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The Service Resource Manager (SRM) is a web service written in Python and and based on the Flask micro we framework. It implements the Service Resource manager role of the Operator Platform, defined by the [GSMA Operator Platform Group (OPG)](https://www.gsma.com/solutions-and-impact/technologies/networks/gsma_resources/gsma-operator-platform-group-september-2024-publications/)
## Description
The Service Resource Manager facilitates the North-South Bound Interface (NSBI) specification of GSMA, by acting as an interconenction link between the CAMARA-defined API exposed by the Open Exposure Gateway, and the transformation functions that expose the underlying infrastructure techology. Since a principal goal of the SUNRISE6G Operator Platform is the exposure of diverse technology stacks, SRM seamlessly handles the Application Provider's request for infrastructure access by selecting the appropriate transformation function.
<br>
| Edge Cloud Management API | Network Exposure API (QoD & Traffic Influence)|
| ------------- | ------------- |
| Application Metadata registration | Create QoD Session |
| App Metadata Removal | Remove QoD Session |
| App Metadata Retrieval | Retrieve QoD Session |
| Application Instantiation | Create TrafficeInfluence Resource |
| Application Instance Retrieval | Remove TrafficeInfluence Resource |
| Application Instance Removal | Retrieve TrafficeInfluence Resource |
## Deployment
SRM can be deployed in a Kubernetes cluster by executing the file _srm-deployment.yaml_ located in the root folder. This file will create a SRM Deployment resource and its supporting native K8s Service. The following table contains the necesssary environment variables for the Kubernetes adapter. If you have defined a custom adapter, include your variables accordingly.
| Edge Cloud Management API | Description |
| ------------- | ------------- |
| KUBERNETES_MASTER_IP | Root url of the Kubernetes apiserver (eg. 10.10.10.10)|
| KUBERNETES_MASTER_PORT | Port of the Kubernetes apiserver (eg. 16443)|
| EMP_STORAGE_URI | Root url of the management database, if deployed |
| KUBERNETES_MASTER_TOKEN | Token with which all access to K8s apiserver will authenticated |
| ARTIFACT_MANAGER_ADDRESS | Address of the Artefact Manager |
| EDGE_CLOUD_ADAPTER_NAME | The adapter SRM is going to use throughout its lifecycle. For direct access to K8s just type 'kubernetes' |
|PLATFORM_PROVIDER| The Edge Cloud infrastructure provider|
## Usage
Assuming an instance of Open Exposure Gateway (OEG) is running so that CAMARA APIs are accessible, here are a few request examples with responses, all CAMARA compatible:
### Get all registered apps
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Example response:
_[
{
"appId": "68503f9fe81dc7441fdaae94",
"appRepo": {
"imagePath": "mongo:4.4.18"
},
"componentSpec": [
{
"componentName": "mongodb",
"networkInterfaces": [
{
"port": 27017,
"protocol": "TCP"
}
]
}
],
"name": "mongodb",
"packageType": "QCOW2"
},
{
"appId": "685122aa8fff437507ec8932",
"appRepo": {
"imagePath": "nginx"
},
"componentSpec": [
{
"componentName": "nginx",
"networkInterfaces": [
{
"port": 80,
"protocol": "TCP"
},
{
"port": 443,
"protocol": "TCP"
}
]
}
],
"name": "nginx",
"packageType": "QCOW2"
}
]_
### Register app metadata
_curl -X POST http://[OEG_root_url]/apps --data '{"name": "nginx", "version": "1", "packageType": "QCOW2", "appRepo": {"imagePath": "nginx", "type": "PRIVATEREPO"}
, "componentSpec": [{"componentName": "nginx", "networkInterfaces": [{"protocol": "TCP", "port": 80, "interfaceId": "Uj6qThvzkegxa3L4b88", "visibilityType": "VISIBILITY_EXTERNAL"}, {"protoco
l": "TCP", "port": 443, "interfaceId": "Uj6qThvzkegxa3L4b88", "visibilityType": "VISIBILITY_EXTERNAL"}]}]}' -H "Content-Type: application/json"_
Example Response:
_{
"appId": "685bdc7dc2db24cc0e8927dc"
}_
### Instantiate registered app
_curl -X POST http://[OEG_root_url]/appinstances --data '{"appId": "685bdc7dc2db24cc0e8927dc", "name": "nginx-test", "appZones": [{"EdgeCloudZone":{"edgeCloudZoneI
d": "f39c5ea3-f4e3-472f-b080-2f3b81c39995", "edgeCloudZoneName": "k3d-sunriseop-agent-2", "edgeCloudProvider": "ISI"}}]}' -H "Content-Type: application/json"_
Example Response: