Create OVN network action controller from ncm

Split out part of ncm microservice to act as the
Onv4k8s network action controller for the orchestrator.
No code changes really - just moving around to fit the
architectural plan.

Issue-ID: MULTICLOUD-1029
Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>
Change-Id: I17292ac72d041050269f05fc4a0c2a6ca741aeb5

1 files changed, 188 insertions, 0 deletions

diff --git a/src/ovnaction/pkg/module/workloadifintent.go b/src/ovnaction/pkg/module/workloadifintent.go
new file mode 100644
index 00000000..55062564
--- /dev/null
+++ b/src/ovnaction/pkg/module/workloadifintent.go
@@ -0,0 +1,188 @@
+/*
+ * 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"
+)
+
+// WorkloadIfIntent contains the parameters needed for dynamic networks
+type WorkloadIfIntent struct {
+	Metadata Metadata             `json:"metadata"`
+	Spec     WorkloadIfIntentSpec `json:"spec"`
+}
+
+type WorkloadIfIntentSpec struct {
+	IfName         string `json:"interface"`
+	NetworkName    string `json:"name"`
+	DefaultGateway string `json:"defaultGateway"`       // optional, default value is "false"
+	IpAddr         string `json:"ipAddress,omitempty"`  // optional, if not provided then will be dynamically allocated
+	MacAddr        string `json:"macAddress,omitempty"` // optional, if not provided then will be dynamically allocated
+}
+
+// WorkloadIfIntentKey is the key structure that is used in the database
+type WorkloadIfIntentKey struct {
+	Project             string `json:"provider"`
+	CompositeApp        string `json:"compositeapp"`
+	CompositeAppVersion string `json:"compositeappversion"`
+	NetControlIntent    string `json:"netcontrolintent"`
+	WorkloadIntent      string `json:"workloadintent"`
+	WorkloadIfIntent    string `json:"workloadifintent"`
+}
+
+// Manager is an interface exposing the WorkloadIfIntent functionality
+type WorkloadIfIntentManager interface {
+	CreateWorkloadIfIntent(wi WorkloadIfIntent, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string, exists bool) (WorkloadIfIntent, error)
+	GetWorkloadIfIntent(name, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) (WorkloadIfIntent, error)
+	GetWorkloadIfIntents(project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) ([]WorkloadIfIntent, error)
+	DeleteWorkloadIfIntent(name, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) error
+}
+
+// WorkloadIfIntentClient implements the Manager
+// It will also be used to maintain some localized state
+type WorkloadIfIntentClient struct {
+	db ClientDbInfo
+}
+
+// NewWorkloadIfIntentClient returns an instance of the WorkloadIfIntentClient
+// which implements the Manager
+func NewWorkloadIfIntentClient() *WorkloadIfIntentClient {
+	return &WorkloadIfIntentClient{
+		db: ClientDbInfo{
+			storeName: "orchestrator",
+			tagMeta:   "workloadifintentmetadata",
+		},
+	}
+}
+
+// CreateWorkloadIfIntent - create a new WorkloadIfIntent
+func (v *WorkloadIfIntentClient) CreateWorkloadIfIntent(wif WorkloadIfIntent, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string, exists bool) (WorkloadIfIntent, error) {
+
+	//Construct key and tag to select the entry
+	key := WorkloadIfIntentKey{
+		Project:             project,
+		CompositeApp:        compositeapp,
+		CompositeAppVersion: compositeappversion,
+		NetControlIntent:    netcontrolintent,
+		WorkloadIntent:      workloadintent,
+		WorkloadIfIntent:    wif.Metadata.Name,
+	}
+
+	//Check if the Workload Intent exists
+	_, err := NewWorkloadIntentClient().GetWorkloadIntent(workloadintent, project, compositeapp, compositeappversion, netcontrolintent)
+	if err != nil {
+		return WorkloadIfIntent{}, pkgerrors.Errorf("Workload Intent %v does not exist", workloadintent)
+	}
+
+	//Check if this WorkloadIfIntent already exists
+	_, err = v.GetWorkloadIfIntent(wif.Metadata.Name, project, compositeapp, compositeappversion, netcontrolintent, workloadintent)
+	if err == nil && !exists {
+		return WorkloadIfIntent{}, pkgerrors.New("WorkloadIfIntent already exists")
+	}
+
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, wif)
+	if err != nil {
+		return WorkloadIfIntent{}, pkgerrors.Wrap(err, "Creating DB Entry")
+	}
+
+	return wif, nil
+}
+
+// GetWorkloadIfIntent returns the WorkloadIfIntent for corresponding name
+func (v *WorkloadIfIntentClient) GetWorkloadIfIntent(name, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) (WorkloadIfIntent, error) {
+
+	//Construct key and tag to select the entry
+	key := WorkloadIfIntentKey{
+		Project:             project,
+		CompositeApp:        compositeapp,
+		CompositeAppVersion: compositeappversion,
+		NetControlIntent:    netcontrolintent,
+		WorkloadIntent:      workloadintent,
+		WorkloadIfIntent:    name,
+	}
+
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return WorkloadIfIntent{}, pkgerrors.Wrap(err, "Get WorkloadIfIntent")
+	}
+
+	//value is a byte array
+	if value != nil {
+		wif := WorkloadIfIntent{}
+		err = db.DBconn.Unmarshal(value[0], &wif)
+		if err != nil {
+			return WorkloadIfIntent{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		return wif, nil
+	}
+
+	return WorkloadIfIntent{}, pkgerrors.New("Error getting WorkloadIfIntent")
+}
+
+// GetWorkloadIfIntentList returns all of the WorkloadIfIntent for corresponding name
+func (v *WorkloadIfIntentClient) GetWorkloadIfIntents(project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) ([]WorkloadIfIntent, error) {
+
+	//Construct key and tag to select the entry
+	key := WorkloadIfIntentKey{
+		Project:             project,
+		CompositeApp:        compositeapp,
+		CompositeAppVersion: compositeappversion,
+		NetControlIntent:    netcontrolintent,
+		WorkloadIntent:      workloadintent,
+		WorkloadIfIntent:    "",
+	}
+
+	var resp []WorkloadIfIntent
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return []WorkloadIfIntent{}, pkgerrors.Wrap(err, "Get WorkloadIfIntents")
+	}
+
+	for _, value := range values {
+		wif := WorkloadIfIntent{}
+		err = db.DBconn.Unmarshal(value, &wif)
+		if err != nil {
+			return []WorkloadIfIntent{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		resp = append(resp, wif)
+	}
+
+	return resp, nil
+}
+
+// Delete the  WorkloadIfIntent from database
+func (v *WorkloadIfIntentClient) DeleteWorkloadIfIntent(name, project, compositeapp, compositeappversion, netcontrolintent, workloadintent string) error {
+
+	//Construct key and tag to select the entry
+	key := WorkloadIfIntentKey{
+		Project:             project,
+		CompositeApp:        compositeapp,
+		CompositeAppVersion: compositeappversion,
+		NetControlIntent:    netcontrolintent,
+		WorkloadIntent:      workloadintent,
+		WorkloadIfIntent:    name,
+	}
+
+	err := db.DBconn.Remove(v.db.storeName, key)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete WorkloadIfIntent Entry;")
+	}
+
+	return nil
+}