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OPA-PDP implements a kafka listener, Publisher to receiving and sending messages to PAP
Once OPA-PDP is up it will send “Registration”( PDP_STATUS) message to PAP
Some of the information included in the message are:
pdpType the type of the PDP opa .
pdpGroup to which the PDP should belong to opaGroup defaultGroup
state the initial state of the PDP which is PASSIVE.
healthy whether the PDP is “HEALTHY” or not.
name a name that is unique to the PDP instance for e.g. “opa-f849384c-dd78-4016-a7b5-1c660fb6ee0e”
Code Block Sample Registration Message { "messageName": "PDP_STATUS", "pdpType": "opa", "state": "PASSIVE", "healthy": "HEALTHY", "description": "Pdp Status Registration Message", "response": null, "policies": null, "name": "opa-949018d3-cc9b-429b-96ae-46ca9c314e42", "requestId": "9fed8880-d023-4004-b6bf-647efd10a7df", "pdpGroup": "opaGroupdefaultGroup", "pdpSubgroup": null, "timestampMs": "1731335546889" }
On receiving the registration message from a PDP, PAP checks and assigns it to a subgroup under the group. PAP sends PDP_UPDATE message. PAP also sends the pdpHeartbeatIntervalMs which is the time interval in which PDPs should send heartbeats to PAP. Currently (In first phase) OPA-PDP handles only the pdpHeartbeatIntervalMs and starts a timer for sending STATUS messages periodically. OPA-PDP sends PDP_STATUS response to PDP_UPDATE message.
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| Code Block |
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{
"messageName": "PDP_STATUS",
"pdpType": "opa",
"state": "PASSIVE",
"healthy": "HEALTHY",
"description": "Pdp Status Response Message For Pdp Update",
"response": {
"responseTo": "06f6d05f-6045-48d9-bcd8-40364fb695ae",
"responseStatus": "SUCCESS",
"responseMessage": "PDP Update was Successful"
},
"policies": null,
"name": "opa-949018d3-cc9b-429b-96ae-46ca9c314e42",
"requestId": "e6a0607f-5fc8-4d62-afca-3cb984d827a3",
"pdpGroup": "opaGroupdefaultGroup",
"pdpSubgroup": "opa",
"timestampMs": "1731335550030"
} |
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| Code Block |
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{
"messageName": "PDP_STATUS",
"pdpType": "opa",
"state": "ACTIVE",
"healthy": "HEALTHY",
"description": "Pdp Status Response Message to Pdp State Change",
"response": {
"responseTo": "3edbb47c-b015-4fd9-9572-26cde97cc23c",
"responseStatus": "SUCCESS",
"responseMessage": "PDP State Changed From PASSIVE TO Active"
},
"policies": null,
"name": "opa-949018d3-cc9b-429b-96ae-46ca9c314e42",
"requestId": "02b186a6-485d-4392-90fa-d4cac34be97a",
"pdpGroup": "opaGroupdefaultGroup",
"pdpSubgroup": "opa",
"timestampMs": "1731335550069"
} |
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