signature

Documentation

Index

• Constants
• Variables
• func GetDigest(manifest Manifest, domain Domain) (digest [32]byte, yml []byte, err error)
• func GetMetadataInformation(manifest Manifest, domain Domain) (signature string, excludes []string, err error)
• func ValidateSignature(manifest Manifest, domain Domain) (valid bool, digest [32]byte, yml []byte, err error)
• type Domain
• type GojqParams
• type Manifest

Constants

const (
	PublicKey           = "MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEnP0Yo+ZxzPUEfohcG3bbJ8987UT4f0tj+XVBjS/s35wkfjrxTKrVZQpz3ta3zi5ZlgXzd7a20B1U1Py/TtPsxw=="
	DomainName          = "eksa.aws.com"
	SignatureAnnotation = "signature"
	ExcludesAnnotation  = "excludes"
)

Variables

var (
	AlwaysExcluded = []string{
		".status",
		".metadata.creationTimestamp",
		".metadata.generation",
		".metadata.managedFields",
		".metadata.uid",
		".metadata.resourceVersion",
		".spec.minControllerVersion",
	}
	GojqTemplate = template.Must(template.New("gojq_query").Funcs(
		template.FuncMap{
			"StringsJoin": strings.Join,
			"Escape": func(in string) string {
				return strings.ReplaceAll(in, ".", "\\\\.")
			},
		}).Parse(`
del({{ StringsJoin .Excludes ", "}}) | (.metadata.annotations | objects) |= with_entries(select(.key | test("^{{ Escape .Domain.Name }}/(?:includes|excludes)$") ))
`))
)

var EksaDomain = Domain{Name: DomainName, Pubkey: PublicKey}

Functions

func GetDigest

func GetDigest(manifest Manifest, domain Domain) (digest [32]byte, yml []byte, err error)

func GetMetadataInformation

func GetMetadataInformation(manifest Manifest, domain Domain) (signature string, excludes []string, err error)

func ValidateSignature

func ValidateSignature(manifest Manifest, domain Domain) (valid bool, digest [32]byte, yml []byte, err error)

See ./testdata/sign_file.sh for a shell script implementation. This here differs in that it normalizes quoting while the shell script doesnt (yet).

Types

type Domain

type Domain struct {
	Name   string
	Pubkey string
}

type GojqParams

type GojqParams struct {
	Excludes []string
	Domain   Domain
}

type Manifest

type Manifest = metav1.ObjectMetaAccessor