packer-cn/builder/azure/chroot/step_verify_shared_image_so...

127 lines
4.4 KiB
Go

package chroot
import (
"context"
"fmt"
"log"
"strings"
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-12-01/compute"
"github.com/Azure/go-autorest/autorest/to"
"github.com/hashicorp/packer-plugin-sdk/multistep"
packersdk "github.com/hashicorp/packer-plugin-sdk/packer"
"github.com/hashicorp/packer/builder/azure/common/client"
)
var _ multistep.Step = &StepVerifySharedImageSource{}
// StepVerifySharedImageSource verifies that the shared image location matches the Location field in the step.
// Also verifies that the OS Type is Linux.
type StepVerifySharedImageSource struct {
SharedImageID string
SubscriptionID string
Location string
}
// Run retrieves the image metadata from Azure and compares the location to Location. Verifies the OS Type.
func (s *StepVerifySharedImageSource) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
azcli := state.Get("azureclient").(client.AzureClientSet)
ui := state.Get("ui").(packersdk.Ui)
errorMessage := func(message string, parameters ...interface{}) multistep.StepAction {
err := fmt.Errorf(message, parameters...)
log.Printf("StepVerifySharedImageSource.Run: error: %+v", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
resource, err := client.ParseResourceID(s.SharedImageID)
if err != nil {
return errorMessage("Could not parse resource id %q: %w", s.SharedImageID, err)
}
if !strings.EqualFold(resource.Provider, "Microsoft.Compute") ||
!strings.EqualFold(resource.ResourceType.String(), "galleries/images/versions") {
return errorMessage("Resource id %q does not identify a shared image version, expected Microsoft.Compute/galleries/images/versions", s.SharedImageID)
}
ui.Say(fmt.Sprintf("Validating that shared image version %q exists",
s.SharedImageID))
version, err := azcli.GalleryImageVersionsClient().Get(ctx,
resource.ResourceGroup,
resource.ResourceName[0],
resource.ResourceName[1],
resource.ResourceName[2],
"")
if err != nil {
return errorMessage("Error retrieving shared image version %q: %+v ", s.SharedImageID, err)
}
if version.ID == nil || *version.ID == "" {
return errorMessage("Error retrieving shared image version %q: ID field in response is empty", s.SharedImageID)
}
if version.GalleryImageVersionProperties == nil ||
version.GalleryImageVersionProperties.PublishingProfile == nil ||
version.GalleryImageVersionProperties.PublishingProfile.TargetRegions == nil {
return errorMessage("Could not retrieve shared image version properties for image %q.", s.SharedImageID)
}
targetLocations := make([]string, 0, len(*version.GalleryImageVersionProperties.PublishingProfile.TargetRegions))
vmLocation := client.NormalizeLocation(s.Location)
locationFound := false
for _, tr := range *version.GalleryImageVersionProperties.PublishingProfile.TargetRegions {
l := to.String(tr.Name)
l = client.NormalizeLocation(l)
targetLocations = append(targetLocations, l)
if strings.EqualFold(vmLocation, l) {
locationFound = true
break
}
}
if !locationFound {
return errorMessage("Target locations %q for %q does not include VM location %q",
targetLocations, s.SharedImageID, vmLocation)
}
imageResource, _ := resource.Parent()
image, err := azcli.GalleryImagesClient().Get(ctx,
resource.ResourceGroup,
resource.ResourceName[0],
resource.ResourceName[1])
if err != nil {
return errorMessage("Error retrieving shared image %q: %+v ", imageResource.String(), err)
}
if image.ID == nil || *image.ID == "" {
return errorMessage("Error retrieving shared image %q: ID field in response is empty", imageResource.String())
}
if image.GalleryImageProperties == nil {
return errorMessage("Could not retrieve shared image properties for image %q.", imageResource.String())
}
log.Printf("StepVerifySharedImageSource:Run: Image %q, HvGen: %q, osState: %q",
to.String(image.ID),
image.GalleryImageProperties.HyperVGeneration,
image.GalleryImageProperties.OsState)
if image.GalleryImageProperties.OsType != compute.Linux {
return errorMessage("The shared image (%q) is not a Linux image (found %q). Currently only Linux images are supported.",
to.String(image.ID),
image.GalleryImageProperties.OsType)
}
ui.Say(fmt.Sprintf("Found image source image version %q, available in location %s",
s.SharedImageID,
s.Location))
return multistep.ActionContinue
}
func (*StepVerifySharedImageSource) Cleanup(multistep.StateBag) {}