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authorRitu Sood <ritu.sood@intel.com>2021-02-25 14:17:19 +0000
committerGerrit Code Review <gerrit@onap.org>2021-02-25 14:17:19 +0000
commit965da8328566d58b2b38373f76aa1ab79c0b314e (patch)
tree21d98c7a7d73b9f8db7fb0b78f779601f71b4f17 /src/k8splugin/internal/app
parent2f09583725c8481ea3d7505ed2394c180af5ef03 (diff)
parent74dfd71d3628c52e63f66c079244638c675b2b9c (diff)
Merge "Provide Query API for CNF Instances"
Diffstat (limited to 'src/k8splugin/internal/app')
-rw-r--r--src/k8splugin/internal/app/client.go35
-rw-r--r--src/k8splugin/internal/app/instance.go63
2 files changed, 97 insertions, 1 deletions
diff --git a/src/k8splugin/internal/app/client.go b/src/k8splugin/internal/app/client.go
index 6762d1bc..f0edf8c9 100644
--- a/src/k8splugin/internal/app/client.go
+++ b/src/k8splugin/internal/app/client.go
@@ -1,6 +1,6 @@
/*
Copyright 2018 Intel Corporation.
-Copyright © 2020 Samsung Electronics
+Copyright © 2021 Samsung Electronics
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -90,6 +90,39 @@ func (k *KubernetesClient) getPodsByLabel(namespace string) ([]ResourceStatus, e
return resp, nil
}
+func (k *KubernetesClient) queryResources(apiVersion, kind, labelSelector, namespace string) ([]ResourceStatus, error) {
+ dynClient := k.GetDynamicClient()
+ mapper := k.GetMapper()
+ gvk := schema.FromAPIVersionAndKind(apiVersion, kind)
+ mapping, err := mapper.RESTMapping(gvk.GroupKind(), gvk.Version)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Preparing mapper based on GVK")
+ }
+
+ gvr := mapping.Resource
+ opts := metav1.ListOptions{
+ LabelSelector: labelSelector,
+ }
+ var unstrList *unstructured.UnstructuredList
+ switch mapping.Scope.Name() {
+ case meta.RESTScopeNameNamespace:
+ unstrList, err = dynClient.Resource(gvr).Namespace(namespace).List(opts)
+ case meta.RESTScopeNameRoot:
+ unstrList, err = dynClient.Resource(gvr).List(opts)
+ default:
+ return nil, pkgerrors.New("Got an unknown RESTScopeName for mapping: " + gvk.String())
+ }
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Querying for resources")
+ }
+
+ resp := make([]ResourceStatus, len(unstrList.Items))
+ for _, unstr := range unstrList.Items {
+ resp = append(resp, ResourceStatus{unstr.GetName(), gvk, unstr})
+ }
+ return resp, nil
+}
+
// getResourcesStatus yields status of given generic resource
func (k *KubernetesClient) getResourceStatus(res helm.KubernetesResource, namespace string) (ResourceStatus, error) {
dynClient := k.GetDynamicClient()
diff --git a/src/k8splugin/internal/app/instance.go b/src/k8splugin/internal/app/instance.go
index 69ade3a8..b11283e0 100644
--- a/src/k8splugin/internal/app/instance.go
+++ b/src/k8splugin/internal/app/instance.go
@@ -74,6 +74,7 @@ type InstanceManager interface {
Create(i InstanceRequest) (InstanceResponse, error)
Get(id string) (InstanceResponse, error)
Status(id string) (InstanceStatus, error)
+ Query(id, apiVersion, kind, name, labels string) (InstanceStatus, error)
List(rbname, rbversion, profilename string) ([]InstanceMiniResponse, error)
Find(rbName string, ver string, profile string, labelKeys map[string]string) ([]InstanceMiniResponse, error)
Delete(id string) error
@@ -208,6 +209,68 @@ func (v *InstanceClient) Get(id string) (InstanceResponse, error) {
return InstanceResponse{}, pkgerrors.New("Error getting Instance")
}
+// Query returns state of instance's filtered resources
+func (v *InstanceClient) Query(id, apiVersion, kind, name, labels string) (InstanceStatus, error) {
+
+ //Read the status from the DB
+ key := InstanceKey{
+ ID: id,
+ }
+ value, err := db.DBconn.Read(v.storeName, key, v.tagInst)
+ if err != nil {
+ return InstanceStatus{}, pkgerrors.Wrap(err, "Get Instance")
+ }
+ if value == nil { //value is a byte array
+ return InstanceStatus{}, pkgerrors.New("Status is not available")
+ }
+ resResp := InstanceResponse{}
+ err = db.DBconn.Unmarshal(value, &resResp)
+ if err != nil {
+ return InstanceStatus{}, pkgerrors.Wrap(err, "Unmarshaling Instance Value")
+ }
+
+ k8sClient := KubernetesClient{}
+ err = k8sClient.init(resResp.Request.CloudRegion, id)
+ if err != nil {
+ return InstanceStatus{}, pkgerrors.Wrap(err, "Getting CloudRegion Information")
+ }
+
+ var resourcesStatus []ResourceStatus
+ if labels != "" {
+ resList, err := k8sClient.queryResources(apiVersion, kind, labels, resResp.Namespace)
+ if err != nil {
+ return InstanceStatus{}, pkgerrors.Wrap(err, "Querying Resources")
+ }
+ // If user specifies both label and name, we want to pick up only single resource from these matching label
+ if name != "" {
+ //Assigning 0-length, because we may actually not find matching name
+ resourcesStatus = make([]ResourceStatus, 0)
+ for _, res := range resList {
+ if res.Name == name {
+ resourcesStatus = append(resourcesStatus, res)
+ break
+ }
+ }
+ } else {
+ resourcesStatus = resList
+ }
+ } else if name != "" {
+ resIdentifier := helm.KubernetesResource{}
+ res, err := k8sClient.getResourceStatus(resIdentifier, resResp.Namespace)
+ if err != nil {
+ return InstanceStatus{}, pkgerrors.Wrap(err, "Querying Resource")
+ }
+ resourcesStatus = []ResourceStatus{res}
+ }
+
+ resp := InstanceStatus{
+ Request: resResp.Request,
+ ResourceCount: int32(len(resourcesStatus)),
+ ResourcesStatus: resourcesStatus,
+ }
+ return resp, nil
+}
+
// Status returns the status for the instance
func (v *InstanceClient) Status(id string) (InstanceStatus, error) {