Update Twoliter

Skill: Update Twoliter Version

Purpose

Update all repositories in the forest to a new version of Twoliter. This creates git commits in core-kit, kernel-kit, and bottlerocket repositories with the updated version and SHA256 checksums.

When to Use

• Testing a new Twoliter release candidate
• Updating to a new stable Twoliter release
• Preparing pull requests to trigger CI testing with a new Twoliter version

Prerequisites

• All repositories cloned in the forest
• Git configured with author information
• Network access to GitHub releases

Procedure

1. Fetch SHA256 checksums for the new version

Replace X.Y.Z with the target version (e.g., 0.13.0 or 0.13.0-rc1):

# For x86_64
curl -sSL "https://github.com/bottlerocket-os/twoliter/releases/download/vX.Y.Z/twoliter-x86_64-unknown-linux-musl.tar.xz.sha256"

# For aarch64
curl -sSL "https://github.com/bottlerocket-os/twoliter/releases/download/vX.Y.Z/twoliter-aarch64-unknown-linux-musl.tar.xz.sha256"

2. Update all kits

For each kit in the worktree (e.g., bottlerocket-core-kit, bottlerocket-kernel-kit), edit the Makefile:

TWOLITER_VERSION ?= "X.Y.Z"
TWOLITER_SHA256_AARCH64 ?= "<aarch64-sha256>"
TWOLITER_SHA256_X86_64 ?= "<x86_64-sha256>"

Commit each kit:

cd kits/<kit-name>
git add Makefile
git commit -m "chore: bump to twoliter X.Y.Z"
cd ../..

3. Update bottlerocket

Edit bottlerocket/Makefile.toml in the worktree (note the v prefix):

TWOLITER_VERSION = "vX.Y.Z"
TWOLITER_SHA256_AARCH64 = "<aarch64-sha256>"
TWOLITER_SHA256_X86_64 = "<x86_64-sha256>"

Commit:

cd bottlerocket
git add Makefile.toml
git commit -m "chore: bump to twoliter X.Y.Z"

Validation

Verify commits were created in all kits and bottlerocket:

# Check each kit
for kit in kits/*/; do
  echo "=== $(basename $kit) ==="
  (cd "$kit" && git show HEAD --stat)
done

# Check bottlerocket
(cd bottlerocket && git show HEAD --stat)

Each should show:

• Commit message: chore: bump to twoliter X.Y.Z
• 1 file changed, 3 insertions(+), 3 deletions(-)

Common Issues

SHA256 checksum not found:

• Verify the release exists: https://github.com/bottlerocket-os/twoliter/releases/tag/vX.Y.Z
• Check that binary artifacts are attached to the release

Wrong version format:

• Kits use "X.Y.Z" (no v prefix) in their Makefiles
• bottlerocket uses "vX.Y.Z" (with v prefix) in Makefile.toml

Amending commits: If you need to update an existing commit (e.g., moving from RC to stable):

# Make the file changes, then:
git add <file>
git commit --amend -m "chore: bump to twoliter X.Y.Z"

Related Skills

• None (standalone skill)

Notes

• This skill does NOT push commits or create pull requests
• After creating commits, you can push them and create PRs manually
• PRs will trigger CI to test the new Twoliter version
• Schema version changes are rare; only update if release notes specify