Support Dynamic Policy Updation
User shall be able to deploy policy via PAP at run time. As currently we are supporting only Native policy for OPA, the design proposal is to encode rego file content in base 64 format and provide in the policy field.
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Tosca Definition for OPA
tosca_definitions_version: tosca_simple_yaml_1_1_0
topology_template:
policies:
- native.cell.consistency.opa:
type: onap.policies.native.opa
type_version: 1.0.0
properties:
data:
cell.consistency: eyAgIAogICJhbGxvd2VkQ2VsbElkIiA6IDQ0NTYxMTE5MzI2NTA0MDEyOSwgCiAgIm1pblBDSSI6IDEsIAogICJtYXhQQ0kiOiAzMDAwICAKIH0=
policy:
cell.consistency: 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
cell.conistency.topology : cGFja2FnZSBjZWxsLmNvbnNpc3RlbmN5LnRvcG9sb2d5CmltcG9ydCByZWdvLnYxCiAKIyBSdWxlIHRvIGNoZWNrIGNlbGwgY29uc2lzdGVuY3kKY2hlY2tfY2VsbF9jb25zaXN0ZW5jeSBpZiB7CiAgICBpbnB1dC5jZWxsICE9IGRhdGEuY2VsbGNvbnNpc3RlbmN5LmFsbG93ZWRDZWxsSWQKfQ==
name: native.cell.consistency.opa
version: 1.0.0
metadata:
policy-id: native.cell.consistency.opa
policy-version: 1.0.0 |
OPA PDP after receiving the message on KAFKA will parse the message, extract policy, perform base64 decoding and deploys the policy to OPA. OPA PDP will send a PDP_STATUS message with the status of policy deployment.
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tosca_definitions_version: tosca_simple_yaml_1_1_0
policy_types:
onap.policies.Native:
derived_from: tosca.policies.Root
description: a base policy type for all native PDP policies
version: 1.0.0
name: onap.policies.Native
onap.policies.native.opa:
derived_from: onap.policies.Native
version: 1.0.0
name: onap.policies.native.opa
description: a policy type for native opa policies
properties:
data:
type: map
type_version: 0.0.0
description: The data for Policy
required: false
metadata:
encoding: Base64
policy:
type: map
type_version: 0.0.0
description: The rego PolicySet or Policy
required: true
metadata:
encoding: Base64 |
Design Discussion