Crate hd_oci 

hd-oci

OCI image ingestion and Dockerfile translation for hyperdocker.

This crate handles interoperability with the OCI container ecosystem. It can pull OCI images from container registries, unpack their layers into the CAS, and translate Dockerfiles into hd.toml environment specs for a smooth migration path from Docker to hyperdocker.

Key Types

• ImageRef - Reference to an OCI image (registry/repo:tag)
• unpack_layer - Unpacks a tar+gzip OCI layer into the CAS
• UnpackedEntry - A single file extracted from a layer
• translate_dockerfile - Converts a Dockerfile into an hd.toml spec

Example

use hd_oci::{ImageRef, translate_dockerfile};

// Translate Dockerfile content into an EnvSpec
let content = std::fs::read_to_string("Dockerfile").unwrap();
let spec = translate_dockerfile(&content).unwrap();
println!("{:?}", spec);

// Reference an OCI image
let image = ImageRef::parse("ubuntu:22.04").unwrap();
println!("pulling {}", image);

Re-exports

pub use registry::ImageRef;

pub use registry::RegistryError;

pub use unpack::unpack_layer;

pub use unpack::UnpackedEntry;

pub use unpack::UnpackError;

pub use dockerfile::translate_dockerfile;

pub use dockerfile::DockerfileError;

Modules

dockerfile

registry

unpack