Selector": "serviceaccount.namespace==default",
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"BindType": "service",
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"BindName": "{{ serviceaccount.name }}"
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}
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```
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### Sample Request
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```shell-session
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$ curl -X PUT \
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--data @payload.json \
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http://127.0.0.1:8500/v1/acl/binding-rule
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```
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### Sample Response
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```json
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{
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"ID": "000ed53c-e2d3-e7e6-31a5-c19bc3518a3d",
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"Description": "example rule",
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"AuthMethod": "minikube",
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"Selector": "serviceaccount.namespace==default",
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"BindType": "service",
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"BindName": "{{ serviceaccount.name }}",
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"CreateIndex": 17,
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"ModifyIndex": 17
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}
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```
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## Read a Binding Rule
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This endpoint reads an ACL binding rule with the given ID. If no
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binding rule exists with the given ID, a 404 is returned instead of a 200
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response.
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| Method | Path | Produces |
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| ------ | ----------------------- | ------------------ |
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| `GET` | `/acl/binding-rule/:id` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking),
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[consistency modes](/api/features/consistency),
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[agent caching](/api/features/caching), and
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[required ACLs](/api#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `YES` | `all` | `none` | `acl:read` |
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### Parameters
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- `id` `(string: <required>)` - Specifies the UUID of the ACL binding rule
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to read. This is required and is specified as part of the URL path.
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- `ns` `(string: "")` <EnterpriseAlert inline /> - Specifies the namespace to lookup
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the binding rule. This value can be specified as the `ns` URL query
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parameter or the `X-Consul-Namespace` header. If not provided by either,
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the namespace will be inherited from the request's ACL token or will default
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to the `default` namespace. Added in Consul 1.7.0.
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### Sample Request
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```shell-session
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$ curl -X GET http://127.0.0.1:8500/v1/acl/binding-rule/000ed53c-e2d3-e7e6-31a5-c19bc3518a3d
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```
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### Sample Response
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```json
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{
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"ID": "000ed53c-e2d3-e7e6-31a5-c19bc3518a3d",
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"Description": "example rule",
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"AuthMethod": "minikube",
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"Selector": "serviceaccount.namespace==default",
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"BindType": "service",
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"BindName": "{{ serviceaccount.name }}",
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"CreateIndex": 17,
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"ModifyIndex": 17
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}
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```
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## Update a Binding Rule
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This endpoint updates an existing ACL binding rule.
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| Method | Path | Produces |
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| ------ | ----------------------- | ------------------ |
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| `PUT` | `/acl/binding-rule/:id` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking),
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[consistency modes](/api/features/consistency),
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[agent caching](/api/features/caching), and
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[required ACLs](/api#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `acl:write` |
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### Parameters
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- `ID` `(string: <required>)` - Specifies the ID of the binding rule to update.
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This is required in the URL path but may also be specified in the JSON body.
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If specified in both places then they must match exactly.
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- `Description` `(string: "")` - Free form human readable description of the binding rule.
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- `AuthMethod` `(string: <required>)` - Specifies the name of the auth
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method that this rule applies to. This field is immutable so if present in
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the body then it must match the existing value. If not present then the value
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will be filled in by Consul.
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- `Selector` `(string: "")` - Specifies the expression used to match this rule
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against valid identities returned from an auth method validation. If empty
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this binding rule matches all valid identities returned from the auth method. For example:
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```text
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serviceaccount.namespace==default and serviceaccount.name!=vault
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```
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- `BindType` `(string: <required>)` - Specifies the way the binding rule
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affects a token created at login.
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- `BindType=service` - The computed bind name value is used as an
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`ACLServiceIdentity.ServiceName` field in the token that is created.
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```json
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{ ...other fields...
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"ServiceIdentities": [
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{ "ServiceName": "<computed BindName>" }
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]
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}
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```
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- `BindType=node` - The computed bind name value is used as an
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`ACLNodeIdentity.NodeName` field in the token that is created.
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```json
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{ ...other fields...
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"NodeIdentities": [
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{ "NodeName": "<computed BindName>", "Datacenter": "<local datacenter>" }
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]
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}
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```
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- `BindType=role` - The computed bind name value is used as a `RoleLink.Name`
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field in the token that is created. This binding rule will only apply if a
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role with the given name exists at login-time. If it does not then this
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rule is ignored.
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```json
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{ ...other fields...
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"Roles": [
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{ "Name": "<computed BindName>" }
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]
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}
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```
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- `BindName` `(string: <required>)` - The name to bind to a token at
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login-time. What it binds to can be adjusted with different values of the
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`BindType` field. This can either be a plain string or lightly templated
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using [HIL syntax](https://github.com/hashicorp/hil) to interpolate the same
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values that are usable by the `Selector` syntax. For example:
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```text
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prefixed-${serviceaccount.name}
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```
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- `Namespace` `(string: "")` <EnterpriseAlert inline /> - Specifies the namespace of
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the binding rule to update. If not provided in the JSON body, the value of
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the `ns` URL query parameter or in the `X-Consul-Namespace` header will be used.
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If not provided, the namespace will be inherited from the request's ACL
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token or will default to the `default` namespace. Added in Consul 1.7.0.
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### Sample Payload
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```json
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{
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"Description": "updated rule",
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"Selector": "serviceaccount.namespace=dev",
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"BindType": "role",
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"BindName": "{{ serviceaccount.name }}"
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}
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```
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### Sample Request
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```shell-session
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$ curl -X PUT \
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--data @payload.json \
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http://127.0.0.1:8500/v1/acl/binding-rule/000ed53c-e2d3-e7e6-31a5-c19bc3518a3d
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```
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### Sample Response
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```json
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{
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"ID": "000ed53c-e2d3-e7e6-31a5-c19bc3518a3d",
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"Description": "updated rule",
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"AuthMethod": "minikube",
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"Selector": "serviceaccount.namespace=dev",
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"BindType": "role",
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"BindName": "{{ serviceaccount.name }}",
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"CreateIndex": 17,
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"ModifyIndex": 18
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}
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```
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## Delete a Binding Rule
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This endpoint deletes an ACL binding rule.
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| Method | Path | Produces |
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| -------- | ----------------------- | ------------------ |
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| `DELETE` | `/acl/binding-rule/:id` | `application/json` |
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Even though the return type is application/json, the value is either true or
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false indicating whether the delete succeeded.
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking),
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[consistency modes](/api/features/consistency),
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[agent caching](/api/features/caching), and
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[required ACLs](/api#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `acl:write` |
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### Parameters
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- `id` `(string: <required>)` - Specifies the UUID of the ACL binding rule to
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delete. This is required and is specified as part of the URL path.
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- `ns` `(string: "")` <EnterpriseAlert inline /> - Specifies the namespace of the
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binding rule to delete. This value can be specified as the `ns` URL query
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parameter or the `X-Consul-Namespace` header. If not provided by either,
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the namespace will be inherited from the request's ACL token or will default
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to the `default` namespace. Added in Consul 1.7.0.
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### Sample Request
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```shell-session
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$ curl -X DELETE \
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http://127.0.0.1:8500/v1/acl/binding-rule/000ed53c-e2d3-e7e6-31a5-c19bc3518a3d
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```
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### Sample Response
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```json
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true
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```
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## List Binding Rules
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This endpoint lists all the ACL binding rules.
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| Method | Path | Produces |
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| ------ | -------------------- | ------------------ |
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| `GET` | `/acl/binding-rules` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking),
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[consistency modes](/api/features/consistency),
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[agent caching](/api/features/caching), and
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[required ACLs](/api#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `YES` | `all` | `none` | `acl:read` |
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## Parameters
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- `authmethod` `(string: "")` - Filters the binding rule list to those binding
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rules that are linked with the specific named auth method.
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- `ns` `(string: "")` <EnterpriseAlert inline /> - Specifies the namespace to list
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the binding rules for. This value can be specified as the `ns` URL query
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parameter or the `X-Consul-Namespace` header. If not provided by either,
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the namespace will be inherited from the request's ACL token or will default
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to the `default` namespace. The namespace may be specified as '\*' and then
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results will be returned for all namespaces. Added in Consul 1.7.0.
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## Sample Request
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```shell-session
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$ curl -X GET http://127.0.0.1:8500/v1/acl/binding-rules
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```
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### Sample Response
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```json
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[
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{
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"ID": "000ed53c-e2d3-e7e6-31a5-c19bc3518a3d",
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"Description": "example 1",
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"AuthMethod": "minikube-1",
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"BindType": "service",
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"BindName": "k8s-{{ serviceaccount.name }}",
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"CreateIndex": 17,
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"ModifyIndex": 17
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},
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{
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"ID": "b4f0a0a3-69f2-7a4f-6bef-326034ace9fa",
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"Description": "example 2",
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"AuthMethod": "minikube-2",
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"BindType": "service",
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"Selector": "serviceaccount.namespace==default",
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"BindName": "k8s-{{ serviceaccount.name }}",
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"CreateIndex": 18,
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"ModifyIndex": 18
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}
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]
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```
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