packer-cn/builder/alicloud/ecs/step_create_snapshot.go

91 lines
2.8 KiB
Go

package ecs
import (
"context"
"fmt"
"time"
"github.com/aliyun/alibaba-cloud-sdk-go/sdk/errors"
"github.com/aliyun/alibaba-cloud-sdk-go/services/ecs"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
)
type stepCreateAlicloudSnapshot struct {
snapshot *ecs.Snapshot
WaitSnapshotReadyTimeout int
}
func (s *stepCreateAlicloudSnapshot) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(*Config)
client := state.Get("client").(*ClientWrapper)
ui := state.Get("ui").(packer.Ui)
instance := state.Get("instance").(*ecs.Instance)
describeDisksRequest := ecs.CreateDescribeDisksRequest()
describeDisksRequest.RegionId = config.AlicloudRegion
describeDisksRequest.InstanceId = instance.InstanceId
describeDisksRequest.DiskType = DiskTypeSystem
disksResponse, err := client.DescribeDisks(describeDisksRequest)
if err != nil {
return halt(state, err, "Error describe disks")
}
disks := disksResponse.Disks.Disk
if len(disks) == 0 {
return halt(state, err, "Unable to find system disk of instance")
}
createSnapshotRequest := ecs.CreateCreateSnapshotRequest()
createSnapshotRequest.DiskId = disks[0].DiskId
snapshot, err := client.CreateSnapshot(createSnapshotRequest)
if err != nil {
return halt(state, err, "Error creating snapshot")
}
// Create the alicloud snapshot
ui.Say(fmt.Sprintf("Creating snapshot from system disk %s: %s", disks[0].DiskId, snapshot.SnapshotId))
snapshotsResponse, err := client.WaitForSnapshotStatus(config.AlicloudRegion, snapshot.SnapshotId, SnapshotStatusAccomplished, time.Duration(s.WaitSnapshotReadyTimeout)*time.Second)
if err != nil {
_, ok := err.(errors.Error)
if ok {
return halt(state, err, "Error querying created snapshot")
}
return halt(state, err, "Timeout waiting for snapshot to be created")
}
snapshots := snapshotsResponse.(*ecs.DescribeSnapshotsResponse).Snapshots.Snapshot
if len(snapshots) == 0 {
return halt(state, err, "Unable to find created snapshot")
}
s.snapshot = &snapshots[0]
state.Put("alicloudsnapshot", snapshot.SnapshotId)
return multistep.ActionContinue
}
func (s *stepCreateAlicloudSnapshot) Cleanup(state multistep.StateBag) {
if s.snapshot == nil {
return
}
_, cancelled := state.GetOk(multistep.StateCancelled)
_, halted := state.GetOk(multistep.StateHalted)
if !cancelled && !halted {
return
}
client := state.Get("client").(*ClientWrapper)
ui := state.Get("ui").(packer.Ui)
ui.Say("Deleting the snapshot because of cancellation or error...")
deleteSnapshotRequest := ecs.CreateDeleteSnapshotRequest()
deleteSnapshotRequest.SnapshotId = s.snapshot.SnapshotId
if _, err := client.DeleteSnapshot(deleteSnapshotRequest); err != nil {
ui.Error(fmt.Sprintf("Error deleting snapshot, it may still be around: %s", err))
return
}
}