集群中自动设置CNAME记录如果已经存在，则跳过

internal/db/models/node_cluster_model_ext.go

@@ -13,17 +13,9 @@ import (
 func (this *NodeCluster) DecodeDNSConfig() (*dnsconfigs.ClusterDNSConfig, error) {
 	if len(this.Dns) == 0 {
 		// 一定要返回一个默认的值，防止产生nil
-		return &dnsconfigs.ClusterDNSConfig{
-			NodesAutoSync:    false,
-			ServersAutoSync:  false,
-			CNAMEAsDomain:    true,
-			IncludingLnNodes: true,
-		}, nil
-	}
-	var dnsConfig = &dnsconfigs.ClusterDNSConfig{
-		CNAMEAsDomain:    true,
-		IncludingLnNodes: true,
+		return dnsconfigs.DefaultClusterDNSConfig(), nil
 	}
+	var dnsConfig = dnsconfigs.DefaultClusterDNSConfig()
 	err := json.Unmarshal(this.Dns, &dnsConfig)
 	if err != nil {
 		return nil, err

internal/rpc/services/service_dns_domain.go

@@ -12,6 +12,7 @@ import (
 	"github.com/TeaOSLab/EdgeAPI/internal/goman"
 	"github.com/TeaOSLab/EdgeAPI/internal/utils"
 	"github.com/TeaOSLab/EdgeAPI/internal/utils/numberutils"
+	"github.com/TeaOSLab/EdgeCommon/pkg/dnsconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
 	"github.com/iwind/TeaGo/dbs"
@@ -436,22 +437,22 @@ func (this *DNSDomainService) findClusterDNSChanges(cluster *models.NodeCluster,
 	var clusterId = int64(cluster.Id)
 	var clusterDnsName = cluster.DnsName
 	var clusterDomain = clusterDnsName + "." + domainName
-	var dnsConfig, _ = cluster.DecodeDNSConfig()
+	dnsConfig, err := cluster.DecodeDNSConfig()
+	if err != nil {
+		return nil, nil, nil, 0, 0, false, false, err
+	}
+	if dnsConfig == nil {
+		dnsConfig = dnsconfigs.DefaultClusterDNSConfig()
+	}
 
 	var tx = this.NullTx()
 
 	// 自动设置的cname记录
-	var cnameRecords = []string{}
 	var ttl int32
-	if len(cluster.Dns) > 0 {
-		dnsConfig, _ := cluster.DecodeDNSConfig()
-		if dnsConfig != nil {
-			cnameRecords = dnsConfig.CNAMERecords
+	var cnameRecords = dnsConfig.CNAMERecords
 	if dnsConfig.TTL > 0 {
 		ttl = dnsConfig.TTL
 	}
-		}
-	}
 
 	// 节点域名
 	nodes, err := models.SharedNodeDAO.FindAllEnabledNodesDNSWithClusterId(tx, clusterId, true, dnsConfig != nil && dnsConfig.IncludingLnNodes)
@@ -556,7 +557,7 @@ func (this *DNSDomainService) findClusterDNSChanges(cluster *models.NodeCluster,
 	// 新增的域名
 	var serverDNSNames = []string{}
 	for _, server := range servers {
-		dnsName := server.DnsName
+		var dnsName = server.DnsName
 		if len(dnsName) == 0 {
 			return nil, nil, nil, 0, 0, false, false, errors.New("server '" + numberutils.FormatInt64(int64(server.Id)) + "' 'dnsName' should not empty")
 		}
@@ -582,6 +583,11 @@ func (this *DNSDomainService) findClusterDNSChanges(cluster *models.NodeCluster,
 
 	// 自动设置的CNAME
 	for _, cnameRecord := range cnameRecords {
+		// 如果记录已存在，则跳过
+		if lists.ContainsString(serverDNSNames, cnameRecord) {
+			continue
+		}
+
 		serverDNSNames = append(serverDNSNames, cnameRecord)
 		record, ok := serverRecordsMap[cnameRecord]
 		if !ok {

internal/tasks/dns_task_executor.go

@@ -441,9 +441,9 @@ func (this *DNSTaskExecutor) doCluster(taskId int64, clusterId int64) error {
 	}
 
 	// 新增的域名
-	serverDNSNames := []string{}
+	var serverDNSNames = []string{}
 	for _, server := range servers {
-		dnsName := server.DnsName
+		var dnsName = server.DnsName
 		if len(dnsName) == 0 {
 			continue
 		}
@@ -471,6 +471,11 @@ func (this *DNSTaskExecutor) doCluster(taskId int64, clusterId int64) error {
 		cnameRecords = dnsConfig.CNAMERecords
 	}
 	for _, cnameRecord := range cnameRecords {
+		// 如果记录已存在，则跳过
+		if lists.ContainsString(serverDNSNames, cnameRecord) {
+			continue
+		}
+
 		serverDNSNames = append(serverDNSNames, cnameRecord)
 		_, ok := serverRecordsMap[cnameRecord]
 		if !ok {