406 lines
18 KiB
Bash
Executable File
406 lines
18 KiB
Bash
Executable File
#!/bin/bash
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## This script is to automate the preparation for a debian file system, which will be used for
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## an ONIE installer image.
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##
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## USAGE:
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## USERNAME=username PASSWORD=password ./build_debian
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## ENVIRONMENT:
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## USERNAME
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## The name of the default admin user
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## PASSWORD
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## The password, expected by chpasswd command
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## Default user
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[ -n "$USERNAME" ] || {
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echo "Error: no or empty USERNAME"
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exit 1
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}
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## Password for the default user
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[ -n "$PASSWORD" ] || {
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echo "Error: no or empty PASSWORD"
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exit 1
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}
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## Include common functions
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. functions.sh
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## Enable debug output for script
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set -x -e
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## docker engine version (with platform)
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DOCKER_VERSION=1.11.1-0~stretch_amd64
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LINUX_KERNEL_VERSION=4.9.0-5
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## Working directory to prepare the file system
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FILESYSTEM_ROOT=./fsroot
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PLATFORM_DIR=platform
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## Hostname for the linux image
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HOSTNAME=sonic
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DEFAULT_USERINFO="Default admin user,,,"
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## Read ONIE image related config file
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. ./onie-image.conf
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[ -n "$ONIE_IMAGE_PART_SIZE" ] || {
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echo "Error: Invalid ONIE_IMAGE_PART_SIZE in onie image config file"
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exit 1
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}
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[ -n "$ONIE_INSTALLER_PAYLOAD" ] || {
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echo "Error: Invalid ONIE_INSTALLER_PAYLOAD in onie image config file"
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exit 1
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}
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[ -n "$FILESYSTEM_SQUASHFS" ] || {
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echo "Error: Invalid FILESYSTEM_SQUASHFS in onie image config file"
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exit 1
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}
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## Prepare the file system directory
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if [[ -d $FILESYSTEM_ROOT ]]; then
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sudo rm -rf $FILESYSTEM_ROOT || die "Failed to clean chroot directory"
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fi
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mkdir -p $FILESYSTEM_ROOT
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mkdir -p $FILESYSTEM_ROOT/$PLATFORM_DIR
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mkdir -p $FILESYSTEM_ROOT/$PLATFORM_DIR/x86_64-grub
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touch $FILESYSTEM_ROOT/$PLATFORM_DIR/firsttime
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## Build a basic Debian system by debootstrap
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echo '[INFO] Debootstrap...'
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sudo http_proxy=$http_proxy debootstrap --variant=minbase --arch amd64 stretch $FILESYSTEM_ROOT http://debian-archive.trafficmanager.net/debian
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## Config hostname and hosts, otherwise 'sudo ...' will complain 'sudo: unable to resolve host ...'
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c "echo '$HOSTNAME' > /etc/hostname"
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c "echo '127.0.0.1 $HOSTNAME' >> /etc/hosts"
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c "echo '127.0.0.1 localhost' >> /etc/hosts"
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## Config basic fstab
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c 'echo "proc /proc proc defaults 0 0" >> /etc/fstab'
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c 'echo "sysfs /sys sysfs defaults 0 0" >> /etc/fstab'
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## Setup proxy
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[ -n "$http_proxy" ] && sudo /bin/bash -c "echo 'Acquire::http::Proxy \"$http_proxy\";' > $FILESYSTEM_ROOT/etc/apt/apt.conf.d/01proxy"
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## Note: mounting is necessary to makedev and install linux image
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echo '[INFO] Mount all'
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## Output all the mounted device for troubleshooting
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mount
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trap_push 'sudo umount $FILESYSTEM_ROOT/proc || true'
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sudo LANG=C chroot $FILESYSTEM_ROOT mount proc /proc -t proc
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## Pointing apt to public apt mirrors and getting latest packages, needed for latest security updates
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sudo cp files/apt/sources.list $FILESYSTEM_ROOT/etc/apt/
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sudo cp files/apt/apt.conf.d/{81norecommends,apt-{clean,gzip-indexes,no-languages}} $FILESYSTEM_ROOT/etc/apt/apt.conf.d/
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sudo LANG=C chroot $FILESYSTEM_ROOT bash -c 'apt-mark auto `apt-mark showmanual`'
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## Note: set lang to prevent locale warnings in your chroot
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y update
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y upgrade
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echo '[INFO] Install packages for building image'
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install makedev psmisc systemd-sysv
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## Create device files
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echo '[INFO] MAKEDEV'
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sudo LANG=C chroot $FILESYSTEM_ROOT /bin/bash -c 'cd /dev && MAKEDEV generic'
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## Install initramfs-tools and linux kernel
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## Note: initramfs-tools recommends depending on busybox, and we really want busybox for
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## 1. commands such as touch
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## 2. mount supports squashfs
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## However, 'dpkg -i' plus 'apt-get install -f' will ignore the recommended dependency. So
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## we install busybox explicitly
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install busybox
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echo '[INFO] Install SONiC linux kernel image'
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## Note: duplicate apt-get command to ensure every line return zero
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sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/initramfs-tools-core_*.deb || \
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
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sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/initramfs-tools_*.deb || \
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
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sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/linux-image-${LINUX_KERNEL_VERSION}-amd64_*.deb || \
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install acl
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## Update initramfs for booting with squashfs+overlay
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cat files/initramfs-tools/modules | sudo tee -a $FILESYSTEM_ROOT/etc/initramfs-tools/modules > /dev/null
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## Hook into initramfs: change fs type from vfat to ext4 on arista switches
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sudo mkdir -p $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/
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sudo cp files/initramfs-tools/arista-convertfs $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/arista-convertfs
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/arista-convertfs
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sudo cp files/initramfs-tools/mke2fs $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/mke2fs
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/mke2fs
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sudo cp files/initramfs-tools/setfacl $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/setfacl
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/setfacl
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# Hook into initramfs: rename the management interfaces on arista switches
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sudo cp files/initramfs-tools/arista-net $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/arista-net
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/arista-net
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# Hook into initramfs: resize root partition after migration from another NOS to SONiC on Dell switches
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sudo cp files/initramfs-tools/resize-rootfs $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/resize-rootfs
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-premount/resize-rootfs
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## Hook into initramfs: after partition mount and loop file mount
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## 1. Prepare layered file system
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## 2. Bind-mount docker working directory (docker aufs cannot work over aufs rootfs)
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sudo cp files/initramfs-tools/union-mount $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/union-mount
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/union-mount
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sudo cp files/initramfs-tools/varlog $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/varlog
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/varlog
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# Management interface (eth0) dhcp can be optionally turned off (during a migration from another NOS to SONiC)
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sudo cp files/initramfs-tools/mgmt-intf-dhcp $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/mgmt-intf-dhcp
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/scripts/init-bottom/mgmt-intf-dhcp
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sudo cp files/initramfs-tools/union-fsck $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/union-fsck
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sudo chmod +x $FILESYSTEM_ROOT/etc/initramfs-tools/hooks/union-fsck
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pushd $FILESYSTEM_ROOT/usr/share/initramfs-tools/scripts/init-bottom && sudo patch -p1 < $OLDPWD/files/initramfs-tools/udev.patch; popd
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## Install latest intel ixgbe driver
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sudo cp target/debs/ixgbe.ko $FILESYSTEM_ROOT/lib/modules/${LINUX_KERNEL_VERSION}-amd64/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe.ko
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## Install docker
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echo '[INFO] Install docker'
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## Install apparmor utils since they're missing and apparmor is enabled in the kernel
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## Otherwise Docker will fail to start
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install apparmor
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docker_deb_url=https://apt.dockerproject.org/repo/pool/main/d/docker-engine/docker-engine_${DOCKER_VERSION}.deb
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docker_deb_temp=`mktemp`
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trap_push "rm -f $docker_deb_temp"
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wget $docker_deb_url -qO $docker_deb_temp && { \
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sudo dpkg --root=$FILESYSTEM_ROOT -i $docker_deb_temp || \
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f; \
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}
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## Add docker config drop-in to select aufs, otherwise it may select other storage driver
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sudo mkdir -p $FILESYSTEM_ROOT/etc/systemd/system/docker.service.d/
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## Note: $_ means last argument of last command
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sudo cp files/docker/docker.service.conf $_
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## Create default user
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## Note: user should be in the group with the same name, and also in sudo/docker group
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sudo LANG=C chroot $FILESYSTEM_ROOT useradd -G sudo,docker $USERNAME -c "$DEFAULT_USERINFO" -m -s /bin/bash
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## Create password for the default user
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echo "$USERNAME:$PASSWORD" | sudo LANG=C chroot $FILESYSTEM_ROOT chpasswd
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## Pre-install hardware drivers
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install \
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firmware-linux-nonfree
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## Pre-install the fundamental packages
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## Note: gdisk is needed for sgdisk in install.sh
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## Note: parted is needed for partprobe in install.sh
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## Note: ca-certificates is needed for easy_install
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## Note: don't install python-apt by pip, older than Debian repo one
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install \
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file \
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ifupdown \
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iproute2 \
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bridge-utils \
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isc-dhcp-client \
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sudo \
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vim \
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tcpdump \
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dbus \
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ntp \
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ntpstat \
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openssh-server \
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python \
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python-setuptools \
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monit \
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python-apt \
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traceroute \
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iputils-ping \
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net-tools \
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bsdmainutils \
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ca-certificates \
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i2c-tools \
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efibootmgr \
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usbutils \
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pciutils \
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iptables-persistent \
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logrotate \
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curl \
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kexec-tools \
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less \
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unzip \
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gdisk \
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sysfsutils \
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grub2-common \
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rsyslog \
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ethtool \
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screen \
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hping3 \
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python-scapy \
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tcptraceroute \
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mtr-tiny
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y download \
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grub-pc-bin
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sudo mv $FILESYSTEM_ROOT/grub-pc-bin*.deb $FILESYSTEM_ROOT/$PLATFORM_DIR/x86_64-grub
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sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/libwrap0_*.deb || \
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sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
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## Disable kexec supported reboot which was installed by default
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sudo sed -i 's/LOAD_KEXEC=true/LOAD_KEXEC=false/' $FILESYSTEM_ROOT/etc/default/kexec
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## Fix ping tools permission so non root user can directly use them
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## Note: this is a workaround since aufs doesn't support extended attributes
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## Ref: https://github.com/moby/moby/issues/5650#issuecomment-303499489
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## TODO: remove workaround when the overlay filesystem support extended attributes
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sudo chmod u+s $FILESYSTEM_ROOT/bin/ping{,6}
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## Remove sshd host keys, and will regenerate on first sshd start
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sudo rm -f $FILESYSTEM_ROOT/etc/ssh/ssh_host_*_key*
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sudo cp files/sshd/host-ssh-keygen.sh $FILESYSTEM_ROOT/usr/local/bin/
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sudo cp -f files/sshd/sshd.service $FILESYSTEM_ROOT/lib/systemd/system/ssh.service
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## Config sshd
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sudo augtool --autosave "set /files/etc/ssh/sshd_config/UseDNS no" -r $FILESYSTEM_ROOT
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sudo sed -i 's/^ListenAddress ::/#ListenAddress ::/' $FILESYSTEM_ROOT/etc/ssh/sshd_config
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sudo sed -i 's/^#ListenAddress 0.0.0.0/ListenAddress 0.0.0.0/' $FILESYSTEM_ROOT/etc/ssh/sshd_config
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## Config monit
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sudo sed -i '
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s/^# set logfile syslog/set logfile syslog/;
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s/^\s*set logfile \/var/# set logfile \/var/;
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s/^# set httpd port/set httpd port/;
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s/^# use address localhost/ use address localhost/;
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s/^# allow localhost/ allow localhost/;
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s/^# allow admin:monit/ allow admin:monit/;
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s/^# allow @monit/ allow @monit/;
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s/^# allow @users readonly/ allow @users readonly/
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' $FILESYSTEM_ROOT/etc/monit/monitrc
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sudo tee -a $FILESYSTEM_ROOT/etc/monit/monitrc > /dev/null <<'EOF'
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check filesystem root-overlay with path /
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if space usage > 90% for 5 times within 10 cycles then alert
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check filesystem var-log with path /var/log
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if space usage > 90% for 5 times within 10 cycles then alert
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check system $HOST
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if memory usage > 90% for 5 times within 10 cycles then alert
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if cpu usage (user) > 90% for 5 times within 10 cycles then alert
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if cpu usage (system) > 90% for 5 times within 10 cycles then alert
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EOF
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## Config sysctl
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sudo mkdir -p $FILESYSTEM_ROOT/var/core
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sudo augtool --autosave "
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set /files/etc/sysctl.conf/kernel.core_pattern '|/usr/bin/coredump-compress %e %t %p'
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set /files/etc/sysctl.conf/kernel.softlockup_panic 1
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set /files/etc/sysctl.conf/kernel.panic 10
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set /files/etc/sysctl.conf/fs.suid_dumpable 2
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set /files/etc/sysctl.conf/net.ipv4.conf.default.forwarding 1
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set /files/etc/sysctl.conf/net.ipv4.conf.all.forwarding 1
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set /files/etc/sysctl.conf/net.ipv4.conf.eth0.forwarding 0
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set /files/etc/sysctl.conf/net.ipv4.conf.default.arp_accept 0
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set /files/etc/sysctl.conf/net.ipv4.conf.default.arp_announce 0
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set /files/etc/sysctl.conf/net.ipv4.conf.default.arp_filter 0
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set /files/etc/sysctl.conf/net.ipv4.conf.default.arp_notify 0
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set /files/etc/sysctl.conf/net.ipv4.conf.default.arp_ignore 0
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set /files/etc/sysctl.conf/net.ipv4.conf.all.arp_accept 0
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set /files/etc/sysctl.conf/net.ipv4.conf.all.arp_announce 1
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set /files/etc/sysctl.conf/net.ipv4.conf.all.arp_filter 0
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set /files/etc/sysctl.conf/net.ipv4.conf.all.arp_notify 1
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set /files/etc/sysctl.conf/net.ipv4.conf.all.arp_ignore 2
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set /files/etc/sysctl.conf/net.ipv4.neigh.default.base_reachable_time_ms 1800000
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set /files/etc/sysctl.conf/net.ipv6.conf.default.forwarding 1
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set /files/etc/sysctl.conf/net.ipv6.conf.all.forwarding 1
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set /files/etc/sysctl.conf/net.ipv6.conf.eth0.forwarding 0
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set /files/etc/sysctl.conf/net.ipv6.conf.default.accept_dad 0
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set /files/etc/sysctl.conf/net.ipv6.conf.all.accept_dad 0
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set /files/etc/sysctl.conf/net.ipv6.conf.eth0.accept_dad 0
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set /files/etc/sysctl.conf/net.ipv6.conf.eth0.accept_ra_defrtr 0
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set /files/etc/sysctl.conf/net.core.rmem_max 2097152
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set /files/etc/sysctl.conf/net.core.wmem_max 2097152
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" -r $FILESYSTEM_ROOT
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## docker-py is needed by Ansible docker module
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sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT easy_install pip
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sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install 'docker-py==1.6.0'
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## Note: keep pip installed for maintainance purpose
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## Create /var/run/redis folder for docker-database to mount
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sudo mkdir -p $FILESYSTEM_ROOT/var/run/redis
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## Config DHCP for eth0
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sudo tee -a $FILESYSTEM_ROOT/etc/network/interfaces > /dev/null <<EOF
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auto eth0
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allow-hotplug eth0
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iface eth0 inet dhcp
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EOF
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sudo cp files/dhcp/rfc3442-classless-routes $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d
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sudo cp files/dhcp/sethostname $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d/
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sudo cp files/dhcp/graphserviceurl $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d/
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sudo cp files/dhcp/snmpcommunity $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d/
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sudo cp files/dhcp/dhclient.conf $FILESYSTEM_ROOT/etc/dhcp/
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## Version file
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sudo mkdir -p $FILESYSTEM_ROOT/etc/sonic
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sudo tee $FILESYSTEM_ROOT/etc/sonic/sonic_version.yml > /dev/null <<EOF
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build_version: '$(sonic_get_version)'
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debian_version: '$(cat $FILESYSTEM_ROOT/etc/debian_version)'
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kernel_version: '$kversion'
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asic_type: $sonic_asic_platform
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commit_id: '$(git rev-parse --short HEAD)'
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build_date: $(date -u)
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build_number: ${BUILD_NUMBER:-0}
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built_by: $USER@$BUILD_HOSTNAME
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EOF
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if [ -f sonic_debian_extension.sh ]; then
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./sonic_debian_extension.sh $FILESYSTEM_ROOT $PLATFORM_DIR
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fi
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## Organization specific extensions such as Configuration & Scripts for features like AAA, ZTP...
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if [ "${enable_organization_extensions}" = "y" ]; then
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if [ -f files/build_templates/organization_extensions.sh ]; then
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sudo chmod 755 files/build_templates/organization_extensions.sh
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./files/build_templates/organization_extensions.sh -f $FILESYSTEM_ROOT -h $HOSTNAME
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fi
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fi
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## Update initramfs
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sudo chroot $FILESYSTEM_ROOT update-initramfs -u
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## Clean up apt
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get autoremove
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get autoclean
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sudo LANG=C chroot $FILESYSTEM_ROOT apt-get clean
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sudo LANG=C chroot $FILESYSTEM_ROOT bash -c 'rm -rf /usr/share/doc/* /usr/share/locale/* /var/lib/apt/lists/* /tmp/*'
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## Clean up proxy
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[ -n "$http_proxy" ] && sudo rm -f $FILESYSTEM_ROOT/etc/apt/apt.conf.d/01proxy
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## Umount all
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echo '[INFO] Umount all'
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## Display all process details access /proc
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sudo LANG=C chroot $FILESYSTEM_ROOT fuser -vm /proc
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## Kill the processes
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sudo LANG=C chroot $FILESYSTEM_ROOT fuser -km /proc || true
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## Wait fuser fully kill the processes
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sleep 15
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sudo umount $FILESYSTEM_ROOT/proc || true
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|
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## Prepare empty directory to trigger mount move in initramfs-tools/mount_loop_root, implemented by patching
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sudo mkdir $FILESYSTEM_ROOT/host
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|
|
## Compress most file system into squashfs file
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|
sudo rm -f $ONIE_INSTALLER_PAYLOAD $FILESYSTEM_SQUASHFS
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|
## Output the file system total size for diag purpose
|
|
## Note: -x to skip directories on different file systems, such as /proc
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|
sudo du -hsx $FILESYSTEM_ROOT
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|
sudo mksquashfs $FILESYSTEM_ROOT $FILESYSTEM_SQUASHFS -e boot -e var/lib/docker -e $PLATFORM_DIR
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|
|
## Compress docker files
|
|
pushd $FILESYSTEM_ROOT && sudo tar czf $OLDPWD/$FILESYSTEM_DOCKERFS -C var/lib/docker .; popd
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|
|
|
## Compress together with /boot, /var/lib/docker and $PLATFORM_DIR as an installer payload zip file
|
|
pushd $FILESYSTEM_ROOT && sudo zip $OLDPWD/$ONIE_INSTALLER_PAYLOAD -r boot/ $PLATFORM_DIR/; popd
|
|
sudo zip -g $ONIE_INSTALLER_PAYLOAD $FILESYSTEM_SQUASHFS $FILESYSTEM_DOCKERFS
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