Struct OciImageManifest

pub struct OciImageManifest {
    pub schema_version: u8,
    pub media_type: Option<String>,
    pub config: OciDescriptor,
    pub layers: Vec<OciDescriptor>,
    pub artifact_type: Option<String>,
    pub annotations: Option<BTreeMap<String, String>>,
}

The OCI image manifest describes an OCI image.

It is part of the OCI specification, and is defined here

Fields

schema_version: u8

This is a schema version.

The specification does not specify the width of this integer. However, the only version allowed by the specification is 2. So we have made this a u8.

media_type: Option<String>

This is an optional media type describing this manifest.

This property SHOULD be used and remain compatible with earlier versions of this specification and with other similar external formats.

config: OciDescriptor

The image configuration.

This object is required.

layers: Vec<OciDescriptor>

The OCI image layers

The specification is unclear whether this is required. We have left it required, assuming an empty vector can be used if necessary.

artifact_type: Option<String>

The OCI artifact type

This OPTIONAL property contains the type of an artifact when the manifest is used for an artifact. This MUST be set when config.mediaType is set to the empty value. If defined, the value MUST comply with RFC 6838, including the naming requirements in its section 4.2, and MAY be registered with IANA. Implementations storing or copying image manifests MUST NOT error on encountering an artifactType that is unknown to the implementation.

Introduced in OCI Image Format spec v1.1

annotations: Option<BTreeMap<String, String>>

The annotations for this manifest

The specification says “If there are no annotations then this property MUST either be absent or be an empty map.” TO accomodate either, this is optional.

Implementations

impl OciImageManifest

pub fn build( layers: &[ImageLayer], config: &Config, annotations: Option<BTreeMap<String, String>>, ) -> Self

Create a new OciImageManifest using the given parameters

This can be useful to create an OCI Image Manifest with custom annotations.

Trait Implementations

impl Clone for OciImageManifest

fn clone(&self) -> OciImageManifest

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OciImageManifest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for OciImageManifest

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OciImageManifest

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for OciImageManifest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<OciImageManifest> for OciManifest

fn from(m: OciImageManifest) -> Self

Converts to this type from the input type.

impl Serialize for OciImageManifest

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.