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Network Manager implementation (#116)
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‎Makefile‎

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@@ -31,6 +31,7 @@ rbacs: controller-gen
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$(CONTROLLER_GEN) paths="./pkg/local-resource-manager" rbac:roleName=node-local-resource-manager output:rbac:stdout | awk -v RS="---\n" 'NR>1{f="./deployments/node/files/node-local-resource-manager-" $$4 ".yaml";printf "%s",$$0 > f; close(f)}' && $(SED_COMMAND) deployments/node/files/node-local-resource-manager-ClusterRole.yaml
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$(CONTROLLER_GEN) paths="./pkg/rear-manager/" rbac:roleName=node-rear-manager output:rbac:stdout | awk -v RS="---\n" 'NR>1{f="./deployments/node/files/node-rear-manager-" $$4 ".yaml";printf "%s",$$0 > f; close(f)}' && $(SED_COMMAND) deployments/node/files/node-rear-manager-ClusterRole.yaml
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$(CONTROLLER_GEN) paths="./pkg/rear-controller/..." rbac:roleName=node-rear-controller output:rbac:stdout | awk -v RS="---\n" 'NR>1{f="./deployments/node/files/node-rear-controller-" $$4 ".yaml";printf "%s",$$0 > f; close(f)}' && $(SED_COMMAND) deployments/node/files/node-rear-controller-ClusterRole.yaml
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$(CONTROLLER_GEN) paths="./pkg/network-manager/" rbac:roleName=node-network-manager output:rbac:stdout | awk -v RS="---\n" 'NR>1{f="./deployments/node/files/node-network-manager-" $$4 ".yaml";printf "%s",$$0 > f; close(f)}' && $(SED_COMMAND) deployments/node/files/node-network-manager-ClusterRole.yaml
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# Install gci if not available
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gci:

‎apis/network/v1alpha1/groupversion_info.go‎

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// Copyright 2022-2024 FLUIDOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package v1alpha1 contains API Schema definitions for the advertisement v1alpha1 API group
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// +kubebuilder:object:generate=true
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// +groupName=network.fluidos.eu
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package v1alpha1
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import (
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"k8s.io/apimachinery/pkg/runtime/schema"
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"sigs.k8s.io/controller-runtime/pkg/scheme"
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)
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var (
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// GroupVersion is group version used to register these objects.
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GroupVersion = schema.GroupVersion{Group: "network.fluidos.eu", Version: "v1alpha1"}
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// SchemeBuilder is used to add go types to the GroupVersionKind scheme.
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SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
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// AddToScheme adds the types in this group-version to the given scheme.
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AddToScheme = SchemeBuilder.AddToScheme
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)

‎apis/network/v1alpha1/knowncluster_status.go‎

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// Copyright 2022-2024 FLUIDOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v1alpha1
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import "github.com/fluidos-project/node/pkg/utils/tools"
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// UpdateStatus updates the status of the KnownCluster.
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func (knowncluster *KnownCluster) UpdateStatus() {
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knowncluster.Status.LastUpdateTime = tools.GetTimeNow()
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knowncluster.Status.ExpirationTime = tools.GetExpirationTime(0, 0, 10)
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}

‎apis/network/v1alpha1/knowncluster_types.go‎

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// Copyright 2022-2024 FLUIDOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v1alpha1
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// KnownClusterSpec defines the desired state of KnownCluster.
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type KnownClusterSpec struct {
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// Address of the KnownCluster.
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Address string `json:"address"`
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}
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// KnownClusterStatus defines the observed state of KnownCluster.
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type KnownClusterStatus struct {
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// This field represents the expiration time of the KnownCluster. It is used to determine when the KnownCluster is no longer valid.
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ExpirationTime string `json:"expirationTime"`
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// This field represents the last update time of the KnownCluster.
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LastUpdateTime string `json:"lastUpdateTime"`
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}
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//+kubebuilder:object:root=true
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//+kubebuilder:subresource:status
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//+kubebuilder:resource:shortName=kclust;kclusts
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// KnownCluster is the Schema for the clusters API.
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type KnownCluster struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ObjectMeta `json:"metadata,omitempty"`
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Spec KnownClusterSpec `json:"spec,omitempty"`
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Status KnownClusterStatus `json:"status,omitempty"`
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}
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//+kubebuilder:object:root=true
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// KnownClusterList contains a list of KnownCluster.
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type KnownClusterList struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ListMeta `json:"metadata,omitempty"`
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Items []KnownCluster `json:"items"`
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}
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func init() {
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SchemeBuilder.Register(&KnownCluster{}, &KnownClusterList{})
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}

‎apis/network/v1alpha1/zz_generated.deepcopy.go‎

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Some generated files are not rendered by default. Learn more about customizing how changed files appear on GitHub.

‎cmd/network-manager/doc.go‎

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// Copyright 2022-2024 FLUIDOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package main is the entrypoint for the network manager
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package main

‎cmd/network-manager/main.go‎

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// Copyright 2022-2024 FLUIDOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"flag"
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"os"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/healthz"
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"sigs.k8s.io/controller-runtime/pkg/log/zap"
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networkv1alpha1 "github.com/fluidos-project/node/apis/network/v1alpha1"
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nodecorev1alpha1 "github.com/fluidos-project/node/apis/nodecore/v1alpha1"
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networkmanager "github.com/fluidos-project/node/pkg/network-manager"
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)
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var (
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scheme = runtime.NewScheme()
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setupLog = ctrl.Log.WithName("setup")
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)
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func init() {
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utilruntime.Must(corev1.AddToScheme(scheme))
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utilruntime.Must(nodecorev1alpha1.AddToScheme(scheme))
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utilruntime.Must(networkv1alpha1.AddToScheme(scheme))
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//+kubebuilder:scaffold:scheme
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}
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func main() {
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var metricsAddr string
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var enableLeaderElection bool
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var probeAddr string
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flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
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flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
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flag.BoolVar(&enableLeaderElection, "leader-elect", false,
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"Enable leader election for controller manager. "+
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"Enabling this will ensure there is only one active controller manager.")
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enableLocalDiscovery := flag.Bool("enable-local-discovery", true, "Enable discovery of other clusters on same LAN")
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cniInterface := flag.String("cniInterface", "", "Name of the CNI virtual interface")
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opts := zap.Options{
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Development: true,
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}
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opts.BindFlags(flag.CommandLine)
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flag.Parse()
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ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
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// Client
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cfg := ctrl.GetConfigOrDie()
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cl, err := client.New(cfg, client.Options{Scheme: scheme})
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if err != nil {
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setupLog.Error(err, "Unable to create client")
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os.Exit(1)
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}
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mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
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Scheme: scheme,
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MetricsBindAddress: metricsAddr,
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HealthProbeBindAddress: probeAddr,
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LeaderElection: enableLeaderElection,
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LeaderElectionID: "a0b0c1d1.fluidos.eu",
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})
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if err != nil {
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setupLog.Error(err, "unable to start manager")
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os.Exit(1)
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}
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// Print something about the mgr
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setupLog.Info("Manager started", "manager", mgr)
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// Buffer for clusters multicast messages
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nm := &networkmanager.NetworkManager{EnableLocalDiscovery: *enableLocalDiscovery}
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// Start the NetworkManager setup
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if err := networkmanager.Setup(context.Background(), cl, nm, cniInterface); err != nil {
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setupLog.Error(err, "Unable to setup NetworkManager")
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os.Exit(1)
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}
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// Start the NetworkManager extecution
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if err := networkmanager.Execute(context.Background(), cl, nm); err != nil {
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setupLog.Error(err, "Unable to execute NetworkManager")
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os.Exit(1)
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}
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// Register the controller
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if err = (&networkmanager.KnownClusterReconciler{
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Client: cl,
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Scheme: mgr.GetScheme(),
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}).SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to create controller", "controller", "KnownCluster")
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os.Exit(1)
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}
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// Register health checks
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if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
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setupLog.Error(err, "unable to set up health check")
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os.Exit(1)
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}
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if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
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setupLog.Error(err, "unable to set up ready check")
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os.Exit(1)
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}
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// Start the NetworkManager reconcile
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setupLog.Info("Starting manager")
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if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
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setupLog.Error(err, "problem running manager")
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os.Exit(1)
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}
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}

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