Background

The DCM is one of the components of ONAP4K8s. It will run as a microservice exposing Rest APIs, external components will use REST to communicate with the DCM while other microservices will use gRPC. The DCM will perform the following functions;

User creation (currently one user per logical cloud)
Namespace creation (currently one namespace per logical cloud)
Generate intermediate CA key for each edge which is signed by a root or intermediate key
Logical Cloud creation - Create Istio control planes for the logical clouds.

Different components (microservice) work together with the DCM to make the above possible, the components are;

Main DCM Microservice (contains the service mesh Module(formally Logical Cloud Controller), User Module and Namespace Module, Quota Module(Limits resources available to each logical cloud))
CA Key Distribution Controller ( Generate intermediate CA key for each edge which is signed by an root or intermediate key)

Design Overview

Fig 1: DCM Components

Sample DCM DB tables

Logical Cloud	User	Namespace	Cluster
logical-cloud-1	user1	ns1	c1

User	Permissions	user-key	user-csr
user1	permission-1	ajjfoiogwf	ekfapoekp

DCM Sequence

Client creates logical cloud using logical cloud creation API
Associates logical cloud with clusters (this API is called multiple times)
Add quota for logical cloud
The client talks to the core module and at each step the core module calls the specific modules which then take the information and store it in the required section in the database. For examle, the namespace module will store the namespace for the logical cloud in the DB.
Apply API is called
Service mesh module gets CA bundle from CA controller
Service mesh module gets names of logical cloud and creates a new namespace name using name of logical cloud
Service mesh module creates helm template/istioctl manifest and stores it in the database with the namespace to use
Service mesh module creates k8s coredns file for coredns of control plane for each cluster i.e, there is a coredns deployment file, configmap, service account etc for each cluster per control plane (logical cloud)
DCM informs the resource synchronizer to start the logical cloud creation via gRPC and the resource synchronizer starts reading from the DB
The DCM gets status from the resource synchronizer via gRPC

DCM Source Code Directory Structure

dcm
├── core
│ └── main.go
├── namespace-controller
│ └── namespace.go
├── quota-controller
│ └── quota.go
├── service-mesh-controller
│ └── service-mesh.go
└── user-controller
└── user.go

GO API

func createNamespace(logicalCloudName Namespace string)  error  //Stores the namespace for the logical cloud in the database

func createUser(user logicalCloudName string permissions []map[string]map[string][]string) error //Stores the user details for the logical cloud in the database

func createKVpair(name description string userData map[string]string kvPair []map[string]string) error  //Stores a new key value pair in the database

func addCluster(cluster logicalCloudName string) error //Associates a new cluster with the logical cloud

func addUserPermissions(user permissionName string apiGroups resources verbs []string) error

func applyConfig(logicalCloudName string) error //Talks to the Resource Synchronizer to start the actual creation of all the resources for the logical cloud

func getKVPair(name string) ([]map[string]string error)

func getClusterConfig(cluster logicalCloudName string) ([]byte, error) //Returns Kubeconfig for the cluster in JSON format

func getNamespace(logicalCloudName string) (string error)

func getUser(logicalCloudName string) (string error)

func getClusters(logicalCloudName string) ([]string error)

func getUserPermissions(user string) (([]map[string]map[string][]string)  error) //Sample output [{"permission-1": {"apiGroups": ["stable.example.com"], "resources" : ["secrets", "pods"], "verbs" : ["get", "watch", "list", "create"] }}, 
                                                                                              {"permission-2": {"apiGroups": [""], "resources" : ["configmaps"], "verbs" : ["*"] }}]

Service Mesh API

Service Mesh API

func create_mesh () {

    func get_lc_clusters() (map[string]string) //Returns a map containing a mapping of cluster names to load balancer ip address
	func create_mesh_namespace(logical-cloud-name, []clusters)

	func create_ca_secrets(logical-cloud-name){
		func get_ca_certs(url)
	}

	func install_helm([] clusters) (or install istioctl)
	func create_helm_chart() (or istioctl manifest)
}

REST API

1. Create Logical Cloud

Logical Cloud Creation API

URL: /v2/projects/<project-name>/logical-clouds
POST BODY:
{
 "metadata" : {
 	"name": "lc-1",   //unique name for the record
    "description": "logical cloud for walmart finance department",  //description for the logical cloud 
    "userData1":"<user data>",
    "userData2":"<user data>"
   },
 "spec" : {
	"namespace" : "ns-1", // one namespace per logical cloud
 	"user" : {
    "user-name" : "user-1",  //name of user for this cloud  (username and logical cloud name would be used as subject for the user key)
    "type" : "certificate",   //type of authentication credentials used by user (certificate, Token, UNPW)
    "user-permissions" : [
       { "permission-name" : "permission-1",
         "apiGroups" : ["stable.example.com"],
         "resources" : ["secrets", "pods"],
         "verbs" : ["get", "watch", "list", "create"]
       },
       { "permission-name" : "permission-2",
         "apiGroups" : [""],
         "resources" : ["configmaps"],
         "verbs" : ["*"]
       }
    ]
  }
 }
}

Return Status: 201
Return Body:
{
  "name" : "logical-cloud-1",
  "logical-cloud-name" : "logical-cloud-1",
  "namespace" : "ns-1",
  "user-name" : "user-1"
}

Important points to Note

cluster CA and cluster CRT will be gotten when a cluster is registered and this will be used to create the user crt after the user csr and user key are created

Kubeconfig will be put in the mongoDB

2. Get Logical Cloud kubeconfig

Get Logical cloud kubeconfig

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/kubeconfig?cluster-reference=cluster-1
GET
Return Status: 201
Return Body :
  {
    "apiVersion": "v1",
    "clusters": [
        {
            "cluster": {
                "certificate-authority-data": "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",
                "server": "https://1.2.3.4:6443"
            },
            "name": "kubernetes"
        }
    ],
    "contexts": [
        {
            "context": {
                "cluster": "cluster-1",
                "user": "user-1"
            },
            "name": "user-1-context"
        }
    ],
    "current-context": "user-1-context",
    "kind": "Config",
    "users": [
        {
            "name": "user-1",
            "user": {
                "client-certificate-data" : "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",
				"client-key-data" : "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"
            }
        }
    ]
}

3. PUT (Change logical cloud contents)

PUT Logical Cloud

URL: /v2/projects/<project-name>/logical-clouds/<name>
PUT BODY:
{
 "metadata" : {
    "description": "logical cloud for walmart finance department",  //description for the logical cloud 
    "userData1":"<user data>",
    "userData2":"<user data>"
   },
 "spec" : {
	"namespace" : "ns-1", // one namespace per logical cloud
 	"user" : {
    "user-name" : "user-1",  //name of user for this cloud  (username and logical cloud name would be used as subject for the user key)
    "type" : "certificate",   //type of authentication credentials used by user (certificate, Token, UNPW)
    "user-permissions" : [
       { "permission-name" : "permission-1",
         "apiGroups" : ["stable.example.com"],
         "resources" : ["secrets", "pods"],
         "verbs" : ["get", "watch", "list", "create"]
       },
       { "permission-name" : "permission-2",
         "apiGroups" : [""],
         "resources" : ["configmaps"],
         "verbs" : ["*"]
       }
    ]
  }
 }
}

Return Status: 200 (OK)
Return Body:
{
  "name" : "logical-cloud-1",
  "logical-cloud-name" : "logical-cloud-1",
  "namespace" : "ns-1",
  "user" : "user-1"
}

4. POST (Associate cluster with logical cloud )

Associate logical cloud with cluster

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/cluster-references/
POST BODY:
{

 "cluster-reference": "cluster-name", //name of the cluster
 "loadbalancer-ip" : "0.0.0.0"  //IP address of the istio loadbalancer for the logical cloud control plane in the cluster

 
}
Return Status: 200 (OK)
Return Body:
{
  "name" : "cluster-reference-1",
  "cluster-name" : "cluster-1"
}

5. GET Logical Cloud

GET Logical Cloud

GET
URL: /v2/projects/<project-name>/logical-clouds/<name>
RESPONSE BODY:
{
 "metadata" : {
 	"name": "lc-1",   //unique name for the record
    "description": "logical cloud for walmart finance department",  //description for the logical cloud 
    "userData1":"<user data>",
    "userData2":"<user data>"
   },
 "spec" : {
	"namespace" : "ns-1", // one namespace per logical cloud
 	"user" : {
    "user-name" : "user-1",  //name of user for this cloud  (username and logical cloud name would be used as subject for the user key)
    "type" : "certificate",   //type of authentication credentials used by user (certificate, Token, UNPW)
    "user-permissions" : [
       { "permission-name" : "permission-1",
         "apiGroups" : ["stable.example.com"],
         "resources" : ["secrets", "pods"],
         "verbs" : ["get", "watch", "list", "create"]
       },
       { "permission-name" : "permission-2",
         "apiGroups" : [""],
         "resources" : ["configmaps"],
         "verbs" : ["*"]
       }
    ],
    "clusters" : ["cluster-1", "cluster-2", "cluster-3]
  }
 }
}

6. DELETE Logical Cloud

DELETE Logical Cloud

DELETE
URL: /v2/projects/<project-name>/logical-clouds/<name>
RESPONSE STATUS: 204

7. Add user permissions

Add User permissions

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/user-permissions
POST BODY:
       
{ "name" : "permission-3",
  "apiGroups" : [""],
  "resources" : ["jobs"],
  "verbs" : ["list"]
}
       
Return Status: 200 (OK)
Return Body:
{ "name" : "permission-3",
  "apiGroups" : [""],
  "resources" : ["jobs"],
  "verbs" : ["list"]
}

8. GET User Permissions

Get User permissions

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/user-permissions
GET:
Return Body:      
{"permissions" : [
       { "name" : "permission-1",
         "apiGroups" : ["stable.example.com"],
         "resources" : ["secrets", "pods"],
         "verbs" : ["get", "watch", "list", "create"]
       },
       { "name" : "permission-2",
         "apiGroups" : [""],
         "resources" : ["configmaps"],
         "verbs" : ["*"]
       },
       { "name" : "permission-3",
         "apiGroups" : [""],
         "resources" : ["jobs"],
         "verbs" : ["list"]
       }
    ]
}

9. PUT (Update User permissions)

Update User permissions

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/user-permissions/permission-3
POST BODY:
       
{
  "apiGroups" : [""],
  "resources" : ["pvc"],
  "verbs" : ["list"]
}
       
Return Status: 200 (OK)
Return Body:
{ "name" : "permission-3",
  "apiGroups" : [""],
  "resources" : ["pvc"],
  "verbs" : ["list"]
}

10. Delete Permissions

Delete User permissions

DELETE
URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/user-permissions/<permission-name>
RETURN STATUS: 204

11. Create logical cloud Quota ( quota will be applied to each cluster in the logical cloud)

This allows resources to be tuned for the logical cloud

Create Logical cloud quota

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/cluster-quotas
POST BODY:
{
    "metadata" : {
      "name" : "quota-1",
      "description": "desc"
     },
    "spec" : {
      "limits.cpu": "400",
      "limits.memory": "1000Gi",
      "requests.cpu": "300",
      "requests.memory": "900Gi",
      "requests.storage" : "500Gi",
      "requests.ephemeral-storage": "",
      "limits.ephemeral-storage": "",
      "persistentvolumeclaims" : " ", 
      "pods": "500", 
      "configmaps" : "",
      "replicationcontrollers": "",
      "resourcequotas" : "",
      "services": "",
      "services.loadbalancers" : "",
      "services.nodeports" : "",
      "secrets" : "",
      "count/replicationcontrollers" : "",
      "count/deployments.apps" : "",
      "count/replicasets.apps" : "",
      "count/statefulsets.apps" : "",
      "count/jobs.batch" : "",
      "count/cronjobs.batch" : "",
      "count/deployments.extensions" : ""
    }    
}

RETURN STATUS: 201

12. GET logical cloud Quota

Get Logical cloud quota

GET
URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/cluster-quotas/<quota-name>
RETURN BODY:
{
    "metadata" : {
      "name" : "quota-1",
      "description": "desc"
     },
    "spec" : {
      "cpu": "400",
      "memory": "1000Gi",
      "pods": "500"
    }    
}

13. Update Logical Cloud Quota

Update Logical cloud quota

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/cluster-quotas/<quota-name>
PUT BODY:
{
    "metadata" : {
      "description": "desc"
     },
    "spec" : {
      "cpu": "400",
      "memory": "1000Gi",
      "pods": "500"
    }    
}

RETURN STATUS: 201

14. POST (Apply all the created configuration, this creates the K8s resources)

Apply configuration

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/apply

Return Status: 200 (OK)
Return Body:
{
 "logical-cloud-name" : "logical-cloud-1",
 "namespace" : "ns-1", // one namespace per logical cloud
 "description": "logical cloud for walmart finance department",  //description for the logical cloud
 "user" : "user-1",
 "clusters" : ["cluster1", "cluster2", "cluster3"]
 "quota-name" : "quota-1"
}

15. GET (Check status of operation)

Get Operation status

GET
URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/status
GET BODY:

Return Body :
{
  "metadata" : {
     "name" : "logical-cloud-1"
     "description" : "<description>",
   }
  
  "clusters" : [
    "cluster-1" : {
       "namespace-status" : "<status>",
       "role-status" : "<status>",
       "role-binding-status" : "<status>"
     }
    "cluster-2" : {
       "namespace-status" : "<status>",
       "role-status" : "<status>",
       "role-binding-status" : "<status>"
     }
   ],
  "status": "Creation in Progress " //Created, Creation Failed 
}

16. Add Key Value pair to logical cloud database

Add KV pair

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/kv-pairs
POST BODY
{
   "metadata":{
      "name":"<name>",
      "description":"<description>",
      "userData1":"<user data>",
      "userData2":"<user data>"
   },
   "spec":{
      "kv":[
         {
            "key1":"val1"
         },
         {
            "key2":"val2"
         }
      ]
   }
}
 
RETURN STATUS: 201
RETURN BODY:
{
   "metadata":{
      "name":"<name>",
      "description":"<description>",
      "userData1":"<user data>",
      "userData2":"<user data>"
   },
   "spec":{
      "kv":[
         {
            "key1":"val1"
         },
         {
            "key2":"val2"
         }
      ]
   }
}

17. PUT (Update kv pair)

Update KV pair

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/kv-pairs/<name>
PUT BODY
{
   "metadata":{
      "description":"<description>",
      "userData1":"<user data>",
      "userData2":"<user data>"
   },
   "spec":{
      "kv":[
         {
            "key1":"val3"
         },
         {
            "key2":"val4"
         }
      ]
   }
}
RETURN STATUS: 201
RETURN BODY:
{
   "metadata":{
      "description":"<description>",
      "userData1":"<user data>",
      "userData2":"<user data>"
   },
   "spec":{
      "kv":[
         {
            "key1":"val3"
         },
         {
            "key2":"val4"
         }
      ]
   }
}

18. GET KV pair

Get KV pair

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/kv-pairs/<name>

RETURN STATUS: 200
RETURN BODY:
{
   "metadata":{
      "name":"<name>",
      "description":"<description>",
      "userData1":"<user data>",
      "userData2":"<user data>"
   },
   "spec":{
      "kv":[
         {
            "key1":"val1"
         },
         {
            "key2":"val2"
         }
      ]
   }
}

19. DELETE KV pair

Delete KV pair

URL: /v2/projects/<project-name>/logical-clouds/<logical-cloud-name>/kv-pairs/<name>

RETURN STATUS: 204

Distributed Cloud Manager (DCM)