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

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2019-01-30 13:48:51 -05:00
package common
import (
"context"
"fmt"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/outscale/osc-go/oapi"
)
// StepPreValidate provides an opportunity to pre-validate any configuration for
// the build before actually doing any time consuming work
//
type StepPreValidate struct {
DestOmiName string
ForceDeregister bool
}
func (s *StepPreValidate) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
if s.ForceDeregister {
ui.Say("Force Deregister flag found, skipping prevalidating OMI Name")
return multistep.ActionContinue
}
oapiconn := state.Get("oapi").(*oapi.Client)
ui.Say(fmt.Sprintf("Prevalidating OMI Name: %s", s.DestOmiName))
resp, err := oapiconn.POST_ReadImages(oapi.ReadImagesRequest{
Filters: oapi.FiltersImage{ImageNames: []string{s.DestOmiName}},
})
if err != nil {
err := fmt.Errorf("Error querying OMI: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
if len(resp.OK.Images) > 0 {
err := fmt.Errorf("Error: name conflicts with an existing OMI: %s", resp.OK.Images[0].ImageId)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
return multistep.ActionContinue
}
func (s *StepPreValidate) Cleanup(multistep.StateBag) {}