fix(mongodb): 优化副本集获取primary创建DBA用户，缩容shard节点数提供获取下架机器信息函数 TencentBlu…

…eKing#8515

dbm-services/mongodb/db-tools/dbactuator/pkg/atomjobs/atommongodb/add_user.go

@@ -105,8 +105,16 @@ func (u *AddUser) Init(runtime *jobruntime.JobGenericRuntime) error {
 			info, err = common.AuthGetPrimaryInfo(u.Mongo, u.ConfParams.AdminUsername,
 				u.ConfParams.AdminPassword, u.ConfParams.IP, u.ConfParams.Port)
 			if err != nil {
-				u.runtime.Logger.Error(fmt.Sprintf(
-					"get primary db info of addUser fail, error:%s", err))
+				u.runtime.Logger.Error("get primary db info of addUser fail, error:%s", err)
+				return fmt.Errorf("get primary db info of addUser fail, error:%s", err)
+			}
+			getInfo := strings.Split(info, ":")
+			u.PrimaryIP = getInfo[0]
+			u.PrimaryPort, _ = strconv.Atoi(getInfo[1])
+		} else if u.ConfParams.AdminUsername == "" && u.ConfParams.AdminPassword == "" {
+			info, err = common.CreateDBAUserGetPrimaryInfo(u.Mongo, u.ConfParams.Port)
+			if err != nil {
+				u.runtime.Logger.Error("get primary db info of addUser fail, error:%s", err)
 				return fmt.Errorf("get primary db info of addUser fail, error:%s", err)
 			}
 			getInfo := strings.Split(info, ":")

dbm-services/mongodb/db-tools/dbactuator/pkg/common/mongo_common.go

@@ -257,6 +257,35 @@ func AuthGetPrimaryInfo(mongoBin string, username string, password string, ip st
 	}
 }
 
+// CreateDBAUserGetPrimaryInfo 创建dba用户获取primary节点信息
+func CreateDBAUserGetPrimaryInfo(mongoBin string, port int) (string,
+	error) {
+	// 超时时间
+	timeout := time.After(20 * time.Second)
+	for {
+		select {
+		case <-timeout:
+			return "", fmt.Errorf("get primary info timeout")
+		default:
+			cmd := fmt.Sprintf(
+				"%s --host %s --port %d  --quiet --eval \"rs.isMaster().primary\"", mongoBin, "127.0.0.1", port)
+			result, err := util.RunBashCmd(
+				cmd,
+				"", nil,
+				60*time.Second)
+			if err != nil {
+				return "", err
+			}
+			if strings.Replace(result, "\n", "", -1) == "" {
+				time.Sleep(1 * time.Second)
+				continue
+			}
+			primaryInfo := strings.Replace(result, "\n", "", -1)
+			return primaryInfo, nil
+		}
+	}
+}
+
 // NoAuthGetPrimaryInfo 获取primary节点信息
 func NoAuthGetPrimaryInfo(mongoBin string, ip string, port int) (string, error) {
 	// 超时时间

dbm-ui/backend/flow/utils/mongodb/shard_reduce_node_get_host.py

@@ -0,0 +1,152 @@
+from backend.db_meta.enums import MachineType
+from backend.db_meta.enums.cluster_type import ClusterType
+from backend.db_meta.enums.instance_role import InstanceRole
+from backend.db_meta.enums.type_maps import MachineTypeInstanceRoleMap
+from backend.db_meta.models import Machine
+from backend.flow.utils.mongodb.mongodb_repo import MongoRepository
+
+
+def get_cluster_instance_info(cluster_id: int) -> dict:
+    """获取集群实例信息"""
+
+    cluster_instance_info = {}
+    cluster_info = MongoRepository().fetch_one_cluster(withDomain=True, id=cluster_id)
+    cluster_instance_info["bk_cloud_id"] = cluster_info.bk_cloud_id
+    nodes = []
+    if cluster_info.cluster_type == ClusterType.MongoReplicaSet.value:
+        backup_node = {}
+        for member in cluster_info.get_shards()[0].members:
+            if member.role == InstanceRole.MONGO_BACKUP.value:
+                backup_node = {
+                    "ip": member.ip,
+                    "port": int(member.port),
+                    "bk_cloud_id": member.bk_cloud_id,
+                    "domain": member.domain,
+                    "instance_role": member.role,
+                }
+                continue
+            nodes.append(
+                {
+                    "ip": member.ip,
+                    "port": int(member.port),
+                    "bk_cloud_id": member.bk_cloud_id,
+                    "domain": member.domain,
+                    "instance_role": member.role,
+                }
+            )
+        nodes.append(backup_node)
+        cluster_instance_info["nodes"] = nodes
+    elif cluster_info.cluster_type == ClusterType.MongoShardedCluster.value:
+        mongos = cluster_info.get_mongos()
+        shards = cluster_info.get_shards()
+        config = cluster_info.get_config()
+        mongos_nodes = []
+        shards_nodes = []
+        config_nodes = []
+        for mongo in mongos:
+            mongos_nodes.append(
+                {"ip": mongo.ip, "port": int(mongo.port), "bk_cloud_id": mongo.bk_cloud_id, "domain": mongo.domain}
+            )
+        for shard in shards:
+            shard_info = {"shard": shard.set_name}
+            nodes = []
+            backup_node = {}
+            for member in shard.members:
+                if member.role == InstanceRole.MONGO_BACKUP.value:
+                    backup_node = {
+                        "ip": member.ip,
+                        "port": int(member.port),
+                        "bk_cloud_id": member.bk_cloud_id,
+                        "instance_role": member.role,
+                    }
+                    continue
+                nodes.append(
+                    {
+                        "ip": member.ip,
+                        "port": int(member.port),
+                        "bk_cloud_id": member.bk_cloud_id,
+                        "instance_role": member.role,
+                    }
+                )
+            nodes.append(backup_node)
+            shard_info["nodes"] = nodes
+            shards_nodes.append(shard_info)
+        backup_node = {}
+        for member in config.members:
+            if member.role == InstanceRole.MONGO_BACKUP.value:
+                backup_node = {
+                    "ip": member.ip,
+                    "port": int(member.port),
+                    "bk_cloud_id": member.bk_cloud_id,
+                    "instance_role": member.role,
+                }
+                continue
+            config_nodes.append(
+                {
+                    "ip": member.ip,
+                    "port": int(member.port),
+                    "bk_cloud_id": member.bk_cloud_id,
+                    "instance_role": member.role,
+                }
+            )
+        config_nodes.append(backup_node)
+        cluster_instance_info["mongos_nodes"] = mongos_nodes
+        cluster_instance_info["shards_nodes"] = shards_nodes
+        cluster_instance_info["config_nodes"] = config_nodes
+    return cluster_instance_info
+
+
+def get_hosts_reduce_node(ticket_data: dict) -> list:
+    """缩容shard节点数获取下架机器"""
+
+    # 实例角色信息
+    instance_role = MachineTypeInstanceRoleMap[MachineType.MONGODB]
+    # 获取下架机器
+    replicaset_hosts = []
+    cluster_hosts = []
+    hosts = []
+    for replicaset_info in ticket_data["infos"][ClusterType.MongoReplicaSet.value]:
+        reduce_shard_nodes = replicaset_info["reduce_shard_nodes"]
+        replicaset_hosts_set = set()
+        bk_cloud_id = ""
+        for cluster_id in replicaset_info["cluster_ids"]:
+            cluster_instance_info = get_cluster_instance_info(cluster_id=cluster_id)
+            current_node_num = len(cluster_instance_info["nodes"])
+            for index in range(reduce_shard_nodes):
+                role = instance_role[current_node_num - 2 - index]
+                for node in cluster_instance_info["nodes"]:
+                    if node["instance_role"] == role:
+                        replicaset_hosts_set.add(node["ip"])
+                        bk_cloud_id = node["bk_cloud_id"]
+                        break
+        for ip in replicaset_hosts_set:
+            replicaset_hosts.append({"ip": ip, "bk_cloud_id": bk_cloud_id})
+    for cluster_info in ticket_data["infos"][ClusterType.MongoShardedCluster.value]:
+        cluster_hosts_set = set()
+        bk_cloud_id = ""
+        reduce_shard_nodes = cluster_info["reduce_shard_nodes"]
+        cluster_instance_info = get_cluster_instance_info(cluster_id=cluster_info["cluster_id"])
+        # 所有shard的实例对应关系
+        shards_instance_relationships = {}
+        for shard in cluster_instance_info["shards_nodes"]:
+            shards_instance_relationships[shard["shard"]] = []
+        for shard in cluster_instance_info["shards_nodes"]:
+            current_node_num = len(shard["nodes"])
+            for index in range(reduce_shard_nodes):
+                role = instance_role[current_node_num - 2 - index]
+                for node in shard["nodes"]:
+                    if node["instance_role"] == role:
+                        bk_cloud_id = node["bk_cloud_id"]
+                        cluster_hosts_set.add(node["ip"])
+        for ip in cluster_hosts_set:
+            cluster_hosts.append({"ip": ip, "bk_cloud_id": bk_cloud_id})
+    for host in replicaset_hosts + cluster_hosts:
+        machine = Machine.objects.get(ip=host["ip"], bk_cloud_id=host["bk_cloud_id"])
+        hosts.append(
+            {
+                "ip": host["ip"],
+                "bk_host_id": machine.bk_host_id,
+                "bk_cloud_id": host["bk_cloud_id"],
+            }
+        )
+    return hosts