optimize repeatedly specifying EIP use case (#239)

pkg/cloudprovider/huaweicloud/sharedloadbalancer.go

@@ -240,17 +240,48 @@ func (l *SharedLoadBalancer) EnsureLoadBalancer(ctx context.Context, clusterName
 
 func (l *SharedLoadBalancer) createOrAssociateEIP(loadbalancer *elbmodel.LoadbalancerResp, service *v1.Service) (string, error) {
 	var err error
+	specifiedEip := true
+	instance, err := l.sharedELBClient.Show(loadbalancer.Id)
+	if err != nil {
+		return "", status.Errorf(codes.Internal, "rollback：failed to query detail of ELB instance, error: %s", err)
+	}
+
 	eipID := getStringFromSvsAnnotation(service, ElbEipID, "")
 	if eipID == "" {
+		opts, err := parseEIPAutoCreateOptions(service)
+		if err != nil || opts == nil {
+			return "", err
+		}
+
+		if len(instance.PublicIPs) > 0 {
+			klog.Infof("the ELB has bound EIP: %s / %s, skip creating EIP", instance.PublicIPs[0].Address, instance.PublicIPs[0].ID)
+			return instance.PublicIPs[0].Address, nil
+		}
+
 		eipID, err = l.createEIP(service)
 		if err != nil {
 			return "", status.Errorf(codes.Internal, "rollback：failed to create EIP, delete ELB instance, error: %s", err)
 		}
+		specifiedEip = false
 	}
 	if eipID == "" {
 		return "", nil
 	}
 
+	if specifiedEip && len(instance.PublicIPs) > 0 {
+		if instance.PublicIPs[0].ID == eipID {
+			klog.Infof("the ELB has been bound to the specified EIP %s", eipID)
+			return instance.PublicIPs[0].Address, nil
+		}
+
+		// remove bound EIP
+		klog.Infof("remove the bound EIP %s and the specified will be used: %s", instance.PublicIPs[0].ID, eipID)
+		err = l.eipClient.Unbind(instance.PublicIPs[0].ID)
+		if err != nil {
+			return "", status.Errorf(codes.Internal, "rollback：failed to unbind EIP from ELB instance, error: %s", err)
+		}
+	}
+
 	eip, err := l.eipClient.Get(eipID)
 	if err != nil {
 		return "", status.Errorf(codes.Internal, "rollback：failed to get EIP, delete ELB instance, error: %s", err)

pkg/cloudprovider/huaweicloud/wrapper/model/elb_meta.go

@@ -0,0 +1,99 @@
+package model
+
+import (
+	"net/http"
+
+	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/def"
+)
+
+func GenReqDefForShowLoadbalancer() *def.HttpRequestDef {
+	reqDefBuilder := def.NewHttpRequestDefBuilder().
+		WithMethod(http.MethodGet).
+		WithPath("/v2/{project_id}/elb/loadbalancers/{loadbalancer_id}").
+		WithResponse(new(ShowLoadbalancerResponse)).
+		WithContentType("application/json")
+
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("LoadbalancerId").
+		WithJsonTag("loadbalancer_id").
+		WithLocationType(def.Path))
+
+	requestDef := reqDefBuilder.Build()
+	return requestDef
+}
+
+func GenReqDefForListLoadbalancers() *def.HttpRequestDef {
+	reqDefBuilder := def.NewHttpRequestDefBuilder().
+		WithMethod(http.MethodGet).
+		WithPath("/v2/{project_id}/elb/loadbalancers").
+		WithResponse(new(ListLoadbalancersRsp)).
+		WithContentType("application/json")
+
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("Limit").
+		WithJsonTag("limit").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("Marker").
+		WithJsonTag("marker").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("PageReverse").
+		WithJsonTag("page_reverse").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("Id").
+		WithJsonTag("id").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("Description").
+		WithJsonTag("description").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("Name").
+		WithJsonTag("name").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("OperatingStatus").
+		WithJsonTag("operating_status").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("ProvisioningStatus").
+		WithJsonTag("provisioning_status").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("VipAddress").
+		WithJsonTag("vip_address").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("VipPortId").
+		WithJsonTag("vip_port_id").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("VipSubnetId").
+		WithJsonTag("vip_subnet_id").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("VpcId").
+		WithJsonTag("vpc_id").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("EnterpriseProjectId").
+		WithJsonTag("enterprise_project_id").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("AdminStateUp").
+		WithJsonTag("admin_state_up").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("MemberAddress").
+		WithJsonTag("member_address").
+		WithLocationType(def.Query))
+	reqDefBuilder.WithRequestField(def.NewFieldDef().
+		WithName("MemberDeviceId").
+		WithJsonTag("member_device_id").
+		WithLocationType(def.Query))
+
+	requestDef := reqDefBuilder.Build()
+	return requestDef
+}

pkg/cloudprovider/huaweicloud/wrapper/model/model_list_loadbalancers_rsp.go

@@ -0,0 +1,39 @@
+// nolint: golint
+package model
+
+import (
+	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/utils"
+
+	"strings"
+)
+
+// Response Object
+type ListLoadbalancersRsp struct {
+
+	// 负载均衡器对象列表
+	Loadbalancers  *[]Loadbalancer `json:"loadbalancers,omitempty"`
+	HttpStatusCode int             `json:"-"`
+}
+
+func (o ListLoadbalancersRsp) String() string {
+	data, err := utils.Marshal(o)
+	if err != nil {
+		return "ListLoadbalancersResponse struct{}"
+	}
+
+	return strings.Join([]string{"ListLoadbalancersResponse", string(data)}, " ")
+}
+
+type ShowLoadbalancerResponse struct {
+	Loadbalancer   *Loadbalancer `json:"loadbalancer,omitempty"`
+	HttpStatusCode int           `json:"-"`
+}
+
+func (o ShowLoadbalancerResponse) String() string {
+	data, err := utils.Marshal(o)
+	if err != nil {
+		return "ShowLoadbalancerResponse struct{}"
+	}
+
+	return strings.Join([]string{"ShowLoadbalancerResponse", string(data)}, " ")
+}

pkg/cloudprovider/huaweicloud/wrapper/model/model_loadbalancer.go

@@ -0,0 +1,187 @@
+// nolint: golint
+package model
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/utils"
+
+	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/converter"
+	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v2/model"
+)
+
+// 负载均衡器响应体
+type Loadbalancer struct {
+
+	// 负载均衡器ID
+	Id string `json:"id"`
+
+	// 负载均衡器所在的项目ID。
+	TenantId string `json:"tenant_id"`
+
+	// 负载均衡器名称。
+	Name string `json:"name"`
+
+	// 负载均衡器的描述信息
+	Description string `json:"description"`
+
+	// 负载均衡器所在的子网的IPv4网络ID。仅支持内网类型。
+	VipSubnetId string `json:"vip_subnet_id"`
+
+	// 负载均衡器虚拟IP对应的端口ID
+	VipPortId string `json:"vip_port_id"`
+
+	// 负载均衡器的虚拟IP。
+	VipAddress string `json:"vip_address"`
+
+	// 负载均衡器关联的监听器ID的列表
+	Listeners []model.ResourceList `json:"listeners"`
+
+	// 负载均衡器关联的后端云服务器组ID的列表。
+	Pools []model.ResourceList `json:"pools"`
+
+	// 负载均衡器的供应者名称。只支持vlb
+	Provider string `json:"provider"`
+
+	// 负载均衡器的操作状态
+	OperatingStatus LoadbalancerOperatingStatus `json:"operating_status"`
+
+	// 负载均衡器的配置状态
+	ProvisioningStatus LoadbalancerProvisioningStatus `json:"provisioning_status"`
+
+	// 负载均衡器的管理状态。只支持设定为true，该字段的值无实际意义。
+	AdminStateUp bool `json:"admin_state_up"`
+
+	// 负载均衡器的创建时间
+	CreatedAt string `json:"created_at"`
+
+	// 负载均衡器的更新时间
+	UpdatedAt string `json:"updated_at"`
+
+	// 负载均衡器的企业项目ID。
+	EnterpriseProjectId string `json:"enterprise_project_id"`
+
+	// 负载均衡器所在的项目ID。
+	ProjectId string `json:"project_id"`
+
+	// 负载均衡器的标签列表
+	Tags []string `json:"tags"`
+
+	PublicIPs []PublicIP `json:"publicips"`
+}
+
+func (o Loadbalancer) String() string {
+	data, err := utils.Marshal(o)
+	if err != nil {
+		return "Loadbalancer struct{}"
+	}
+
+	return strings.Join([]string{"Loadbalancer", string(data)}, " ")
+}
+
+type LoadbalancerOperatingStatus struct {
+	value string
+}
+
+type LoadbalancerOperatingStatusEnum struct {
+	ONLINE     LoadbalancerOperatingStatus
+	OFFLINE    LoadbalancerOperatingStatus
+	DEGRADED   LoadbalancerOperatingStatus
+	DISABLED   LoadbalancerOperatingStatus
+	NO_MONITOR LoadbalancerOperatingStatus
+}
+
+func GetLoadbalancerOperatingStatusEnum() LoadbalancerOperatingStatusEnum {
+	return LoadbalancerOperatingStatusEnum{
+		ONLINE: LoadbalancerOperatingStatus{
+			value: "ONLINE",
+		},
+		OFFLINE: LoadbalancerOperatingStatus{
+			value: "OFFLINE",
+		},
+		DEGRADED: LoadbalancerOperatingStatus{
+			value: "DEGRADED",
+		},
+		DISABLED: LoadbalancerOperatingStatus{
+			value: "DISABLED",
+		},
+		NO_MONITOR: LoadbalancerOperatingStatus{
+			value: "NO_MONITOR",
+		},
+	}
+}
+
+func (c LoadbalancerOperatingStatus) Value() string {
+	return c.value
+}
+
+func (c LoadbalancerOperatingStatus) MarshalJSON() ([]byte, error) {
+	return utils.Marshal(c.value)
+}
+
+func (c *LoadbalancerOperatingStatus) UnmarshalJSON(b []byte) error {
+	myConverter := converter.StringConverterFactory("string")
+	if myConverter != nil {
+		val, err := myConverter.CovertStringToInterface(strings.Trim(string(b[:]), "\""))
+		if err == nil {
+			c.value = val.(string)
+			return nil
+		}
+		return err
+	} else {
+		return errors.New("convert enum data to string error")
+	}
+}
+
+type LoadbalancerProvisioningStatus struct {
+	value string
+}
+
+type LoadbalancerProvisioningStatusEnum struct {
+	ACTIVE         LoadbalancerProvisioningStatus
+	PENDING_CREATE LoadbalancerProvisioningStatus
+	ERROR          LoadbalancerProvisioningStatus
+}
+
+func GetLoadbalancerProvisioningStatusEnum() LoadbalancerProvisioningStatusEnum {
+	return LoadbalancerProvisioningStatusEnum{
+		ACTIVE: LoadbalancerProvisioningStatus{
+			value: "ACTIVE",
+		},
+		PENDING_CREATE: LoadbalancerProvisioningStatus{
+			value: "PENDING_CREATE",
+		},
+		ERROR: LoadbalancerProvisioningStatus{
+			value: "ERROR",
+		},
+	}
+}
+
+func (c LoadbalancerProvisioningStatus) Value() string {
+	return c.value
+}
+
+func (c LoadbalancerProvisioningStatus) MarshalJSON() ([]byte, error) {
+	return utils.Marshal(c.value)
+}
+
+func (c *LoadbalancerProvisioningStatus) UnmarshalJSON(b []byte) error {
+	myConverter := converter.StringConverterFactory("string")
+	if myConverter != nil {
+		val, err := myConverter.CovertStringToInterface(strings.Trim(string(b[:]), "\""))
+		if err == nil {
+			c.value = val.(string)
+			return nil
+		}
+		return err
+	} else {
+		return errors.New("convert enum data to string error")
+	}
+}
+
+type PublicIP struct {
+	ID        string `json:"publicip_id"`
+	Address   string `json:"publicip_address"`
+	IPVersion int    `json:"ip_version"`
+}