Struct RawMeta

pub struct RawMeta {
    pub version: u32,
    pub created: Option<String>,
    pub labels: Option<BTreeMap<String, String>>,
    pub layers: IndexMap<String, String>,
    pub mapping: IndexMap<String, String>,
    pub ordered: Option<bool>,
}

Grouping of metadata about an object.

Fields

version: u32

The metadata format version. Should be set to 1.

created: Option<String>

The image creation timestamp. Format is YYYY-MM-DDTHH:MM:SSZ. Should be synced with the label io.container.image.created.

labels: Option<BTreeMap<String, String>>

Top level labels, to be prefixed to the ones with –label Applied to both the outer config annotations and the inner config labels.

layers: IndexMap<String, String>

The output layers ordered. Provided as an ordered mapping of a unique machine readable strings to a human readable name (e.g., the layer contents). The human-readable name is placed in a layer annotation.

mapping: IndexMap<String, String>

The layer contents. The key is an ostree hash and the value is the machine readable string of the layer the hash belongs to. WARNING: needs to contain all ostree hashes in the input commit.

ordered: Option<bool>

Whether the mapping is ordered. If true, the output tar stream of the layers will reflect the order of the hashes in the mapping. Otherwise, a deterministic ordering will be used regardless of mapping order. Potentially useful for optimizing zstd:chunked compression. WARNING: not currently supported.

Trait Implementations

impl Debug for RawMeta

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

Formats the value using the given formatter.

impl Default for RawMeta

fn default() -> RawMeta

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RawMeta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RawMeta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.