OpenShift docs are moving and will soon only be available at docs.redhat.com, the home of all Red Hat product documentation. Explore the new docs experience today.
  1. Documentation
    2. history bug_report picture_as_pdf
×

Precision Time Protocol events REST API v1 reference

Use the following Precision Time Protocol (PTP) fast event REST API v1 endpoints to subscribe the cloud-event-consumer application to PTP events posted by the cloud-event-proxy container at http://localhost:8089/api/ocloudNotifications/v1/ in the application pod.

The PTP events REST API v1 will be deprecated in a future release. When developing applications that use PTP events, use the PTP events REST API v2.

The following API endpoints are available:

PTP events REST API v1 endpoints

api/ocloudNotifications/v1/subscriptions

HTTP method

GET api/ocloudNotifications/v1/subscriptions

Description

Returns a list of subscriptions. If subscriptions exist, a 200 OK status code is returned along with the list of subscriptions.

Example API response
[
 {
  "id": "75b1ad8f-c807-4c23-acf5-56f4b7ee3826",
  "endpointUri": "http://localhost:9089/event",
  "uriLocation": "http://localhost:8089/api/ocloudNotifications/v1/subscriptions/75b1ad8f-c807-4c23-acf5-56f4b7ee3826",
  "resource": "/cluster/node/compute-1.example.com/ptp"
 }
]

HTTP method

POST api/ocloudNotifications/v1/subscriptions

Description

Creates a new subscription for the required event by passing the appropriate payload. If a subscription is successfully created, or if it already exists, a 201 Created status code is returned. You can subscribe to the following PTP events:

  • lock-state events

  • os-clock-sync-state events

  • clock-class events

  • gnss-sync-status events

  • sync-state events

Table 1. Query parameters
Parameter Type

subscription

data
Example PTP events subscription payload
{
  "uriLocation": "http://localhost:8089/api/ocloudNotifications/v1/subscriptions",
  "resource": "/cluster/node/compute-1.example.com/ptp"
}
Example PTP lock-state events subscription payload
{
"endpointUri": "http://localhost:8989/event",
"resource": "/cluster/node/{node_name}/sync/ptp-status/lock-state"
}
Example PTP os-clock-sync-state events subscription payload
{
"endpointUri": "http://localhost:8989/event",
"resource": "/cluster/node/{node_name}/sync/sync-status/os-clock-sync-state"
}
Example PTP clock-class events subscription payload
{
"endpointUri": "http://localhost:8989/event",
"resource": "/cluster/node/{node_name}/sync/ptp-status/clock-class"
}
Example PTP gnss-sync-status events subscription payload
{
"endpointUri": "http://localhost:8989/event",
"resource": "/cluster/node/{node_name}/sync/gnss-status/gnss-sync-status"
}
Example sync-state subscription payload
{
"endpointUri": "http://localhost:8989/event",
"resource": "/cluster/node/{node_name}/sync/sync-status/sync-state"
}

HTTP method

DELETE api/ocloudNotifications/v1/subscriptions

Description

Deletes all subscriptions.

Example API response
{
"status": "deleted all subscriptions"
}

api/ocloudNotifications/v1/subscriptions/{subscription_id}

HTTP method

GET api/ocloudNotifications/v1/subscriptions/{subscription_id}

Description

Returns details for the subscription with ID subscription_id.

Table 2. Global path parameters
Parameter Type

subscription_id

string
Example API response
{
  "id":"48210fb3-45be-4ce0-aa9b-41a0e58730ab",
  "endpointUri": "http://localhost:9089/event",
  "uriLocation":"http://localhost:8089/api/ocloudNotifications/v1/subscriptions/48210fb3-45be-4ce0-aa9b-41a0e58730ab",
  "resource":"/cluster/node/compute-1.example.com/ptp"
}

HTTP method

DELETE api/ocloudNotifications/v1/subscriptions/{subscription_id}

Description

Deletes the subscription with ID subscription_id.

Table 3. Global path parameters
Parameter Type

subscription_id

string
Example API response
{
"status": "OK"
}

api/ocloudNotifications/v1/health

HTTP method

GET api/ocloudNotifications/v1/health/

Description

Returns the health status for the ocloudNotifications REST API.

Example API response
OK

api/ocloudNotifications/v1/publishers

The api/ocloudNotifications/v1/publishers endpoint is only available from the cloud-event-proxy container in the PTP Operator managed pod. It is not available for consumer applications in the application pod.

HTTP method

GET api/ocloudNotifications/v1/publishers

Description

Returns a list of publisher details for the cluster node. The system generates notifications when the relevant equipment state changes.

You can use equipment synchronization status subscriptions together to deliver a detailed view of the overall synchronization health of the system.

Example API response
[
  {
    "id": "0fa415ae-a3cf-4299-876a-589438bacf75",
    "endpointUri": "http://localhost:9085/api/ocloudNotifications/v1/dummy",
    "uriLocation": "http://localhost:9085/api/ocloudNotifications/v1/publishers/0fa415ae-a3cf-4299-876a-589438bacf75",
    "resource": "/cluster/node/compute-1.example.com/sync/sync-status/os-clock-sync-state"
  },
  {
    "id": "28cd82df-8436-4f50-bbd9-7a9742828a71",
    "endpointUri": "http://localhost:9085/api/ocloudNotifications/v1/dummy",
    "uriLocation": "http://localhost:9085/api/ocloudNotifications/v1/publishers/28cd82df-8436-4f50-bbd9-7a9742828a71",
    "resource": "/cluster/node/compute-1.example.com/sync/ptp-status/clock-class"
  },
  {
    "id": "44aa480d-7347-48b0-a5b0-e0af01fa9677",
    "endpointUri": "http://localhost:9085/api/ocloudNotifications/v1/dummy",
    "uriLocation": "http://localhost:9085/api/ocloudNotifications/v1/publishers/44aa480d-7347-48b0-a5b0-e0af01fa9677",
    "resource": "/cluster/node/compute-1.example.com/sync/ptp-status/lock-state"
  },
  {
    "id": "778da345d-4567-67b0-a43f0-rty885a456",
    "endpointUri": "http://localhost:9085/api/ocloudNotifications/v1/dummy",
    "uriLocation": "http://localhost:9085/api/ocloudNotifications/v1/publishers/778da345d-4567-67b0-a43f0-rty885a456",
    "resource": "/cluster/node/compute-1.example.com/sync/gnss-status/gnss-sync-status"
  }
]

api/ocloudNotifications/v1/{resource_address}/CurrentState

HTTP method

GET api/ocloudNotifications/v1/cluster/node/{node_name}/sync/ptp-status/lock-state/CurrentState

GET api/ocloudNotifications/v1/cluster/node/{node_name}/sync/sync-status/os-clock-sync-state/CurrentState

GET api/ocloudNotifications/v1/cluster/node/{node_name}/sync/ptp-status/clock-class/CurrentState

GET api/ocloudNotifications/v1/cluster/node/{node_name}/sync/sync-status/sync-state/CurrentState

GET api/ocloudNotifications/v1/cluster/node/{node_name}/sync/gnss-status/gnss-sync-state/CurrentState

Description

Returns the current state of the os-clock-sync-state, clock-class, lock-state, gnss-sync-status, or sync-state events for the cluster node.

  • os-clock-sync-state notifications describe the host operating system clock synchronization state. Can be in LOCKED or FREERUN state.

  • clock-class notifications describe the current state of the PTP clock class.

  • lock-state notifications describe the current status of the PTP equipment lock state. Can be in LOCKED, HOLDOVER or FREERUN state.

  • sync-state notifications describe the current status of the least synchronized of the ptp-status/lock-state and sync-status/os-clock-sync-state endpoints.

  • gnss-sync-status notifications describe the GNSS clock synchronization state.

Table 4. Global path parameters
Parameter Type

resource_address

string
Example lock-state API response
{
  "id": "c1ac3aa5-1195-4786-84f8-da0ea4462921",
  "type": "event.sync.ptp-status.ptp-state-change",
  "source": "/cluster/node/compute-1.example.com/sync/ptp-status/lock-state",
  "dataContentType": "application/json",
  "time": "2023-01-10T02:41:57.094981478Z",
  "data": {
    "version": "1.0",
    "values": [
      {
        "resource": "/cluster/node/compute-1.example.com/ens5fx/master",
        "dataType": "notification",
        "valueType": "enumeration",
        "value": "LOCKED"
      },
      {
        "resource": "/cluster/node/compute-1.example.com/ens5fx/master",
        "dataType": "metric",
        "valueType": "decimal64.3",
        "value": "29"
      }
    ]
  }
}
Example os-clock-sync-state API response
{
  "specversion": "0.3",
  "id": "4f51fe99-feaa-4e66-9112-66c5c9b9afcb",
  "source": "/cluster/node/compute-1.example.com/sync/sync-status/os-clock-sync-state",
  "type": "event.sync.sync-status.os-clock-sync-state-change",
  "subject": "/cluster/node/compute-1.example.com/sync/sync-status/os-clock-sync-state",
  "datacontenttype": "application/json",
  "time": "2022-11-29T17:44:22.202Z",
  "data": {
    "version": "1.0",
    "values": [
      {
        "resource": "/cluster/node/compute-1.example.com/CLOCK_REALTIME",
        "dataType": "notification",
        "valueType": "enumeration",
        "value": "LOCKED"
      },
      {
        "resource": "/cluster/node/compute-1.example.com/CLOCK_REALTIME",
        "dataType": "metric",
        "valueType": "decimal64.3",
        "value": "27"
      }
    ]
  }
}
Example clock-class API response
{
  "id": "064c9e67-5ad4-4afb-98ff-189c6aa9c205",
  "type": "event.sync.ptp-status.ptp-clock-class-change",
  "source": "/cluster/node/compute-1.example.com/sync/ptp-status/clock-class",
  "dataContentType": "application/json",
  "time": "2023-01-10T02:41:56.785673989Z",
  "data": {
    "version": "1.0",
    "values": [
      {
        "resource": "/cluster/node/compute-1.example.com/ens5fx/master",
        "dataType": "metric",
        "valueType": "decimal64.3",
        "value": "165"
      }
    ]
  }
}
Example sync-state API response
{
    "specversion": "0.3",
    "id": "8c9d6ecb-ae9f-4106-82c4-0a778a79838d",
    "source": "/sync/sync-status/sync-state",
    "type": "event.sync.sync-status.synchronization-state-change",
    "subject": "/cluster/node/compute-1.example.com/sync/sync-status/sync-state",
    "datacontenttype": "application/json",
    "time": "2024-08-28T14:50:57.327585316Z",
    "data":
    {
        "version": "1.0",
        "values": [
        {
            "ResourceAddress": "/cluster/node/compute-1.example.com/sync/sync-status/sync-state",
            "data_type": "notification",
            "value_type": "enumeration",
            "value": "LOCKED"
        }]
    }
}
Example gnss-sync-status API response
{
  "id": "435e1f2a-6854-4555-8520-767325c087d7",
  "type": "event.sync.gnss-status.gnss-state-change",
  "source": "/cluster/node/compute-1.example.com/sync/gnss-status/gnss-sync-status",
  "dataContentType": "application/json",
  "time": "2023-09-27T19:35:33.42347206Z",
  "data": {
    "version": "1.0",
    "values": [
      {
        "resource": "/cluster/node/compute-1.example.com/ens2fx/master",
        "dataType": "notification",
        "valueType": "enumeration",
        "value": "LOCKED"
      },
      {
        "resource": "/cluster/node/compute-1.example.com/ens2fx/master",
        "dataType": "metric",
        "valueType": "decimal64.3",
        "value": "5"
      }
    ]
  }
}