add SourceImageChecksum

.web-docs/components/builder/nutanix/README.md

@@ -84,6 +84,7 @@ Sample:
 - `source_image_name` (string) - Name of the image used as disk source.
 - `source_image_uuid` (string) - UUID of the image used as disk source.
 - `source_image_uri` (string) - URI of the image used as disk source (if image is not already on the cluster, it will download and store it before launching output image creation process).
+- `source_image_checksum` (string) - Checksum SHA-256 of the image used as disk source (work only with `source_image_uri`).
 - `source_image_delete` (bool) - Delete source image once build process is completed (default is false).
 - `source_image_force` (bool) - Always download and replace source image even if already exist (default is false).
 - `disk_size_gb` (number) - size of the disk (in gigabytes).

builder/nutanix/config.go

@@ -6,6 +6,7 @@ import (
 	//"errors"
 	"fmt"
 	"log"
+	"regexp"
 	"time"
 
 	"github.com/hashicorp/packer-plugin-sdk/common"
@@ -68,13 +69,14 @@ type ClusterConfig struct {
 }
 
 type VmDisk struct {
-	ImageType         string `mapstructure:"image_type" json:"image_type" required:"false"`
-	SourceImageName   string `mapstructure:"source_image_name" json:"source_image_name" required:"false"`
-	SourceImageUUID   string `mapstructure:"source_image_uuid" json:"source_image_uuid" required:"false"`
-	SourceImageURI    string `mapstructure:"source_image_uri" json:"source_image_uri" required:"false"`
-	SourceImageDelete bool   `mapstructure:"source_image_delete" json:"source_image_delete" required:"false"`
-	SourceImageForce  bool   `mapstructure:"source_image_force" json:"source_image_force" required:"false"`
-	DiskSizeGB        int64  `mapstructure:"disk_size_gb" json:"disk_size_gb" required:"false"`
+	ImageType           string `mapstructure:"image_type" json:"image_type" required:"false"`
+	SourceImageName     string `mapstructure:"source_image_name" json:"source_image_name" required:"false"`
+	SourceImageUUID     string `mapstructure:"source_image_uuid" json:"source_image_uuid" required:"false"`
+	SourceImageURI      string `mapstructure:"source_image_uri" json:"source_image_uri" required:"false"`
+	SourceImageChecksum string `mapstructure:"source_image_checksum" json:"source_image_checksum" required:"false"`
+	SourceImageDelete   bool   `mapstructure:"source_image_delete" json:"source_image_delete" required:"false"`
+	SourceImageForce    bool   `mapstructure:"source_image_force" json:"source_image_force" required:"false"`
+	DiskSizeGB          int64  `mapstructure:"disk_size_gb" json:"disk_size_gb" required:"false"`
 }
 
 type VmNIC struct {
@@ -237,6 +239,22 @@ func (c *Config) Prepare(raws ...interface{}) ([]string, error) {
 		}
 	}
 
+	// Validate each disk
+	for index, disk := range c.VmConfig.VmDisks {
+
+		// Validate checksum only with uri
+		if disk.SourceImageChecksum != "" && disk.SourceImageURI == "" {
+			log.Printf("disk %d: Checksum work only with Source Image URI\n", index)
+			errs = packersdk.MultiErrorAppend(errs, fmt.Errorf("disk %d: source_image_checksum work only with source_image_uri", index))
+		}
+
+		// Validate checksum format
+		if disk.SourceImageChecksum != "" && !IsSHA256Checksum(disk.SourceImageChecksum) {
+			log.Printf("disk %d: Invalid checksum format", index)
+			errs = packersdk.MultiErrorAppend(errs, fmt.Errorf("disk %d: invalid checksum format", index))
+		}
+	}
+
 	if c.CommConfig.SSHPort == 0 {
 		log.Println("SSHPort not set, defaulting to 22")
 		c.CommConfig.SSHPort = 22
@@ -262,3 +280,11 @@ func (c *Config) Prepare(raws ...interface{}) ([]string, error) {
 
 	return warnings, nil
 }
+
+// IsSHA256Checksum validates if the input string is a valid SHA-256 checksum
+func IsSHA256Checksum(input string) bool {
+	// Regular expression for a 64-character hexadecimal string
+	const sha256Regex = `^[a-fA-F0-9]{64}$`
+	match, _ := regexp.MatchString(sha256Regex, input)
+	return match
+}

builder/nutanix/driver.go

@@ -731,6 +731,14 @@ func (d *NutanixDriver) CreateImageURL(ctx context.Context, disk VmDisk, vm VmCo
 	}
 	req.Spec.Resources.SourceURI = &disk.SourceImageURI
 
+	if disk.SourceImageChecksum != "" {
+
+		req.Spec.Resources.Checksum = &v3.Checksum{
+			ChecksumValue:     &disk.SourceImageChecksum,
+			ChecksumAlgorithm: StringPtr("SHA_256"),
+		}
+	}
+
 	image, err := conn.V3.CreateImage(ctx, req)
 	if err != nil {
 		return nil, fmt.Errorf("error while creating image: %s", err.Error())

docs/builders/nutanix.mdx

@@ -93,6 +93,7 @@ Sample:
 - `source_image_name` (string) - Name of the image used as disk source.
 - `source_image_uuid` (string) - UUID of the image used as disk source.
 - `source_image_uri` (string) - URI of the image used as disk source (if image is not already on the cluster, it will download and store it before launching output image creation process).
+- `source_image_checksum` (string) - Checksum SHA-256 of the image used as disk source (work only with `source_image_uri`).
 - `source_image_delete` (bool) - Delete source image once build process is completed (default is false).
 - `source_image_force` (bool) - Always download and replace source image even if already exist (default is false).
 - `disk_size_gb` (number) - size of the disk (in gigabytes).

example/README.md

@@ -1,16 +1,16 @@
 ## Examples
 Validate Manifests:
-packer validate .
+`packer validate .`
 
 Creating CentOS from local Image and running Provisioner:
-packer build -only nutanix.centos .
+`packer build -only nutanix.centos .`
 
 Creating Ubuntu from Upstream Image and running Provisioner:
-packer build -only nutanix.ubuntu .
+`packer build -only nutanix.ubuntu .`
 
 Creating from ISO with Kickstart-File:
-packer build -only nutanix.centos-kickstart .
+`packer build -only nutanix.centos-kickstart .`
 
 Windows Image (ISO Boot, VirtIO Drivers, cd_files)
-packer build -only nutanix.windows .
+`packer build -only nutanix.windows .`