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examples: Add initial bootc examples (bls & uki)
Signed-off-by: Timothée Ravier <[email protected]>
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‎examples/.gitignore‎

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*.ign
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*.img
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*.qcow2
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backups
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bootc-bls/*.addon.efi
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bootc-bls/*.qcow2
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bootc-bls/bootc
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bootc-bls/extra-fcos/usr/bin/bootc
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bootc-bls/extra-fcos/usr/lib/dracut/modules.d/37bootc/bootc-initramfs-setup
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bootc-bls/extra/usr/bin/bootc
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bootc-bls/extra/usr/lib/dracut/modules.d/37bootc/bootc-initramfs-setup
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bootc-bls/iid
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bootc-bls/secureboot
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bootc-bls/tmp
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systemd-bootx64.efi

‎examples/bootc-bls/Containerfile‎

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FROM quay.io/fedora/fedora-bootc:42
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COPY . /
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RUN rm /etc/yum.repos.d/fedora-cisco-openh264.repo
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RUN dnf install -y fsverity-utils
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RUN passwd -d root
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# need to have bootc-initramfs-setup in the initramfs so we need this
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RUN set -x; \
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kver=$(cd /usr/lib/modules && echo *); \
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dracut -vf --install "/etc/passwd /etc/group" /usr/lib/modules/$kver/initramfs.img $kver;

‎examples/bootc-bls/Containerfile.stage1‎

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FROM quay.io/fedora/fedora-bootc:42
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COPY . /
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RUN rm -f "/etc/yum.repos.d/fedora-cisco-openh264.repo"
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RUN dnf install -y fsverity-utils
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RUN passwd -d root
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# need to have bootc-initramfs-setup in the initramfs so we need this
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RUN set -x; \
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kver=$(cd /usr/lib/modules && echo *); \
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dracut -vf --install "/etc/passwd /etc/group" /usr/lib/modules/$kver/initramfs.img $kver;

‎examples/bootc-bls/Containerfile.stage2‎

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FROM quay.io/fedora/fedora-bootc-base-uki:42 AS base
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FROM base as kernel
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ARG COMPOSEFS_FSVERITY
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RUN --mount=type=secret,id=key \
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--mount=type=secret,id=cert <<EOF
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set -eux
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mkdir -p /etc/kernel /etc/dracut.conf.d
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{
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printf "composefs=${COMPOSEFS_FSVERITY} root=UUID=910678ff-f77e-4a7d-8d53-86f2ac47a823 rw"
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printf " selinux=1 enforcing=0 audit=0"
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printf " console=tty0 console=ttyS0,115000n"
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# printf " console=ttyS0,115000n rd.systemd.debug_shell=1 rd.systemd.default_debug_tty=tty0"
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printf "\n"
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} > /etc/kernel/cmdline
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rm -f "/etc/yum.repos.d/fedora-cisco-openh264.repo"
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dnf install -y systemd-ukify sbsigntools systemd-boot-unsigned
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kver=$(cd /usr/lib/modules && echo *)
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mkdir -p "/boot/EFI/Linux"
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mkdir -p "/boot/EFI/Linux/$kver.efi.extra.d"
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ukify build \
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--linux "/usr/lib/modules/$kver/vmlinuz" \
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--initrd "/usr/lib/modules/$kver/initramfs.img" \
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--uname="${kver}" \
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--cmdline "@/etc/kernel/cmdline" \
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--os-release "@/etc/os-release" \
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--signtool sbsign \
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--secureboot-private-key "/run/secrets/key" \
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--secureboot-certificate "/run/secrets/cert" \
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--measure \
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--json pretty \
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--output "/boot/EFI/Linux/$kver.efi"
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ukify build \
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--cmdline "ignition.firstboot ignition.platform.id=qemu" \
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--signtool sbsign \
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--secureboot-private-key "/run/secrets/key" \
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--secureboot-certificate "/run/secrets/cert" \
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--output "/boot/EFI/Linux/$kver.efi.extra.d/ignition.addon.efi"
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# ukify build \
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# --cmdline "rd.luks.uuid=luks-8ec9cda3-6b77-45d7-bb56-a95cd9e83234" \
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# --signtool sbsign \
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# --secureboot-private-key "/run/secrets/key" \
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# --secureboot-certificate "/run/secrets/cert" \
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# --output "/boot/EFI/Linux/$kver.efi.extra.d/luks.addon.efi"
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sbsign \
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--key "/run/secrets/key" \
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--cert "/run/secrets/cert" \
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"/usr/lib/systemd/boot/efi/systemd-bootx64.efi" \
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--output "/boot/systemd-bootx64.efi"
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EOF
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FROM base as final
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RUN --mount=type=bind,from=kernel,target=/_mount/kernel <<EOF
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kver=$(cd /usr/lib/modules && echo *)
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mkdir -p /boot/EFI/Linux
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# We put the UKI in /boot for now due to composefs verity not being the
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# same due to mtime of /usr/lib/modules being changed
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cp -r /_mount/kernel/boot/* /boot/
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EOF
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FROM base as final-final
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COPY --from=final /boot /boot

‎examples/bootc-bls/build-bootc-bls‎

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#!/bin/bash
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set -eux
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cd "${0%/*}"
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FROM="${FROM:-quay.io/fedora/fedora-bootc:42}"
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TAG="${TAG:-quay.io/fedora/fedora-bootc-bls:42}"
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EXTRA="${EXTRA:-extra}"
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# cargo build --release --features=composefs-backend
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mkdir -p "${EXTRA}/usr/bin/"
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cp ../../target/release/bootc "${EXTRA}/usr/bin/"
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cp ../../target/release/bootc-initramfs-setup "${EXTRA}/usr/lib/dracut/modules.d/37bootc/"
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podman build \
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--from "${FROM}" \
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-t "${TAG}" \
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-f Containerfile \
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"${EXTRA}"

‎examples/bootc-bls/build-bootc-uki-base‎

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#!/bin/bash
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set -eux
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cd "${0%/*}"
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FROM="${FROM:-quay.io/fedora/fedora-bootc:42}"
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TAG="${TAG:-quay.io/fedora/fedora-bootc-base-uki:42}"
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EXTRA="${EXTRA:-extra}"
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# cargo build --release --features=composefs-backend
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mkdir -p "${EXTRA}/usr/bin/"
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cp ../../target/release/bootc "${EXTRA}/usr/bin/"
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cp ../../target/release/bootc-initramfs-setup "${EXTRA}/usr/lib/dracut/modules.d/37bootc/"
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mkdir -p tmp
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podman build \
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--from "${FROM}" \
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-t "${TAG}" \
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-f Containerfile.stage1 \
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--iidfile=iid \
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"${EXTRA}"

‎examples/bootc-bls/build-bootc-uki-final‎

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#!/bin/bash
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set -eux
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cd "${0%/*}"
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# cargo build --release --features=composefs-backend
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FROM="${FROM:-quay.io/fedora/fedora-bootc-base-uki:42}"
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TAG="${TAG:-quay.io/fedora/fedora-bootc-uki:42}"
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cp ../../target/release/bootc .
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mount /dev/vdb3 tmp
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# rm -rf tmp/sysroot
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mkdir -p tmp/sysroot/composefs
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IMAGE_ID="$(sed s/sha256:// iid)"
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./bootc internals cfs --repo tmp/sysroot/composefs oci pull containers-storage:"${IMAGE_ID}"
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COMPOSEFS_FSVERITY=$(./bootc internals cfs --repo tmp/sysroot/composefs oci compute-id --bootable "${IMAGE_ID}")
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# See: https://wiki.archlinux.org/title/Unified_Extensible_Firmware_Interface/Secure_Boot
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# Alternative to generate keys for testing: `sbctl create-keys`
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if [[ ! -d "secureboot" ]]; then
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echo "Generating test Secure Boot keys"
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mkdir secureboot
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pushd secureboot > /dev/null
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uuidgen --random > GUID.txt
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openssl req -newkey rsa:4096 -nodes -keyout PK.key -new -x509 -sha256 -days 3650 -subj "/CN=Test Platform Key/" -out PK.crt
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openssl x509 -outform DER -in PK.crt -out PK.cer
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openssl req -newkey rsa:4096 -nodes -keyout KEK.key -new -x509 -sha256 -days 3650 -subj "/CN=Test Key Exchange Key/" -out KEK.crt
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openssl x509 -outform DER -in KEK.crt -out KEK.cer
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openssl req -newkey rsa:4096 -nodes -keyout db.key -new -x509 -sha256 -days 3650 -subj "/CN=Test Signature Database key/" -out db.crt
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openssl x509 -outform DER -in db.crt -out db.cer
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popd > /dev/null
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fi
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# For debugging, add --no-cache to podman command
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sudo podman build \
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--from "${FROM}" \
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-t "${TAG}" \
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--build-arg=COMPOSEFS_FSVERITY="${COMPOSEFS_FSVERITY}" \
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-f Containerfile.stage2 \
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--secret=id=key,src=secureboot/db.key \
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--secret=id=cert,src=secureboot/db.crt
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# rm -rf tmp/efi
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# mkdir -p tmp/efi
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# ./bootc internals cfs --repo tmp/sysroot/composefs oci pull containers-storage:"${IMAGE_ID}"
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# ./bootc internals cfs --repo tmp/sysroot/composefs oci compute-id --bootable "${IMAGE_ID}"
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# ./bootc internals cfs --repo tmp/sysroot/composefs oci prepare-boot "${IMAGE_ID}" --bootdir tmp/efi
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umount tmp

‎examples/bootc-bls/build-fcos-bls‎

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#!/bin/bash
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export FROM="quay.io/fedora/fedora-coreos:stable"
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export TAG="quay.io/fedora/fedora-coreos-bls:stable"
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export EXTRA="extra-fcos"
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exec ./build-bootc-bls

‎examples/bootc-bls/build-fcos-uki-base‎

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#!/bin/bash
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export FROM="quay.io/fedora/fedora-coreos:stable"
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export TAG="quay.io/fedora/fedora-coreos-base-uki:stable"
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export EXTRA="extra-fcos"
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exec ./build-bootc-uki-base

‎examples/bootc-bls/build-fcos-uki-final‎

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#!/bin/bash
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export FROM="quay.io/fedora/fedora-coreos-base-uki:stable"
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export TAG="quay.io/fedora/fedora-coreos-uki:stable"
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exec ./build-bootc-uki-final

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