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api ACL Policies - HTTP API api-acl-policies The /acl/policy endpoints manage Consul's ACL Policies.

-> 1.4.0+: The APIs are available in Consul versions 1.4.0 and later. The documentation for the legacy ACL API is here

ACL Policy HTTP API

The /acl/policy endpoints create, read, update, list and delete ACL policies in Consul.

For more information on how to setup ACLs, please see the ACL Guide.

Create a Policy

This endpoint creates a new ACL policy.

Method Path Produces
PUT /acl/policy application/json

The table below shows this endpoint's support for blocking queries, consistency modes, agent caching, and required ACLs.

Blocking Queries Consistency Modes Agent Caching ACL Required
NO none none acl:write

Parameters

  • Name (string: <required>) - Specifies a name for the ACL policy. The name can contain alphanumeric characters, dashes -, and underscores _. This name must be unique.

  • Description (string: "") - Free form human readable description of the policy.

  • Rules (string: "") - Specifies rules for the ACL policy. The format of the Rules property is detailed in the ACL Rules documentation.

  • Datacenters (array<string>) - Specifies the datacenters the policy is valid within. When no datacenters are provided the policy is valid in all datacenters including those which do not yet exist but may in the future.

  • Namespace (string: "") - (Enterprise Only) Specifies the namespace to create the policy. If not provided in the JSON body, the value of the ns URL query parameter or in the X-Consul-Namespace header will be used. If not provided at all, the namespace will default to the default namespace. Added in Consul 1.7.0.

Sample Payload

{
  "Name": "node-read",
  "Description": "Grants read access to all node information",
  "Rules": "node_prefix \"\" { policy = \"read\"}",
  "Datacenters": ["dc1"]
}

Sample Request

$ curl -X PUT \
    --data @payload.json \
    http://127.0.0.1:8500/v1/acl/policy

Sample Response

{
    "ID": "e359bd81-baca-903e-7e64-1ccd9fdc78f5",
    "Name": "node-read",
    "Description": "Grants read access to all node information",
    "Rules": "node_prefix \"\" { policy = \"read\"}",
    "Datacenters": [
        "dc1"
    ],
    "Hash": "OtZUUKhInTLEqTPfNSSOYbRiSBKm3c4vI2p6MxZnGWc=",
    "CreateIndex": 14,
    "ModifyIndex": 14
}

Read a Policy

This endpoint reads an ACL policy with the given ID.

Method Path Produces
GET /acl/policy/:id application/json

The table below shows this endpoint's support for blocking queries, consistency modes, agent caching, and required ACLs.

Blocking Queries Consistency Modes Agent Caching ACL Required
YES all none acl:read

Parameters

  • id (string: <required>) - Specifies the UUID of the ACL policy to read. This is required and is specified as part of the URL path.

  • ns (string: "") - (Enterprise Only) Specifies the namespace to lookup the policy. This value can be specified as the ns URL query parameter or the X-Consul-Namespace header. If not provided by either, the namespace will default to the default namespace. Added in Consul 1.7.0.

Sample Request

$ curl -X GET http://127.0.0.1:8500/v1/acl/policy/e359bd81-baca-903e-7e64-1ccd9fdc78f5

Sample Response

{
    "ID": "e359bd81-baca-903e-7e64-1ccd9fdc78f5",
    "Name": "node-read",
    "Description": "Grants read access to all node information",
    "Rules": "node_prefix \"\" { policy = \"read\"}",
    "Datacenters": [
        "dc1"
    ],
    "Hash": "OtZUUKhInTLEqTPfNSSOYbRiSBKm3c4vI2p6MxZnGWc=",
    "CreateIndex": 14,
    "ModifyIndex": 14
}

Update a Policy

This endpoint updates an existing ACL policy.

Method Path Produces
PUT /acl/policy/:id application/json

The table below shows this endpoint's support for blocking queries, consistency modes, agent caching, and required ACLs.

Blocking Queries Consistency Modes Agent Caching ACL Required
NO none none acl:write

Parameters

  • ID (string: <required>) - Specifies the ID of the policy to update. This is required in the URL path but may also be specified in the JSON body. If specified in both places then they must match exactly.

  • Name (string: <required>) - Specifies a name for the ACL policy. The name can only contain alphanumeric characters as well as - and _ and must be unique.

  • Description (string: "") - Free form human readable description of this policy.

  • Rules (string: "") - Specifies rules for this ACL policy. The format of the Rules property is detailed in the ACL Rules documentation.

  • Datacenters (array<string>) - Specifies the datacenters this policy is valid within. When no datacenters are provided the policy is valid in all datacenters including those which do not yet exist but may in the future.

  • Namespace (string: "") - (Enterprise Only) Specifies the namespace of the policy to update. If not provided in the JSON body, the value of the ns URL query parameter or in the X-Consul-Namespace header will be used. If not provided at all, the namespace will default to the default namespace. Added in Consul 1.7.0.

Sample Payload

{
  "ID": "c01a1f82-44be-41b0-a686-685fb6e0f485",
  "Name": "register-app-service",
  "Description": "Grants write permissions necessary to register the 'app' service",
  "Rules": "service \"app\" { policy = \"write\"}",
}

Sample Request

$ curl -X PUT \
    --data @payload.json \
    http://127.0.0.1:8500/v1/acl/policy/c01a1f82-44be-41b0-a686-685fb6e0f485

Sample Response

{
   "ID": "c01a1f82-44be-41b0-a686-685fb6e0f485",
   "Name": "register-app-service",
   "Description": "Grants write permissions necessary to register the 'app' service",
   "Rules": "service \"app\" { policy = \"write\"}",
   "Hash": "OtZUUKhInTLEqTPfNSSOYbRiSBKm3c4vI2p6MxZnGWc=",
   "CreateIndex": 14,
   "ModifyIndex": 28
}

Delete a Policy

This endpoint deletes an ACL policy.

Method Path Produces
DELETE /acl/policy/:id application/json

Even though the return type is application/json, the value is either true or false indicating whether the delete succeeded.

The table below shows this endpoint's support for blocking queries, consistency modes, agent caching, and required ACLs.

Blocking Queries Consistency Modes Agent Caching ACL Required
NO none none acl:write

Parameters

  • id (string: <required>) - Specifies the UUID of the ACL policy to delete. This is required and is specified as part of the URL path.

  • ns (string: "") - (Enterprise Only) Specifies the namespace of the policy to delete. This value can be specified as the ns URL query parameter or the X-Consul-Namespace header. If not provided by either, the namespace will default to the default namespace. Added in Consul 1.7.0.

Sample Request

$ curl -X DELETE \
    http://127.0.0.1:8500/v1/acl/policy/8f246b77-f3e1-ff88-5b48-8ec93abf3e05

Sample Response

true

List Policies

This endpoint lists all the ACL policies.

Method Path Produces
GET /acl/policies application/json

The table below shows this endpoint's support for blocking queries, consistency modes, agent caching, and required ACLs.

Blocking Queries Consistency Modes Agent Caching ACL Required
YES all none acl:read

Parameters

  • ns (string: "") - (Enterprise Only) Specifies the namespace to list the Policies for. This value can be specified as the ns URL query parameter or the X-Consul-Namespace header. If not provided by either, the namespace will default to the default namespace. The namespace may be specified as '*' and then results will be returned for all namespaces. Added in Consul 1.7.0.

Sample Request

$ curl -X GET http://127.0.0.1:8500/v1/acl/policies

Sample Response

-> Note - The policies rules are not included in the listing and must be retrieved by the policy reading endpoint

[
    {
        "CreateIndex": 4,
        "Datacenters": null,
        "Description": "Builtin Policy that grants unlimited access",
        "Hash": "swIQt6up+s0cV4kePfJ2aRdKCLaQyykF4Hl1Nfdeumk=",
        "ID": "00000000-0000-0000-0000-000000000001",
        "ModifyIndex": 4,
        "Name": "global-management"
    },
    {
        "CreateIndex": 14,
        "Datacenters": [
            "dc1"
        ],
        "Description": "Grants read access to all node information",
        "Hash": "OtZUUKhInTLEqTPfNSSOYbRiSBKm3c4vI2p6MxZnGWc=",
        "ID": "e359bd81-baca-903e-7e64-1ccd9fdc78f5",
        "ModifyIndex": 14,
        "Name": "node-read"
    }
]