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Distributed Edge Cloud Infrastructure Object Hierarchy (Stretch Goal)

Value:

  • Fine grained resource management & analytics for Distributed Edge CloudsClouds 

References: 

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  • For the 5G Service/VNF placement example in Note 3
    • SO passes the Physical DC End Point to Multi-Cloud as a opaque data, besides the Cloud Region

Cloud-agnostic Placement/Networking & Homing Policies (Phase 1 - Casablanca MVP, Phase 2 - Stretch Goal)

End-to-end use case Applicability:

  • All (especially the data plane VNFs with fine-grained VNF placement and high performance networking requirements)

Value:

  • Improve "workload deployability" by avoiding exposure of "cloud specific" capabilities to several ONAP components and addressing "separation of concerns" 
  • Support capacity check (besides capability check) for HPA resources 
  • Applicable to all workloads - VM-based or Container-based

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(warning) The sequence diagram below expands "Multi-Cloud/VNFM Deploy Apps" in Edge Scoping Sequence Diagram

Cloud Agnostic Intent (Policy) Execution Workflow:

Gliffy Diagram
size1200
nameCloud Agnostic Intent Execution Workflow
pagePin29

Cloud Agnostic Policy Design Considerations:

  • Organize Policy per Cloud Region or group of Cloud Regions 
    • Different cloud regions have different cloud control plane instances and naturally parallelizeable from OOF and MC perspective
    • One or more of the cloud regions may not respond in the 

Info
titleCloud Policy Example (in progress)

{

"service""cloudPolicy",
"policyName""oofMulti-cloudCasablanca.cloudPolicy_vCPE_VNF",
"description""Cloud Policy for vCPE VNF",
"templateVersion""0.0.1",
 "version""oofMulti-cloudCasablanca",
 "priority""3",
 "riskType""test",
 "riskLevel""2",
"guard""False",
"content": {

"cloudRegion": {

"id": "1",

"cloudVendor": "Microsoft Azure",

"intent": {

"name": "Infrastructure HA for VNF", //realization thru Azure Fault Domain or Availability set

"cost": { "value" : "0", "operatorSpecified" : "FALSE" } //Cost is derived based on APIs since it is a public cloud

},

"intent": {

"name": "Infrastructure Resource Isolation for VNF", //realization through dedicating compute & memory

"cost": { "value" : "0", "operatorSpecified" : "FALSE" } //Cost is derived based on APIs since it is a public cloud

},

"intent": {

"name": "High Performance DPDK-based Overlay Networking",

"cost": { "value" : "0", "operatorSpecified" : "FALSE" } //Cost is derived based on APIs since it is a public cloud

}

},

"cloudRegion": {

"id": "2",

"cloudVendor": "VMware VIO",

"intent": {

"name": "Infrastructure HA for VNF", // realization through OpenStack Policy-group and Anti-affinity Policy

"cost": { "value" : "10", "operatorSpecified" : "TRUE" } //cost is specified by operator since it is a private cloud

},

"intent": {

"name": "Infrastructure Resource Isolation for VNF", // realization possible without dedicating CPU and Memory, refer to section on "Cloud Resource Partitioning for Differentiated QoS" on how this can help in offering tiered services

"cost": { "value" : "9", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

"minGuarantee": {

"capability": "TRUE",

"overSubscriptionPercent": {"value": "10"},

}

},

"intent": {

"name": "High Performance DPDK-based Overlay Networking",

"cost": { "value" : "10", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

}

"cloudCapacityUtilizaitonAttributes" : {

"current_allocated_capacity" : { {"cpu", "memory", "network"}: {"cloud": {"weight": "0.85", "threshold": "0.9"}, "tenant (resource slice)": {"weight": "0.85", "threshold": "0.9"
}, "host aggregate (resource cluster)": {"weight": "0.85", "threshold": "0.9"} } },

"average_utilization" : { {"cpu", "memory", "network"}: {"cloud": {"weight": "0.13"}, "tenant (resource slice)": {"weight": "0.13"}, "host aggregate (resource cluster)": {"weight": "0.13"} }, "time-window": "24", "unit": "hours" },

"peak_utilization" : { {"cpu", "memory", "network"}: {"cloud": {"weight": "0.02"}, "tenant (resource slice)": {"weight": "0.02"}, "host aggregate (resource cluster)": {"weight": "0.02"} }, "time-window": "24", "unit": "hours" }

}

//current_allocated_capacity, average_utilization and peak_utilization are normalized to 1

//For a given object such as tenant_cpu, sum of weights across all attributes (current_allocated_capacity, average_utilization & peak_utilization) must be 1

//E.g. net_value = cloud_cpu_current_allocated_capacity*0.85 + cloud_cpu_average_utilization*0.13 + cloud_cpu_peak_utilization*.02 + ...

//For a given object such as cloud_cpu, if the current_allocated_capacity "threshold" exceeds the specified value, return "high net value"

//For Casablanca (R3), the default policy is adapted to minimum viable attributes and objects across all supported clouds OpenStack-based (Open source OpenStack, VMware VIO, Wind River Titanium), Public (Microsoft Azure), Open source K8S (TBD)

},

"cloudRegion": {

"id": "3",

"cloudVendor": "Wind River Titanium",

"intent": {

"name": "Infrastructure HA for VNF", // realization through OpenStack Policy-group and Anti-affinity Policy

"cost": { "value" : "10", "operatorSpecified" : "TRUE" } //cost is specified by operator since it is a private cloud

},

"intent": {

"name": "Infrastructure Resource Isolation for VNF", //realization through dedicating compute & memory

"cost": { "value" : "10", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

},

"intent": {

"name": "High Performance DPDK-based Overlay Networking",

"cost": { "value" : "9", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

}

},

"cloudRegion": {

"id": "4",

"cloudVendor": "K8S (Open Source) for Containers",

"intent": {

"name": "Infrastructure HA for VNF", // realization through nodeSelector – https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity

"cost": { "value" : "10", "operatorSpecified" : "TRUE" } //cost is specified by operator since it is a private cloud

},

"intent": {

"name": "Infrastructure Resource Isolation for VNF", // realization possible without dedicating CPU and Memory, refer to section on "Cloud Resource Partitioning for Differentiated QoS" on how this can help in offering tiered services

"cost": { "value" : "9", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

"minGuarantee": {

"capability": "TRUE", //realization through burstable QoS class – https://kubernetes.io/docs/tasks/configure-pod-container/quality-service-pod/

"overSubscriptionPercent": {"value": "10"},

}

},

"intent": {

"name": "High Performance DPDK-based Overlay Networking", //realization through one of the host-based networking options such as vhostuser, VMware NSX-T etc. – https://github.com/containernetworking/cni

"cost": { "value" : "10", "operatorSpecified" : "TRUE" }, //cost is specified by operator since it is a private cloud

}

},

"resources": ["vGMuxInfra", "vG"],

"applicableResources": "any",
"identity": "distance-vGMuxInfra",
"policyScope": ["vCPE", "US", "INTERNATIONAL", "ip", "vGMuxInfra"],
"policyType": "haPolicy"

}


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