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reusable-build.yml
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name: Cache Kernels
on:
merge_group:
schedule:
- cron: "5 0 * * *" # 0005 UTC everyday
workflow_dispatch:
pull_request:
branches:
- main
env:
IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
concurrency:
group: ${{ github.workflow }}-${{ github.ref || github.run_id }}-${{ inputs.fedora_version }}
cancel-in-progress: true
jobs:
build:
name: kernel-cache
runs-on: ubuntu-24.04
permissions:
contents: read
packages: write
id-token: write
strategy:
fail-fast: false
matrix:
kernel_flavor:
- asus
- fsync
- fsync-ba
- surface
- main
- coreos-stable
- coreos-testing
fedora_version:
- 39
- 40
exclude:
- fedora_version: 39
kernel_flavor: asus
- fedora_version: 39
kernel_flavor: coreos-testing
- fedora_version: 39
kernel_flavor: fsync
- fedora_version: 39
kernel_flavor: fsync-ba
steps:
- name: Checkout Push to Registry action
uses: actions/checkout@v4
- name: Pull Image
uses: Wandalen/[email protected]
with:
attempt_limit: 3
attempt_delay: 15000
command: |
build_image="quay.io/fedora/fedora:${{ matrix.fedora_version }}"
echo "build_image=$build_image" >> "$GITHUB_ENV"
podman pull "$build_image"
- name: Get Kernel Version
id: Version
uses: Wandalen/[email protected]
with:
attempt_limit: 3
attempt_delay: 15000
command: |
if [[ ${{ matrix.kernel_flavor }} =~ asus|fsync|fsync-ba|surface ]]; then
container_name="fq-$(uuidgen)"
dnf="podman exec $container_name dnf"
podman run --entrypoint /bin/bash --name "$container_name" -dt "${{ env.build_image }}"
$dnf install -y dnf-plugins-core
fi
coreos_kernel () {
coreos_version=${1}
image_linux=$(skopeo inspect docker://quay.io/fedora/fedora-coreos:${coreos_version} | jq -r '.Labels["ostree.linux"]')
major_minor_patch=$(echo $image_linux | grep -oP '^\d+\.\d+\.\d+')
kernel_rel_part=$(echo $image_linux | grep -oP '^\d+\.\d+\.\d+\-\K([123][0]{2})')
arch=$(echo $image_linux | grep -oP 'fc\d+\.\K.*$')
kernel_rel="$kernel_rel_part.fc${{ matrix.fedora_version }}"
kernel_version="$major_minor_patch-$kernel_rel.$arch"
URL="https://kojipkgs.fedoraproject.org/packages/kernel/"$major_minor_patch"/"$kernel_rel"/"$arch"/kernel-"$kernel_version".rpm"
echo "Querying koji for ${coreos_version} kernel: $kernel_version"
echo "$URL"
HTTP_RESP=$(curl -sI "$URL" | grep ^HTTP)
if grep -qv "200 OK" <<< "${HTTP_RESP}"; then
echo "Koji failed to find $coreos_version kernel: $kernel_version"
case "$kernel_rel_part" in
"300")
kernel_rel_part="200"
;;
"200")
kernel_rel_part="100"
;;
"100")
;;
*)
echo "unexpected kernel_rel_part ${kernel_rel_part}"
;;
esac
kernel_rel="$kernel_rel_part.fc${{ matrix.fedora_version }}"
kernel_version="$major_minor_patch-$kernel_rel.$arch"
URL="https://kojipkgs.fedoraproject.org/packages/kernel/"$major_minor_patch"/"$kernel_rel"/"$arch"/kernel-"$kernel_version".rpm"
echo "Re-querying koji for ${coreos_version} kernel: $kernel_version"
echo "$URL"
HTTP_RESP=$(curl -sI "$URL" | grep ^HTTP)
if grep -qv "200 OK" <<< "${HTTP_RESP}"; then
echo "Koji failed to find $coreos_version kernel: $kernel_version"
fi
fi
if grep -q "200 OK" <<< "${HTTP_RESP}"; then
linux=$kernel_version
fi
}
case ${{ matrix.kernel_flavor }} in
"asus")
$dnf copr enable -y lukenukem/asus-kernel
linux=$($dnf repoquery --repoid copr:copr.fedorainfracloud.org:lukenukem:asus-kernel --whatprovides kernel | sort -V | tail -n1 | sed 's/.*://')
;;
"fsync")
$dnf copr enable -y sentry/kernel-fsync
linux=$($dnf repoquery --repoid copr:copr.fedorainfracloud.org:sentry:kernel-fsync --whatprovides kernel | sort -V | tail -n1 | sed 's/.*://')
;;
"fsync-ba")
$dnf copr enable -y sentry/kernel-ba
linux=$($dnf repoquery --repoid copr:copr.fedorainfracloud.org:sentry:kernel-ba --whatprovides kernel | sort -V | tail -n1 | sed 's/.*://')
;;
"surface")
$dnf config-manager --add-repo=https://pkg.surfacelinux.com/fedora/linux-surface.repo
linux=$($dnf repoquery --repoid linux-surface --whatprovides kernel-surface | sort -V | tail -n1 | sed 's/.*://')
;;
"main")
linux=$(skopeo inspect docker://quay.io/fedora-ostree-desktops/base:${{ matrix.fedora_version }} | jq -r '.Labels["ostree.linux"]' )
;;
"coreos-stable")
coreos_kernel stable
;;
"coreos-testing")
coreos_kernel testing
;;
*)
echo "unexpected kernel_flavor '${{ matrix.kernel_flavor }}' for query"
;;
esac
if [ -z "$linux" ] || [ "null" = "$linux" ]; then
echo "inspected image linux version must not be empty or null"
exit 1
fi
major=$(echo "$linux" | cut -d '.' -f 1)
minor=$(echo "$linux" | cut -d '.' -f 2)
patch=$(echo "$linux" | cut -d '.' -f 3)
kernel_major_minor_patch="${major}.${minor}.${patch}"
echo "Kernel Version is ${linux}"
echo "kernel_release=${linux}" >> $GITHUB_ENV
echo "kernel_major_minor_patch=${kernel_major_minor_patch}" >> $GITHUB_ENV
- name: Generate Tags
id: generate_tags
shell: bash
run: |
tag="${{ env.kernel_release }}"
short_tag=$(echo ${{ env.kernel_major_minor_patch }} | cut -d "-" -f 1)
COMMIT_TAGS=()
COMMIT_TAGS+=("pr-${{ github.event.number }}-${{ matrix.fedora_version }}")
COMMIT_TAGS+=("pr-${{ github.event.number }}-${{ matrix.fedora_version }}-${short_tag}")
COMMIT_TAGS+=("pr-${{ github.event.number }}-${{ matrix.fedora_version }}-${tag}")
COMMIT_TAGS+=("pr-${{ github.event.number }}-${tag}")
COMMIT_TAGS+=("${GITHUB_SHA::7}-${{ matrix.fedora_version }}")
COMMIT_TAGS+=("${GITHUB_SHA::7}-${{ matrix.fedora_version }}-${short_tag}")
COMMIT_TAGS+=("${GITHUB_SHA::7}-${{ matrix.fedora_version }}-${tag}")
COMMIT_TAGS+=("${GITHUB_SHA::7}-${tag}")
BUILD_TAGS=()
BUILD_TAGS+=("${{ matrix.fedora_version }}")
BUILD_TAGS+=(${{ matrix.fedora_version }}-${short_tag})
BUILD_TAGS+=(${{ matrix.fedora_version }}-${tag})
BUILD_TAGS+=(${tag})
if [[ "${{ github.event_name }}" == "pull_request" ]]; then
# echo "Generated the following commit tags: "
# for TAG in "${COMMIT_TAGS[@]}"; do
# echo "${TAG}"
# done
alias_tags=("${COMMIT_TAGS[@]}")
else
alias_tags=("${BUILD_TAGS[@]}")
fi
echo "Generated the following tags: "
for TAG in "${alias_tags[@]}"; do
echo "${TAG}"
done
echo "alias_tags=${alias_tags[*]}" >> $GITHUB_OUTPUT
echo "date=$(date '+%Y%m%d.0')" >> $GITHUB_ENV
- name: Build Metadata
uses: docker/metadata-action@v5
id: meta
with:
images: |
${{ matrix.kernel_flavor }}-kernel
labels: |
org.opencontainers.image.title=${{ matrix.kernel_flavor }} cached kernel
org.opencontainers.image.description=A caching layer for kernels. Contains ${{ matrix.kernel_flavor }} kernel.
org.opencontainers.image.version=${{ env.kernel_release}}.${{ env.date }}
ostree.linux=${{ env.kernel_release }}
io.artifacthub.package.readme-url=https://raw.githubusercontent.com/${{ github.repository }}/main/README.md
io.artifacthub.package.logo-url=https://avatars.githubusercontent.com/u/1728152?s=200&v=4
- name: Retrieve Signing Key
if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group'
shell: bash
run: |
mkdir -p certs
if [[ "${{ github.event_name }}" == 'pull_request' ]]; then
echo "This should not have run... exiting..."
exit 1
else
echo "${{ secrets.KERNEL_PRIVKEY }}" > certs/private_key.priv
echo "${{ secrets.AKMOD_PRIVKEY_20230518 }}" > certs/private_key_2.priv
# DEBUG: get character count of key
wc -c certs/private_key.priv
wc -c certs/private_key_2.priv
fi
- name: Build Image
id: build_image
uses: redhat-actions/buildah-build@v2
with:
containerfiles: |
./Containerfile
image: ${{ matrix.kernel_flavor }}-kernel
tags: ${{ steps.generate_tags.outputs.alias_tags }}
build-args: |
FEDORA_VERSION=${{ matrix.fedora_version }}
KERNEL_VERSION=${{ env.kernel_release }}
KERNEL_FLAVOR=${{ matrix.kernel_flavor }}
DUAL_SIGN=true
labels: ${{ steps.meta.outputs.labels }}
oci: false
- name: Check Secureboot Signatures
shell: bash
run: |
set -x
if [[ ! $(command -v sbverify) || ! $(command -v curl) || ! $(command -v openssl) || ! $(command -v rpm2cpio) ]]; then
sudo apt update
sudo apt install sbsigntool curl openssl rpm2cpio
fi
podman create --name "${{ matrix.kernel_flavor}}"-kernel-"$(echo "${{ steps.generate_tags.outputs.alias_tags }}" | cut -d " " -f 1)" "${{ matrix.kernel_flavor}}"-kernel:$(echo "${{ steps.generate_tags.outputs.alias_tags }}" | cut -d " " -f 1) sh
podman export "${{ matrix.kernel_flavor}}"-kernel-"$(echo "${{ steps.generate_tags.outputs.alias_tags }}" | cut -d " " -f 1)" > /tmp/"${{ matrix.kernel_flavor}}"-kernel-"$(echo "${{ steps.generate_tags.outputs.alias_tags }}" | cut -d " " -f 1)".tar
tar xvf /tmp/"${{ matrix.kernel_flavor}}"-kernel-"$(echo "${{ steps.generate_tags.outputs.alias_tags }}" | cut -d " " -f 1)".tar -C /tmp
cd /tmp/tmp/rpms/
if [[ "${{ matrix.kernel_flavor }}" == "surface" ]]; then
rpm2cpio kernel-surface-core-"${{ env.kernel_release }}".rpm | cpio -idmv
else
rpm2cpio kernel-core-"${{ env.kernel_release }}".rpm | cpio -idmv
fi
cd ./lib/modules/"${{ env.kernel_release }}"/
sbverify --list vmlinuz
if [[ "${{ github.event_name }}" == "pull_request" ]]; then
curl --retry 3 -Lo kernel-sign.der https://github.com/ublue-os/kernel-cache/raw/main/certs/public_key.der.test
curl --retry 3 -Lo akmods.der https://github.com/ublue-os/kernel-cache/raw/main/certs/public_key_2.der.test
else
curl --retry 3 -Lo kernel-sign.der https://github.com/ublue-os/kernel-cache/raw/main/certs/public_key.der
curl --retry 3 -Lo akmods.der https://github.com/ublue-os/kernel-cache/raw/main/certs/public_key_2.der
fi
openssl x509 -in kernel-sign.der -out kernel-sign.crt
openssl x509 -in akmods.der -out akmods.crt
sbverify --cert kernel-sign.crt vmlinuz || exit 1
sbverify --cert akmods.crt vmlinuz || exit 1
cd $HOME
- name: Lowercase Registry
id: registry_case
uses: ASzc/change-string-case-action@v6
with:
string: ${{ env.IMAGE_REGISTRY }}
- name: Push to GHCR
uses: Wandalen/[email protected]
id: push
if: github.event_name != 'pull_request'
env:
REGISTRY_USER: ${{ github.actor }}
REGISTRY_PASSWORD: ${{ github.token }}
with:
action: redhat-actions/push-to-registry@v2
attempt_limit: 3
attempt_delay: 15000
with: |
image: ${{ steps.build_image.outputs.image }}
tags: ${{ steps.build_image.outputs.tags }}
registry: ${{ steps.registry_case.outputs.lowercase }}
username: ${{ env.REGISTRY_USER }}
password: ${{ env.REGISTRY_PASSWORD }}
extra-args: |
--disable-content-trust
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
if: github.event_name != 'pull_request'
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
# Sign container
- uses: sigstore/[email protected]
if: github.event_name != 'pull_request'
- name: Sign container image
if: github.event_name != 'pull_request'
run: |
cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ steps.registry_case.outputs.lowercase }}/${{ steps.build_image.outputs.image }}@${TAGS}
env:
TAGS: ${{ steps.push.outputs.outputs && fromJSON(steps.push.outputs.outputs).digest }}
COSIGN_EXPERIMENTAL: false
COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}
- name: Echo outputs
if: github.event_name != 'pull_request'
run: |
echo "${{ toJSON(steps.push.outputs) }}"
check:
name: Check all builds successful
runs-on: ubuntu-latest
needs: [build]
steps:
- name: Exit on failure
if: ${{ needs.build.result == 'failure' }}
shell: bash
run: exit 1
- name: Exit
shell: bash
run: exit 0