coreos / coreos/coreos-assembler

Support `cosa isobuildinitramfs-fast`

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Dominant language
Go
Stars
393
Forks
193
Avg merge
17h 6m
Merged PRs (30d)
5

Description

Feature Request

Desired Feature

Similarly to cosa buildinitramfs-fast, it would take overrides/initramfs and turn it into a compressed CPIO, but then use coreos-installer iso ignition show --header to get the offset and length of ignition.img and copy the CPIO to that location of a copy of the ISO.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by examining the existing cosa buildinitramfs-fast entry point and how it handles overrides/initramfs. Then inspect the coreos-installer iso ignition show --header invocation and define the new command's completion criteria: create a compressed CPIO, copy the ISO, and place the CPIO at the reported ignition.img offset and length.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
build-system, cli
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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