kraftkit.sh

module

v0.6.7-306-g22b7b5b Latest Latest Go to latest Published: Oct 24, 2023 License: BSD-3-Clause

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Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/unikraft/kraftkit

README ¶

KraftKit 🚀🐒🧰

Latest release

KraftKit provides a suite of tools and Go-based framework for building custom, minimal, immutable lightweight unikernel virtual machines based on Unikraft: a fast, secure and open-source library operating system.

With KraftKit, you can easily leverage Unikraft and manage specialized, high-performance applications at every stage of their lifecycle: from construction to production.

There are many benefits in running your application as a unikernel: for more information about the performance of unikernels 🚀, the added security 🔒 and a positive impact on the environment 🌱 please check out Unikraft's documentation and the introductory chapters on these impacts.

Features

🔥 Native Firecracker MicroVM support;
📚 Pre-built unikernel app catalog;
🤹‍♀️ Daemonless unikernel VM instance manager;
📦 OCI packaging and distribution support;
🚜 ELF binary / POSIX-compatibility support;
🧰 Go SDK for building unikernels programmatically; and
🚀 much more!

Installation

You can quickly and easily install KraftKit using the interactive installer. Simply run the following command to get started:

curl --proto '=https' --tlsv1.2 -sSf https://get.kraftkit.sh | sh

Alternatively, you can download the binaries from the releases pages.

Container build environment

KraftKit ships a container build environment which you can use instead of installing any dependencies directly on your host. It includes the kraft binary as well as all the additional tools and libraries for building Unikraft unikernels. Simply attach a working directory on your host as a mount path volume mapped to /workspace, e.g.:

docker run -it --rm -v $(pwd):/workspace --entrypoint bash kraftkit.sh/base:latest

The above command will drop you into a container shell. Simply type exit or Ctrl+D to quit.

Quickstart

Building a unikernel with KraftKit is designed to be simple.

Add a Kraftfile to your project directory, which specifies the libraries needed for your unikernel:

specification: v0.5

unikraft: stable

libraries:
  musl: stable

targets:
  - name: default
    architecture: x86_64
    platform: qemu

You can also add an additional Makefile.uk which specifies any source files:

$(eval $(call addlib,apphelloworld))

APPHELLOWORLD_SRCS-y += $(APPHELLOWORLD_BASE)/main.c

Then it is a case of running:

cd path/to/workdir

kraft pkg update
kraft build

You can run your unikernel using:

kraft run

Support, Community & Meetings

If you have any further questions or need more information about KraftKit or Unikraft, please refer to the official Unikraft documentation or ask for help on the Unikraft community forum.

A KraftKit Working Group (WG) meets every Wednesday at 12:30 PM (CET) on Discord. Invites and additional details are available on the Unikraft OSS Public calendar.

License

KraftKit is part of the Unikraft OSS Project and licensed under BSD-3-Clause.

Directories ¶

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Path	Synopsis
api SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
machine SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
machine/v1alpha1 SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
network SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
network/v1alpha1 SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
volume SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
volume/v1alpha1 SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
archive SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cmd
kraft
runu SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.
cmdfactory SPDX-License-Identifier: MIT Copyright (c) 2019, 2019 GitHub Inc.	SPDX-License-Identifier: MIT Copyright (c) 2019, 2019 GitHub Inc.
config SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
exec SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
initrd SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
internal
bootstrap Package bootstrap lets us keep kraftkit initialization logic in one place.	Package bootstrap lets us keep kraftkit initialization logic in one place.
cli SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft
cli/kraft/build SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/clean
cli/kraft/cloud
cli/kraft/cloud/img
cli/kraft/cloud/img/list
cli/kraft/cloud/instance
cli/kraft/cloud/instance/create
cli/kraft/cloud/instance/list SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.
cli/kraft/cloud/instance/logs SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/cloud/instance/remove
cli/kraft/cloud/instance/start SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.
cli/kraft/cloud/instance/status
cli/kraft/cloud/instance/stop
cli/kraft/cloud/utils
cli/kraft/events SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/fetch SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/login SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/logs SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/menu SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/net SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
cli/kraft/net/create SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.	SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.