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[READ-ONLY] Mirror of https://github.com/andreijiroh-dev/bootstrap-scripts-linux. Shell scripts and Ansible playbooks to setup a fresh Linux install post-install.
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Beside this the script should# work on any Linux system.## It also creates script "enter-chroot" inside the chroot directory, that may# be used to enter the chroot environment. That script do the following:## 1. saves environment variables specified by $CHROOT_KEEP_VARS and PWD,# 2. chroots into $CHROOT_DIR,# 3. starts clean environment using "env -i",# 4. switches user and simulates full login using "su -l",# 5. loads saved environment variables and changes directory to saved PWD,# 6. executes specified command or "sh" if not provided.## Example:# sudo alpine-chroot-install -d /alpine -p build-base -p cmake# /alpine/enter-chroot -u $USER ./build## Options and environment variables:# -a ARCH CPU architecture for the chroot. If not set, then it's# the same as the host's architecture. If it's different# from the host's architecture, then it will be emulated# using qemu-user. Options: x86_64, x86, aarch64, armhf,# armv7, ppc64le, riscv64, s390x.## -b ALPINE_BRANCH Alpine branch to install (default is latest-stable).## -d CHROOT_DIR Absolute path to the directory where Alpine chroot# should be installed (default is /alpine).## -i BIND_DIR Absolute path to the directory on the host system that# should be mounted on the same path inside the chroot# (default is PWD, if it's under /home, or none).## -k CHROOT_KEEP_VARS... Names of the environment variables to pass from the# host environment into chroot by the enter-chroot# script. Name may be an extended regular expression.# Default: ARCH CI QEMU_EMULATOR TRAVIS_.*.## -m ALPINE_MIRROR... URI of the Aports mirror to fetch packages from# (default is http://dl-cdn.alpinelinux.org/alpine).## -p ALPINE_PACKAGES... Alpine packages to install into the chroot (default is# build-base ca-certificates ssl_client).## -r EXTRA_REPOS... Alpine repositories to be added to# /etc/apk/repositories (main and community from# $ALPINE_MIRROR are always added).## -t TEMP_DIR Absolute path to the directory where to store temporary# files (defaults to `mktemp -d`).## -h Show this help message and exit.## -v Print version and exit.## APK_TOOLS_URI URL of apk.static to download. Default is x86_64# binary from# https://gitlab.alpinelinux.org/alpine/apk-tools/-/packages.## APK_TOOLS_SHA256 SHA-256 checksum of $APK_TOOLS_URI.## Each option can be also provided by environment variable. If both option and# variable is specified and the option accepts only one argument, then the# option takes precedence.## https://github.com/alpinelinux/alpine-chroot-install#---help---set -eu#======================= C o n s t a n t s =======================#: ${APK_TOOLS_URI:="https://gitlab.alpinelinux.org/api/v4/projects/5/packages/generic/v2.12.10/x86_64/apk.static"}: ${APK_TOOLS_SHA256:="d7506bb11327b337960910daffed75aa289d8bb350feab624c52965be82ceae8"}# Alpine APK keys for packages verification.ALPINE_KEYS='4a6a0840:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1yHJxQgsHQREclQu4Ohe\nqxTxd1tHcNnvnQTu/UrTky8wWvgXT+jpveroeWWnzmsYlDI93eLI2ORakxb3gA2O\nQ0Ry4ws8vhaxLQGC74uQR5+/yYrLuTKydFzuPaS1dK19qJPXB8GMdmFOijnXX4SA\njixuHLe1WW7kZVtjL7nufvpXkWBGjsfrvskdNA/5MfxAeBbqPgaq0QMEfxMAn6/R\nL5kNepi/Vr4S39Xvf2DzWkTLEK8pcnjNkt9/aafhWqFVW7m3HCAII6h/qlQNQKSo\nGuH34Q8GsFG30izUENV9avY7hSLq7nggsvknlNBZtFUcmGoQrtx3FmyYsIC8/R+B\nywIDAQAB5243ef4b:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvNijDxJ8kloskKQpJdx+\nmTMVFFUGDoDCbulnhZMJoKNkSuZOzBoFC94omYPtxnIcBdWBGnrm6ncbKRlR+6oy\nDO0W7c44uHKCFGFqBhDasdI4RCYP+fcIX/lyMh6MLbOxqS22TwSLhCVjTyJeeH7K\naA7vqk+QSsF4TGbYzQDDpg7+6aAcNzg6InNePaywA6hbT0JXbxnDWsB+2/LLSF2G\nmnhJlJrWB1WGjkz23ONIWk85W4S0XB/ewDefd4Ly/zyIciastA7Zqnh7p3Ody6Q0\nsS2MJzo7p3os1smGjUF158s6m/JbVh4DN6YIsxwl2OjDOz9R0OycfJSDaBVIGZzg\ncQIDAQAB524d27bb:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr8s1q88XpuJWLCZALdKj\nlN8wg2ePB2T9aIcaxryYE/Jkmtu+ZQ5zKq6BT3y/udt5jAsMrhHTwroOjIsF9DeG\ne8Y3vjz+Hh4L8a7hZDaw8jy3CPag47L7nsZFwQOIo2Cl1SnzUc6/owoyjRU7ab0p\niWG5HK8IfiybRbZxnEbNAfT4R53hyI6z5FhyXGS2Ld8zCoU/R4E1P0CUuXKEN4p0\n64dyeUoOLXEWHjgKiU1mElIQj3k/IF02W89gDj285YgwqA49deLUM7QOd53QLnx+\nxrIrPv3A+eyXMFgexNwCKQU9ZdmWa00MjjHlegSGK8Y2NPnRoXhzqSP9T9i2HiXL\nVQIDAQAB5261cecb:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwlzMkl7b5PBdfMzGdCT0\ncGloRr5xGgVmsdq5EtJvFkFAiN8Ac9MCFy/vAFmS8/7ZaGOXoCDWbYVLTLOO2qtX\nyHRl+7fJVh2N6qrDDFPmdgCi8NaE+3rITWXGrrQ1spJ0B6HIzTDNEjRKnD4xyg4j\ng01FMcJTU6E+V2JBY45CKN9dWr1JDM/nei/Pf0byBJlMp/mSSfjodykmz4Oe13xB\nCa1WTwgFykKYthoLGYrmo+LKIGpMoeEbY1kuUe04UiDe47l6Oggwnl+8XD1MeRWY\nsWgj8sF4dTcSfCMavK4zHRFFQbGp/YFJ/Ww6U9lA3Vq0wyEI6MCMQnoSMFwrbgZw\nwwIDAQAB58199dcc:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3v8/ye/V/t5xf4JiXLXa\nhWFRozsnmn3hobON20GdmkrzKzO/eUqPOKTpg2GtvBhK30fu5oY5uN2ORiv2Y2ht\neLiZ9HVz3XP8Fm9frha60B7KNu66FO5P2o3i+E+DWTPqqPcCG6t4Znk2BypILcit\nwiPKTsgbBQR2qo/cO01eLLdt6oOzAaF94NH0656kvRewdo6HG4urbO46tCAizvCR\nCA7KGFMyad8WdKkTjxh8YLDLoOCtoZmXmQAiwfRe9pKXRH/XXGop8SYptLqyVVQ+\ntegOD9wRs2tOlgcLx4F/uMzHN7uoho6okBPiifRX+Pf38Vx+ozXh056tjmdZkCaV\naQIDAQAB58cbb476:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoSPnuAGKtRIS5fEgYPXD\n8pSGvKAmIv3A08LBViDUe+YwhilSHbYXUEAcSH1KZvOo1WT1x2FNEPBEFEFU1Eyc\n+qGzbA03UFgBNvArurHQ5Z/GngGqE7IarSQFSoqewYRtFSfp+TL9CUNBvM0rT7vz\n2eMu3/wWG+CBmb92lkmyWwC1WSWFKO3x8w+Br2IFWvAZqHRt8oiG5QtYvcZL6jym\nY8T6sgdDlj+Y+wWaLHs9Fc+7vBuyK9C4O1ORdMPW15qVSl4Lc2Wu1QVwRiKnmA+c\nDsH/m7kDNRHM7TjWnuj+nrBOKAHzYquiu5iB3Qmx+0gwnrSVf27Arc3ozUmmJbLj\nzQIDAQAB58e4f17d:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvBxJN9ErBgdRcPr5g4hV\nqyUSGZEKuvQliq2Z9SRHLh2J43+EdB6A+yzVvLnzcHVpBJ+BZ9RV30EM9guck9sh\nr+bryZcRHyjG2wiIEoduxF2a8KeWeQH7QlpwGhuobo1+gA8L0AGImiA6UP3LOirl\nI0G2+iaKZowME8/tydww4jx5vG132JCOScMjTalRsYZYJcjFbebQQolpqRaGB4iG\nWqhytWQGWuKiB1A22wjmIYf3t96l1Mp+FmM2URPxD1gk/BIBnX7ew+2gWppXOK9j\n1BJpo0/HaX5XoZ/uMqISAAtgHZAqq+g3IUPouxTphgYQRTRYpz2COw3NF43VYQrR\nbQIDAQAB60ac2099:MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwR4uJVtJOnOFGchnMW5Y\nj5/waBdG1u5BTMlH+iQMcV5+VgWhmpZHJCBz3ocD+0IGk2I68S5TDOHec/GSC0lv\n6R9o6F7h429GmgPgVKQsc8mPTPtbjJMuLLs4xKc+viCplXc0Nc0ZoHmCH4da6fCV\ntdpHQjVe6F9zjdquZ4RjV6R6JTiN9v924dGMAkbW/xXmamtz51FzondKC52Gh8Mo\n/oA0/T0KsCMCi7tb4QNQUYrf+Xcha9uus4ww1kWNZyfXJB87a2kORLiWMfs2IBBJ\nTmZ2Fnk0JnHDb8Oknxd9PvJPT0mvyT8DA+KIAPqNvOjUXP4bnjEHJcoCP9S5HkGC\nIQIDAQAB6165ee59:MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAutQkua2CAig4VFSJ7v54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\nhtBqojBnThmjJQFgZXocHG8CAwEAAQ==61666e3f:MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAlEyxkHggKCXC2Wf5Mzx4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\nrO5kbUxFeZUIDq+7Yv4kLWcCAwEAAQ==616a9724:MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnC+bR4bHf/L6QdU4puhQ\ngl1MHePszRC38bzvVFDUJsmCaMCL2suCs2A2yxAgGb9pu9AJYLAmxQC4mM3jN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Version of alpine-chroot-install script.VERSION='0.14.0'#======================= F u n c t i o n s =======================#die() { printf '\033[1;31mERROR:\033[0m %s\n' "$@" >&2 # bold red exit 1}einfo() { printf '\n\033[1;36m> %s\033[0m\n' "$@" >&2 # bold cyan}ewarn() { printf '\033[1;33m> %s\033[0m\n' "$@" >&2 # bold yellow}# Writes Alpine APK keys embedded in this script into directory $1.dump_alpine_keys() { local dest_dir="$1" local content id line mkdir -p "$dest_dir" for line in $ALPINE_KEYS; do id=${line%%:*} content=${line#*:} printf -- "-----BEGIN PUBLIC KEY-----\n$content\n-----END PUBLIC KEY-----\n" \ > "$dest_dir/alpine-devel@lists.alpinelinux.org-$id.rsa.pub" done}normalize_arch() { case "$1" in x86 | i[3456]86) echo 'i386';; armhf | armv[4-9]) echo 'arm';; *) echo "$1";; esac}fetch_url() { local url="$1" echo "fetch $url" >&2 if command -v curl >/dev/null; then curl --remote-name --connect-timeout 10 -fsSL "$url" elif command -v wget >/dev/null; then wget -T 10 --no-verbose "$url" else die 'Cannot download a file: neither curl nor wget is available!' fi}download_file() ( local url="$1" local sha256="$2" local dest="${3:-.}" mkdir -p "$dest" \ && cd "$dest" \ && rm -f "${url##*/}" \ && fetch_url "$url" \ && echo "$sha256 ${url##*/}" | sha256sum -c)usage() { sed -En '/^#---help---/,/^#---help---/p' "$0" | sed -E 's/^# ?//; 1d;$d;'}gen_chroot_script() { cat <<-EOF #!/bin/sh set -e ENV_FILTER_REGEX='($(echo "$CHROOT_KEEP_VARS" | tr -s ' ' '|'))' EOF if [ -n "$QEMU_EMULATOR" ]; then printf 'export QEMU_EMULATOR="%s"' "$QEMU_EMULATOR" fi cat <<-'EOF' user='root' if [ $# -ge 2 ] && [ "$1" = '-u' ]; then user="$2"; shift 2 fi oldpwd="$(pwd)" [ "$(id -u)" -eq 0 ] || _sudo='sudo' tmpfile="$(mktemp)" chmod 644 "$tmpfile" export | sed -En "s/^([^=]+ ${ENV_FILTER_REGEX}=)('.*'|\".*\")$/\1\3/p" > "$tmpfile" || true cd "$(dirname "$0")" $_sudo mv "$tmpfile" env.sh $_sudo chroot . /usr/bin/env -i su -l "$user" \ sh -c ". /etc/profile; . /env.sh; cd '$oldpwd' 2>/dev/null; \"\$@\"" \ -- "${@:-sh}" EOF # NOTE: ash does not load login profile when run with QEMU user-mode # emulation (I have no clue why), that's why /etc/profile is sourced here.}gen_destroy_script() { cat <<-'EOF' #!/bin/sh set -e remove=no case "$1" in -r | --remove) remove=yes;; '') ;; *) echo "Usage: $0 [-r | --remove]"; exit 1;; esac SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd) [ "$(id -u)" -eq 0 ] || _sudo='sudo' # Unmounts all filesystem under the specified directory tree. cat /proc/mounts | cut -d' ' -f2 | grep "^$SCRIPT_DIR." | sort -r | while read path; do echo "Unmounting $path" >&2 $_sudo umount -fn "$path" || exit 1 done if [ "$remove" = yes ]; then rm_opts='' # Just to be extra careful... rm --help 2>&1 | grep -Fq 'one-file-system' && rm_opts='--one-file-system' echo "Removing $SCRIPT_DIR" >&2 $_sudo rm -Rf $rm_opts "$SCRIPT_DIR" else echo "If you want to remove $SCRIPT_DIR directory, run: $0 --remove" >&2 fi EOF}#------------------------- Debian/Ubuntu ---------------------------#APT_UPDATED=noapt_install() { if [ "$APT_UPDATED" != yes ]; then apt-get update APT_UPDATED=yes fi # -o=Dpkg::Use-Pty=0 - get rid of annoying "Reading database ..." messages. apt-get install -y -o=Dpkg::Use-Pty=0 --no-install-recommends "$@"}# Installs and enables binfmt-support on Debian/Ubuntu host.install_binfmt_support() { apt_install binfmt-support \ || die 'Failed to install binfmt-support using apt-get!' update-binfmts --enable \ || die 'Failed to enable binfmt!'}# Installs QEMU user mode emulation binaries on Debian/Ubuntu host.install_qemu_user() { apt_install qemu-user-static \ || die 'Failed to install qemu-user-static using apt-get!'}#============================ M a i n ============================#while getopts 'a:b:d:i:k:m:p:r:t:hv' OPTION; do case "$OPTION" in a) ARCH="$OPTARG";; b) ALPINE_BRANCH="$OPTARG";; d) CHROOT_DIR="$OPTARG";; i) BIND_DIR="$OPTARG";; k) CHROOT_KEEP_VARS="${CHROOT_KEEP_VARS:-} $OPTARG";; m) ALPINE_MIRROR="$OPTARG";; p) ALPINE_PACKAGES="${ALPINE_PACKAGES:-} $OPTARG";; r) EXTRA_REPOS="${EXTRA_REPOS:-} $OPTARG";; t) TEMP_DIR="$OPTARG";; h) usage; exit 0;; v) echo "alpine-chroot-install $VERSION"; exit 0;; esacdone: ${ALPINE_BRANCH:="latest-stable"}: ${ALPINE_MIRROR:="http://dl-cdn.alpinelinux.org/alpine"}: ${ALPINE_PACKAGES:="build-base ca-certificates ssl_client"}: ${ARCH:=}: ${BIND_DIR:=}: ${CHROOT_DIR:="/alpine"}: ${CHROOT_KEEP_VARS:="ARCH CI QEMU_EMULATOR TRAVIS_.*"}: ${EXTRA_REPOS:=}: ${TEMP_DIR:=$(mktemp -d || echo /tmp/alpine)}# Note: Binding $PWD into chroot as default was a bad idea. It's convenient# on Travis, but dangerous in general. However, all existing .travis.yml relies# on this behaviour, so we can't (shouldn't) remove it completely.[ "$BIND_DIR" ] || case "$(pwd)" in /home/*) BIND_DIR="$(pwd)";;esacif [ "$(id -u)" -ne 0 ]; then die 'This script must be run as root!'fimkdir -p "$CHROOT_DIR"cd "$CHROOT_DIR"# Install QEMU user mode emulation if needed (works only on Debian and derivates)QEMU_EMULATOR=''if [ -n "$ARCH" ] && [ $(normalize_arch $ARCH) != $(normalize_arch $(uname -m)) ]; then qemu_arch="$(normalize_arch $ARCH)" QEMU_EMULATOR="/usr/bin/qemu-$qemu_arch-static" if [ ! -x "$QEMU_EMULATOR" ]; then einfo 'Installing qemu-user-static on host system...' install_qemu_user fi if [ ! -e /proc/sys/fs/binfmt_misc/qemu-$qemu_arch ]; then einfo 'Installing and enabling binfmt-support on host system...' install_binfmt_support fi mkdir -p usr/bin cp -v "$QEMU_EMULATOR" usr/bin/fieinfo 'Downloading static apk-tools'download_file "$APK_TOOLS_URI" "$APK_TOOLS_SHA256" "$TEMP_DIR"APK="$TEMP_DIR/apk.static"chmod +x "$APK"einfo "Installing Alpine Linux $ALPINE_BRANCH ($ARCH) into chroot"mkdir -p "$CHROOT_DIR"/etc/apkcd "$CHROOT_DIR"printf '%s\n' \ "$ALPINE_MIRROR/$ALPINE_BRANCH/main" \ "$ALPINE_MIRROR/$ALPINE_BRANCH/community" \ $EXTRA_REPOS \ > etc/apk/repositoriesdump_alpine_keys etc/apk/keys/cp /etc/resolv.conf etc/resolv.conf"$APK" add \ --root . --update-cache --initdb --no-progress \ ${ARCH:+--arch $ARCH} \ alpine-baselayout apk-tools busybox busybox-suid musl-utilsif "$APK" info --root . --no-progress --quiet alpine-release >/dev/null; then "$APK" add --root . --no-progress alpine-releaseelse # In Alpine <3.17, this package contains /etc/os-release, # /etc/alpine-release and /etc/issue, but we don't wanna install all # its dependencies (e.g. openrc). "$APK" fetch --root . --no-progress --stdout alpine-base \ | tar -xz etcfigen_chroot_script > enter-chrootgen_destroy_script > destroychmod +x enter-chroot destroyeinfo 'Binding filesystems into chroot'mount -v -t proc none procmount -v --rbind /sys sysmount --make-rprivate sysmount -v --rbind /dev devmount --make-rprivate dev# Some systems (Ubuntu?) symlinks /dev/shm to /run/shm.if [ -L /dev/shm ] && [ -d /run/shm ]; then mkdir -p run/shm mount -v --bind /run/shm run/shm mount --make-private run/shmfiif [ -d "$BIND_DIR" ]; then mkdir -p "${CHROOT_DIR}${BIND_DIR}" mount -v --bind "$BIND_DIR" "${CHROOT_DIR}${BIND_DIR}" mount --make-private "${CHROOT_DIR}${BIND_DIR}"fieinfo 'Setting up Alpine'./enter-chroot <<-EOF set -e apk update apk add $ALPINE_PACKAGES if [ -d /etc/sudoers.d ] && [ ! -e /etc/sudoers.d/wheel ]; then echo '%wheel ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/wheel fi if [ -n "${SUDO_USER:-}" ]; then adduser -u "${SUDO_UID:-1000}" -G users -s /bin/sh -D "${SUDO_USER:-}" || true fiEOFcat >&2 <<-EOF --- Alpine installation is complete Run $CHROOT_DIR/enter-chroot [-u <user>] [command] to enter the chroot and $CHROOT_DIR/destroy [--remove] to destroy it.EOF