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[feature request] yurtctl cluster-info subcommand that list edge/clou…
…d nodes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /* | ||
| Copyright 2020 The OpenYurt Authors. | ||
| 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 clusterinfo | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
|
|
||
| ct "github.com/daviddengcn/go-colortext" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/pflag" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/klog" | ||
|
|
||
| "github.com/alibaba/openyurt/pkg/projectinfo" | ||
| kubeutil "github.com/alibaba/openyurt/pkg/yurtctl/util/kubernetes" | ||
|
|
||
| ) | ||
|
|
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| // ClusterInfoOptions has the information that required by cluster-info operation | ||
| type ClusterInfoOptions struct { | ||
| clientSet *kubernetes.Clientset | ||
| CloudNodes []string | ||
| EdgeNodes []string | ||
| YurtNodes []string | ||
| } | ||
|
|
||
| // NewClusterInfoOptions creates a new ClusterInfoOptions | ||
| func NewClusterInfoOptions() *ClusterInfoOptions { | ||
| return &ClusterInfoOptions{ | ||
| CloudNodes: []string{}, | ||
| EdgeNodes: []string{}, | ||
| YurtNodes: []string{}, | ||
| } | ||
| } | ||
|
|
||
| // NewClusterInfoCmd generates a new cluster-info command | ||
| func NewClusterInfoCmd() *cobra.Command { | ||
| o := NewClusterInfoOptions() | ||
| cmd := &cobra.Command{ | ||
| Use: "cluster-info", | ||
| Short: "list cloud nodes and edge nodes in cluster", | ||
| Run: func(cmd *cobra.Command, _ []string) { | ||
| if err := o.Complete(cmd.Flags()); err != nil { | ||
| klog.Fatalf("fail to complete the cluster-info option: %s", err) | ||
| } | ||
| if err := o.Run(); err != nil { | ||
| klog.Fatalf("fail to run cluster-info cmd: %s", err) | ||
| } | ||
| }, | ||
| } | ||
|
|
||
| return cmd | ||
| } | ||
|
|
||
| // Complete completes all the required options | ||
| func (o *ClusterInfoOptions) Complete(flags *pflag.FlagSet) error { | ||
| var err error | ||
| o.clientSet, err = kubeutil.GenClientSet(flags) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // Validate makes sure provided values for ClusterInfoOptions are valid | ||
| func (o *ClusterInfoOptions) Validate() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (o *ClusterInfoOptions) Run() (err error) { | ||
| // 1. list openyurt cluster node | ||
| key := projectinfo.GetEdgeWorkerLabelKey() | ||
| Nodes, err := o.clientSet.CoreV1().Nodes().List(metav1.ListOptions{LabelSelector: key}) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for _, node := range Nodes.Items { | ||
| o.YurtNodes = append(o.YurtNodes, node.Name) | ||
| // 2. cloud node | ||
| if node.Labels[key] == "false" { | ||
| o.CloudNodes = append(o.CloudNodes, node.Name) | ||
| } | ||
| // 3. edge node | ||
| if node.Labels[key] == "true" { | ||
| o.EdgeNodes = append(o.EdgeNodes, node.Name) | ||
| } | ||
|
|
||
| } | ||
| printClusterInfo(os.Stdout, "openyurt cluster", o.YurtNodes) | ||
| printClusterInfo(os.Stdout, "openyurt cloud", o.CloudNodes) | ||
| printClusterInfo(os.Stdout, "openyurt edge", o.EdgeNodes) | ||
| return | ||
| } | ||
|
|
||
| func printClusterInfo(out io.Writer, name string, nodes []string) { | ||
| ct.ChangeColor(ct.Green, false, ct.None, false) | ||
| fmt.Fprint(out, name) | ||
| ct.ResetColor() | ||
| fmt.Fprint(out, " nodes list ") | ||
| ct.ChangeColor(ct.Yellow, false, ct.None, false) | ||
| fmt.Fprint(out, nodes) | ||
| ct.ResetColor() | ||
| fmt.Fprintln(out, "") | ||
| } |
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