Add Network and Provider Network Intent API support

Add API for CRUD operations to manage network
and provider-network intent resources.

Issue-ID: MULTICLOUD-1029
Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>
Change-Id: If3c71691b3825db50eacdb0ea87b0d5c436ad80f

5 files changed, 481 insertions, 42 deletions

diff --git a/src/ncm/pkg/module/cluster.go b/src/ncm/pkg/module/cluster.go
index c9ddad6e..e3260b7e 100644
--- a/src/ncm/pkg/module/cluster.go
+++ b/src/ncm/pkg/module/cluster.go
@@ -23,14 +23,6 @@ import (
 )
 
 // ClusterProvider contains the parameters needed for ClusterProviders
-// It implements the interface for managing the ClusterProviders
-type Metadata struct {
-	Name        string `json:"name"`
-	Description string `json:"description"`
-	UserData1   string `json:"userData1"`
-	UserData2   string `json:"userData2"`
-}
-
 type ClusterProvider struct {
 	Metadata Metadata `json:"metadata"`
 }
@@ -105,18 +97,18 @@ type ClusterManager interface {
 // ClusterClient implements the Manager
 // It will also be used to maintain some localized state
 type ClusterClient struct {
-	storeName  string
-	tagMeta    string
-	tagContent string
+	db ClientDbInfo
 }
 
 // NewClusterClient returns an instance of the ClusterClient
 // which implements the Manager
 func NewClusterClient() *ClusterClient {
 	return &ClusterClient{
-		storeName:  "cluster",
-		tagMeta:    "clustermetadata",
-		tagContent: "clustercontent",
+		db: ClientDbInfo{
+			storeName:  "cluster",
+			tagMeta:    "clustermetadata",
+			tagContent: "clustercontent",
+		},
 	}
 }
 
@@ -134,7 +126,7 @@ func (v *ClusterClient) CreateClusterProvider(p ClusterProvider) (ClusterProvide
 		return ClusterProvider{}, pkgerrors.New("ClusterProvider already exists")
 	}
 
-	err = db.DBconn.Insert(v.storeName, key, nil, v.tagMeta, p)
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
 	if err != nil {
 		return ClusterProvider{}, pkgerrors.Wrap(err, "Creating DB Entry")
 	}
@@ -150,7 +142,7 @@ func (v *ClusterClient) GetClusterProvider(name string) (ClusterProvider, error)
 		ClusterProviderName: name,
 	}
 
-	value, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return ClusterProvider{}, pkgerrors.Wrap(err, "Get ClusterProvider")
 	}
@@ -160,7 +152,7 @@ func (v *ClusterClient) GetClusterProvider(name string) (ClusterProvider, error)
 		cp := ClusterProvider{}
 		err = db.DBconn.Unmarshal(value[0], &cp)
 		if err != nil {
-			return ClusterProvider{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return ClusterProvider{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		return cp, nil
 	}
@@ -177,7 +169,7 @@ func (v *ClusterClient) GetClusterProviders() ([]ClusterProvider, error) {
 	}
 
 	var resp []ClusterProvider
-	values, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return []ClusterProvider{}, pkgerrors.Wrap(err, "Get ClusterProviders")
 	}
@@ -186,7 +178,7 @@ func (v *ClusterClient) GetClusterProviders() ([]ClusterProvider, error) {
 		cp := ClusterProvider{}
 		err = db.DBconn.Unmarshal(value, &cp)
 		if err != nil {
-			return []ClusterProvider{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return []ClusterProvider{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		resp = append(resp, cp)
 	}
@@ -202,7 +194,7 @@ func (v *ClusterClient) DeleteClusterProvider(name string) error {
 		ClusterProviderName: name,
 	}
 
-	err := db.DBconn.Remove(v.storeName, key)
+	err := db.DBconn.Remove(v.db.storeName, key)
 	if err != nil {
 		return pkgerrors.Wrap(err, "Delete ClusterProvider Entry;")
 	}
@@ -231,11 +223,11 @@ func (v *ClusterClient) CreateCluster(provider string, p Cluster, q ClusterConte
 		return Cluster{}, pkgerrors.New("Cluster already exists")
 	}
 
-	err = db.DBconn.Insert(v.storeName, key, nil, v.tagMeta, p)
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
 	if err != nil {
 		return Cluster{}, pkgerrors.Wrap(err, "Creating DB Entry")
 	}
-	err = db.DBconn.Insert(v.storeName, key, nil, v.tagContent, q)
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagContent, q)
 	if err != nil {
 		return Cluster{}, pkgerrors.Wrap(err, "Creating DB Entry")
 	}
@@ -251,7 +243,7 @@ func (v *ClusterClient) GetCluster(provider, name string) (Cluster, error) {
 		ClusterName:         name,
 	}
 
-	value, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return Cluster{}, pkgerrors.Wrap(err, "Get Cluster")
 	}
@@ -261,7 +253,7 @@ func (v *ClusterClient) GetCluster(provider, name string) (Cluster, error) {
 		cl := Cluster{}
 		err = db.DBconn.Unmarshal(value[0], &cl)
 		if err != nil {
-			return Cluster{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return Cluster{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		return cl, nil
 	}
@@ -277,7 +269,7 @@ func (v *ClusterClient) GetClusterContent(provider, name string) (ClusterContent
 		ClusterName:         name,
 	}
 
-	value, err := db.DBconn.Find(v.storeName, key, v.tagContent)
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagContent)
 	if err != nil {
 		return ClusterContent{}, pkgerrors.Wrap(err, "Get Cluster Content")
 	}
@@ -287,7 +279,7 @@ func (v *ClusterClient) GetClusterContent(provider, name string) (ClusterContent
 		cc := ClusterContent{}
 		err = db.DBconn.Unmarshal(value[0], &cc)
 		if err != nil {
-			return ClusterContent{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return ClusterContent{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		return cc, nil
 	}
@@ -303,7 +295,7 @@ func (v *ClusterClient) GetClusters(provider string) ([]Cluster, error) {
 		ClusterName:         "",
 	}
 
-	values, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return []Cluster{}, pkgerrors.Wrap(err, "Get Clusters")
 	}
@@ -314,7 +306,7 @@ func (v *ClusterClient) GetClusters(provider string) ([]Cluster, error) {
 		cp := Cluster{}
 		err = db.DBconn.Unmarshal(value, &cp)
 		if err != nil {
-			return []Cluster{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return []Cluster{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		resp = append(resp, cp)
 	}
@@ -330,7 +322,7 @@ func (v *ClusterClient) DeleteCluster(provider, name string) error {
 		ClusterName:         name,
 	}
 
-	err := db.DBconn.Remove(v.storeName, key)
+	err := db.DBconn.Remove(v.db.storeName, key)
 	if err != nil {
 		return pkgerrors.Wrap(err, "Delete Cluster Entry;")
 	}
@@ -359,7 +351,7 @@ func (v *ClusterClient) CreateClusterLabel(provider string, cluster string, p Cl
 		return ClusterLabel{}, pkgerrors.New("Cluster Label already exists")
 	}
 
-	err = db.DBconn.Insert(v.storeName, key, nil, v.tagMeta, p)
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
 	if err != nil {
 		return ClusterLabel{}, pkgerrors.Wrap(err, "Creating DB Entry")
 	}
@@ -376,7 +368,7 @@ func (v *ClusterClient) GetClusterLabel(provider, cluster, label string) (Cluste
 		ClusterLabelName:    label,
 	}
 
-	value, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return ClusterLabel{}, pkgerrors.Wrap(err, "Get Cluster")
 	}
@@ -386,7 +378,7 @@ func (v *ClusterClient) GetClusterLabel(provider, cluster, label string) (Cluste
 		cl := ClusterLabel{}
 		err = db.DBconn.Unmarshal(value[0], &cl)
 		if err != nil {
-			return ClusterLabel{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return ClusterLabel{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		return cl, nil
 	}
@@ -403,7 +395,7 @@ func (v *ClusterClient) GetClusterLabels(provider, cluster string) ([]ClusterLab
 		ClusterLabelName:    "",
 	}
 
-	values, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return []ClusterLabel{}, pkgerrors.Wrap(err, "Get Cluster Labels")
 	}
@@ -414,7 +406,7 @@ func (v *ClusterClient) GetClusterLabels(provider, cluster string) ([]ClusterLab
 		cp := ClusterLabel{}
 		err = db.DBconn.Unmarshal(value, &cp)
 		if err != nil {
-			return []ClusterLabel{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return []ClusterLabel{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		resp = append(resp, cp)
 	}
@@ -431,7 +423,7 @@ func (v *ClusterClient) DeleteClusterLabel(provider, cluster, label string) erro
 		ClusterLabelName:    label,
 	}
 
-	err := db.DBconn.Remove(v.storeName, key)
+	err := db.DBconn.Remove(v.db.storeName, key)
 	if err != nil {
 		return pkgerrors.Wrap(err, "Delete ClusterLabel Entry;")
 	}
@@ -459,7 +451,7 @@ func (v *ClusterClient) CreateClusterKvPairs(provider string, cluster string, p
 		return ClusterKvPairs{}, pkgerrors.New("Cluster KV Pair already exists")
 	}
 
-	err = db.DBconn.Insert(v.storeName, key, nil, v.tagMeta, p)
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
 	if err != nil {
 		return ClusterKvPairs{}, pkgerrors.Wrap(err, "Creating DB Entry")
 	}
@@ -476,7 +468,7 @@ func (v *ClusterClient) GetClusterKvPairs(provider, cluster, kvpair string) (Clu
 		ClusterKvPairsName:  kvpair,
 	}
 
-	value, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return ClusterKvPairs{}, pkgerrors.Wrap(err, "Get Cluster")
 	}
@@ -486,7 +478,7 @@ func (v *ClusterClient) GetClusterKvPairs(provider, cluster, kvpair string) (Clu
 		ckvp := ClusterKvPairs{}
 		err = db.DBconn.Unmarshal(value[0], &ckvp)
 		if err != nil {
-			return ClusterKvPairs{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return ClusterKvPairs{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		return ckvp, nil
 	}
@@ -503,7 +495,7 @@ func (v *ClusterClient) GetAllClusterKvPairs(provider, cluster string) ([]Cluste
 		ClusterKvPairsName:  "",
 	}
 
-	values, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
 	if err != nil {
 		return []ClusterKvPairs{}, pkgerrors.Wrap(err, "Get Cluster KV Pairs")
 	}
@@ -514,7 +506,7 @@ func (v *ClusterClient) GetAllClusterKvPairs(provider, cluster string) ([]Cluste
 		cp := ClusterKvPairs{}
 		err = db.DBconn.Unmarshal(value, &cp)
 		if err != nil {
-			return []ClusterKvPairs{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+			return []ClusterKvPairs{}, pkgerrors.Wrap(err, "Unmarshalling Value")
 		}
 		resp = append(resp, cp)
 	}
@@ -531,7 +523,7 @@ func (v *ClusterClient) DeleteClusterKvPairs(provider, cluster, kvpair string) e
 		ClusterKvPairsName:  kvpair,
 	}
 
-	err := db.DBconn.Remove(v.storeName, key)
+	err := db.DBconn.Remove(v.db.storeName, key)
 	if err != nil {
 		return pkgerrors.Wrap(err, "Delete ClusterKvPairs Entry;")
 	}
diff --git a/src/ncm/pkg/module/module.go b/src/ncm/pkg/module/module.go
index c1c24510..a9950901 100644
--- a/src/ncm/pkg/module/module.go
+++ b/src/ncm/pkg/module/module.go
@@ -18,7 +18,9 @@ package module
 
 // Client for using the services in the orchestrator
 type Client struct {
-	Cluster *ClusterClient
+	Cluster     *ClusterClient
+	Network     *NetworkClient
+	ProviderNet *ProviderNetClient
 	// Add Clients for API's here
 }
 
@@ -26,6 +28,8 @@ type Client struct {
 func NewClient() *Client {
 	c := &Client{}
 	c.Cluster = NewClusterClient()
+	c.Network = NewNetworkClient()
+	c.ProviderNet = NewProviderNetClient()
 	// Add Client API handlers here
 	return c
 }
diff --git a/src/ncm/pkg/module/module_definitions.go b/src/ncm/pkg/module/module_definitions.go
new file mode 100644
index 00000000..1e839014
--- /dev/null
+++ b/src/ncm/pkg/module/module_definitions.go
@@ -0,0 +1,101 @@
+/*
+ * 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 (
+	"strings"
+
+	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/validation"
+	pkgerrors "github.com/pkg/errors"
+)
+
+const VLAN_PROVIDER_NET_TYPE_VLAN string = "VLAN"
+const VLAN_PROVIDER_NET_TYPE_DIRECT string = "DIRECT"
+
+var PROVIDER_NET_TYPES = [...]string{VLAN_PROVIDER_NET_TYPE_VLAN, VLAN_PROVIDER_NET_TYPE_DIRECT}
+
+const CNI_TYPE_OVN4NFV string = "ovn4nfv"
+
+var CNI_TYPES = [...]string{CNI_TYPE_OVN4NFV}
+
+// It implements the interface for managing the ClusterProviders
+type Metadata struct {
+	Name        string `json:"name"`
+	Description string `json:"description"`
+	UserData1   string `json:"userData1"`
+	UserData2   string `json:"userData2"`
+}
+
+type ClientDbInfo struct {
+	storeName  string // name of the mongodb collection to use for client documents
+	tagMeta    string // attribute key name for the json data of a client document
+	tagContent string // attribute key name for the file data of a client document
+}
+
+type Ipv4Subnet struct {
+	Subnet  string `json:"subnet"` // CIDR notation, e.g. 172.16.33.0/24
+	Name    string `json:"name"`
+	Gateway string `json:"gateway"`    // IPv4 addre, e.g. 172.16.33.1/24
+	Exclude string `json:"excludeIps"` // space separated list of single IPs or ranges e.g. "172.16.33.2 172.16.33.5..172.16.33.10"
+}
+
+const VLAN_NODE_ANY = "any"
+const VLAN_NODE_SPECIFIC = "specific"
+
+var VLAN_NODE_SELECTORS = [...]string{VLAN_NODE_ANY, VLAN_NODE_SPECIFIC}
+
+type Vlan struct {
+	VlanId                int      `json:"vlanID"`
+	ProviderInterfaceName string   `json:"providerInterfaceName"`
+	LogicalInterfaceName  string   `json:"logicalInterfaceName"`
+	VlanNodeSelector      string   `json:"vlanNodeSelector"`
+	NodeLabelList         []string `json:"nodeLabelList"`
+}
+
+// Check for valid format of an Ipv4Subnet
+func ValidateSubnet(sub Ipv4Subnet) error {
+	// verify subnet is in valid cidr format
+	err := validation.IsIpv4Cidr(sub.Subnet)
+	if err != nil {
+		return pkgerrors.Wrap(err, "invalid subnet")
+	}
+
+	// just a size check on interface name - system dependent
+	errs := validation.IsValidName(sub.Name)
+	if len(errs) > 0 {
+		return pkgerrors.Errorf("Invalid subnet name=[%v], errors: %v", sub.Name, errs)
+	}
+
+	// verify gateway is in valid cidr format
+	if len(sub.Gateway) > 0 {
+		err = validation.IsIpv4Cidr(sub.Gateway)
+		if err != nil {
+			return pkgerrors.Wrap(err, "invalid gateway")
+		}
+	}
+
+	// verify excludeIps is composed of space separated ipv4 addresses and
+	// ipv4 address ranges separated by '..'
+	for _, value := range strings.Fields(sub.Exclude) {
+		for _, ip := range strings.SplitN(value, "..", 2) {
+			err = validation.IsIpv4(ip)
+			if err != nil {
+				return pkgerrors.Errorf("invalid ipv4 exclude list %v", sub.Exclude)
+			}
+		}
+	}
+	return nil
+}
diff --git a/src/ncm/pkg/module/network.go b/src/ncm/pkg/module/network.go
new file mode 100644
index 00000000..2d4121e9
--- /dev/null
+++ b/src/ncm/pkg/module/network.go
@@ -0,0 +1,170 @@
+/*
+ * 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 (
+	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+
+	pkgerrors "github.com/pkg/errors"
+)
+
+// Network contains the parameters needed for dynamic networks
+type Network struct {
+	Metadata Metadata    `json:"metadata"`
+	Spec     NetworkSpec `json:"spec"`
+}
+
+type NetworkSpec struct {
+	CniType     string       `json:"cniType"`
+	Ipv4Subnets []Ipv4Subnet `json:"ipv4Subnets"`
+}
+
+// NetworkKey is the key structure that is used in the database
+type NetworkKey struct {
+	ClusterProviderName string `json:"provider"`
+	ClusterName         string `json:"cluster"`
+	NetworkName         string `json:"network"`
+}
+
+// Manager is an interface exposing the Network functionality
+type NetworkManager interface {
+	CreateNetwork(pr Network, clusterProvider, cluster string, exists bool) (Network, error)
+	GetNetwork(name, clusterProvider, cluster string) (Network, error)
+	GetNetworks(clusterProvider, cluster string) ([]Network, error)
+	DeleteNetwork(name, clusterProvider, cluster string) error
+}
+
+// NetworkClient implements the Manager
+// It will also be used to maintain some localized state
+type NetworkClient struct {
+	db ClientDbInfo
+}
+
+// NewNetworkClient returns an instance of the NetworkClient
+// which implements the Manager
+func NewNetworkClient() *NetworkClient {
+	return &NetworkClient{
+		db: ClientDbInfo{
+			storeName: "cluster",
+			tagMeta:   "networkmetadata",
+		},
+	}
+}
+
+// CreateNetwork - create a new Network
+func (v *NetworkClient) CreateNetwork(p Network, clusterProvider, cluster string, exists bool) (Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         p.Metadata.Name,
+	}
+
+	//Check if cluster exists
+	_, err := NewClusterClient().GetCluster(clusterProvider, cluster)
+	if err != nil {
+		return Network{}, pkgerrors.New("Unable to find the cluster")
+	}
+
+	//Check if this Network already exists
+	_, err = v.GetNetwork(p.Metadata.Name, clusterProvider, cluster)
+	if err == nil && !exists {
+		return Network{}, pkgerrors.New("Network already exists")
+	}
+
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
+	if err != nil {
+		return Network{}, pkgerrors.Wrap(err, "Creating DB Entry")
+	}
+
+	return p, nil
+}
+
+// GetNetwork returns the Network for corresponding name
+func (v *NetworkClient) GetNetwork(name, clusterProvider, cluster string) (Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         name,
+	}
+
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return Network{}, pkgerrors.Wrap(err, "Get Network")
+	}
+
+	//value is a byte array
+	if value != nil {
+		cp := Network{}
+		err = db.DBconn.Unmarshal(value[0], &cp)
+		if err != nil {
+			return Network{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		return cp, nil
+	}
+
+	return Network{}, pkgerrors.New("Error getting Network")
+}
+
+// GetNetworkList returns all of the Network for corresponding name
+func (v *NetworkClient) GetNetworks(clusterProvider, cluster string) ([]Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         "",
+	}
+
+	var resp []Network
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return []Network{}, pkgerrors.Wrap(err, "Get Networks")
+	}
+
+	for _, value := range values {
+		cp := Network{}
+		err = db.DBconn.Unmarshal(value, &cp)
+		if err != nil {
+			return []Network{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		resp = append(resp, cp)
+	}
+
+	return resp, nil
+}
+
+// Delete the  Network from database
+func (v *NetworkClient) DeleteNetwork(name, clusterProvider, cluster string) error {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         name,
+	}
+
+	err := db.DBconn.Remove(v.db.storeName, key)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete Network Entry;")
+	}
+
+	return nil
+}
diff --git a/src/ncm/pkg/module/providernet.go b/src/ncm/pkg/module/providernet.go
new file mode 100644
index 00000000..5e2c0343
--- /dev/null
+++ b/src/ncm/pkg/module/providernet.go
@@ -0,0 +1,172 @@
+/*
+ * 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 (
+	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+
+	pkgerrors "github.com/pkg/errors"
+)
+
+// ProviderNet contains the parameters needed for dynamic networks
+type ProviderNet struct {
+	Metadata Metadata        `json:"metadata"`
+	Spec     ProviderNetSpec `json:"spec"`
+}
+
+type ProviderNetSpec struct {
+	CniType         string       `json:"cniType"`
+	Ipv4Subnets     []Ipv4Subnet `json:"ipv4Subnets"`
+	ProviderNetType string       `json:"providerNetType"`
+	Vlan            Vlan         `json:"vlan"`
+}
+
+// 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 ClientDbInfo
+}
+
+// NewProviderNetClient returns an instance of the ProviderNetClient
+// which implements the Manager
+func NewProviderNetClient() *ProviderNetClient {
+	return &ProviderNetClient{
+		db: ClientDbInfo{
+			storeName: "cluster",
+			tagMeta:   "networkmetadata",
+		},
+	}
+}
+
+// CreateProviderNet - create a new ProviderNet
+func (v *ProviderNetClient) CreateProviderNet(p ProviderNet, clusterProvider, cluster string, exists bool) (ProviderNet, error) {
+
+	//Construct key and tag to select the entry
+	key := ProviderNetKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		ProviderNetName:     p.Metadata.Name,
+	}
+
+	//Check if cluster exists
+	_, err := NewClusterClient().GetCluster(clusterProvider, cluster)
+	if err != nil {
+		return ProviderNet{}, pkgerrors.New("Unable to find the cluster")
+	}
+
+	//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 {
+
+	//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
+}