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Add Image Customizer configuration for linuxguard, baremetal, hyperv-guest, qemu-guest, marketplace-gen1, and marketplace-gen2 images (microsoft#13251)
Co-authored-by: Dallas Delaney <dadelan@microsoft.com>
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‎toolkit/imageconfigs/baremetal-amd64.yaml‎

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storage:
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bootType: efi
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disks:
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- partitionTableType: gpt
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maxSize: 1024M
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partitions:
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- id: esp
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type: esp
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size: 8M
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- id: rootfs
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type: root
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size: grow
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filesystems:
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- deviceId: esp
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type: fat32
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mountPoint:
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path: /boot/efi
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options: umask=0077
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- deviceId: rootfs
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type: ext4
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mountPoint:
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path: /
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os:
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bootloader:
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resetType: hard-reset
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hostname: azure-linux
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kernelCommandLine:
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extraCommandLine:
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- console=tty0
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- console=ttyS0
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- rd.info
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- log_buf_len=1M
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selinux:
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mode: enforcing
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packages:
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remove:
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- dracut-hostonly
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installLists:
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- packagelists/baremetal-packages.yaml
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- packagelists/base-image-packages.yaml
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- packagelists/cloud-init-packages.yaml
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- packagelists/selinux.yaml
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scripts:
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finalizeCustomization:
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- path: scripts/cleanup.sh
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- path: scripts/set_os_release_variant_entries.sh
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arguments:
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- --variant-id
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- baremetal
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- --variant
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- Bare Metal Image
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output:
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image:
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format: vhdx

‎toolkit/imageconfigs/baremetal-arm64.yaml‎

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storage:
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bootType: efi
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disks:
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- partitionTableType: gpt
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maxSize: 1024M
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partitions:
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- id: esp
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type: esp
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size: 8M
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- id: rootfs
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type: root
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size: grow
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filesystems:
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- deviceId: esp
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type: fat32
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mountPoint:
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path: /boot/efi
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options: umask=0077
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- deviceId: rootfs
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type: ext4
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mountPoint:
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path: /
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os:
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bootloader:
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resetType: hard-reset
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hostname: azure-linux
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kernelCommandLine:
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extraCommandLine:
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- console=tty0
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- console=ttyS0
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- rd.info
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- log_buf_len=1M
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selinux:
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mode: enforcing
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packages:
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remove:
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- dracut-hostonly
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installLists:
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- packagelists/baremetal-packages.yaml
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- packagelists/base-image-packages.yaml
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- packagelists/cloud-init-packages.yaml
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- packagelists/selinux.yaml
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scripts:
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finalizeCustomization:
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- path: scripts/cleanup.sh
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- path: scripts/set_os_release_variant_entries.sh
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arguments:
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- --variant-id
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- baremetal
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- --variant
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- Bare Metal Image
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output:
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image:
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format: vhdx

‎toolkit/imageconfigs/files/linuxguard/99-dhcp-eth0.network‎

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[Match]
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Name=eth0
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[Network]
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DHCP=yes
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IPv6AcceptRA=no

‎toolkit/imageconfigs/files/linuxguard/no-password-prompt-on-sudo‎

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# Do not prompt for password on sudo
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azuresu ALL=(ALL) NOPASSWD:ALL

‎toolkit/imageconfigs/files/linuxguard/selinux-ci-uki.semanage‎

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boolean -D
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login -D
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interface -D
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user -D
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port -D
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node -D
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fcontext -D
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module -D
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ibendport -D
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ibpkey -D
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permissive -D
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boolean -m -1 cloudinit_manage_non_security
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boolean -m -1 container_mounton_non_security
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boolean -m -1 init_mounton_non_security
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login -m -s ci_unconfined_u -r 's0' root
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login -m -s ci_unconfined_u -r 's0' __default__
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fcontext -a -f f -t bin_t -r 's0' '/etc/grub\.d/.*'
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fcontext -a -f d -t root_t -r 's0' '/overlays'
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fcontext -a -f d -t lost_found_t -r 's0' '/overlays/lost\+found'
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fcontext -a -f f -t fsadm_exec_t -r 's0' '/usr/bin/lsblk'
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fcontext -a -f f -t dockerd_exec_t -r 's0' '/usr/bin/tardev-snapshotter'
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fcontext -a -f f -t bin_t -r 's0' '/usr/share/netplan/netplan\.script'
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fcontext -a -e / /rw

‎toolkit/imageconfigs/files/linuxguard/sshd-keygen.service‎

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[Unit]
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Description=Generate sshd host keys
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ConditionPathExists=|!/rw/etc/ssh/ssh_host_rsa_key
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ConditionPathExists=|!/rw/etc/ssh/ssh_host_ecdsa_key
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ConditionPathExists=|!/rw/etc/ssh/ssh_host_ed25519_key
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Before=sshd.service
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStart=/usr/bin/ssh-keygen -A -f /rw
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[Install]
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WantedBy=multi-user.target

‎toolkit/imageconfigs/files/linuxguard/verity-signature/10-mountbootpartition.conf‎

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add_dracutmodules+=" mountbootpartition "

‎toolkit/imageconfigs/files/linuxguard/verity-signature/90mountbootpartition/module-setup.sh‎

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#!/bin/bash
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# called by dracut
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check() {
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return 255
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}
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# called by dracut
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depends() {
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return 0
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}
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# called by dracut
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installkernel() {
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return 0
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}
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# called by dracut
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install() {
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# install utilities
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inst_multiple lsblk umount
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# generate udev rule - i.e. schedule things post udev settlement
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inst_hook pre-udev 30 "$moddir/mountbootpartition-genrules.sh"
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# script to run post udev to mout
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inst_script "$moddir/mountbootpartition.sh" "/sbin/mountbootpartition"
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# script runs early on when systemd is initialized...
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if dracut_module_included "systemd-initrd"; then
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inst_script "$moddir/mountbootpartition-generator.sh" "$systemdutildir"/system-generators/dracut-mountbootpartition-generator
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fi
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dracut_need_initqueue
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}

‎toolkit/imageconfigs/files/linuxguard/verity-signature/90mountbootpartition/mountbootpartition-generator.sh‎

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#!/bin/sh
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set -x
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set -e
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echo "Running mountbootpartition-generator.sh" > /dev/kmsg
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# type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
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function updateVeritySetupUnit () {
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systemdDropInDir=/etc/systemd/system
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verityDropInDir=$systemdDropInDir/systemd-veritysetup@root.service.d
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mkdir -p $verityDropInDir
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verityConfiguration=$verityDropInDir/verity-azl-extension.conf
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cat <<EOF > $verityConfiguration
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[Unit]
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After=bootmountmonitor.service
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Requires=bootmountmonitor.service
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EOF
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chmod 644 $verityConfiguration
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chown root:root $verityConfiguration
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}
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# -----------------------------------------------------------------------------
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function createBootPartitionMonitorScript () {
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local bootPartitionMonitorCmd=$1
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local semaphorefile=$2
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cat <<EOF > $bootPartitionMonitorCmd
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#!/bin/sh
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while [ ! -e "$semaphorefile" ]; do
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echo "Waiting for $semaphorefile to exist..."
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sleep 1
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done
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EOF
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chmod +x $bootPartitionMonitorCmd
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}
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# -----------------------------------------------------------------------------
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function createBootPartitionMonitorUnit() {
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local bootPartitionMonitorCmd=$1
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bootMountMonitorName="bootmountmonitor.service"
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systemdDropInDir=/etc/systemd/system
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bootMountMonitorDir=$systemdDropInDir
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bootMountMonitorUnitFile=$bootMountMonitorDir/$bootMountMonitorName
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cat <<EOF > $bootMountMonitorUnitFile
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[Unit]
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Description=bootpartitionmounter
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DefaultDependencies=no
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[Service]
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Type=oneshot
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ExecStart=$bootPartitionMonitorCmd
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RemainAfterExit=yes
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[Install]
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WantedBy=multi-user.target
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EOF
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}
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# -----------------------------------------------------------------------------
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updateVeritySetupUnit
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systemdScriptsDir=/usr/local/bin
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bootPartitionMonitorCmd=$systemdScriptsDir/boot-partition-monitor.sh
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semaphorefile=/run/boot-parition-mount-complete.sem
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mkdir -p $systemdScriptsDir
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createBootPartitionMonitorScript $bootPartitionMonitorCmd $semaphorefile
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createBootPartitionMonitorUnit $bootPartitionMonitorCmd
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echo "mountbootpartition-generator.sh completed successfully." > /dev/kmsg

‎toolkit/imageconfigs/files/linuxguard/verity-signature/90mountbootpartition/mountbootpartition-genrules.sh‎

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#!/bin/sh
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echo "Running mountbootpartition-genrules.sh" > /dev/kmsg
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# this gets called after all devices have settled.
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/sbin/initqueue --finished --onetime --unique /sbin/mountbootpartition > /dev/kmsg

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