external-dns/provider/tencentcloud/tencent_cloud.go
misakazhou a2e7ffc36a add the provider for the tencent cloud.
Signed-off-by: misakazhou <misakazhou@tencent.com>
2022-09-15 16:42:39 +08:00

123 lines
3.5 KiB
Go

/*
Copyright 2022 The Kubernetes 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 tencentcloud
import (
"context"
"encoding/json"
"fmt"
"os"
"strings"
log "github.com/sirupsen/logrus"
"sigs.k8s.io/external-dns/endpoint"
"sigs.k8s.io/external-dns/plan"
"sigs.k8s.io/external-dns/provider"
"sigs.k8s.io/external-dns/provider/tencentcloud/cloudapi"
)
const (
TencentCloudEmptyPrefix = "@"
DefaultAPIRate = 9
)
func NewTencentCloudProvider(domainFilter endpoint.DomainFilter, zoneIDFilter provider.ZoneIDFilter, configFile string, zoneType string, dryRun bool) (*TencentCloudProvider, error) {
cfg := tencentCloudConfig{}
if configFile != "" {
contents, err := os.ReadFile(configFile)
if err != nil {
return nil, fmt.Errorf("failed to read Tencent Cloud config file '%s': %w", configFile, err)
}
err = json.Unmarshal(contents, &cfg)
if err != nil {
return nil, fmt.Errorf("failed to parse Tencent Cloud config file '%s': %w", configFile, err)
}
}
var apiService cloudapi.TencentAPIService = cloudapi.NewTencentAPIService(cfg.RegionId, DefaultAPIRate, cfg.SecretId, cfg.SecretKey, cfg.InternetEndpoint)
if dryRun {
apiService = cloudapi.NewReadOnlyAPIService(cfg.RegionId, DefaultAPIRate, cfg.SecretId, cfg.SecretKey, cfg.InternetEndpoint)
}
tencentCloudProvider := &TencentCloudProvider{
domainFilter: domainFilter,
zoneIDFilter: zoneIDFilter,
apiService: apiService,
vpcID: cfg.VPCId,
privateZone: zoneType == "private",
}
return tencentCloudProvider, nil
}
type TencentCloudProvider struct {
provider.BaseProvider
logger *log.Logger
apiService cloudapi.TencentAPIService
domainFilter endpoint.DomainFilter
zoneIDFilter provider.ZoneIDFilter // Private Zone only
vpcID string // Private Zone only
privateZone bool
}
type tencentCloudConfig struct {
RegionId string `json:"regionId" yaml:"regionId"`
SecretId string `json:"secretId" yaml:"secretId"`
SecretKey string `json:"secretKey" yaml:"secretKey"`
VPCId string `json:"vpcId" yaml:"vpcId"`
InternetEndpoint bool `json:"internetEndpoint" yaml:"internetEndpoint"`
}
func (p *TencentCloudProvider) Records(ctx context.Context) ([]*endpoint.Endpoint, error) {
if p.privateZone {
return p.privateZoneRecords()
}
return p.dnsRecords()
}
func (p *TencentCloudProvider) ApplyChanges(ctx context.Context, changes *plan.Changes) error {
if !changes.HasChanges() {
return nil
}
log.Infof("apply changes. %s", cloudapi.JsonWrapper(changes))
if p.privateZone {
return p.applyChangesForPrivateZone(changes)
}
return p.applyChangesForDNS(changes)
}
func getSubDomain(domain string, endpoint *endpoint.Endpoint) string {
name := endpoint.DNSName
name = name[:len(name)-len(domain)]
name = strings.TrimSuffix(name, ".")
if name == "" {
return TencentCloudEmptyPrefix
}
return name
}
func getDnsDomain(subDomain string, domain string) string {
if subDomain == TencentCloudEmptyPrefix {
return domain
}
return subDomain + "." + domain
}