open-nomad/website/content/api-docs/sentinel-policies.mdx
2021-01-05 19:02:39 -05:00

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---
layout: api
page_title: Sentinel Policies - HTTP API
sidebar_title: Sentinel Policies
description: >-
The /sentinel/policy/ endpoints are used to configure and manage Sentinel
policies.
---
# Sentinel Policies HTTP API
The `/sentinel/policies` and `/sentinel/policy/` endpoints are used to manage Sentinel policies.
For more details about Sentinel policies, please see the [Sentinel Policy Guide](https://learn.hashicorp.com/tutorials/nomad/sentinel).
Sentinel endpoints are only available when ACLs are enabled. For more details about ACLs, please see the [ACL Guide](https://learn.hashicorp.com/collections/nomad/access-control).
<EnterpriseAlert>
This API endpoint and functionality only exists in
Nomad Enterprise. This is not present in the open source version of Nomad.
</EnterpriseAlert>
## List Policies
This endpoint lists all Sentinel policies. This lists the policies that have been replicated
to the region, and may lag behind the authoritative region.
| Method | Path | Produces |
| ------ | -------------------- | ------------------ |
| `GET` | `/sentinel/policies` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api-docs#blocking-queries), [consistency modes](/api-docs#consistency-modes) and
[required ACLs](/api-docs#acls).
| Blocking Queries | Consistency Modes | ACL Required |
| ---------------- | ----------------- | ------------ |
| `YES` | `all` | `management` |
### Sample Request
```shell-session
$ curl \
https://localhost:4646/v1/sentinel/policies
```
### Sample Response
```json
[
{
"Name": "foo",
"Description": "test policy",
"Scope": "submit-job",
"EnforcementLevel": "advisory",
"Hash": "CIs8aNX5OfFvo4D7ihWcQSexEJpHp+Za+dHSncVx5+8=",
"CreateIndex": 8,
"ModifyIndex": 8
}
]
```
## Create or Update Policy
This endpoint creates or updates an Sentinel Policy. This request is always forwarded to the
authoritative region.
| Method | Path | Produces |
| ------ | ------------------------------- | -------------- |
| `POST` | `/sentinel/policy/:policy_name` | `(empty body)` |
The table below shows this endpoint's support for
[blocking queries](/api-docs#blocking-queries) and
[required ACLs](/api-docs#acls).
| Blocking Queries | ACL Required |
| ---------------- | ------------ |
| `NO` | `management` |
### Parameters
- `Name` `(string: <required>)` - Specifies the name of the policy.
Creates the policy if the name does not exist, otherwise updates the existing policy.
- `Description` `(string: <optional>)` - Specifies a human readable description.
- `Scope` `(string: <required>)` - Specifies the scope of when this policy applies. Only `submit-job` is currently supported.
- `EnforcementLevel` `(string: <required>)` - Specifies the enforcement level of the policy. Can be `advisory` which warns on failure,
`hard-mandatory` which prevents an operation on failure, and `soft-mandatory` which is like `hard-mandatory` but can be overridden.
- `Policy` `(string: <required>)` - Specifies the Sentinel policy itself.
### Sample Payload
```json
{
"Name": "my-policy",
"Description": "This is a great policy",
"Scope": "submit-job",
"EnforcementLevel": "advisory",
"Policy": "main = rule { true }"
}
```
### Sample Request
```shell-session
$ curl \
--request POST \
--data @payload.json \
https://localhost:4646/v1/sentinel/policy/my-policy
```
## Read Policy
This endpoint reads a Sentinel policy with the given name. This queries the policy that have been
replicated to the region, and may lag behind the authoritative region.
| Method | Path | Produces |
| ------ | ------------------------------- | ------------------ |
| `GET` | `/sentinel/policy/:policy_name` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api-docs#blocking-queries), [consistency modes](/api-docs#consistency-modes) and
[required ACLs](/api-docs#acls).
| Blocking Queries | Consistency Modes | ACL Required |
| ---------------- | ----------------- | ------------ |
| `YES` | `all` | `management` |
### Sample Request
```shell-session
$ curl \
https://localhost:4646/v1/sentinel/policy/foo
```
### Sample Response
```json
{
"Name": "foo",
"Description": "test policy",
"Scope": "submit-job",
"EnforcementLevel": "advisory",
"Policy": "main = rule { true }\n",
"Hash": "CIs8aNX5OfFvo4D7ihWcQSexEJpHp+Za+dHSncVx5+8=",
"CreateIndex": 8,
"ModifyIndex": 8
}
```
## Delete Policy
This endpoint deletes the named Sentinel policy. This request is always forwarded to the
authoritative region.
| Method | Path | Produces |
| -------- | ------------------------------- | -------------- |
| `DELETE` | `/sentinel/policy/:policy_name` | `(empty body)` |
The table below shows this endpoint's support for
[blocking queries](/api-docs#blocking-queries) and
[required ACLs](/api-docs#acls).
| Blocking Queries | ACL Required |
| ---------------- | ------------ |
| `NO` | `management` |
### Parameters
- `policy_name` `(string: <required>)` - Specifies the policy name to delete.
### Sample Request
```shell-session
$ curl \
--request DELETE \
https://localhost:4646/v1/sentinel/policy/foo
```