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resource_ip_address_reservation.go
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resource_ip_address_reservation.go
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package ddcloud
import (
"fmt"
"github.com/DimensionDataResearch/dd-cloud-compute-terraform/retry"
"log"
"github.com/DimensionDataResearch/dd-cloud-compute-terraform/validators"
"github.com/DimensionDataResearch/go-dd-cloud-compute/compute"
"github.com/hashicorp/terraform/helper/schema"
)
const (
resourceKeyIPAddressReservationVLANID = "vlan"
resourceKeyIPAddressReservationAddress = "address"
resourceKeyIPAddressReservationAddressType = "address_type"
resourceKeyIPAddressReservationDescription = "description"
addressTypeIPv4 = "ipv4"
addressTypeIPv6 = "ipv6"
)
func resourceIPAddressReservation() *schema.Resource {
return &schema.Resource{
Create: resourceIPAddressReservationCreate,
Read: resourceIPAddressReservationRead,
Delete: resourceIPAddressReservationDelete,
Schema: map[string]*schema.Schema{
resourceKeyIPAddressReservationVLANID: &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
Description: "The Id of the VLAN in which the IP address is reserved.",
},
resourceKeyIPAddressReservationAddress: &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
Description: "The reserved IP address.",
},
resourceKeyIPAddressReservationDescription: &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Description: "The description reserved IP address.",
},
resourceKeyIPAddressReservationAddressType: &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
Description: "The reserved IP address type ('ipv4' or 'ipv6').",
ValidateFunc: validators.StringIsOneOf("IP address type",
addressTypeIPv4,
addressTypeIPv6,
),
},
},
}
}
func resourceIPAddressReservationExists(data *schema.ResourceData, provider interface{}) (exists bool, err error) {
vlanID := data.Get(resourceKeyIPAddressReservationVLANID).(string)
address := data.Get(resourceKeyIPAddressReservationAddress).(string)
addressType := data.Get(resourceKeyIPAddressReservationAddressType).(string)
description, _ := data.GetOk(resourceKeyIPAddressReservationDescription)
log.Printf("Check if Reserved IP address:'%s' description:'%s' type:'%s') exists in VLAN '%s'...",
address,
description,
addressType,
vlanID,
)
providerState := provider.(*providerState)
var reservedIPAddresses map[string]compute.ReservedIPAddress
reservedIPAddresses, err = getReservedIPAddresses(vlanID, addressType, providerState)
if err != nil {
return
}
_, exists = reservedIPAddresses[address]
if exists {
log.Printf("IP address '%s' description: %s type:'%s') is reserved in VLAN '%s'. ",
address,
description,
addressType,
vlanID,
)
} else {
log.Printf("IP address '%s' description: %s type:'%s') is not reserved in VLAN '%s'. ",
address,
description,
addressType,
vlanID,
)
}
return exists, nil
}
func resourceIPAddressReservationCreate(data *schema.ResourceData, provider interface{}) (err error) {
vlanID := data.Get(resourceKeyIPAddressReservationVLANID).(string)
address := data.Get(resourceKeyIPAddressReservationAddress).(string)
addressType := data.Get(resourceKeyIPAddressReservationAddressType).(string)
description := data.Get(resourceKeyIPAddressReservationDescription).(string)
log.Printf("Reserving IP address '%s'. desciption: %s ('%s') in VLAN '%s'...",
address,
description,
addressType,
vlanID,
)
providerState := provider.(*providerState)
apiClient := providerState.Client()
operationDescription := fmt.Sprintf("Reserve IP Address '%s'", description)
err = providerState.RetryAction(operationDescription, func(context retry.Context) {
// CloudControl has issues if more than one asynchronous operation is initated at a time (returns UNEXPECTED_ERROR).
asyncLock := providerState.AcquireAsyncOperationLock("Reserve IP Address '%s'", description)
defer asyncLock.Release()
var deployError error
switch addressType {
case addressTypeIPv4:
deployError = apiClient.ReservePrivateIPv4Address(vlanID, address, description)
case addressTypeIPv6:
deployError = apiClient.ReserveIPv6Address(vlanID, address, description)
default:
deployError = fmt.Errorf("invalid address type '%s'", addressType)
}
if deployError != nil {
if compute.IsResourceBusyError(deployError) {
context.Retry()
} else {
context.Fail(deployError)
}
}
asyncLock.Release()
})
if err != nil {
return err
}
data.SetId(fmt.Sprintf("%s/%s",
address, description,
))
log.Printf("Reserved IP address:'%s' description:%s ('%s') in VLAN '%s' successfully.",
address,
description,
addressType,
vlanID,
)
return
}
func resourceIPAddressReservationRead(data *schema.ResourceData, provider interface{}) (err error) {
log.Println("resourceIPAddressReservationRead")
vlanID := data.Get(resourceKeyIPAddressReservationVLANID).(string)
address := data.Get(resourceKeyIPAddressReservationAddress).(string)
addressType := data.Get(resourceKeyIPAddressReservationAddressType).(string)
description := data.Get(resourceKeyIPAddressReservationDescription).(string)
log.Printf("Reading Reserved IP address:'%s' description:'%s' type:'%s') in VLAN '%s'...",
address,
description,
addressType,
vlanID,
)
providerState := provider.(*providerState)
var reservedIPAddresses map[string]compute.ReservedIPAddress
reservedIPAddresses, err = getReservedIPAddresses(vlanID, addressType, providerState)
if err != nil {
return
}
ipAddrReserved, exists := reservedIPAddresses[address]
if exists {
log.Printf("IP Address: %s is reserved.", ipAddrReserved.IPAddress)
data.Set(resourceKeyIPAddressReservationAddress, ipAddrReserved.IPAddress)
data.Set(resourceKeyIPAddressReservationVLANID, ipAddrReserved.VLANID)
data.Set(resourceKeyIPAddressReservationDescription, ipAddrReserved.Description)
} else {
data.SetId("")
log.Printf("IP Address: %s is NOT reserved.", ipAddrReserved.IPAddress)
}
return nil
}
func resourceIPAddressReservationDelete(data *schema.ResourceData, provider interface{}) (err error) {
vlanID := data.Get(resourceKeyIPAddressReservationVLANID).(string)
address := data.Get(resourceKeyIPAddressReservationAddress).(string)
addressType := data.Get(resourceKeyIPAddressReservationAddressType).(string)
description := data.Get(resourceKeyIPAddressReservationDescription).(string)
providerState := provider.(*providerState)
apiClient := providerState.Client()
operationDescription := fmt.Sprintf("Delete Reserved IP Address '%s'", description)
err = providerState.RetryAction(operationDescription, func(context retry.Context) {
// CloudControl has issues if more than one asynchronous operation is initated at a time (returns UNEXPECTED_ERROR).
asyncLock := providerState.AcquireAsyncOperationLock("Delete Reserved IP Address '%s'", description)
defer asyncLock.Release()
switch addressType {
case addressTypeIPv4:
err = apiClient.UnreservePrivateIPv4Address(vlanID, address, description)
case addressTypeIPv6:
err = apiClient.UnreserveIPv6Address(vlanID, address, description)
default:
err = fmt.Errorf("invalid address type '%s'", addressType)
}
if err != nil {
return
}
asyncLock.Release()
})
data.SetId("")
return
}
func getReservedIPAddresses(vlanID string, addressType string, providerState *providerState) (map[string]compute.ReservedIPAddress, error) {
switch addressType {
case addressTypeIPv4:
return getReservedPrivateIPv4Addresses(vlanID, providerState)
case addressTypeIPv6:
return getReservedIPv6Addresses(vlanID, providerState)
default:
return nil, fmt.Errorf("invalid address type '%s'", addressType)
}
}
func getReservedPrivateIPv4Addresses(vlanID string, providerState *providerState) (map[string]compute.ReservedIPAddress, error) {
apiClient := providerState.Client()
reservedIPAddresses := make(map[string]compute.ReservedIPAddress)
reservations, err := apiClient.ListReservedPrivateIPv4AddressesInVLAN(vlanID)
if err != nil {
return nil, err
}
if reservations.IsEmpty() {
return nil, err
}
for _, reservedIPAddress := range reservations.Items {
reservedIPAddresses[reservedIPAddress.IPAddress] = reservedIPAddress
}
return reservedIPAddresses, nil
}
func getReservedIPv6Addresses(vlanID string, providerState *providerState) (map[string]compute.ReservedIPAddress, error) {
apiClient := providerState.Client()
reservedIPAddresses := make(map[string]compute.ReservedIPAddress)
reservations, err := apiClient.ListReservedIPv6AddressesInVLAN(vlanID)
if err != nil {
return nil, err
}
if reservations.IsEmpty() {
return nil, err
}
for _, reservedIPAddress := range reservations.Items {
reservedIPAddresses[reservedIPAddress.IPAddress] = reservedIPAddress
}
return reservedIPAddresses, nil
}