v0.4.0-rc.1

v0.4.0-rc.1

The first release candidate for Ignite's biggest release yet!

There are many significant changes compared to before:

New Features

• Make base and kernel OCI images composable for a VM. You can now choose what kernel to combine with what base image freely #105
• Add the GitOps mode for Ignite using ignite gitops #100
• Make it possible to run ignite create and ignite run declaratively 5733364
• Added Prometheus metrics for ignite-spawn 94abc52
• Implemented CNI support a889753

API Machinery

• Added the ignite.weave.works/v1alpha1 API group with the Ignite API types ca1edc8
• Add a meta API package containing supporting but generic API types for Ignite 09d51ab
• Create composable interfaces for the internal API machinery: Client -> Cache -> Storage -> RawStorage -> Serializer #93 #96 #99

New Commands

• Add the ignite inspect command #107
• Add the ignite gitops command #100

Documentation

• Add user-facing documentation and guides #113
• Generate OpenAPI specifications f1c5bfd
• Add API type documentation 218c947
• Added architecture diagram da53f9f
• Added graph of module dependencies be7cc08

Internal Improvements

• Add structured logging #110
• Factor out ignite-spawn into its own binary running in the container 0a1965e
• Upgraded the Firecracker version to v0.17.0 41e3595
• Set Go version to 1.12.6 d00cce7

v0.3.0

Major release with significant UX and internal improvements:

• There is no longer a difference between an Ignite image and an OCI image, this is now the same thing.
  • Ignite operates on OCI images directly, for both OS images and kernels. The kernel is expected to be coupled with the image given to ignite run, in /boot/vmlinux.
• It is now possible to do ignite run [OCI image] directly, and everything (e.g. pulling the image) is handled automatically. e.g. ignite run -i weaveworks/ignite-ubuntu.
• Now ignite images shows OCI images that are cached and ready to use, and ignite kernels the kernels already imported from base images.
• Added an example usage guide for running a Kubernetes cluster in HA mode using kubeadm and Ignite.
• Removed ignite build, and ignite image/kernel import; as these are no longer needed
• Importing an image from a tar file is no longer possible, package the contents in an OCI image instead
• Added a new command ignite ssh [vm] and flag: ignite run --ssh. This allows for automatic SSH logins.
• Now Ignite logs user-friendly messages by default. To get machine-readable output, use the --quiet flag.
• Ignite now requires the user to be root. This will be revisited later, when the architecture has changed.
• The command outputs and structure is now more user-friendly.
• Fixed several bugs both under the hood, and user-affecting ones

v0.2.0

Major release with significant improvements

• Ignite is now using devicemapper under the hood, for overlay snapshots for filesystem writes, allowing for image reuse, efficient use of space and way faster builds!
• Added sample Ubuntu 18.04 and CentOS 7 OS images & a 4.19 kernel build
• Automatic network configuration, now the OS image doesn't need to enable DHCP, as that is done in the kernel
• Automatically populate /etc/hosts and /etc/resolv.conf, too
• Add an option to bind a port exposed by the VM to a host port (ignite run -p 80:80)
• Add an option for modifying the kernel command line (ignite run --kernel-args)
• Add an option to copy files from the host into the VM (ignite run --copy-files)
• Add an option to specify the amount of cores, RAM, and overlay size (ignite run --cpus 2 --memory 1024 --size 4GB)
• Removed the need for the Ignite container to run with --privileged
• Allow for force-deletions of images, kernels and vms.
• Added documentation.
• Moved repo from luxas/ignite to weaveworks/ignite

Use it

Download the attached binary, add it to $PATH, and execute the following commands:

$ ignite build weaveworks/ignite-ubuntu:v0.2.0 \
    --name ubuntu-image \
    --import-kernel ubuntu-kernel
$ ignite images
$ ignite kernels
$ ignite run ubuntu-image ubuntu-kernel --name my-vm
$ ignite ps
$ ignite logs my-vm
$ ignite attach my-vm

# Cleanup
$ ignite stop my-vm
$ ignite rm my-vm
$ ignite rmi ubuntu-image
$ ignite rmk ubuntu-kernel

Also make note of the known limitations

v0.1.0

This is the first, proof-of-concept version of Ignite.
It has all the essential features, and a pretty complete implementation of the docker UX.