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resolver.go
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resolver.go
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package tencent
import (
"context"
"fmt"
"github.com/pubg/kubeconfig-updater/backend/pkg/credentials"
"github.com/pubg/kubeconfig-updater/backend/pkg/service/cluster_metadata_service"
"log"
"github.com/pubg/kubeconfig-updater/backend/controller/protos"
"github.com/pubg/kubeconfig-updater/backend/pkg/types"
"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors"
"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile"
cvm "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cvm/v20170312"
tke "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/tke/v20180525"
)
func init() {
factory := &cluster_metadata_service.CloudMetaResolverFactory{FactoryFunc: NewTencentResolver}
if err := cluster_metadata_service.RegisterCloudResolverFactory(types.InfraVendor_Tencent, factory); err != nil {
log.Fatalln(err)
}
}
type Resolver struct {
credProvider common.Provider
tcAccountId string
}
func NewTencentResolver(cred credentials.CredResolver, accountId string) (cluster_metadata_service.ClusterMetadataResolver, error) {
rawProvider, _, err := cred.GetSdkConfig(context.TODO())
if err != nil {
return nil, err
}
return &Resolver{
credProvider: rawProvider.(common.Provider),
tcAccountId: accountId,
}, nil
}
func (r *Resolver) GetResolverDescription() string {
return fmt.Sprintf("Tencent/%s", r.tcAccountId)
}
func (r *Resolver) ListClusters() ([]*protos.ClusterMetadata, error) {
cred, err := r.credProvider.GetCredential()
if err != nil {
return nil, err
}
cvmClient, err := cvm.NewClient(cred, types.TENCENT_DEFAULT_REGION, profile.NewClientProfile())
if err != nil {
return nil, err
}
regionsOut, err := cvmClient.DescribeRegions(cvm.NewDescribeRegionsRequest())
if err != nil {
return nil, err
}
var futures []<-chan listTkeFutureOut
for _, region := range regionsOut.Response.RegionSet {
if *region.RegionState == "AVAILABLE" {
future := r.listTkeFuture(*region.Region)
futures = append(futures, future)
}
}
var clusters []*protos.ClusterMetadata
for _, future := range futures {
out := <-future
if out.err != nil {
return nil, out.err
}
clusters = append(clusters, out.clusters...)
}
return clusters, nil
}
type listTkeFutureOut struct {
clusters []*protos.ClusterMetadata
err error
}
func (r *Resolver) listTkeFuture(region string) <-chan listTkeFutureOut {
c := make(chan listTkeFutureOut, 1)
go func() {
clusters, err := r.listTke(region)
c <- listTkeFutureOut{
clusters: clusters,
err: err,
}
close(c)
}()
return c
}
func (r *Resolver) listTke(region string) ([]*protos.ClusterMetadata, error) {
cred, err := r.credProvider.GetCredential()
if err != nil {
return nil, err
}
tkeClient, err := tke.NewClient(cred, region, profile.NewClientProfile())
if err != nil {
return nil, err
}
clustersOut, err := tkeClient.DescribeClusters(tke.NewDescribeClustersRequest())
if err != nil {
if tcErr, ok := err.(*errors.TencentCloudSDKError); ok && tcErr.GetCode() == "UnsupportedRegion" {
fmt.Printf("Skip TKE/DescribeClusters to accountId:%s, region:%s, Reason: UnsupportedRegion\n", r.tcAccountId, region)
return []*protos.ClusterMetadata{}, nil
}
return nil, fmt.Errorf("error occurred when trying TKE/DescribeClusters accountId:%s region:%s, error:%s", r.tcAccountId, region, err.Error())
}
var clusters []*protos.ClusterMetadata
for _, cluster := range clustersOut.Response.Clusters {
meta := &protos.ClusterMetadata{
ClusterName: *cluster.ClusterName,
CredResolverId: r.tcAccountId,
ClusterTags: map[string]string{},
}
meta.ClusterTags[types.KnownClusterTag_ClusterId.String()] = *cluster.ClusterId
for _, tagSpec := range cluster.TagSpecification {
for _, tag := range tagSpec.Tags {
meta.ClusterTags[*tag.Key] = *tag.Value
}
}
if _, ok := meta.ClusterTags[types.KnownClusterTag_ClusterRegion.String()]; !ok {
meta.ClusterTags[types.KnownClusterTag_ClusterRegion.String()] = region
}
if _, ok := meta.ClusterTags[types.KnownClusterTag_ClusterEngine.String()]; !ok {
meta.ClusterTags[types.KnownClusterTag_ClusterEngine.String()] = types.KnownClusterEngine_TKE.String()
}
clusters = append(clusters, meta)
}
return clusters, nil
}