384 lines
14 KiB
Markdown
384 lines
14 KiB
Markdown
---
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layout: api
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page_title: ACLs - HTTP API
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sidebar_current: api-acl
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description: |-
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The /acl endpoints manage the Consul's ACL system.
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---
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-> **1.4.0+:** This API documentation is for Consul versions 1.4.0 and later. The documentation for the legacy ACL API is [here](/api/acl/legacy.html)
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# ACL HTTP API
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The `/acl` endpoints are used to manage ACL tokens and policies in Consul, [bootstrap the ACL system](#bootstrap-acls), [check ACL replication status](#check-acl-replication), and [translate rules](#translate-rules). There are additional pages for managing [tokens](/api/acl/tokens.html) and [policies](/api/acl/policies.html) with the `/acl` endpoints.
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For more information on how to setup ACLs, please see
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the [ACL Guide](https://learn.hashicorp.com/consul/advanced/day-1-operations/production-acls).
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## Bootstrap ACLs
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This endpoint does a special one-time bootstrap of the ACL system, making the first
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management token if the [`acl.tokens.master`](/docs/agent/options.html#acl_tokens_master)
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configuration entry is not specified in the Consul server configuration and if the
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cluster has not been bootstrapped previously. This is available in Consul 0.9.1 and later,
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and requires all Consul servers to be upgraded in order to operate.
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This provides a mechanism to bootstrap ACLs without having any secrets present in Consul's
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configuration files.
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| Method | Path | Produces |
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| ------ | ---------------------------- | -------------------------- |
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| `PUT` | `/acl/bootstrap` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `none` |
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### Sample Request
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```text
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$ curl \
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--request PUT \
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http://127.0.0.1:8500/v1/acl/bootstrap
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```
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### Sample Response
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-> **Deprecated** - The `ID` field in the response is for legacy compatibility and is a copy of the `SecretID` field. New
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applications should ignore the `ID` field as it may be removed in a future major Consul version.
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```json
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{
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"ID": "527347d3-9653-07dc-adc0-598b8f2b0f4d",
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"AccessorID": "b5b1a918-50bc-fc46-dec2-d481359da4e3",
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"SecretID": "527347d3-9653-07dc-adc0-598b8f2b0f4d",
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"Description": "Bootstrap Token (Global Management)",
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"Policies": [
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{
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"ID": "00000000-0000-0000-0000-000000000001",
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"Name": "global-management"
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}
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],
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"Local": false,
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"CreateTime": "2018-10-24T10:34:20.843397-04:00",
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"Hash": "oyrov6+GFLjo/KZAfqgxF/X4J/3LX0435DOBy9V22I0=",
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"CreateIndex": 12,
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"ModifyIndex": 12
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}
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```
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You can detect if something has interfered with the ACL bootstrapping process by
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checking the response code. A 200 response means that the bootstrap was a success, and
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a 403 means that the cluster has already been bootstrapped, at which point you should
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consider the cluster in a potentially compromised state.
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The returned token will have unrestricted privileges to manage all details of the system.
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It can then be used to further configure the ACL system. Please see the
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[ACL Guide](https://learn.hashicorp.com/consul/security-networking/production-acls) for more details.
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## Check ACL Replication
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This endpoint returns the status of the ACL replication processes in the
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datacenter. This is intended to be used by operators or by automation checking
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to discover the health of ACL replication.
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Please see the [ACL Replication Guide](https://learn.hashicorp.com/consul/day-2-operations/acl-replication)
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for more details.
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| Method | Path | Produces |
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| ------ | ---------------------------- | -------------------------- |
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| `GET` | `/acl/replication` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `consistent` | `none` | `none` |
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### Parameters
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- `dc` `(string: "")` - Specifies the datacenter to query. This will default to
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the datacenter of the agent being queried. This is specified as part of the
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URL as a query parameter.
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### Sample Request
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```text
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$ curl \
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--request GET \
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http://127.0.0.1:8500/v1/acl/replication
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```
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### Sample Response
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```json
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{
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"Enabled": true,
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"Running": true,
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"SourceDatacenter": "dc1",
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"ReplicationType" : "tokens",
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"ReplicatedIndex": 1976,
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"ReplicatedTokenIndex": 2018,
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"LastSuccess": "2018-11-03T06:28:58Z",
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"LastError": "2016-11-03T06:28:28Z"
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}
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```
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- `Enabled` - Reports whether ACL replication is enabled for the datacenter.
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- `Running` - Reports whether the ACL replication process is running. The process
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may take approximately 60 seconds to begin running after a leader election
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occurs.
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- `SourceDatacenter` - The authoritative ACL datacenter that ACLs are being
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replicated from and will match the
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[`primary_datacenter`](/docs/agent/options.html#primary_datacenter) configuration.
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- `ReplicationType` - The type of replication that is currently in use.
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- `legacy` - ACL replication is in legacy mode and is replicating legacy ACL tokens.
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- `policies` - ACL replication is only replicating policies as token replication
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is disabled.
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- `tokens` - ACL replication is replicating both policies and tokens.
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- `ReplicatedIndex` - The last index that was successfully replicated. Which data
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the replicated index refers to depends on the replication type. For `legacy`
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replication this can be compared with the value of the `X-Consul-Index` header
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returned by the [`/v1/acl/list`](/api/acl/legacy.html#acl_list) endpoint to
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determine if the replication process has gotten all available ACLs. When in either
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`tokens` or `policies` mode, this index can be compared with the value of the
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`X-Consul-Index` header returned by the [`/v1/acl/polcies`](/api/acl/policies.html#list-policies)
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endpoint to determine if the policy replication process has gotten all available
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ACL policies. Note that ACL replication is rate limited so the indexes may lag behind
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the primary datacenter.
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- `ReplicatedTokenIndex` - The last token index that was successfully replicated.
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This index can be compared with the value of the `X-Consul-Index` header returned
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by the [`/v1/acl/tokens`](/api/acl/tokens.html#list) endpoint to determine
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if the replication process has gotten all available ACL tokens. Note that ACL
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replication is rate limited so the indexes may lag behind the primary
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datacenter.
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- `LastSuccess` - The UTC time of the last successful sync operation. Since ACL
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replication is done with a blocking query, this may not update for up to 5
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minutes if there have been no ACL changes to replicate. A zero value of
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"0001-01-01T00:00:00Z" will be present if no sync has been successful.
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- `LastError` - The UTC time of the last error encountered during a sync
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operation. If this time is later than `LastSuccess`, you can assume the
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replication process is not in a good state. A zero value of
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"0001-01-01T00:00:00Z" will be present if no sync has resulted in an error.
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## Translate Rules
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-> **Deprecated** - This endpoint was introduced in Consul 1.4.0 for migration from the previous ACL system. It
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will be removed in a future major Consul version when support for legacy ACLs is removed.
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This endpoint translates the legacy rule syntax into the latest syntax. It is intended
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to be used by operators managing Consul's ACLs and performing legacy token to new policy
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migrations.
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| Method | Path | Produces |
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| ------ | --------------------------- | -------------------------- |
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| `POST` | `/acl/rules/translate` | `text/plain` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#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:read` |
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### Sample Payload
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```text
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agent "" {
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policy = "read"
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}
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```
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### Sample Request
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```text
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$ curl -X POST -d @rules.hcl http://127.0.0.1:8500/v1/acl/rules/translate
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```
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### Sample Response
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```text
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agent_prefix "" {
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policy = "read"
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}
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```
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## Translate a Legacy Token's Rules
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-> **Deprecated** - This endpoint was introduced in Consul 1.4.0 for migration from the previous ACL system.. It
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will be removed in a future major Consul version when support for legacy ACLs is removed.
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This endpoint translates the legacy rules embedded within a legacy ACL into the latest
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syntax. It is intended to be used by operators managing Consul's ACLs and performing
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legacy token to new policy migrations. Note that this API requires the auto-generated
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Accessor ID of the legacy token. This ID can be retrieved using the
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[`/v1/acl/token/self`](/api/acl/tokens.html#self) endpoint.
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| Method | Path | Produces |
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| ------ | ----------------------------------- | -------------------------- |
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| `GET` | `/acl/rules/translate/:accessor_id` | `text/plain` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#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:read` |
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### Sample Request
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```text
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$ curl -X GET http://127.0.0.1:8500/v1/acl/rules/translate/4f48f7e6-9359-4890-8e67-6144a962b0a5
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```
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### Sample Response
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```text
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agent_prefix "" {
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policy = "read"
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}
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```
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## Login to Auth Method
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This endpoint was added in Consul 1.5.0 and is used to exchange an [auth
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method](/docs/acl/acl-auth-methods.html) bearer token for a newly-created
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Consul ACL token.
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| Method | Path | Produces |
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| ------ | ---------------------------- | -------------------------- |
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| `POST` | `/acl/login` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `none` |
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-> **Note** - To use the login process to create tokens in any connected
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secondary datacenter, [ACL
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replication](/docs/agent/options.html#acl_enable_token_replication) must be
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enabled. Login requires the ability to create local tokens which is restricted
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to the primary datacenter and any secondary datacenters with ACL token
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replication enabled.
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### Parameters
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- `AuthMethod` `(string: <required>)` - The name of the auth method to use for login.
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- `BearerToken` `(string: <required>)` - The bearer token to present to the
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auth method during login for authentication purposes. For the Kubernetes auth
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method this is a [Service Account Token
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(JWT)](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#service-account-tokens).
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- `Meta` `(map<string|string>: nil)` - Specifies arbitrary KV metadata
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linked to the token. Can be useful to track origins.
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### Sample Payload
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```json
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{
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"AuthMethod": "minikube",
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"BearerToken": "eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9..."
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}
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```
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### Sample Request
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```sh
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$ curl \
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--request POST \
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--data @payload.json \
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http://127.0.0.1:8500/v1/acl/login
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```
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### Sample Response
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```json
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{
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"AccessorID": "926e2bd2-b344-d91b-0c83-ae89f372cd9b",
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"SecretID": "b78d37c7-0ca7-5f4d-99ee-6d9975ce4586",
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"Description": "token created via login",
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"Roles": [
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{
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"ID": "3356c67c-5535-403a-ad79-c1d5f9df8fc7",
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"Name": "demo"
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}
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],
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"ServiceIdentities": [
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{
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"ServiceName": "example"
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}
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],
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"Local": true,
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"AuthMethod": "minikube",
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"CreateTime": "2019-04-29T10:08:08.404370762-05:00",
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"Hash": "nLimyD+7l6miiHEBmN/tvCelAmE/SbIXxcnTzG3pbGY=",
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"CreateIndex": 36,
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"ModifyIndex": 36
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}
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```
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## Logout from Auth Method
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This endpoint was added in Consul 1.5.0 and is used to destroy a token created
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via the [login endpoint](#login-to-auth-method). The token deleted is specified
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with the `X-Consul-Token` header or the `token` query parameter.
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| Method | Path | Produces |
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| ------ | ---------------------------- | -------------------------- |
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| `POST` | `/acl/logout` | `application/json` |
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The table below shows this endpoint's support for
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | ------------- | ------------ |
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| `NO` | `none` | `none` | `none` |
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-> **Note** - This endpoint requires no specific privileges as it is just
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deleting a token for which you already must possess its secret.
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### Sample Request
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```sh
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$ curl \
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-H "X-Consul-Token: b78d37c7-0ca7-5f4d-99ee-6d9975ce4586" \
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--request POST \
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http://127.0.0.1:8500/v1/acl/logout
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```
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