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-rw-r--r--src/ovnaction/pkg/module/resources.go273
1 files changed, 273 insertions, 0 deletions
diff --git a/src/ovnaction/pkg/module/resources.go b/src/ovnaction/pkg/module/resources.go
new file mode 100644
index 00000000..24c9833e
--- /dev/null
+++ b/src/ovnaction/pkg/module/resources.go
@@ -0,0 +1,273 @@
+/*
+ * 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 (
+ "encoding/json"
+ "fmt"
+
+ nettypes "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1"
+ netutils "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/utils"
+ log "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/logutils"
+ v1 "k8s.io/api/apps/v1"
+ batch "k8s.io/api/batch/v1"
+ batchv1beta1 "k8s.io/api/batch/v1beta1"
+ v1core "k8s.io/api/core/v1"
+ _ "k8s.io/kubernetes/pkg/apis/apps/install"
+ _ "k8s.io/kubernetes/pkg/apis/batch/install"
+ _ "k8s.io/kubernetes/pkg/apis/core/install"
+ _ "k8s.io/kubernetes/pkg/apis/extensions/install"
+
+ pkgerrors "github.com/pkg/errors"
+)
+
+type NfnAnnotation struct {
+ CniType string
+ Interface []WorkloadIfIntentSpec
+}
+
+const NfnAnnotationKey = "k8s.plugin.opnfv.org/nfn-network"
+
+// ParsePodTemplateNetworkAnnotation parses Pod annotation in PodTemplate
+func ParsePodTemplateNetworkAnnotation(pt *v1core.PodTemplateSpec) ([]*nettypes.NetworkSelectionElement, error) {
+ netAnnot := pt.Annotations[nettypes.NetworkAttachmentAnnot]
+ defaultNamespace := pt.Namespace
+
+ if len(netAnnot) == 0 {
+ return nil, pkgerrors.Errorf("No kubernetes network annotation found")
+ }
+
+ networks, err := netutils.ParseNetworkAnnotation(netAnnot, defaultNamespace)
+ if err != nil {
+ return nil, err
+ }
+ return networks, nil
+}
+
+// GetPodTemplateNetworkAnnotation gets Pod Nfn annotation in PodTemplate
+func GetPodTemplateNfnAnnotation(pt *v1core.PodTemplateSpec) NfnAnnotation {
+ var nfn NfnAnnotation
+
+ nfnAnnot := pt.Annotations[NfnAnnotationKey]
+ if len(nfnAnnot) == 0 {
+ return nfn
+ }
+
+ err := json.Unmarshal([]byte(nfnAnnot), &nfn)
+ if err != nil {
+ log.Warn("Error unmarshalling nfn annotation", log.Fields{
+ "annotation": nfnAnnot,
+ })
+ }
+ return nfn
+}
+
+// GetPodNetworkAnnotation gets Pod Nfn annotation in PodTemplate
+func GetPodNfnAnnotation(p *v1core.Pod) NfnAnnotation {
+ var nfn NfnAnnotation
+
+ nfnAnnot := p.Annotations[NfnAnnotationKey]
+ if len(nfnAnnot) == 0 {
+ return nfn
+ }
+
+ err := json.Unmarshal([]byte(nfnAnnot), &nfn)
+ if err != nil {
+ log.Warn("Error unmarshalling nfn annotation", log.Fields{
+ "annotation": nfnAnnot,
+ })
+ }
+ return nfn
+}
+
+func addNetworkAnnotation(a nettypes.NetworkSelectionElement, as []*nettypes.NetworkSelectionElement) []*nettypes.NetworkSelectionElement {
+ var netElements []*nettypes.NetworkSelectionElement
+
+ found := false
+ for _, e := range as {
+ if e.Name == a.Name {
+ found = true
+ }
+ netElements = append(netElements, e)
+ }
+ if !found {
+ netElements = append(netElements, &a)
+ }
+
+ return netElements
+}
+
+// Add the interfaces in the 'new' parameter to the nfn annotation
+func newNfnIfs(nfn NfnAnnotation, new []WorkloadIfIntentSpec) NfnAnnotation {
+ // Prepare a new interface list - combining the original plus new ones
+ var newNfn NfnAnnotation
+
+ if nfn.CniType != CNI_TYPE_OVN4NFV {
+ if len(nfn.CniType) > 0 {
+ log.Warn("Error existing nfn cnitype is invalid", log.Fields{
+ "existing cnitype": nfn.CniType,
+ "using cnitype": CNI_TYPE_OVN4NFV,
+ })
+ }
+ }
+ newNfn.CniType = CNI_TYPE_OVN4NFV
+
+ // update any interfaces already in the list with the updated interface
+ for _, i := range nfn.Interface {
+ for _, j := range new {
+ if i.NetworkName == j.NetworkName && i.IfName == j.IfName {
+ i.DefaultGateway = j.DefaultGateway
+ i.IpAddr = j.IpAddr
+ i.MacAddr = j.MacAddr
+ break
+ }
+ }
+ newNfn.Interface = append(newNfn.Interface, i)
+ }
+
+ // add new interfaces not present in original list
+ for _, j := range new {
+ found := false
+ for _, i := range nfn.Interface {
+ if i.NetworkName == j.NetworkName && i.IfName == j.IfName {
+ found = true
+ break
+ }
+ }
+ if !found {
+ newNfn.Interface = append(newNfn.Interface, j)
+ }
+ }
+ return newNfn
+}
+
+func updatePodTemplateNetworkAnnotation(pt *v1core.PodTemplateSpec, a nettypes.NetworkSelectionElement) {
+ netAnnotation, _ := ParsePodTemplateNetworkAnnotation(pt)
+ elements := addNetworkAnnotation(a, netAnnotation)
+ j, err := json.Marshal(elements)
+ if err != nil {
+ log.Error("Existing network annotation has invalid format", log.Fields{
+ "error": err,
+ })
+ return
+ }
+ if pt.Annotations == nil {
+ pt.Annotations = make(map[string]string)
+ }
+ pt.Annotations[nettypes.NetworkAttachmentAnnot] = string(j)
+}
+
+// Add a network annotation to the resource
+func AddNetworkAnnotation(r interface{}, a nettypes.NetworkSelectionElement) {
+
+ switch o := r.(type) {
+ case *batch.Job:
+ updatePodTemplateNetworkAnnotation(&o.Spec.Template, a)
+ case *batchv1beta1.CronJob:
+ updatePodTemplateNetworkAnnotation(&o.Spec.JobTemplate.Spec.Template, a)
+ case *v1.DaemonSet:
+ updatePodTemplateNetworkAnnotation(&o.Spec.Template, a)
+ case *v1.Deployment:
+ updatePodTemplateNetworkAnnotation(&o.Spec.Template, a)
+ case *v1.ReplicaSet:
+ updatePodTemplateNetworkAnnotation(&o.Spec.Template, a)
+ case *v1.StatefulSet:
+ updatePodTemplateNetworkAnnotation(&o.Spec.Template, a)
+ case *v1core.Pod:
+ netAnnotation, _ := netutils.ParsePodNetworkAnnotation(o)
+ elements := addNetworkAnnotation(a, netAnnotation)
+ j, err := json.Marshal(elements)
+ if err != nil {
+ log.Error("Existing network annotation has invalid format", log.Fields{
+ "error": err,
+ })
+ break
+ }
+ if o.Annotations == nil {
+ o.Annotations = make(map[string]string)
+ }
+ o.Annotations[nettypes.NetworkAttachmentAnnot] = string(j)
+ return
+ case *v1core.ReplicationController:
+ updatePodTemplateNetworkAnnotation(o.Spec.Template, a)
+ default:
+ typeStr := fmt.Sprintf("%T", o)
+ log.Warn("Network annotations not supported for resource type", log.Fields{
+ "resource type": typeStr,
+ })
+ }
+}
+
+func updatePodTemplateNfnAnnotation(pt *v1core.PodTemplateSpec, new []WorkloadIfIntentSpec) {
+ nfnAnnotation := GetPodTemplateNfnAnnotation(pt)
+ newNfnAnnotation := newNfnIfs(nfnAnnotation, new)
+ j, err := json.Marshal(newNfnAnnotation)
+ if err != nil {
+ log.Error("Network nfn annotation has invalid format", log.Fields{
+ "error": err,
+ })
+ return
+ }
+ if pt.Annotations == nil {
+ pt.Annotations = make(map[string]string)
+ }
+ pt.Annotations[NfnAnnotationKey] = string(j)
+}
+
+// Add an nfn annotation to the resource
+func AddNfnAnnotation(r interface{}, new []WorkloadIfIntentSpec) {
+
+ switch o := r.(type) {
+ case *batch.Job:
+ updatePodTemplateNfnAnnotation(&o.Spec.Template, new)
+ case *batchv1beta1.CronJob:
+ updatePodTemplateNfnAnnotation(&o.Spec.JobTemplate.Spec.Template, new)
+ case *v1.DaemonSet:
+ updatePodTemplateNfnAnnotation(&o.Spec.Template, new)
+ return
+ case *v1.Deployment:
+ updatePodTemplateNfnAnnotation(&o.Spec.Template, new)
+ return
+ case *v1.ReplicaSet:
+ updatePodTemplateNfnAnnotation(&o.Spec.Template, new)
+ case *v1.StatefulSet:
+ updatePodTemplateNfnAnnotation(&o.Spec.Template, new)
+ case *v1core.Pod:
+ nfnAnnotation := GetPodNfnAnnotation(o)
+ newNfnAnnotation := newNfnIfs(nfnAnnotation, new)
+ j, err := json.Marshal(newNfnAnnotation)
+ if err != nil {
+ log.Error("Network nfn annotation has invalid format", log.Fields{
+ "error": err,
+ })
+ break
+ }
+ if o.Annotations == nil {
+ o.Annotations = make(map[string]string)
+ }
+ o.Annotations[NfnAnnotationKey] = string(j)
+ return
+ case *v1core.ReplicationController:
+ updatePodTemplateNfnAnnotation(o.Spec.Template, new)
+ return
+ default:
+ typeStr := fmt.Sprintf("%T", o)
+ log.Warn("Network nfn annotations not supported for resource type", log.Fields{
+ "resource type": typeStr,
+ })
+ }
+}