open-nomad/website/source/docs/http/node.html.md

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http	HTTP API: /v1/node	docs-http-node-	The '/1/node-' endpoint is used to query a specific client node.

/v1/node

The node endpoint is used to query the a specific client node. By default, the agent's local region is used; another region can be specified using the ?region= query parameter.

GET

Description

Query the status of a client node registered with Nomad.

Method

GET

URL

`/v1/node/`

Parameters

None

Returns

```javascript
{
"ID": "c9972143-861d-46e6-df73-1d8287bc3e66",
"Datacenter": "dc1",
"Name": "Armons-MacBook-Air.local",
"Attributes": {
    "arch": "amd64",
    "cpu.frequency": "1300.000000",
    "cpu.modelname": "Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz",
    "cpu.numcores": "2",
    "cpu.totalcompute": "2600.000000",
    "driver.exec": "1",
    "driver.java": "1",
    "driver.java.runtime": "Java(TM) SE Runtime Environment (build 1.8.0_05-b13)",
    "driver.java.version": "1.8.0_05",
    "driver.java.vm": "Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)",
    "hostname": "Armons-MacBook-Air.local",
    "kernel.name": "darwin",
    "kernel.version": "14.4.0",
    "memory.totalbytes": "8589934592",
    "os.name": "darwin",
    "os.version": "14.4.0",
    "storage.bytesfree": "35888713728",
    "storage.bytestotal": "249821659136",
    "storage.volume": "/dev/disk1"
},
"Resources": {
    "CPU": 2600,
    "MemoryMB": 8192,
    "DiskMB": 34226,
    "IOPS": 0,
    "Networks": null
},
"Reserved": null,
"Links": {},
"Meta": {},
"NodeClass": "",
"Drain": false,
"Status": "ready",
"StatusDescription": "",
"CreateIndex": 3,
"ModifyIndex": 4
}
```

/v1/node/<ID>/allocations

GET

Description

Query the allocations belonging to a single node.

Method

GET

URL

`/v1/node//allocations`

Parameters

None

Returns

```javascript
[
{
    "ID": "3575ba9d-7a12-0c96-7b28-add168c67984",
    "EvalID": "151accaa-1ac6-90fe-d427-313e70ccbb88",
    "Name": "binstore-storagelocker.binsl[0]",
    "NodeID": "a703c3ca-5ff8-11e5-9213-970ee8879d1b",
    "JobID": "binstore-storagelocker",
    "TaskGroup": "binsl",
    "DesiredStatus": "run",
    "DesiredDescription": "",
    "ClientStatus": "running",
    "ClientDescription": "",
    "CreateIndex": 16,
    "ModifyIndex": 16
},
...
]
```

/v1/node/<ID>/evaluate

PUT / POST

Description

Creates a new evaluation for the given node. This can be used to force run the scheduling logic if necessary.

Method

PUT or POST

URL

`/v1/node//evaluate`

Parameters

None

Returns

```javascript
{
"EvalIDs": ["d092fdc0-e1fd-2536-67d8-43af8ca798ac"],
"EvalCreateIndex": 35,
"NodeModifyIndex": 34,
}
```

/v1/node/<ID>/drain

PUT / POST

Description

Toggle the drain mode of the node. When enabled, no further allocations will be assigned and existing allocations will be migrated.

Method

PUT or POSt

URL

`/v1/node//drain`

Parameters

• enable required Boolean value provided as a query parameter to either set enabled to true or false.

Returns

```javascript
{
"EvalID": "d092fdc0-e1fd-2536-67d8-43af8ca798ac",
"EvalCreateIndex": 35,
"NodeModifyIndex": 34,
}
```