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authorEric Multanen <eric.w.multanen@intel.com>2020-04-14 20:51:50 -0700
committerEric Multanen <eric.w.multanen@intel.com>2020-04-22 22:47:52 -0700
commit9e086eb494441de0967b84d0f04d3b4dc7e753c2 (patch)
treec36d579a197b2a19b83d18890938ce53935673eb /src/ncm/pkg
parenta25e24c34e4b0e42513bc00de7d97185a49a01fe (diff)
Add code to apply workload network annotations
Apply workload network intents to indicated resources in the AppContext. This will add/update network annotations for pods or resources that have pod templates. Issue-ID: MULTICLOUD-1029 Signed-off-by: Eric Multanen <eric.w.multanen@intel.com> Change-Id: I9ae4387a8c28a95510406da361cfef3f8257bc80
Diffstat (limited to 'src/ncm/pkg')
-rw-r--r--src/ncm/pkg/module/netcontrolintent.go133
-rw-r--r--src/ncm/pkg/module/resources.go273
2 files changed, 405 insertions, 1 deletions
diff --git a/src/ncm/pkg/module/netcontrolintent.go b/src/ncm/pkg/module/netcontrolintent.go
index 5ef9dffe..c005a935 100644
--- a/src/ncm/pkg/module/netcontrolintent.go
+++ b/src/ncm/pkg/module/netcontrolintent.go
@@ -17,8 +17,17 @@
package module
import (
- "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+ "encoding/json"
+ "strings"
+
+ jyaml "github.com/ghodss/yaml"
+ nettypes "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1"
+ "github.com/onap/multicloud-k8s/src/orchestrator/pkg/appcontext"
+ "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+ log "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/logutils"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/client-go/kubernetes/scheme"
pkgerrors "github.com/pkg/errors"
)
@@ -42,6 +51,7 @@ type NetControlIntentManager interface {
GetNetControlIntent(name, project, compositeapp, compositeappversion string) (NetControlIntent, error)
GetNetControlIntents(project, compositeapp, compositeappversion string) ([]NetControlIntent, error)
DeleteNetControlIntent(name, project, compositeapp, compositeappversion string) error
+ ApplyNetControlIntent(name, project, compositeapp, compositeappversion, appContextId string) error
}
// NetControlIntentClient implements the Manager
@@ -162,3 +172,124 @@ func (v *NetControlIntentClient) DeleteNetControlIntent(name, project, composite
return nil
}
+
+// (Test Routine) - Apply network-control-intent
+func (v *NetControlIntentClient) ApplyNetControlIntent(name, project, compositeapp, compositeappversion, appContextId string) error {
+ // TODO: Handle all Network Chain Intents for the Network Control Intent
+
+ // Handle all Workload Intents for the Network Control Intent
+ wis, err := NewWorkloadIntentClient().GetWorkloadIntents(project, compositeapp, compositeappversion, name)
+ if err != nil {
+ return pkgerrors.Wrapf(err, "Error getting Workload Intents for Network Control Intent %v for %v/%v%v not found", name, project, compositeapp, compositeappversion)
+ }
+
+ // Setup the AppContext
+ var context appcontext.AppContext
+ _, err = context.LoadAppContext(appContextId)
+ if err != nil {
+ return pkgerrors.Wrapf(err, "Error getting AppContext with Id: %v for %v/%v%v",
+ appContextId, project, compositeapp, compositeappversion)
+ }
+
+ // Handle all intents (currently just Interface intents) for each Workload Intent
+ for _, wi := range wis {
+ // The app/resource identified in the workload intent needs to be updated with two annotations.
+ // 1 - The "k8s.v1.cni.cncf.io/networks" annotation will have {"name": "ovn-networkobj", "namespace": "default"} added
+ // to it (preserving any existing values for this annotation.
+ // 2 - The "k8s.plugin.opnfv.org/nfn-network" annotation will add any network interfaces that are provided by the
+ // workload/interfaces intents.
+
+ // Prepare the list of interfaces from the workload intent
+ wifs, err := NewWorkloadIfIntentClient().GetWorkloadIfIntents(project,
+ compositeapp,
+ compositeappversion,
+ name,
+ wi.Metadata.Name)
+ if err != nil {
+ return pkgerrors.Wrapf(err,
+ "Error getting Workload Interface Intents for Workload Intent %v under Network Control Intent %v for %v/%v%v not found",
+ wi.Metadata.Name, name, project, compositeapp, compositeappversion)
+ }
+ if len(wifs) == 0 {
+ log.Warn("No interface intents provided for workload intent", log.Fields{
+ "project": project,
+ "composite app": compositeapp,
+ "composite app version": compositeappversion,
+ "network control intent": name,
+ "workload intent": wi.Metadata.Name,
+ })
+ continue
+ }
+
+ // Get all clusters for the current App from the AppContext
+ clusters, err := context.GetClusterNames(wi.Spec.AppName)
+ for _, c := range clusters {
+ rh, err := context.GetResourceHandle(wi.Spec.AppName, c,
+ strings.Join([]string{wi.Spec.WorkloadResource, wi.Spec.Type}, "+"))
+ if err != nil {
+ log.Warn("App Context resource handle not found", log.Fields{
+ "project": project,
+ "composite app": compositeapp,
+ "composite app version": compositeappversion,
+ "network control intent": name,
+ "workload name": wi.Metadata.Name,
+ "app": wi.Spec.AppName,
+ "resource": wi.Spec.WorkloadResource,
+ "resource type": wi.Spec.Type,
+ })
+ continue
+ }
+ r, err := context.GetValue(rh)
+ if err != nil {
+ log.Error("Error retrieving resource from App Context", log.Fields{
+ "error": err,
+ "resource handle": rh,
+ })
+ }
+
+ // Unmarshal resource to K8S object
+ robj, err := runtime.Decode(scheme.Codecs.UniversalDeserializer(), []byte(r.(string)))
+
+ // Add network annotation to object
+ netAnnot := nettypes.NetworkSelectionElement{
+ Name: "ovn-networkobj",
+ Namespace: "default",
+ }
+ AddNetworkAnnotation(robj, netAnnot)
+
+ // Add nfn interface annotations to object
+ var newNfnIfs []WorkloadIfIntentSpec
+ for _, i := range wifs {
+ newNfnIfs = append(newNfnIfs, i.Spec)
+ }
+ AddNfnAnnotation(robj, newNfnIfs)
+
+ // Marshal object back to yaml format (via json - seems to eliminate most clutter)
+ j, err := json.Marshal(robj)
+ if err != nil {
+ log.Error("Error marshalling resource to JSON", log.Fields{
+ "error": err,
+ })
+ continue
+ }
+ y, err := jyaml.JSONToYAML(j)
+ if err != nil {
+ log.Error("Error marshalling resource to YAML", log.Fields{
+ "error": err,
+ })
+ continue
+ }
+
+ // Update resource in AppContext
+ err = context.UpdateResourceValue(rh, string(y))
+ if err != nil {
+ log.Error("Network updating app context resource handle", log.Fields{
+ "error": err,
+ "resource handle": rh,
+ })
+ }
+ }
+ }
+
+ return nil
+}
diff --git a/src/ncm/pkg/module/resources.go b/src/ncm/pkg/module/resources.go
new file mode 100644
index 00000000..24c9833e
--- /dev/null
+++ b/src/ncm/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,
+ })
+ }
+}