v0.4.0¶
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 https://github.com/weaveworks/ignite/pull/105
Add the GitOps mode for Ignite using
ignite gitops
https://github.com/weaveworks/ignite/pull/100Documentation: https://github.com/weaveworks/ignite/blob/master/gitops
Make it possible to run
ignite create
andignite run
declaratively https://github.com/weaveworks/ignite/commit/57333646b52a0e1e3a725340e994b2749b39e5bdAdded Prometheus metrics for
ignite-spawn
https://github.com/weaveworks/ignite/commit/94abc529972873db3fa3ee954099a4f62d67b6f3Implemented CNI support https://github.com/weaveworks/ignite/commit/a8897532f9f6a8f5c40025f0f93ab2d24f2c7cd3
API Machinery¶
Added the
ignite.weave.works/v1alpha1
API group with the Ignite API types https://github.com/weaveworks/ignite/commit/ca1edc8e7a61b950811c6145ba2ad53f8cdc2a04API reference: https://github.com/weaveworks/ignite/blob/master/api/ignite.md
This API version will not change in a future version. When improvements are made, it will be to
v1alpha2
etc.
Add a meta API package containing supporting but generic API types for Ignite https://github.com/weaveworks/ignite/commit/09d51abd409ee361e93884baae24ffc92cde63a9
API reference: https://github.com/weaveworks/ignite/blob/master/api/meta.md
Create composable interfaces for the internal API machinery:
Client
->Cache
->Storage
->RawStorage
->Serializer
https://github.com/weaveworks/ignite/pull/93 https://github.com/weaveworks/ignite/pull/96 https://github.com/weaveworks/ignite/pull/99The API Machinery used in Ignite is partly based on the Kubernetes API machinery (
k8s.io/apimachinery
), and hence follows some of the same patterns
New Commands¶
Add the
ignite inspect
command https://github.com/weaveworks/ignite/pull/107Add the
ignite gitops
command https://github.com/weaveworks/ignite/pull/100
Documentation¶
Add user-facing documentation and guides https://github.com/weaveworks/ignite/pull/113
Generate OpenAPI specifications https://github.com/weaveworks/ignite/commit/f1c5bfd473799f712c4c1d8fb276426780c1bf01
Add API type documentation https://github.com/weaveworks/ignite/commit/218c94723f836b8e2cb82886b8664544933ea605
Added architecture diagram https://github.com/weaveworks/ignite/commit/da53f9fc2f5790edacb5d1b541dd4da8a6089673
Added graph of module dependencies https://github.com/weaveworks/ignite/commit/be7cc088c671c5728155fb146367a67d4ada4ea6
Updated Images¶
Base Images¶
weaveworks/ignite-ubuntu:v0.4.0
: https://github.com/weaveworks/ignite/blob/master/images/ubuntu/Dockerfileweaveworks/ignite-centos:v0.4.0
: https://github.com/weaveworks/ignite/blob/master/images/centos/Dockerfileweaveworks/ignite-amazonlinux:v0.4.0
: https://github.com/weaveworks/ignite/blob/master/images/amazonlinux/Dockerfileweaveworks/ignite-alpine:v0.4.0
: https://github.com/weaveworks/ignite/blob/master/images/alpine/Dockerfile
Kernel Images¶
weaveworks/ignite-kernel:4.14.123
: https://github.com/weaveworks/ignite/blob/master/images/kernel/Dockerfileweaveworks/ignite-kernel:4.19.47
(default): https://github.com/weaveworks/ignite/blob/master/images/kernel/Dockerfileweaveworks/ignite-amazon-kernel:v0.4.0
(using4.14.55
): https://github.com/weaveworks/ignite/blob/master/images/amazon-kernel/Dockerfile
Internal Improvements¶
A significant refactor of the whole application has been made to support the new API machinery
Add structured logging https://github.com/weaveworks/ignite/pull/110
Factor out
ignite-spawn
into its own binary running in the container https://github.com/weaveworks/ignite/commit/0a1965e7203877c591dc79504ce257a57fd00480Upgraded the Firecracker version to v0.17.0 https://github.com/weaveworks/ignite/commit/41e3595b9e8d35c24e8cd97037cc1c7045779ee9
Set Go version to 1.12.6 https://github.com/weaveworks/ignite/commit/d00cce7d2b09e97f8d515c4a6161b11fc6c61a2c
Trying it out / Next Steps!¶
In short:
export VERSION=v0.4.0
curl -Lo ignite <https://github.com/weaveworks/ignite/releases/download/${VERSION}/ignite
chmod +x ignite
sudo mv ignite /usr/local/bin
A longer installation guide is available here: https://github.com/weaveworks/ignite/blob/master/docs/installation.md