Seed code for the Plugin

The code includes ovn4nfvk8s Plugin & CNI. It implements multiple OVN
interfaces for Pods and assumes Multus (or similar CNI) calls its CNI
not as first CNI.

Change-Id: I524c1d18752eb6dbc8d34addd3b60d5bbaa06ff4
Signed-off-by: Ritu Sood <ritu.sood@intel.com>
Signed-off-by: Victor Morales <victor.morales@intel.com>

1 files changed, 89 insertions, 0 deletions

diff --git a/internal/pkg/ovn/common.go b/internal/pkg/ovn/common.go
new file mode 100644
index 0000000..16923ea
--- /dev/null
+++ b/internal/pkg/ovn/common.go
@@ -0,0 +1,89 @@
+package ovn
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/sirupsen/logrus"
+	"strings"
+)
+
+func (oc *Controller) getIPFromOvnAnnotation(ovnAnnotation string) string {
+	if ovnAnnotation == "" {
+		return ""
+	}
+
+	var ovnAnnotationMap map[string]string
+	err := json.Unmarshal([]byte(ovnAnnotation), &ovnAnnotationMap)
+	if err != nil {
+		logrus.Errorf("Error in json unmarshaling ovn annotation "+
+			"(%v)", err)
+		return ""
+	}
+
+	ipAddressMask := strings.Split(ovnAnnotationMap["ip_address"], "/")
+	if len(ipAddressMask) != 2 {
+		logrus.Errorf("Error in splitting ip address")
+		return ""
+	}
+
+	return ipAddressMask[0]
+}
+
+func (oc *Controller) getMacFromOvnAnnotation(ovnAnnotation string) string {
+	if ovnAnnotation == "" {
+		return ""
+	}
+
+	var ovnAnnotationMap map[string]string
+	err := json.Unmarshal([]byte(ovnAnnotation), &ovnAnnotationMap)
+	if err != nil {
+		logrus.Errorf("Error in json unmarshaling ovn annotation "+
+			"(%v)", err)
+		return ""
+	}
+
+	return ovnAnnotationMap["mac_address"]
+}
+
+func stringSliceMembership(slice []string, key string) bool {
+	for _, val := range slice {
+		if val == key {
+			return true
+		}
+	}
+	return false
+}
+
+func (oc *Controller) getNetworkFromOvnAnnotation(ovnAnnotation string) string {
+	if ovnAnnotation == "" {
+		logrus.Errorf("getNetworkFromOvnAnnotation ovnAnnotation: %s", ovnAnnotation)
+		return ""
+	}
+	logrus.Infof("getNetworkFromOvnAnnotation ovnAnnotation: %s", ovnAnnotation)
+
+	var ovnAnnotationMap map[string]string
+	err := json.Unmarshal([]byte(ovnAnnotation), &ovnAnnotationMap)
+	if err != nil {
+		logrus.Errorf("Error in json unmarshaling ovn annotation "+
+			"(%v)", err)
+		return ""
+	}
+	for key, value := range ovnAnnotationMap {
+		logrus.Infof("getNetworkFromOvnAnnotation %s: %s", key, value)
+	}
+	return ovnAnnotationMap["name"]
+}
+
+func (oc *Controller) parseOvnNetworkObject(ovnnetwork string) ([]map[string]interface{}, error) {
+	var ovnNet []map[string]interface{}
+
+	if ovnnetwork == "" {
+		return nil, fmt.Errorf("parseOvnNetworkObject:error")
+	}
+
+	if err := json.Unmarshal([]byte(ovnnetwork), &ovnNet); err != nil {
+		return nil, fmt.Errorf("parseOvnNetworkObject: failed to load ovn network err: %v | ovn network: %v", err, ovnnetwork)
+	}
+
+	return ovnNet, nil
+}