339 lines
9.7 KiB
Go
339 lines
9.7 KiB
Go
package uhost
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import (
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"context"
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"encoding/base64"
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"fmt"
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"io/ioutil"
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"math/rand"
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"strings"
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"time"
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ucloudcommon "github.com/hashicorp/packer/builder/ucloud/common"
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"github.com/hashicorp/packer/packer-plugin-sdk/multistep"
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packersdk "github.com/hashicorp/packer/packer-plugin-sdk/packer"
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"github.com/hashicorp/packer/packer-plugin-sdk/retry"
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"github.com/ucloud/ucloud-sdk-go/services/uhost"
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"github.com/ucloud/ucloud-sdk-go/ucloud"
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)
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type stepCreateInstance struct {
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Region string
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Zone string
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InstanceType string
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InstanceName string
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BootDiskType string
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SourceImageId string
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UsePrivateIp bool
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EipBandwidth int
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EipChargeMode string
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UserData string
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UserDataFile string
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MinCpuPlatform string
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instanceId string
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}
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func (s *stepCreateInstance) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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client := state.Get("client").(*ucloudcommon.UCloudClient)
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conn := client.UHostConn
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ui := state.Get("ui").(packersdk.Ui)
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ui.Say("Creating Instance...")
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req, err := s.buildCreateInstanceRequest(state)
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if err != nil {
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return ucloudcommon.Halt(state, err, "Error on build instance request")
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}
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resp, err := conn.CreateUHostInstance(req)
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if err != nil {
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return ucloudcommon.Halt(state, err, "Error on creating instance")
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}
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instanceId := resp.UHostIds[0]
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err = retry.Config{
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Tries: 100,
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ShouldRetry: func(err error) bool {
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return ucloudcommon.IsExpectedStateError(err)
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},
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RetryDelay: (&retry.Backoff{InitialBackoff: 2 * time.Second, MaxBackoff: 6 * time.Second, Multiplier: 2}).Linear,
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}.Run(ctx, func(ctx context.Context) error {
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inst, err := client.DescribeUHostById(instanceId)
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if err != nil {
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return err
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}
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if inst.State == "ResizeFail" {
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return fmt.Errorf("resizing instance failed")
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}
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if inst.State == "Install Fail" {
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return fmt.Errorf("install failed")
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}
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if inst == nil || inst.State != ucloudcommon.InstanceStateRunning {
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return ucloudcommon.NewExpectedStateError("instance", instanceId)
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}
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return nil
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})
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if err != nil {
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return ucloudcommon.Halt(state, err, fmt.Sprintf("Error on waiting for instance %q to become available", instanceId))
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}
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ui.Message(fmt.Sprintf("Creating instance %q complete", instanceId))
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instance, err := client.DescribeUHostById(instanceId)
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if err != nil {
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return ucloudcommon.Halt(state, err, fmt.Sprintf("Error on reading instance when creating %q", instanceId))
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}
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s.instanceId = instanceId
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state.Put("instance", instance)
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// instance_id is the generic term used so that users can have access to the
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// instance id inside of the provisioners, used in step_provision.
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state.Put("instance_id", instance)
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if instance.BootDiskState != ucloudcommon.BootDiskStateNormal {
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ui.Say("Waiting for boot disk of instance initialized")
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if s.BootDiskType == "local_normal" || s.BootDiskType == "local_ssd" {
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ui.Message(fmt.Sprintf("Warning: It takes around 10 mins for boot disk initialization when `boot_disk_type` is %q", s.BootDiskType))
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}
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err = retry.Config{
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Tries: 200,
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ShouldRetry: func(err error) bool {
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return ucloudcommon.IsExpectedStateError(err)
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},
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RetryDelay: (&retry.Backoff{InitialBackoff: 2 * time.Second, MaxBackoff: 12 * time.Second, Multiplier: 2}).Linear,
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}.Run(ctx, func(ctx context.Context) error {
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inst, err := client.DescribeUHostById(instanceId)
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if err != nil {
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return err
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}
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if inst.BootDiskState != ucloudcommon.BootDiskStateNormal {
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return ucloudcommon.NewExpectedStateError("boot_disk of instance", instanceId)
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}
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return nil
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})
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if err != nil {
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return ucloudcommon.Halt(state, err, fmt.Sprintf("Error on waiting for boot disk of instance %q initialized", instanceId))
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}
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ui.Message(fmt.Sprintf("Waiting for boot disk of instance %q initialized complete", instanceId))
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}
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return multistep.ActionContinue
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}
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func (s *stepCreateInstance) Cleanup(state multistep.StateBag) {
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if s.instanceId == "" {
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return
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}
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_, cancelled := state.GetOk(multistep.StateCancelled)
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_, halted := state.GetOk(multistep.StateHalted)
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ui := state.Get("ui").(packersdk.Ui)
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ctx := context.TODO()
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if cancelled || halted {
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ui.Say("Deleting instance because of cancellation or error...")
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} else {
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ui.Say("Deleting instance...")
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}
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client := state.Get("client").(*ucloudcommon.UCloudClient)
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conn := client.UHostConn
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instance, err := client.DescribeUHostById(s.instanceId)
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if err != nil {
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if ucloudcommon.IsNotFoundError(err) {
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return
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}
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ui.Error(fmt.Sprintf("Error on reading instance when deleting %q, %s",
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s.instanceId, err.Error()))
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return
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}
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if instance.State != ucloudcommon.InstanceStateStopped {
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stopReq := conn.NewStopUHostInstanceRequest()
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stopReq.UHostId = ucloud.String(s.instanceId)
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if _, err = conn.StopUHostInstance(stopReq); err != nil {
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ui.Error(fmt.Sprintf("Error on stopping instance when deleting %q, %s",
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s.instanceId, err.Error()))
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return
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}
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err = retry.Config{
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Tries: 100,
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ShouldRetry: func(err error) bool {
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return ucloudcommon.IsExpectedStateError(err)
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},
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RetryDelay: (&retry.Backoff{InitialBackoff: 2 * time.Second, MaxBackoff: 6 * time.Second, Multiplier: 2}).Linear,
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}.Run(ctx, func(ctx context.Context) error {
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instance, err := client.DescribeUHostById(s.instanceId)
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if err != nil {
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return err
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}
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if instance.State != ucloudcommon.InstanceStateStopped {
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return ucloudcommon.NewExpectedStateError("instance", s.instanceId)
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}
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return nil
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})
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if err != nil {
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ui.Error(fmt.Sprintf("Error on waiting for stopping instance when deleting %q, %s",
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s.instanceId, err.Error()))
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return
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}
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}
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deleteReq := conn.NewTerminateUHostInstanceRequest()
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deleteReq.UHostId = ucloud.String(s.instanceId)
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deleteReq.ReleaseUDisk = ucloud.Bool(true)
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deleteReq.ReleaseEIP = ucloud.Bool(true)
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if _, err = conn.TerminateUHostInstance(deleteReq); err != nil {
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ui.Error(fmt.Sprintf("Error on deleting instance %q, %s",
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s.instanceId, err.Error()))
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return
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}
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err = retry.Config{
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Tries: 50,
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ShouldRetry: func(err error) bool { return !ucloudcommon.IsNotFoundError(err) },
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RetryDelay: (&retry.Backoff{InitialBackoff: 2 * time.Second, MaxBackoff: 6 * time.Second, Multiplier: 2}).Linear,
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}.Run(ctx, func(ctx context.Context) error {
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_, err := client.DescribeUHostById(s.instanceId)
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return err
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})
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if err != nil {
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ui.Error(fmt.Sprintf("Error on waiting for instance %q to be deleted: %s",
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s.instanceId, err.Error()))
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return
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}
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ui.Message(fmt.Sprintf("Deleting instance %q complete", s.instanceId))
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}
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func (s *stepCreateInstance) buildCreateInstanceRequest(state multistep.StateBag) (*uhost.CreateUHostInstanceRequest, error) {
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client := state.Get("client").(*ucloudcommon.UCloudClient)
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conn := client.UHostConn
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srcImage := state.Get("source_image").(*uhost.UHostImageSet)
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config := state.Get("config").(*Config)
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connectConfig := &config.RunConfig.Comm
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var password string
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if srcImage.OsType == "Linux" {
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password = config.Comm.SSHPassword
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}
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if password == "" {
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password = fmt.Sprintf("%s%s%s",
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s.randStringFromCharSet(5, ucloudcommon.DefaultPasswordStr),
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s.randStringFromCharSet(1, ucloudcommon.DefaultPasswordSpe),
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s.randStringFromCharSet(5, ucloudcommon.DefaultPasswordNum))
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if srcImage.OsType == "Linux" {
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connectConfig.SSHPassword = password
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}
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}
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req := conn.NewCreateUHostInstanceRequest()
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t, _ := ucloudcommon.ParseInstanceType(s.InstanceType)
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req.CPU = ucloud.Int(t.CPU)
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req.Memory = ucloud.Int(t.Memory)
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req.Name = ucloud.String(s.InstanceName)
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req.LoginMode = ucloud.String("Password")
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req.Zone = ucloud.String(s.Zone)
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req.ImageId = ucloud.String(s.SourceImageId)
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req.ChargeType = ucloud.String("Dynamic")
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req.Password = ucloud.String(password)
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req.MinimalCpuPlatform = ucloud.String(s.MinCpuPlatform)
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req.MachineType = ucloud.String(strings.ToUpper(t.HostType))
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if v, ok := state.GetOk("security_group_id"); ok {
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req.SecurityGroupId = ucloud.String(v.(string))
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}
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if v, ok := state.GetOk("vpc_id"); ok {
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req.VPCId = ucloud.String(v.(string))
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}
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if v, ok := state.GetOk("subnet_id"); ok {
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req.SubnetId = ucloud.String(v.(string))
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}
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userData, err := s.getUserData(state)
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if err != nil {
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return nil, err
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}
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if userData != "" {
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req.UserData = ucloud.String(userData)
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}
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bootDisk := uhost.UHostDisk{}
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bootDisk.IsBoot = ucloud.String("true")
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bootDisk.Size = ucloud.Int(srcImage.ImageSize)
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bootDisk.Type = ucloud.String(ucloudcommon.BootDiskTypeMap.Convert(s.BootDiskType))
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req.Disks = append(req.Disks, bootDisk)
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if v, ok := state.GetOk("user_data"); ok {
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req.UserData = ucloud.String(base64.StdEncoding.EncodeToString([]byte(v.(string))))
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}
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if !s.UsePrivateIp {
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operatorName := ucloud.String("International")
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if strings.HasPrefix(s.Region, "cn-") {
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operatorName = ucloud.String("Bgp")
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}
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networkInterface := uhost.CreateUHostInstanceParamNetworkInterface{
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EIP: &uhost.CreateUHostInstanceParamNetworkInterfaceEIP{
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Bandwidth: ucloud.Int(s.EipBandwidth),
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PayMode: ucloud.String(ucloudcommon.ChargeModeMap.Convert(s.EipChargeMode)),
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OperatorName: operatorName,
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},
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}
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req.NetworkInterface = append(req.NetworkInterface, networkInterface)
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}
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return req, nil
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}
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func (s *stepCreateInstance) randStringFromCharSet(strlen int, charSet string) string {
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rand.Seed(time.Now().UTC().UnixNano())
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result := make([]byte, strlen)
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for i := 0; i < strlen; i++ {
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result[i] = charSet[rand.Intn(len(charSet))]
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}
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return string(result)
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}
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func (s *stepCreateInstance) getUserData(state multistep.StateBag) (string, error) {
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userData := s.UserData
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if s.UserDataFile != "" {
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data, err := ioutil.ReadFile(s.UserDataFile)
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if err != nil {
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return "", fmt.Errorf("error on reading user_data_file, %s", err)
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}
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userData = string(data)
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}
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if userData != "" {
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userData = base64.StdEncoding.EncodeToString([]byte(userData))
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}
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return userData, nil
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}
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