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HashiCorp Nomad Allocations API

Endpoints for querying allocations. An allocation declares that a set of tasks in a job should be run on a particular node.

HashiCorp Nomad Allocations API is one of 22 APIs that HashiCorp Nomad publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

This API exposes 1 JSON Schema definition.

Tagged areas include Allocations. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, and 1 JSON Schema.

This API exposes 4 operations across 4 paths, and defines 10 schemas. It is described by OpenAPI 3.1.0, at version 1.9.0.

Requests are made against a single base URL, http://localhost:4646/v1.

4 operations 4 paths 10 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.9.0
Base URL
http://localhost:4646
Authentication
API Key, HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 2

HashiCorp Nomad Allocations API declares 2 security schemes for authenticating requests. An API key is passed in the header as X-Nomad-Token (nomadToken). It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • nomadToken — ACL token passed via the X-Nomad-Token request header.
  • bearerAuth — ACL token passed via the Authorization header with Bearer scheme.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Allocations 4

Endpoints for querying allocations. An allocation declares that a set of tasks in a job should be run on a particular node.

GET
/allocations
List allocations
listAllocations 5 params → 200401500
GET
/allocation/{allocID}
Read an allocation
readAllocation 1 param → 200401404500
GET
/allocation/{allocID}/services
List allocation services
listAllocationServices 1 param → 200401404500
GET
/allocation/{allocID}/checks
List allocation health checks
listAllocationChecks 1 param → 200401404500

Schemas 10

The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are Job (23 properties), Allocation (19 properties), AllocationListStub (16 properties), ServiceRegistration (12 properties). Each schema is shown below with its type and property counts.

Job
object
A Nomad job specification defining the workload to be scheduled.
23 properties
NetworkResource
object
Network resource configuration.
8 properties
AllocationListStub
object
A stub representation of an allocation returned in list operations.
16 properties
Resources
object
Resource requirements for a task.
6 properties
Allocation
object
An allocation mapping a task group in a job to a client node.
19 properties
Service
object
A service registration for Consul or Nomad service discovery.
6 properties
Task
object
A task is the smallest unit of work in Nomad, executed within a task group.
10 properties
ServiceRegistration
object
A Nomad service registration.
12 properties
TaskGroup
object
A task group is a set of tasks that must be co-located on the same node.
10 properties
UpdateStrategy
object
Update strategy configuration for rolling deployments.
9 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nomad-allocations-api-openapi.yml Raw ↑

Other APIs HashiCorp Nomad publishes across the network.

HashiCorp Nomad Go SDK
HashiCorp Nomad Python SDK
HashiCorp Nomad Java SDK
HashiCorp Nomad ACL API
HashiCorp Nomad Agent API
HashiCorp Nomad Deployments API
HashiCorp Nomad Evaluations API
HashiCorp Nomad Jobs API
HashiCorp Nomad Namespaces API
HashiCorp Nomad Node Pools API
HashiCorp Nomad Nodes API
HashiCorp Nomad Operator API