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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 networkintents
import (
clusterPkg "github.com/onap/multicloud-k8s/src/clm/pkg/cluster"
ncmtypes "github.com/onap/multicloud-k8s/src/ncm/pkg/module/types"
nettypes "github.com/onap/multicloud-k8s/src/ncm/pkg/networkintents/types"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
mtypes "github.com/onap/multicloud-k8s/src/orchestrator/pkg/module/types"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/state"
pkgerrors "github.com/pkg/errors"
)
// ProviderNet contains the parameters needed for dynamic networks
type ProviderNet struct {
Metadata mtypes.Metadata `json:"metadata"`
Spec ProviderNetSpec `json:"spec"`
}
type ProviderNetSpec struct {
CniType string `json:"cniType" yaml:"cniType"`
Ipv4Subnets []nettypes.Ipv4Subnet `json:"ipv4Subnets" yaml:"ipv4Subnets"`
ProviderNetType string `json:"providerNetType" yaml:"providerNetType"`
Vlan nettypes.Vlan `json:"vlan" yaml:"vlan"`
}
// structure for the Network Custom Resource
type CrProviderNet struct {
ApiVersion string `yaml:"apiVersion"`
Kind string `yaml:"kind"`
ProviderNet ProviderNet `yaml:",inline"`
}
const PROVIDER_NETWORK_APIVERSION = "k8s.plugin.opnfv.org/v1alpha1"
const PROVIDER_NETWORK_KIND = "ProviderNetwork"
// ProviderNetKey is the key structure that is used in the database
type ProviderNetKey struct {
ClusterProviderName string `json:"provider"`
ClusterName string `json:"cluster"`
ProviderNetName string `json:"providernet"`
}
// Manager is an interface exposing the ProviderNet functionality
type ProviderNetManager interface {
CreateProviderNet(pr ProviderNet, clusterProvider, cluster string, exists bool) (ProviderNet, error)
GetProviderNet(name, clusterProvider, cluster string) (ProviderNet, error)
GetProviderNets(clusterProvider, cluster string) ([]ProviderNet, error)
DeleteProviderNet(name, clusterProvider, cluster string) error
}
// ProviderNetClient implements the Manager
// It will also be used to maintain some localized state
type ProviderNetClient struct {
db ncmtypes.ClientDbInfo
}
// NewProviderNetClient returns an instance of the ProviderNetClient
// which implements the Manager
func NewProviderNetClient() *ProviderNetClient {
return &ProviderNetClient{
db: ncmtypes.ClientDbInfo{
StoreName: "cluster",
TagMeta: "networkmetadata",
},
}
}
// CreateProviderNet - create a new ProviderNet
func (v *ProviderNetClient) CreateProviderNet(p ProviderNet, clusterProvider, cluster string, exists bool) (ProviderNet, error) {
// verify cluster exists and in state to add provider networks
s, err := clusterPkg.NewClusterClient().GetClusterState(clusterProvider, cluster)
if err != nil {
return ProviderNet{}, pkgerrors.New("Unable to find the cluster")
}
switch s.State {
case state.StateEnum.Approved:
return ProviderNet{}, pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+state.StateEnum.Approved)
case state.StateEnum.Terminated:
break
case state.StateEnum.Created:
break
case state.StateEnum.Applied:
return ProviderNet{}, pkgerrors.Wrap(err, "Existing cluster provider network intents must be terminated before creating: "+cluster)
case state.StateEnum.Instantiated:
return ProviderNet{}, pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+state.StateEnum.Instantiated)
default:
return ProviderNet{}, pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+s.State)
}
//Construct key and tag to select the entry
key := ProviderNetKey{
ClusterProviderName: clusterProvider,
ClusterName: cluster,
ProviderNetName: p.Metadata.Name,
}
//Check if this ProviderNet already exists
_, err = v.GetProviderNet(p.Metadata.Name, clusterProvider, cluster)
if err == nil && !exists {
return ProviderNet{}, pkgerrors.New("ProviderNet already exists")
}
err = db.DBconn.Insert(v.db.StoreName, key, nil, v.db.TagMeta, p)
if err != nil {
return ProviderNet{}, pkgerrors.Wrap(err, "Creating DB Entry")
}
return p, nil
}
// GetProviderNet returns the ProviderNet for corresponding name
func (v *ProviderNetClient) GetProviderNet(name, clusterProvider, cluster string) (ProviderNet, error) {
//Construct key and tag to select the entry
key := ProviderNetKey{
ClusterProviderName: clusterProvider,
ClusterName: cluster,
ProviderNetName: name,
}
value, err := db.DBconn.Find(v.db.StoreName, key, v.db.TagMeta)
if err != nil {
return ProviderNet{}, pkgerrors.Wrap(err, "Get ProviderNet")
}
//value is a byte array
if value != nil {
cp := ProviderNet{}
err = db.DBconn.Unmarshal(value[0], &cp)
if err != nil {
return ProviderNet{}, pkgerrors.Wrap(err, "Unmarshalling Value")
}
return cp, nil
}
return ProviderNet{}, pkgerrors.New("Error getting ProviderNet")
}
// GetProviderNetList returns all of the ProviderNet for corresponding name
func (v *ProviderNetClient) GetProviderNets(clusterProvider, cluster string) ([]ProviderNet, error) {
//Construct key and tag to select the entry
key := ProviderNetKey{
ClusterProviderName: clusterProvider,
ClusterName: cluster,
ProviderNetName: "",
}
var resp []ProviderNet
values, err := db.DBconn.Find(v.db.StoreName, key, v.db.TagMeta)
if err != nil {
return []ProviderNet{}, pkgerrors.Wrap(err, "Get ProviderNets")
}
for _, value := range values {
cp := ProviderNet{}
err = db.DBconn.Unmarshal(value, &cp)
if err != nil {
return []ProviderNet{}, pkgerrors.Wrap(err, "Unmarshalling Value")
}
resp = append(resp, cp)
}
return resp, nil
}
// Delete the ProviderNet from database
func (v *ProviderNetClient) DeleteProviderNet(name, clusterProvider, cluster string) error {
// verify cluster is in a state where provider network intent can be deleted
s, err := clusterPkg.NewClusterClient().GetClusterState(clusterProvider, cluster)
if err != nil {
return pkgerrors.New("Unable to find the cluster")
}
switch s.State {
case state.StateEnum.Approved:
return pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+state.StateEnum.Approved)
case state.StateEnum.Terminated:
break
case state.StateEnum.Created:
break
case state.StateEnum.Applied:
return pkgerrors.Wrap(err, "Cluster provider network intents must be terminated before deleting: "+cluster)
case state.StateEnum.Instantiated:
return pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+state.StateEnum.Instantiated)
default:
return pkgerrors.Wrap(err, "Cluster is in an invalid state: "+cluster+" "+s.State)
}
//Construct key and tag to select the entry
key := ProviderNetKey{
ClusterProviderName: clusterProvider,
ClusterName: cluster,
ProviderNetName: name,
}
err = db.DBconn.Remove(v.db.StoreName, key)
if err != nil {
return pkgerrors.Wrap(err, "Delete ProviderNet Entry;")
}
return nil
}
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