Kairos release v1.2.0

[mudler]

🗺 What's left for release

• 🌱 Re-order packages layout #417
• Persist partition label/uuid mapping whenever we encrypt a partition #408
• 🌱 Don't build image files for arm, just container images #450
• Network config not working in initrd #443
• 🐧 Split alpine images into dedicated channels #457

🔦 Highlights

• Alpine images now got split into two separate channels: one for ubuntu-based kernel and one for opensuse-based ones ( see https://kairos.io/docs/reference/image_matrix/ ).
• ARM images are not released anymore as exceeds Github limits. Built, flashable images are published by our pipelines, and can be downloaded with docker. See the documentation for RaspberryPI to check out details
• Netboot on Alpine should now be functional again Network config not working in initrd #443
• Major improvement and rework of our docs

✅ Release Checklist

• Stage 0 - Finishing Touches
  • Check kairos/packages, and for any needed update
  • Make sure CI tests are passing.
• Stage 1 - Manual testing
  • How: Using the assets from master, make sure that test scenarios not covered by automatic tests are passing, and that docs are still aligned
    • Fedora flavor install, and manual upgrade works
    • ARM images (openSUSE, alpine) boots and manual upgrade works
• Stage 3 - Release
  • Tag the release on master.
• Stage 4 - Update provider-kairos
  • Update the CORE_VERSION file of kairos-io/provider to match the release tag of kairos-io/kairos
  • Tag the release on provider-kairos