chore(cleanup): remove legacy OS technology demo (#256)

.github/workflows/os.yml

@@ -1,37 +0,0 @@
-name: os
-on:
-  pull_request:
-    branches:
-    - main
-  merge_group:
-    branches:
-    - main
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        arch:
-        - x86_64
-        - aarch64
-    env:
-      TARGET_ARCH: "${{ matrix.arch }}"
-    name: os build ${{ matrix.arch }}
-    steps:
-    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
-      with:
-        egress-policy: audit
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-      with:
-        submodules: recursive
-    - uses: dtolnay/rust-toolchain@d0e72ca3bfdc51937a4f81431ccbed269ef9f2a2 # stable
-      with:
-        targets: "${{ matrix.arch }}-unknown-linux-gnu,${{ matrix.arch }}-unknown-linux-musl"
-    - run: ./hack/ci/install-linux-deps.sh
-    - run: ./hack/os/build.sh
-    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
-      with:
-        name: krata-os-${{ matrix.arch }}
-        path: "target/os/krata-${{ matrix.arch }}.qcow2"
-        compression-level: 0

.github/workflows/release-binaries.yml

@@ -41,8 +41,6 @@ jobs:
     - run: "./hack/ci/assemble-release-assets.sh debian ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/dist/*.deb"
     - run: ./hack/dist/apk.sh
     - run: "./hack/ci/assemble-release-assets.sh alpine ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/dist/*_${{ matrix.arch }}.apk"
-    - run: ./hack/os/build.sh
-    - run: "./hack/ci/assemble-release-assets.sh os ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/os/krata-${{ matrix.arch }}.qcow2"
     - run: "./hack/ci/upload-release-assets.sh ${{ github.event.release.tag_name }}"
       env:
         GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

hack/ci/assemble-release-assets.sh

@@ -47,9 +47,6 @@ do
   elif [ "${FORM}" = "bundle-systemd" ]
   then
     asset "${SOURCE_FILE_PATH}" "target/assets/krata-systemd_${TAG_NAME}_${PLATFORM}.tgz"
-  elif [ "${FORM}" = "os" ]
-  then
-    asset "${SOURCE_FILE_PATH}" "target/assets/krata_${TAG_NAME}_${PLATFORM}.qcow2"
   else
     echo "ERROR: Unknown form '${FORM}'"
     exit 1

hack/code/shellcheck.sh

@@ -5,4 +5,3 @@ REAL_SCRIPT="$(realpath "${0}")"
 cd "$(dirname "${REAL_SCRIPT}")/../.."
 
 find hack -type f -name '*.sh' -print0 | xargs -0 shellcheck -x
-find os/internal -type f -name '*.sh' -print0 | xargs -0 shellcheck -x

hack/os/build.sh

@@ -1,119 +0,0 @@
-#!/bin/sh
-set -e
-
-REAL_SCRIPT="$(realpath "${0}")"
-cd "$(dirname "${REAL_SCRIPT}")/../.."
-
-./hack/dist/apk.sh
-KRATA_VERSION="$(./hack/dist/version.sh)"
-TARGET_ARCH="$(./hack/build/arch.sh)"
-TARGET_ARCH_ALT="$(KRATA_ARCH_KERNEL_NAME=1 ./hack/build/arch.sh)"
-CROSS_COMPILE="$(./hack/build/cross-compile.sh)"
-
-TARGET_DIR="${PWD}/target"
-TARGET_OS_DIR="${TARGET_DIR}/os"
-mkdir -p "${TARGET_OS_DIR}"
-cp "${TARGET_DIR}/dist/krata_${KRATA_VERSION}_${TARGET_ARCH}.apk" "${TARGET_OS_DIR}/krata-${TARGET_ARCH}.apk"
-
-DOCKER_FLAGS="--platform linux/${TARGET_ARCH_ALT}"
-if [ -t 0 ]
-then
- DOCKER_FLAGS="${DOCKER_FLAGS} -it"
-fi
-
-if [ "${CROSS_COMPILE}" = "1" ]
-then
-  docker run --privileged --rm tonistiigi/binfmt --install all
-fi
-
-ROOTFS="${TARGET_OS_DIR}/rootfs-${TARGET_ARCH}.tar"
-
-# shellcheck disable=SC2086
-docker run --rm --privileged -v "${PWD}:/mnt" ${DOCKER_FLAGS} alpine:latest "/mnt/os/internal/stage1.sh" "${TARGET_ARCH}"
-sudo chown "${USER}:${GROUP}" "${ROOTFS}"
-sudo modprobe nbd
-
-next_nbd_device() {
-  find /dev -maxdepth 2 -name 'nbd[0-9]*' | while read -r DEVICE
-  do
-    if [ "$(sudo blockdev --getsize64 "${DEVICE}")" = "0" ]
-    then
-      echo "${DEVICE}"
-      break
-    fi
-  done
-}
-
-NBD_DEVICE="$(next_nbd_device)"
-
-if [ -z "${NBD_DEVICE}" ]
-then
-  echo "ERROR: unable to allocate nbd device" > /dev/stderr
-  exit 1
-fi
-
-OS_IMAGE="${TARGET_OS_DIR}/krata-${TARGET_ARCH}.qcow2"
-EFI_PART="${NBD_DEVICE}p1"
-ROOT_PART="${NBD_DEVICE}p2"
-ROOT_DIR="${TARGET_OS_DIR}/root-${TARGET_ARCH}"
-EFI_DIR="${ROOT_DIR}/boot/efi"
-
-cleanup() {
-  trap '' EXIT HUP INT TERM
-  sudo umount -R "${ROOT_DIR}" > /dev/null 2>&1 || true
-  sudo umount "${EFI_PART}" > /dev/null 2>&1 || true
-  sudo umount "${ROOT_PART}" > /dev/null 2>&1 || true
-  sudo qemu-nbd --disconnect "${NBD_DEVICE}" > /dev/null 2>&1 || true
-  sudo rm -rf "${ROOT_DIR}"
-}
-
-rm -f "${OS_IMAGE}"
-qemu-img create -f qcow2 "${OS_IMAGE}" "2G"
-
-trap cleanup EXIT HUP INT TERM
-sudo qemu-nbd --connect="${NBD_DEVICE}" --cache=writeback -f qcow2 "${OS_IMAGE}"
-printf '%s\n' \
-			 'label: gpt' \
-			 'name=efi,type=U,size=128M,bootable' \
-			 'name=system,type=L' | sudo sfdisk "${NBD_DEVICE}"
-sudo mkfs.fat -F32 -n EFI "${EFI_PART}"
-sudo mkfs.ext4 -L root -E discard "${ROOT_PART}"
-
-mkdir -p "${ROOT_DIR}"
-
-sudo mount -t ext4 "${ROOT_PART}" "${ROOT_DIR}"
-sudo mkdir -p "${EFI_DIR}"
-sudo mount -t vfat "${EFI_PART}" "${EFI_DIR}"
-
-sudo tar xf "${ROOTFS}" -C "${ROOT_DIR}"
-ROOT_UUID="$(sudo blkid "${ROOT_PART}" | sed -En 's/.*\bUUID="([^"]+)".*/\1/p')"
-EFI_UUID="$(sudo blkid "${EFI_PART}" | sed -En 's/.*\bUUID="([^"]+)".*/\1/p')"
-echo "${ROOT_UUID}"
-
-sudo mkdir -p "${ROOT_DIR}/proc" "${ROOT_DIR}/dev" "${ROOT_DIR}/sys"
-sudo mount -t proc none "${ROOT_DIR}/proc"
-sudo mount --bind /dev "${ROOT_DIR}/dev"
-sudo mount --make-private "${ROOT_DIR}/dev"
-sudo mount --bind /sys "${ROOT_DIR}/sys"
-sudo mount --make-private "${ROOT_DIR}/sys"
-
-sudo cp "${PWD}/os/internal/stage2.sh" "${ROOT_DIR}/stage2.sh"
-echo "${ROOT_UUID}" | sudo tee "${ROOT_DIR}/root-uuid" > /dev/null
-sudo mv "${ROOT_DIR}/etc/resolv.conf" "${ROOT_DIR}/etc/resolv.conf.orig"
-sudo cp "/etc/resolv.conf" "${ROOT_DIR}/etc/resolv.conf"
-sudo chroot "${ROOT_DIR}" /bin/sh -c "/stage2.sh ${TARGET_ARCH} ${TARGET_ARCH_ALT}"
-sudo mv "${ROOT_DIR}/etc/resolv.conf.orig" "${ROOT_DIR}/etc/resolv.conf"
-sudo rm -f "${ROOT_DIR}/stage2.sh"
-sudo rm -f "${ROOT_DIR}/root-uuid"
-
-{
-  echo "# krata fstab"
-  echo "UUID=${ROOT_UUID} / ext4 relatime 0 1"
-  echo "UUID=${EFI_UUID} / vfat rw,relatime,fmask=0133,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro 0 2"
-} | sudo tee "${ROOT_DIR}/etc/fstab" > /dev/null
-
-cleanup
-
-OS_SMALL_IMAGE="${TARGET_OS_DIR}/krata-${TARGET_ARCH}.small.qcow2"
-qemu-img convert -O qcow2 "${OS_IMAGE}" "${OS_SMALL_IMAGE}"
-mv -f "${OS_SMALL_IMAGE}" "${OS_IMAGE}"

os/internal/stage1.sh

@@ -1,78 +0,0 @@
-#!/bin/sh
-set -e
-
-TARGET_ARCH="${1}"
-apk add --update-cache alpine-base \
-  linux-lts linux-firmware-none \
-  mkinitfs dosfstools e2fsprogs \
-  tzdata chrony
-
-apk add --allow-untrusted "/mnt/target/os/krata-${TARGET_ARCH}.apk"
-
-for SERVICE in kratad kratanet
-do
-  rc-update add "${SERVICE}" default
-done
-
-apk add xen xen-hypervisor
-
-rc-update add xenstored default
-
-for MODULE in xen-netblock xen-blkback tun tap
-do
-  echo "${MODULE}" >> /etc/modules
-done
-
-cat > /etc/network/interfaces <<-EOF
-  auto eth0
-	iface eth0 inet dhcp
-EOF
-
-for SERVICE in networking chronyd
-do
-  rc-update add "${SERVICE}" default
-done
-
-for SERVICE in devfs dmesg mdev hwdrivers cgroups
-do
-  rc-update add "${SERVICE}" sysinit
-done
-
-for SERVICE in modules hwclock swap hostname sysctl bootmisc syslog seedrng
-do
-  rc-update add "${SERVICE}" boot
-done
-
-for SERVICE in killprocs savecache mount-ro
-do
-  rc-update add "${SERVICE}" shutdown
-done
-
-echo 'root:krata' | chpasswd
-echo 'krata' > /etc/hostname
-
-{
-  echo '# krata resolver configuration'
-  echo 'nameserver 1.1.1.1'
-  echo 'nameserver 1.0.0.1'
-  echo 'nameserver 2606:4700:4700::1111'
-  echo 'nameserver 2606:4700:4700::1001'
-} > /etc/resolv.conf
-
-{
-  echo 'Welcome to krataOS!'
-  echo 'You may now login to the console to manage krata.'
-} > /etc/issue
-
-echo > /etc/motd
-
-ln -s /usr/share/zoneinfo/UTC /etc/localtime
-
-rm -rf /var/cache/apk/*
-rm -rf /.dockerenv
-
-cd /
-rm -f "/mnt/target/os/rootfs-${TARGET_ARCH}.tar"
-tar cf "/mnt/target/os/rootfs-${TARGET_ARCH}.tar" --numeric-owner \
-  --exclude 'mnt/**' --exclude 'proc/**' \
-  --exclude 'sys/**' --exclude 'dev/**' .

os/internal/stage2.sh

@@ -1,32 +0,0 @@
-#!/bin/sh
-set -e
-
-TARGET_ARCH="${1}"
-TARGET_ARCH_ALT="${2}"
-apk add --update-cache grub-efi
-grub-install --target="${TARGET_ARCH_ALT}-efi" --efi-directory=/boot/efi --no-nvram --skip-fs-probe --bootloader-id=BOOT
-
-FROM_EFI_FILE="grubx64.efi"
-TO_EFI_FILE="BOOTX64.efi"
-if [ "${TARGET_ARCH}" = "aarch64" ]
-then
-  FROM_EFI_FILE="grubaa64.efi"
-  TO_EFI_FILE="BOOTA64.efi"
-fi
-
-mv "/boot/efi/EFI/BOOT/${FROM_EFI_FILE}" "/boot/efi/EFI/BOOT/${TO_EFI_FILE}"
-
-ROOT_UUID="$(cat /root-uuid)"
-
-{
-    echo 'GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=1024M,max:1024M"'
-    echo "GRUB_CMDLINE_LINUX_DEFAULT=\"quiet rootfstype=ext4 root=UUID=${ROOT_UUID} modules=ext4\""
-    echo 'GRUB_DEFAULT="saved"'
-    echo 'GRUB_SAVEDEFAULT="true"'
-} >> /etc/default/grub
-
-# fix bug in grub detection of xen support
-cp /boot/config-*-lts /boot/config-lts
-grub-mkconfig -o /boot/grub/grub.cfg
-grub-set-default "$(grep ^menuentry /boot/grub/grub.cfg | grep Xen | cut -d \' -f 2 | head -1)"
-rm -rf /var/cache/apk/*