packer-cn/builder/osc/common/step_source_omi_info.go

103 lines
2.7 KiB
Go

package common
import (
"context"
"fmt"
"log"
"sort"
"time"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/outscale/osc-go/oapi"
)
// StepSourceOMIInfo extracts critical information from the source OMI
// that is used throughout the OMI creation process.
//
// Produces:
// source_image *oapi.Image - the source OMI info
type StepSourceOMIInfo struct {
SourceOmi string
EnableOMISriovNetSupport bool
EnableOMIENASupport *bool
OMIVirtType string
OmiFilters OmiFilterOptions
}
type imageSort []oapi.Image
func (a imageSort) Len() int { return len(a) }
func (a imageSort) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a imageSort) Less(i, j int) bool {
itime, _ := time.Parse(time.RFC3339, a[i].CreationDate)
jtime, _ := time.Parse(time.RFC3339, a[j].CreationDate)
return itime.Unix() < jtime.Unix()
}
// Returns the most recent OMI out of a slice of images.
func mostRecentOmi(images []oapi.Image) oapi.Image {
sortedImages := images
sort.Sort(imageSort(sortedImages))
return sortedImages[len(sortedImages)-1]
}
func (s *StepSourceOMIInfo) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
oapiconn := state.Get("oapi").(*oapi.Client)
ui := state.Get("ui").(packer.Ui)
params := oapi.ReadImagesRequest{
Filters: oapi.FiltersImage{},
}
if s.SourceOmi != "" {
params.Filters.ImageIds = []string{s.SourceOmi}
}
// We have filters to apply
if len(s.OmiFilters.Filters) > 0 {
params.Filters = buildOMIFilters(s.OmiFilters.Filters)
}
//TODO:Check if AccountIds correspond to Owners.
if len(s.OmiFilters.Owners) > 0 {
params.Filters.AccountIds = s.OmiFilters.Owners
}
log.Printf("Using OMI Filters %#v", params)
imageResp, err := oapiconn.POST_ReadImages(params)
if err != nil {
err := fmt.Errorf("Error querying OMI: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
if len(imageResp.OK.Images) == 0 {
err := fmt.Errorf("No OMI was found matching filters: %#v", params)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
if len(imageResp.OK.Images) > 1 && !s.OmiFilters.MostRecent {
err := fmt.Errorf("Your query returned more than one result. Please try a more specific search, or set most_recent to true.")
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
var image oapi.Image
if s.OmiFilters.MostRecent {
image = mostRecentOmi(imageResp.OK.Images)
} else {
image = imageResp.OK.Images[0]
}
ui.Message(fmt.Sprintf("Found Image ID: %s", image.ImageId))
state.Put("source_image", image)
return multistep.ActionContinue
}
func (s *StepSourceOMIInfo) Cleanup(multistep.StateBag) {}