/
cluster.go
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/
cluster.go
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/*
Copyright 2022 The KubeVela 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 model
import (
"context"
"strings"
"github.com/oam-dev/cluster-gateway/pkg/config"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/oam-dev/kubevela/pkg/multicluster"
)
// Cluster is cluster resource struct
type Cluster struct {
name string
alias string
clusterType string
endpoint string
labels string
}
// ClusterList is cluster resource list
type ClusterList []Cluster
// ListClusters list clusters where application deploys resource
func ListClusters(ctx context.Context, c client.Client) (ClusterList, error) {
name := ctx.Value(&CtxKeyAppName).(string)
ns := ctx.Value(&CtxKeyNamespace).(string)
app, err := LoadApplication(c, name, ns)
if err != nil {
return ClusterList{}, err
}
clusterSet := make(map[string]interface{})
for _, svc := range app.Status.AppliedResources {
if svc.Cluster == "" {
clusterSet[multicluster.ClusterLocalName] = struct{}{}
} else {
clusterSet[svc.Cluster] = struct{}{}
}
}
list := make(ClusterList, 0)
for key := range clusterSet {
clusterInfo := Cluster{
name: key,
}
cluster, err := multicluster.NewClusterClient(c).Get(context.Background(), key)
if err != nil {
continue
}
clusterInfo.alias = cluster.Spec.Alias
clusterInfo.clusterType = string(cluster.Spec.CredentialType)
clusterInfo.endpoint = cluster.Spec.Endpoint
var labels []string
for k, v := range cluster.Labels {
if !strings.HasPrefix(k, config.MetaApiGroupName) {
labels = append(labels, "[blue::]"+k+"="+"[green::]"+v)
}
}
clusterInfo.labels = strings.Join(labels, ",")
list = append(list, clusterInfo)
}
return list, nil
}
// ToTableBody generate body of table in cluster view
func (l ClusterList) ToTableBody() [][]string {
data := make([][]string, len(l)+1)
data[0] = []string{AllCluster, "*", "*", "*", "*"}
for index, cluster := range l {
data[index+1] = []string{cluster.name, cluster.alias, cluster.clusterType, cluster.endpoint, cluster.labels}
}
return data
}