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package jdcloud
import (
"context"
"fmt"
"regexp"
"time"
"github.com/hashicorp/packer/packer-plugin-sdk/multistep"
packersdk "github.com/hashicorp/packer/packer-plugin-sdk/packer"
"github.com/jdcloud-api/jdcloud-sdk-go/core"
"github.com/jdcloud-api/jdcloud-sdk-go/services/vm/apis"
vm "github.com/jdcloud-api/jdcloud-sdk-go/services/vm/models"
vpcApis "github.com/jdcloud-api/jdcloud-sdk-go/services/vpc/apis"
vpcClient "github.com/jdcloud-api/jdcloud-sdk-go/services/vpc/client"
vpc "github.com/jdcloud-api/jdcloud-sdk-go/services/vpc/models"
)
type stepCreateJDCloudInstance struct {
InstanceSpecConfig *JDCloudInstanceSpecConfig
CredentialConfig *JDCloudCredentialConfig
ui packersdk.Ui
}
func (s *stepCreateJDCloudInstance) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
privateKey := s.InstanceSpecConfig.Comm.SSHPrivateKey
keyName := s.InstanceSpecConfig.Comm.SSHKeyPairName
password := s.InstanceSpecConfig.Comm.SSHPassword
s.ui = state.Get("ui").(packersdk.Ui)
s.ui.Say("Creating instances")
instanceSpec := vm.InstanceSpec{
Az: &s.CredentialConfig.Az,
InstanceType: &s.InstanceSpecConfig.InstanceType,
ImageId: &s.InstanceSpecConfig.ImageId,
Name: s.InstanceSpecConfig.InstanceName,
PrimaryNetworkInterface: &vm.InstanceNetworkInterfaceAttachmentSpec{
NetworkInterface: &vpc.NetworkInterfaceSpec{
SubnetId: s.InstanceSpecConfig.SubnetId,
Az: &s.CredentialConfig.Az,
},
},
}
if len(password) > 0 {
instanceSpec.Password = &password
}
if len(keyName) > 0 && len(privateKey) > 0 {
instanceSpec.KeyNames = []string{keyName}
}
req := apis.NewCreateInstancesRequest(Region, &instanceSpec)
resp, err := VmClient.CreateInstances(req)
if err != nil || resp.Error.Code != FINE {
err := fmt.Errorf("Error creating instance, error-%v response:%v", err, resp)
s.ui.Error(err.Error())
return multistep.ActionHalt
}
s.InstanceSpecConfig.InstanceId = resp.Result.InstanceIds[0]
instanceInterface, err := InstanceStatusRefresher(s.InstanceSpecConfig.InstanceId, []string{VM_PENDING, VM_STARTING}, []string{VM_RUNNING})
if err != nil {
s.ui.Error(err.Error())
return multistep.ActionHalt
}
instance := instanceInterface.(vm.Instance)
privateIpAddress := instance.PrivateIpAddress
networkInterfaceId := instance.PrimaryNetworkInterface.NetworkInterface.NetworkInterfaceId
s.ui.Message("Creating public-ip")
s.InstanceSpecConfig.PublicIpId, err = createElasticIp(state)
if err != nil {
s.ui.Error(err.Error())
return multistep.ActionHalt
}
s.ui.Message("Associating public-ip with instance")
err = associatePublicIp(networkInterfaceId, s.InstanceSpecConfig.PublicIpId, privateIpAddress)
if err != nil {
s.ui.Error(err.Error())
return multistep.ActionHalt
}
req_ := vpcApis.NewDescribeElasticIpRequest(Region, s.InstanceSpecConfig.PublicIpId)
eip, err := VpcClient.DescribeElasticIp(req_)
if err != nil || eip.Error.Code != FINE {
s.ui.Error(fmt.Sprintf("[ERROR] Failed in getting eip,error:%v \n response:%v", err, eip))
return multistep.ActionHalt
}
s.InstanceSpecConfig.PublicIpAddress = eip.Result.ElasticIp.ElasticIpAddress
state.Put("eip", s.InstanceSpecConfig.PublicIpAddress)
s.ui.Message(fmt.Sprintf(
"Hi, we have created the instance, its name=%v , "+
"its id=%v, "+
"and its eip=%v :) ", instance.InstanceName, s.InstanceSpecConfig.InstanceId, eip.Result.ElasticIp.ElasticIpAddress))
// instance_id is the generic term used so that users can have access to the
// instance id inside of the provisioners, used in step_provision.
state.Put("instance_id", s.InstanceSpecConfig.InstanceId)
return multistep.ActionContinue
}
// Delete created resources {instance,ip} on error
func (s *stepCreateJDCloudInstance) Cleanup(state multistep.StateBag) {
if s.InstanceSpecConfig.PublicIpId != "" {
req := vpcApis.NewDeleteElasticIpRequest(Region, s.InstanceSpecConfig.PublicIpId)
_ = Retry(time.Minute, func() *RetryError {
_, err := VpcClient.DeleteElasticIp(req)
if err == nil {
return nil
}
if connectionError(err) {
return RetryableError(err)
} else {
return NonRetryableError(err)
}
})
}
if s.InstanceSpecConfig.InstanceId != "" {
req := apis.NewDeleteInstanceRequest(Region, s.InstanceSpecConfig.InstanceId)
_ = Retry(time.Minute, func() *RetryError {
_, err := VmClient.DeleteInstance(req)
if err == nil {
return nil
}
if connectionError(err) {
return RetryableError(err)
} else {
return NonRetryableError(err)
}
})
}
}
func createElasticIp(state multistep.StateBag) (string, error) {
generalConfig := state.Get("config").(*Config)
regionId := generalConfig.RegionId
credential := core.NewCredentials(generalConfig.AccessKey, generalConfig.SecretKey)
vpcclient := vpcClient.NewVpcClient(credential)
req := vpcApis.NewCreateElasticIpsRequest(regionId, 1, &vpc.ElasticIpSpec{
BandwidthMbps: 1,
Provider: "bgp",
})
resp, err := vpcclient.CreateElasticIps(req)
if err != nil || resp.Error.Code != 0 {
return "", fmt.Errorf("[ERROR] Failed in creating new publicIp, Error-%v, Response:%v", err, resp)
}
return resp.Result.ElasticIpIds[0], nil
}
func associatePublicIp(networkInterfaceId string, eipId string, privateIpAddress string) error {
req := vpcApis.NewAssociateElasticIpRequest(Region, networkInterfaceId)
req.ElasticIpId = &eipId
req.PrivateIpAddress = &privateIpAddress
resp, err := VpcClient.AssociateElasticIp(req)
if err != nil || resp.Error.Code != FINE {
return fmt.Errorf("[ERROR] Failed in associating publicIp, Error-%v, Response:%v", err, resp)
}
return nil
}
func instanceHost(state multistep.StateBag) (string, error) {
return state.Get("eip").(string), nil
}
func InstanceStatusRefresher(id string, pending, target []string) (instance interface{}, err error) {
stateConf := &StateChangeConf{
Pending: pending,
Target: target,
Refresh: instanceStatusRefresher(id),
Delay: 3 * time.Second,
Timeout: 10 * time.Minute,
MinTimeout: 1 * time.Second,
}
if instance, err = stateConf.WaitForState(); err != nil {
return nil, fmt.Errorf("[ERROR] Failed in creating instance ,err message:%v", err)
}
return instance, nil
}
func instanceStatusRefresher(instanceId string) StateRefreshFunc {
return func() (instance interface{}, status string, err error) {
err = Retry(time.Minute, func() *RetryError {
req := apis.NewDescribeInstanceRequest(Region, instanceId)
resp, err := VmClient.DescribeInstance(req)
if err == nil && resp.Error.Code == FINE {
instance = resp.Result.Instance
status = resp.Result.Instance.Status
return nil
}
instance = nil
status = ""
if connectionError(err) {
return RetryableError(err)
} else {
return NonRetryableError(err)
}
})
return instance, status, err
}
}
func connectionError(e error) bool {
if e == nil {
return false
}
ok, _ := regexp.MatchString(CONNECT_FAILED, e.Error())
return ok
}
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