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authorenyinna1234 <enyinna.ochulor@intel.com>2020-02-14 08:41:49 -0800
committerenyinna1234 <enyinna.ochulor@intel.com>2020-04-10 08:15:33 -0700
commit10b17da590fc43622c6080815f65fbbb2721b640 (patch)
treeb9a8f456f97fd8ac3883bacf7835a2baaceed9a2 /src/dcm/pkg/module/quota.go
parent335c7cca38eb804c2977e4dd9af9efa0ea7ef82b (diff)
Add Distributed Cloud Manager
This handles RESTful API CRUD operations for logical clouds, CLuster, User Permissions, Quota, and Key Value pairs. See: https://wiki.onap.org/x/tAiVB Issue-ID: MULTICLOUD-996 Signed-off-by: Enyinna Ochulor <enyinna.ochulor@intel.com> Change-Id: I654a304cd682f762c02cfd92b4483d1edea63fca
Diffstat (limited to 'src/dcm/pkg/module/quota.go')
-rw-r--r--src/dcm/pkg/module/quota.go222
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diff --git a/src/dcm/pkg/module/quota.go b/src/dcm/pkg/module/quota.go
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+/*
+* Copyright 2020 Intel Corporation, Inc
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package module
+
+import (
+ pkgerrors "github.com/pkg/errors"
+)
+
+// Quota contains the parameters needed for a Quota
+type Quota struct {
+ MetaData QMetaDataList `json:"metadata"`
+ Specification QSpec `json:"spec"`
+}
+
+
+// MetaData contains the parameters needed for metadata
+type QMetaDataList struct {
+ QuotaName string `json:"name"`
+ Description string `json:"description"`
+}
+
+// Spec contains the parameters needed for spec
+type QSpec struct {
+ LimitsCPU string `json:"limits.cpu"`
+ LimitsMemory string `json:"limits.memory"`
+ RequestsCPU string `json:"requests.cpu"`
+ RequestsMemory string `json:"requests.memory"`
+ RequestsStorage string `json:"requests.storage"`
+ LimitsEphemeralStorage string `json:"limits.ephemeral.storage"`
+ PersistentVolumeClaims string `json:"persistentvolumeclaims"`
+ Pods string `json:"pods"`
+ ConfigMaps string `json:"configmaps"`
+ ReplicationControllers string `json:"replicationcontrollers"`
+ ResourceQuotas string `json:"resourcequotas"`
+ Services string `json:"services"`
+ ServicesLoadBalancers string `json:"services.loadbalancers"`
+ ServicesNodePorts string `json:"services.nodeports"`
+ Secrets string `json:"secrets"`
+ CountReplicationControllers string `json:"count/replicationcontrollers"`
+ CountDeploymentsApps string `json:"count/deployments.apps"`
+ CountReplicasetsApps string `json:"count/replicasets.apps"`
+ CountStatefulSets string `json:"count/statefulsets.apps"`
+ CountJobsBatch string `json:"count/jobs.batch"`
+ CountCronJobsBatch string `json:"count/cronjobs.batch"`
+ CountDeploymentsExtensions string `json:"count/deployments.extensions"`
+}
+
+// QuotaKey is the key structure that is used in the database
+type QuotaKey struct {
+ Project string `json:"project"`
+ LogicalCloudName string `json:"logical-cloud-name"`
+ QuotaName string `json:"qname"`
+}
+
+// QuotaManager is an interface that exposes the connection
+// functionality
+type QuotaManager interface {
+ CreateQuota(project, logicalCloud string, c Quota) (Quota, error)
+ GetQuota(project, logicalCloud, name string) (Quota, error)
+ GetAllQuotas(project, logicalCloud string) ([]Quota, error)
+ DeleteQuota(project, logicalCloud, name string) error
+ UpdateQuota(project, logicalCloud, name string, c Quota) (Quota, error)
+}
+
+// QuotaClient implements the QuotaManager
+// It will also be used to maintain some localized state
+type QuotaClient struct {
+ storeName string
+ tagMeta string
+ util Utility
+}
+
+// QuotaClient returns an instance of the QuotaClient
+// which implements the QuotaManager
+func NewQuotaClient() *QuotaClient {
+ service := DBService{}
+ return &QuotaClient{
+ storeName: "orchestrator",
+ tagMeta: "quota",
+ util: service,
+ }
+}
+
+// Create entry for the quota resource in the database
+func (v *QuotaClient) CreateQuota(project, logicalCloud string, c Quota) (Quota, error) {
+
+ //Construct key consisting of name
+ key := QuotaKey{
+ Project: project,
+ LogicalCloudName: logicalCloud,
+ QuotaName: c.MetaData.QuotaName,
+ }
+
+ //Check if project exists
+ err := v.util.CheckProject(project)
+ if err != nil {
+ return Quota{}, pkgerrors.New("Unable to find the project")
+ }
+ //check if logical cloud exists
+ err = v.util.CheckLogicalCloud(project, logicalCloud)
+ if err != nil {
+ return Quota{}, pkgerrors.New("Unable to find the logical cloud")
+ }
+ //Check if this Quota already exists
+ _, err = v.GetQuota(project, logicalCloud, c.MetaData.QuotaName)
+ if err == nil {
+ return Quota{}, pkgerrors.New("Quota already exists")
+ }
+
+ err = v.util.DBInsert(v.storeName, key, nil, v.tagMeta, c)
+ if err != nil {
+ return Quota{}, pkgerrors.Wrap(err, "Creating DB Entry")
+ }
+
+ return c, nil
+}
+
+// Get returns Quota for corresponding quota name
+func (v *QuotaClient) GetQuota(project, logicalCloud, quotaName string) (Quota, error) {
+
+ //Construct the composite key to select the entry
+ key := QuotaKey{
+ Project: project,
+ LogicalCloudName: logicalCloud,
+ QuotaName: quotaName,
+ }
+ value, err := v.util.DBFind(v.storeName, key, v.tagMeta)
+ if err != nil {
+ return Quota{}, pkgerrors.Wrap(err, "Quota")
+ }
+
+ //value is a byte array
+ if value != nil {
+ q := Quota{}
+ err = v.util.DBUnmarshal(value[0], &q)
+ if err != nil {
+ return Quota{}, pkgerrors.Wrap(err, "Unmarshaling value")
+ }
+ return q, nil
+ }
+
+ return Quota{}, pkgerrors.New("Error getting Quota")
+}
+
+// GetAll returns all cluster quotas in the logical cloud
+func (v *QuotaClient) GetAllQuotas(project, logicalCloud string) ([]Quota, error) {
+ //Construct the composite key to select the entry
+ key := QuotaKey{
+ Project: project,
+ LogicalCloudName: logicalCloud,
+ QuotaName: "",
+ }
+ var resp []Quota
+ values, err := v.util.DBFind(v.storeName, key, v.tagMeta)
+ if err != nil {
+ return []Quota{}, pkgerrors.Wrap(err, "Get All Quotas")
+ }
+
+ for _, value := range values {
+ q := Quota{}
+ err = v.util.DBUnmarshal(value, &q)
+ if err != nil {
+ return []Quota{}, pkgerrors.Wrap(err, "Unmarshaling value")
+ }
+ resp = append(resp, q)
+ }
+
+ return resp, nil
+}
+
+// Delete the Quota entry from database
+func (v *QuotaClient) DeleteQuota(project, logicalCloud, quotaName string) error {
+ //Construct the composite key to select the entry
+ key := QuotaKey{
+ Project: project,
+ LogicalCloudName: logicalCloud,
+ QuotaName: quotaName,
+ }
+ err := v.util.DBRemove(v.storeName, key)
+ if err != nil {
+ return pkgerrors.Wrap(err, "Delete Quota")
+ }
+ return nil
+}
+
+// Update an entry for the Quota in the database
+func (v *QuotaClient) UpdateQuota(project, logicalCloud, quotaName string, c Quota) (Quota, error) {
+
+ key := QuotaKey{
+ Project: project,
+ LogicalCloudName: logicalCloud,
+ QuotaName: quotaName,
+ }
+ //Check quota URL name against the quota json name
+ if c.MetaData.QuotaName != quotaName {
+ return Quota{}, pkgerrors.New("Update Error - Quota name mismatch")
+ }
+ //Check if this Quota exists
+ _, err := v.GetQuota(project, logicalCloud, quotaName)
+ if err != nil {
+ return Quota{}, pkgerrors.New("Update Error - Quota doesn't exist")
+ }
+ err = v.util.DBInsert(v.storeName, key, nil, v.tagMeta, c)
+ if err != nil {
+ return Quota{}, pkgerrors.Wrap(err, "Updating DB Entry")
+ }
+ return c, nil
+}