Update Readme
add requirements.yml for additional modules
This commit is contained in:
Michael Pellegrino
334
roles/zabbix/files/zbx-reboot-required.sh
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334
roles/zabbix/files/zbx-reboot-required.sh
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#!/usr/bin/env sh
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usage() {
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echo "Usage: $(basename "$0") [-K|-s|-k]"
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echo
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echo "-K: Output the current kernel flavor"
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echo "-k: Only check for updated kernel version (default: enabled)"
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echo "-s: Check whether services need to be restarted (default: enabled)"
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}
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_chroot() {
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if test -e /.dockerenv
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then
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sudo -E chroot /rootfs bash -c "$*"
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else
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eval "$@"
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fi
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}
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arch_current_version() {
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# Remove the kernel flavor at the end
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# 5.4.22-1-lts -> 5.4.22-1
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_chroot uname -r | sed 's/-[^0-9]*$//'
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}
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archarm_current_version() {
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arch_current_version
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}
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openwrt_current_version() {
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uname -r
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}
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fedora_current_version() {
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# Remove the Fedora version and arch at the end
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# 5.5.5-200.fc31.x86_64 -> 5.5.5-200
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uname -r | sed -r 's/.fc[0-9]+.*//'
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}
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ubuntu_current_version() {
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arch_current_version
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}
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raspbian_current_version() {
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# Remove the architecture at the end
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# 4.19.97-v7+ -> 4.19.97
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uname -r | sed -r 's/-v.+$//'
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}
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arch_latest_installed() {
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local package
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case "$1" in
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LTS)
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package=linux-lts
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;;
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VFIO)
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package=linux-vfio
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;;
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*)
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package=linux
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;;
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esac
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_chroot pacman -Qi "$package" | awk '/Version/ {print $3}'
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}
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archarm_latest_installed() {
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local package
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case "$1" in
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*)
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package=linux-raspberrypi
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;;
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esac
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_chroot pacman -Qi "$package" | awk '/Version/ {print $3}'
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}
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openwrt_latest_installed() {
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_chroot sudo opkg list-installed | awk '/kernel - / {print $NF}' | cut -d - -f 1
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}
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fedora_latest_installed() {
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_chroot dnf list installed kernel | \
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awk '{ print $2 }' | sort -rn | head -1 | sed -r 's/.fc[0-9]+$//g'
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}
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raspbian_latest_installed() {
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local val
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local kernel_file
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case "$(uname -a)" in
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armv7l)
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kernel_file="/boot/kernel7.img"
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;;
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aarch64)
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kernel_file="/boot/kernel8.img"
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;;
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*)
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kernel_file="/boot/kernel7l.img"
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;;
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esac
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if _chroot test -e /usr/lib/needrestart/vmlinuz-get-version
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then
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val="$(_chroot /usr/lib/needrestart/vmlinuz-get-version "$kernel_file")"
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# echo "Unable to determine current kernel version. Please install needrestart." >&2
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else
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# Download latest vmlinuz-get-version
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_chroot curl -qqsL -o /tmp/vmlinuz-get-version \
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https://github.com/liske/needrestart/raw/master/lib/vmlinuz-get-version
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val="$(_chroot bash /tmp/vmlinuz-get-version "$kernel_file")"
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_chroot rm /tmp/vmlinuz-get-version
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fi
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# Extract version
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# Linux version 4.19.97-v7+ (dom@buildbot) (gcc version[...] -> 4.19.97
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# Linux version 4.19.97+ (dom@buildbot) (gcc version[...] -> 4.19.97
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echo "$val" | sed -n -r 's/Linux version ([0-9.]+)[-+]v?.*/\1/p'
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}
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ubuntu_latest_installed() {
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_chroot dpkg --list | grep linux-image | \
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grep -v 'linux-image-generic' | \
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awk '{ print $2 }' | \
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sort -nr -k 4 -t '-' | head -1 | \
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sed -r 's/linux-image-(.+)-generic/\1/'
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}
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arch_kernel_flavour() {
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case "$(_chroot uname -a)" in
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*vfio*) echo VFIO ;;
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*lts*) echo LTS ;;
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*) echo latest ;;
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esac
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}
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kernel_flavour() {
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case "$ID" in
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arch|antergos)
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arch_kernel_flavour
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;;
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archarm|turrisos|openwrt|lede|fedora|ubuntu|neon|raspbian|debian)
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echo latest
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;;
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*)
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echo "Unsupported distribution" >&2
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exit 3
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;;
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esac
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}
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check_kernel_update() {
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local current_version
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local flavor
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local latest_installed_version
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flavor="$(kernel_flavour)"
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case "$ID" in
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arch|antergos)
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current_version=$(arch_current_version)
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latest_installed_version=$(arch_latest_installed "$flavor")
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;;
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archarm)
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current_version=$(archarm_current_version)
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latest_installed_version=$(archarm_latest_installed "$flavor")
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;;
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openwrt|lede|turrisos)
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current_version=$(openwrt_current_version "$flavor")
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latest_installed_version=$(openwrt_latest_installed "$flavor")
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;;
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fedora)
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current_version=$(fedora_current_version "$flavor")
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latest_installed_version=$(fedora_latest_installed "$flavor")
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;;
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ubuntu|neon|debian)
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current_version=$(ubuntu_current_version "$flavor")
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latest_installed_version=$(ubuntu_latest_installed "$flavor")
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;;
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raspbian)
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current_version=$(raspbian_current_version "$flavor")
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latest_installed_version=$(raspbian_latest_installed "$flavor")
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;;
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*)
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echo "Unsupported distribution" >&2
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exit 3
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;;
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esac
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if test "$current_version" != "$latest_installed_version"
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then
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echo "Kernel update: $current_version -> $latest_installed_version"
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return 1
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fi
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return 0
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}
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check_services() {
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local failed=0
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local need_r
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if _chroot sudo needrestart --help >/dev/null 2>&1
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then
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# shellcheck disable=2024
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need_r="$(_chroot sudo needrestart -m a -b -n -r l -l -p 2>/dev/null)"
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else
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echo "ERROR: Please install needrestart" >&2
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fi
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if echo "$need_r" | grep -q CRIT
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then
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echo "$need_r"
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failed=1
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fi
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case "$ID" in
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ubuntu|neon|raspbian)
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if _chroot test -e /var/run/reboot-required
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then
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echo "/var/run/reboot-required is present on the system"
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failed=1
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fi
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;;
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fedora)
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needs_r=$(_chroot sudo needs-restarting -r)
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if test $? -eq 1
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then
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echo "$needs_r"
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fi
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;;
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esac
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return $failed
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}
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reboot_check() {
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local reboot_required=0
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local message
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local KERNEL MISC
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local tmp
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if test "$#" -eq 0
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then
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KERNEL=1
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SERVICES=1
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else
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case "$1" in
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-k|--kernel|kernel|k)
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KERNEL=1
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;;
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-s|--services|--svc|services|svc|s)
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SERVICES=1
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;;
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esac
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fi
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if test -n "$KERNEL"
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then
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tmp=$(check_kernel_update)
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if test $? -ne 0
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then
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reboot_required=1
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message="$tmp"
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fi
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fi
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if test -n "$SERVICES"
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then
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tmp=$(check_services)
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if test $? -ne 0
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then
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reboot_required=1
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if test -z "$message"
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then
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message="$tmp"
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else
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message="$message\n\n$tmp"
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fi
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fi
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fi
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if test "$reboot_required" = "0"
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then
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message="No reboot required ✔"
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fi
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# shellcheck disable=2039
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if test "$(echo -e)" != "-e"
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then
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echo -e "$message"
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else
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# printf "%s\n" "$message"
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echo "$message"
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fi
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}
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determine_os() {
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local os_id
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os_id="$(_chroot cat /etc/os-release | sed -nr 's/^ID="?([^"]+)"?/\1/p')"
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if test -z "$os_id"
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then
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# Old (pre 19.07.1) OpenWRT version don't carry an /etc/os-release
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if _chroot test -r /etc/openwrt_version
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then
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os_id=openwrt
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fi
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echo "$os_id"
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fi
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echo "$os_id"
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}
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ID="$(determine_os)"
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case "$1" in
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help|h|--help|-h)
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usage
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;;
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-K)
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kernel_flavour
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;;
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*)
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# -k: kernel only
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# -m: Misc. services only
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# NONE: both
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if test "$#" -gt 1
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then
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shift
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fi
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reboot_check "$@"
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;;
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esac
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# vim set ft=sh et ts=2 sw=2 :
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