Apply for EIP

• Apply for an EIP, which can be used to bind to any BCC instance.
• Real name authentication is required for creation of EIP, if you fail to pass real name authentication, you can go to real name authentication under security authentication in [Baidu Open Cloud official website console](https://console.bce.baidu.com/qualify/? _=1567871861163#/qualify/result) for authentication.

args := &CreateEipArgs{ 
    Name:            "sdk-eip", 
    BandWidthInMbps: 1, 
    Billing: &Billing{ 
        PaymentTiming: "Postpaid", 
        BillingMethod: "ByTraffic", 
    }, 
    ClientToken: getClientToken(), 
} 
result, err := EIP_CLIENT.CreateEip(args) 

EIP_ADDRESS = result.Eip 

Capacity Expansion and Reduction of EIP Bandwidth

• Used for the bandwidth capacity expansion and reduction of specified EIP.
• Check whether EIP capacity expansion and reduction state is completed by querying EIP list.

args := &ResizeEipArgs{ 
    NewBandWidthInMbps: 2, 
    ClientToken:        getClientToken(), 
} 
err := EIP_CLIENT.ResizeEip(EIP_ADDRESS, args) 
  

Bind EIP

• Bind EIP to an instance.
• Only the EIP in available state supports binding operation.
• The bound instance cannot have any existing EIP binding relationship.
• The bound instance cannot be in arrearage state.

args := &BindEipArgs{ 
    InstanceType: "BCC", 
    InstanceId:   BCC_TEST_ID, 
    ClientToken:  getClientToken(), 
} 
err := EIP_CLIENT.BindEip(EIP_ADDRESS, args) 

Unbind EIP

• Unbind the specified EIP.
• The unbound EIP must have been bound to any instance.

err := EIP_CLIENT.UnBindEip(EIP_ADDRESS, getClientToken()) 

Release EIP

• Release the specified EIP, and the released EIP cannot be recovered.
• If EIP is bound to any instance, it can be released before unbinding.

err := EIP_CLIENT.DeleteEip(EIP_ADDRESS, getClientToken()) 

Query EIP List

• You can query EIP list according to multiple conditions.
• If it is only needed to query the details of a single EIP, you only need to provide eip parameters.
• If you only need to query the EIP bound to a specified instance, you only need to provide instanceType parameter.
• If you only need to query the details of EIP bound to a specified instance, you only need to provide instanceType and instanceId parameters.
• If you do not provide the query conditions, all EIPs are overwritten by default.
• The returned result is the query result of intersection of multiple conditions, i.e. when multiple conditions are provided, EIP meeting all conditions simultaneously is returned.
• The query result above supports marker paging, with paging size of 1,000 by default, which can be specified via maxKeys parameter.

args := &ListEipArgs{} 
result, err := EIP_CLIENT.ListEip(args) 
ExpectEqual(t.Errorf, nil, err) 
for _, e := range result.EipList { 
    if e.Eip == EIP_ADDRESS { 
        ExpectEqual(t.Errorf, "Postpaid", e.PaymentTiming) 
        ExpectEqual(t.Errorf, "ByTraffic", e.BillingMethod) 
        ExpectEqual(t.Errorf, 2, e.BandWidthInMbps) 
    } 
} 

EIP Renewal

• For the renewal operation of specified EIP, extend the expiration time.
• No renewal operation can be conducted during EIP capacity expansion and reduction.

args := &PurchaseReservedEipArgs{ 
    Billing: &Billing{ 
        Reservation: &Reservation{ 
            ReservationLength:   1, 
            ReservationTimeUnit: "month", 
        }, 
    }, 
} 
err := EIP_CLIENT.PurchaseReservedEip(EIP_ADDRESS, args) 
ExpectEqual(t.Errorf, nil, err)