Incremental urunc v0.4.0 release

What's Changed

New features

• Introduce support for seccomp in VMMs
• Support of block images inside urunc's container image
• Support of configurable memory using memory limit from container's spec
• Support for docker

Internals

• network cleanup: delete TC rules and TAP device upon killing the unikernel
• Enhance unikernel interface with functions to check supporting features:
  • Init() initializes the unikernel struct based on the unikernel arguments
  • SupportsBlock() returns a bool value, based on the block support of the respective unikernel.
  • SupportsFS() takes as an argument a filesystem type and checks if the unikernel supports that type.
• Partial unit tests for pkg/unikontainers
• Refactor devmapper snapshot handling
• Define new environment variable USE_DEVMAPPER_AS_BLOCKto use devmapper's snapshot as a block image for the unikernel
• Handle newer versions of Unikraft unikernels
• Enable NAT and IP forwarding in static networking

Annotations

• com.urunc.unikernel.block: Define the path to the block image for the unikernel inside the container image
• com.urunc.unikernel.blkMntPoint: Define the mountpoint of the block image for the unikernel
• com.urunc.unikernel.unikernelVersion: Specify the version of unikernel

Building and CI/CD

• Add action for unit testing
• Refactor Makefile and enhance its targets
• Restructure CI jobs and transition to ARC runners

Misc

• Bug fixes
• Refactor handling of normal containers and replaces constants in paths and annotations
• Unikraft FC boot on arm64
• Huge refactor and update of urunc's documentation. The documentation is available at https://nubificus.github.io/urunc/

Full Changelog: v0.3.0...v0.4.0

Incremental urunc v0.3.0 release

What's Changed

• Fix race condition of accessing the init socket on large number of containers by @cmainas in #15
• Handle unikernels requiring initrd by @gntouts in #16
• Execute hooks concurrently to improve performance by @gntouts in #17
• Add support for booting Unikraft unikernels over Qemu by @cmainas in #18
• Add timestamps to measure performance by @gntouts in #19
• Add end-to-end tests for Qemu-Unikraft by @gntouts in #20
• Introduce support to boot up Firecracker with initrd by @cmainas in #21
• Refactor end-to-end tests, Add firecracker-unikraft tests by @gntouts in #22
• Wrap timestamp collection in logging function by @gntouts in #24
• Add installation instructions for hypervisors by @gntouts in #25
• ci: Add action to build & append git trailer by @gntouts in #27
• ci: Update shutdown flag by @ananos in #31
• hypervisors: Add machine option by @gntouts in #33
• internal: move constants to separate pkg by @gntouts in #34
• ci: Remove generated ssh key after artifact creation by @ananos in #35
• Add a CONTRIBUTING document by @cmainas in #29
• Network: Add static network mode by @gntouts in #30

New Contributors

• @cmainas made their first contribution in #15
• @ananos made their first contribution in #31

Full Changelog: v0.2.0...v0.3.0

urunc v0.2.0

Incremental urunc v0.2.0 release

Changelog

• (1ae5d5b) Update installation instructions, add linting instructions (@gntouts)

• (89fa71c) Add tests, update workflow triggers (@gntouts)

  • Add end to end tests for hvt hypervisor and rumprun unikernels using ctr, nerdct, crictl.

• (9271e4f) Refactor urunc to enhance code organization and maintainability (@gntouts)

  • Move urunc cmd tool code under cmd directory.
  • Introduce 'unikontainers' package to separate urunc cmd tool from the underlying logic responsible for handling unikernel containers.
  • Separate hypervisor and unikernel functionality into distinct packages.
  • Update solo5-hvt to v0.6.9
  • Rewrite IPC mechanism to allow for retrying failed communication attempts.
  • Use a runc-compatible logging configuration.

• (3b577eb) Fix typo on Installation.md (#2) (@johnp41)

urunc v0.1.0

Initial v0.1.0 release of urunc.