v0.7.0

What's Changed

New features

• Copy the files defined in the mount list of the container inside the block rootfs of the guest
• Add support for urunc configuration file
• Add support for virtiofs
• Copy the files defined in the mount list of the container inside the initrd rootfs of the guest
• Improve debugging of urunc created containers in the host side
• Add support for attaching block-based mounts as block devices in the sandbox
• add vAccel support to urunc

Breaking changes

• Use an initrd file to pass information from urunc to urunit for the execution environment of the Linux guest

Internals

• Fix json construction for rumprun unikernels adding support for environment variables
• Update Go and dependencies
• Use the MAC address of veth as the guest's interface MAC address
• Improve network error logging and propagation
• Fail early in invalid unikernel configuration
• Set/Unset a urunit specific environment variable to instruct urunit to set the default route to eth0
• Ensure monitor process is killed in force deleting containers
• Slightly refactor the Exec monolith in unikontainers to improve guest's rootfs type selection and handling.
• Fix crictl configuration generation in crictl testing
• Fix container and snapshot deletion for ctr tests
• Increase tests' timeout due to slow image pulling
• Fix console parameter for Linux over Firecracker in aarch64 and update the seccomp filter of Solo5-hvt in aarch64
• Small refactor of the container delete path and fix entering the container's namespace
• Refactor and fix hook's execution context
• Improve metrics handling in urunc
• Fix handling of failures during the creation of the monitor's containerized environment

CI/CD

• Complete the transition to the new urunc repository
• Add scorecard workflow
• Use specific versions for tools and services
• Fix the commit and repo spell checker
• Add arm64 tests over Solo5-spt
• Add automated release action
• Add dependabot
• Prefetch Go packages before running end-to-end tests
• Add end-to-end Kubernetes tests using kind
• Harden workflows
• Apply security best practices
• Refactor the handling of Go version for CI jobs
• Set the correct image digest for Go alpine in urunc-deploy image building
• Cancel rest of tests in case of an error
• Introduce nightly tests
• Remove dependency on self-hosted runners
• Add testing for urunc-deploy

Documentation

• Update Kubernetes tutorial
• Update Linux tutorial with the role of urunit
• Update instructions for installing Go and remove obsolete image references
• Add tutorial for using urunc with kind
• Centralize the version definition of the tools mentioned in docs
• Add instructions fo using blockfile snapshotter with urunc
• Provide documentation for using the new monitors-build repository

Contributors

Big thanks to all contributors in urunc:

New: 🎉 Maintainers: 🛠️

• 🎉Anastasia Mallikopoulou - @amallikopoulou
• 🎉sankalp - @codesmith25103
• 🎉Dionisia Koronellou - @DionisiaK4
• 🎉Medfouni Khitem - @KhitemMed
• 🎉Maria Gkeka - @mgkeka-nbfc
• 🎉Panagiotis Mavrikos - @panosmaurikos
• 🎉Vasilis Liaskovitis - @vliaskov
• 🎉zyfy29 - @zyfy29
• 🛠️Charalampos Mainas - @cmainas
• 🛠️Georgios Ntoutsos - @gntouts
• 🛠️Anastassios Nanos - @ananos

Full Changelog: v0.6.0...v0.7.0

v0.6.0

What's Changed

New features

• Add support for mewz unikernels
• Add support for cli options at the runtime
• Add support for environment variables, by passing the environment variables of the container in the unikernel
• Add support for existing containers, by booting a minimal Linux VM
• Add support for the creation and chroot to a new rootfs for monitor execution
• Add support for mounting volumes in the container's rootfs
• Add support for using the container;s rootfs as the rootfs of the guest through 9pfs shared-fs.

Breaking changes

• Replace useDMBlock annotation with mountRootfs.

Internals

• Improve logging and error handling
• Update Unikraft cli handling to replicate kraftkit's behavior

CI/CD

• Add workflow to publish docs automatically
• Migrate to GH runners for all CI actions
• fix invocation and update urunc-deploy building action
• Improve CI, by removing hardcoded repo values, running workflows in the correct context and removing org secret dependencies

Misc

• Add security policy
• Give a new look in urunc's documentation, with the new logo, colors, footer, and easier copying of commands
• Uodate knative tutorial
• Add project governance
• Fix typos and update urunc documentation
• Update README with new info about urunc's community, Slack channel, roadmap and OpenSSF badge.

Full Changelog: v0.5.0...v0.6.0

urunc v0.5.0 release

What's Changed

New features

• Add support for all namespaces, except user namespaces
• Add support for MirageOS
• Add support for urunc_deploy and allow the easy installation and configuration of urunc, along with monitors, in existing Kubernetes clusters.
• Add support for non-root monitor execution

Internals

• Update Go to version 1.24.1
• Update the unikernel interface and allow the use of unikernel-specific cli options when we spawn the Monitor:
  • MonitorBlockCli(): For block specific cli options
  • MonitorNetCli(): For net specific cli options
  • MonitorCli(): For other monitor cli options
• Spawn the monitor from container's rootfs
• Fix handling of devmapper and container's rootfs path.
• Fix readiness probe environment variable for Knative

Building and CI/CD

• Handle warnings during container operations in end-to-end testing
• Update runners
• Transition to Incus for our end-to-end testing
• Add workflow to cleanup stale issues/PRs

Misc

• Update yaml in kubernetes tutorial
• Add maintainers and Code of Conduct
• Add EKS tutorial in our docs
• Add Knative tutorial in our docs
• Update documentation regarding unikernel packaging, adding various examples and cases

Full Changelog: v0.4.0...v0.5.0

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.