mirror of
https://github.com/leitbogioro/Tools.git
synced 2024-11-15 13:44:50 +08:00
205 lines
7.4 KiB
Bash
205 lines
7.4 KiB
Bash
#!/bin/ash
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#
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# Alpine Linux use "ash" as the default shell.
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exec >/dev/tty0 2>&1
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insertIntoFile() {
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file=$1
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location=$2
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regexToFind=$3
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lineNum=$(grep -E -n "$regexToFind" "$file" | cut -d: -f1)
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if [[ "$location" == "before" ]]; then
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lineNum=$((lineNum - 1))
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elif [[ "$location" != "after" ]]; then
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return 1
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fi
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sed -i "${lineNum}r /dev/stdin" "$file"
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}
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# Delete the initial script itself to prevent to be executed in the new system.
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rm -f /etc/local.d/alpineConf.start
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rm -f /etc/runlevels/default/local
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# Install necessary components.
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apk update
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apk add bash coreutils grep sed
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# Get Alpine Linux configurations.
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confFile="/root/alpine.config"
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# Read configs from initial file.
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IncDisk=$(grep "IncDisk" $confFile | awk '{print $2}')
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LinuxMirror=$(grep "LinuxMirror" $confFile | awk '{print $2}')
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alpineVer=$(grep "alpineVer" $confFile | awk '{print $2}')
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TimeZone=$(grep "TimeZone" $confFile | awk '{print $2}')
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tmpWORD=$(grep -w "tmpWORD" $confFile | awk '{print $2}')
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sshPORT=$(grep "sshPORT" $confFile | awk '{print $2}')
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AlpineTestRepository=$(grep "AlpineTestRepository" $confFile | awk '{print $2}')
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networkAdapter=$(grep "networkAdapter" $confFile | awk '{print $2}')
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IPv4=$(grep "IPv4" $confFile | awk '{print $2}')
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MASK=$(grep "MASK" $confFile | awk '{print $2}')
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actualIp4Subnet=$(grep "actualIp4Subnet" $confFile | awk '{print $2}')
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GATE=$(grep "GATE" $confFile | awk '{print $2}')
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iAddrNum=$(grep "iAddrNum" $confFile | awk '{print $2}')
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writeIpsCmd=$(grep "writeIpsCmd" $confFile | sed -e 's/writeIpsCmd //g')
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ip6Addr=$(grep "ip6Addr" $confFile | awk '{print $2}')
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ip6Mask=$(grep "ip6Mask" $confFile | awk '{print $2}')
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actualIp6Prefix=$(grep "actualIp6Prefix" $confFile | awk '{print $2}')
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ip6Gate=$(grep "ip6Gate" $confFile | awk '{print $2}')
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i6AddrNum=$(grep "i6AddrNum" $confFile | awk '{print $2}')
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writeIp6sCmd=$(grep "writeIp6sCmd" $confFile | sed -e 's/writeIp6sCmd //g')
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HostName=$(grep "HostName" $confFile | awk '{print $2}')
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virtualizationStatus=$(grep "virtualizationStatus" $confFile | awk '{print $2}')
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setFail2banStatus=$(grep "setFail2banStatus" $confFile | awk '{print $2}')
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setMotd=$(grep "setMotd" $confFile | awk '{print $2}')
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lowMemMode=$(grep "lowMemMode" $confFile | awk '{print $2}')
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if [[ "$lowMemMode" == "1" ]]; then
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# Preloading necessary modprobes and then delete modloop to squeeze out more memory.
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preLoadedModulesList="crc32c ext4 ipv6 nls_cp437 nls_utf8 vfat"
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for moduleItems in $preLoadedModulesList; do
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modprobe "$moduleItems"
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done
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rc-service modloop stop
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rm -f /lib/modloop-lts /lib/modloop-virt
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# Backup component of "set disk" of Alpine.
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[[ -e /sbin/setup-disk.orig ]] && cp -f /sbin/setup-disk.orig /sbin/setup-disk || cp -f /sbin/setup-disk /sbin/setup-disk.orig
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# Allocate 1GB swap when rebooting.
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insertIntoFile /sbin/setup-disk after 'mount -t \$ROOTFS \$root_dev "\$SYSROOT"' <<EOF
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fallocate -l 1G /mnt/swapspace
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chmod 0600 /mnt/swapspace
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mkswap /mnt/swapspace
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swapon /mnt/swapspace
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rc-update add swap boot
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EOF
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# To making swap valid permanently.
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insertIntoFile /sbin/setup-disk after 'install_mounted_root "\$SYSROOT" "\$disks"' <<EOF
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echo "/swapspace swap swap defaults 0 0" >>/mnt/etc/fstab
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EOF
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fi
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# Reset configurations of repositories
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true >/etc/apk/repositories
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setup-apkrepos $LinuxMirror/$alpineVer/main
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setup-apkcache /var/cache/apk
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# Add community mirror
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sed -i '$a\'$LinuxMirror'/'$alpineVer'/community' /etc/apk/repositories
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# Add edge testing to the repositories
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# sed -i '$a\'$LinuxMirror'/edge/testing' /etc/apk/repositories
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# Synchronize time from hardware
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hwclock -s
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# Install and enable ssh
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echo root:${tmpWORD} | chpasswd
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printf '\nyes' | setup-sshd
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sed -ri 's/^#?Port.*/Port '${sshPORT}'/g' /etc/ssh/sshd_config
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# Network configurations.
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# https://wiki.alpinelinux.org/wiki/Configure_Networking
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#
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# Config dhcpcd
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apk add dhcpcd
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sed -i '/^slaac private/s/^/#/' /etc/dhcpcd.conf
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sed -i '/^#slaac hwaddr/s/^#//' /etc/dhcpcd.conf
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# Setup adapter.
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setup-interfaces -a
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# Generate network file of "/etc/network/interfaces"
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rc-update add networking boot
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# Delete network file and replace it by us.
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rm -rf /etc/network/interfaces
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mv /etc/network/tmp_interfaces /etc/network/interfaces
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# Static network configurating
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sed -ri 's/networkAdapter/'${networkAdapter}'/g' /etc/network/interfaces
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sed -ri 's/IPv4/'${IPv4}'/g' /etc/network/interfaces
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sed -ri 's/MASK/'${MASK}'/g' /etc/network/interfaces
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sed -ri 's/netmask '${MASK}'/netmask '${actualIp4Subnet}'/g' /etc/network/interfaces
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sed -ri 's/GATE/'${GATE}'/g' /etc/network/interfaces
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if [[ "$iAddrNum" -ge "2" ]]; then
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echo -e "${writeIpsCmd}" >>/etc/network/interfaces
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fi
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sed -ri 's/ip6Addr/'${ip6Addr}'/g' /etc/network/interfaces
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sed -ri 's/ip6Mask/'${ip6Mask}'/g' /etc/network/interfaces
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sed -ri 's/netmask '${ip6Mask}'/netmask '${actualIp6Prefix}'/g' /etc/network/interfaces
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sed -ri 's/ip6Gate/'${ip6Gate}'/g' /etc/network/interfaces
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if [[ "$i6AddrNum" -ge "2" ]]; then
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echo -e "${writeIp6sCmd}" >>/etc/network/interfaces
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fi
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# Restoring access permission.
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chmod a+x /etc/network/interfaces
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# Enable IPv6
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modprobe ipv6
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# Rebuild hosts
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rm -rf /etc/hosts
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# Add special IPv4 addresses
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echo "127.0.0.1 $HostName localhost.localdomain" >>/etc/hosts
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# Add special IPv6 addresses
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echo "::1 $HostName localhost.localdomain ipv6-localhost ipv6-loopback" >>/etc/hosts
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echo "fe00::0 ipv6-localnet" >>/etc/hosts
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echo "ff00::0 ipv6-mcastprefix" >>/etc/hosts
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echo "ff02::1 ipv6-allnodes" >>/etc/hosts
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echo "ff02::2 ipv6-allrouters" >>/etc/hosts
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echo "ff02::3 ipv6-allhosts" >>/etc/hosts
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# Hostname
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rm -rf /etc/hostname
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echo "$HostName" >/etc/hostname
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hostname -F /etc/hostname
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# Localization
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setup-keymap us us
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setup-timezone -i ${TimeZone}
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setup-ntp chrony || true
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# In arm netboot initramfs init,
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# if rtc hardware is detected, add hwclock for system, otherwise add swclock,
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# this settings will be copied to the new system,
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# but the new system boot from initramfs chroot can detect rtc hardwa1 correctly,
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# so we use hwclock manually to fix it.
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rc-update del swclock boot || true
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rc-update add hwclock boot
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# Setting Alpine Linux by "setup-alpine" will enable the following services
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# https://github.com/alpinelinux/alpine-conf/blob/c5131e9a038b09881d3d44fb35e86851e406c756/setup-alpine.in#L189
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# acpid | default
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# crond | default
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# seedrng | boot
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[[ -e /dev/input/event0 ]] && rc-update add acpid
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rc-update add crond
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rc-update add seedrng boot
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# Replace "ash" to "bash" as the default shell of the Alpine Linux.
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sed -ri 's/ash/bash/g' /etc/passwd
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# Insall more components.
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apk update
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if [[ "$setFail2banStatus" == "1" && "$lowMemMode" != "1" ]]; then
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apk add bind-tools curl e2fsprogs fail2ban grub lsblk lsof net-tools udev util-linux vim wget
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# Config fail2ban
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sed -i '/^\[Definition\]/a allowipv6 = auto' /etc/fail2ban/fail2ban.conf
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rc-update add fail2ban
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/etc/init.d/fail2ban start
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elif [[ "$lowMemMode" == "1" ]]; then
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apk add bind-tools grub net-tools udev util-linux
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else
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apk add bind-tools curl e2fsprogs grub lsblk lsof net-tools udev util-linux vim wget
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fi
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# Make a blank motd to avoid Alpine Linux writes a new one.
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[[ "$setMotd" == "1" ]] && {
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rm -rf /etc/motd
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touch /etc/motd
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}
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# Use kernel "virt" if be executed on virtual machine.
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[[ "$virtualizationStatus" == "1" ]] && kernelType="virt" || kernelType="lts"
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# Install to hard drive.
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export BOOTLOADER="grub"
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printf 'y' | setup-disk -m sys -k $kernelType -s 0 $IncDisk
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# Reboot, the system in the memory will all be written to the hard drive.
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exec reboot
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