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675 lines
20 KiB
675 lines
20 KiB
#!/bin/bash
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RED='\e[0;41m\e[1;37m'
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GREEN='\033[0;32m'
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YELLOW='\033[0;33m'
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PURPLE='\033[0;35m'
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DARK='\e[100m'
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NC='\033[0m' # No Color
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TO_BE_DEFINED="TO BE DEFINED"
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# BOLD='\033[1m'
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# DIM='\e[2m\e[0;90m'
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function echo() {
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[[ -n ${PREFIX:-} ]] && printf "${DARK}%25.25s${NC} " "${PREFIX}"
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builtin echo "$@"
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}
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function check_normal_user() {
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[[ $(id -u) -lt 1000 ]] && echoerr "normal user (>1000) expected, please connect as a normal user then call again!" && exit 100
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return 0
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}
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function sudo_required() {
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check_normal_user
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command -v sudo &>/dev/null &&
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id -G | grep -q sudo && echoerr "command <sudo> not found, please install as so: \`apt install -y sudo\`" && exit 1
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if ! sudo -n true &>/dev/null; then
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if [[ -n "${1:-}" ]]; then
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echowarnn "[sudo] requiring authorized access for: [ $1 ]"
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else
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echowarnn "[sudo] requiring authorized access for further processing"
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fi
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fi
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sudo -vp ' : '
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}
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# idempotent cargo install <package1 package2 ...>
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function idem_cargo_install() {
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for i in "$@"; do
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if [ ! -f ~/.cargo/bin/"$i" ]; then
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cargo install "$i"
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fi
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done
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}
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# display error in red
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function echoerr() {
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echo -e "${RED}$*${NC}" >&2
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}
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function echoerrn() {
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echo -en "${RED}$*${NC}" >&2
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}
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# display warn in yellow
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function echowarn() {
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echo -e "${YELLOW}$*${NC}" >&2
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}
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function echowarnn() {
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echo -en "${YELLOW}$*${NC}" >&2
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}
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# display error in green
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function echoinfo() {
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echo -e "${GREEN}$*${NC}" >&2
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}
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function echoinfon() {
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echo -en "${GREEN}$*${NC}" >&2
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}
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# test whether <ip> is a valid ipv4 address?
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function valid_ipv4() {
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local ip="$1"
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if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
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IFS='.' read -ra ADDR <<<"$ip"
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[[ ${ADDR[0]} -le 255 && ${ADDR[1]} -le 255 && ${ADDR[2]} -le 255 && ${ADDR[3]} -le 255 ]]
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return $?
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fi
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return 1
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}
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function enable_trace() {
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trap 'trap_error $? ${LINENO:-0} ${BASH_LINENO:-0} ${BASH_COMMAND:-empty} $(printf "::%s" ${FUNCNAME[@]})' ERR
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}
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function disable_trace() {
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trap - ERR
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}
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function prepare_nftables() {
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local PREFIX="miaou:nftables"
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if [[ ! -f /etc/nftables.rules.d/firewall.table ]]; then
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echo "installing nftables ..."
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sudo apt install -y nftables
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sudo cp -f "$MIAOU_BASEDIR/templates/hardened/nftables.conf" /etc/
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sudo mkdir -p /etc/nftables.rules.d
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sudo cp -f "$MIAOU_BASEDIR/templates/hardened/firewall.table" /etc/nftables.rules.d/
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sudo systemctl restart nftables
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sudo systemctl enable nftables
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echo "OK"
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else
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echo "nftables already installed!"
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fi
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}
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function miaou_init() {
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# shellcheck source=/dev/null
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[[ -f /opt/miaou-bash/lib/functions.sh ]] && source /opt/miaou-bash/lib/functions.sh
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# shellcheck source=/dev/null
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. "$MIAOU_BASEDIR/lib/functions.sh"
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export MIAOU_CONFIGDIR="$HOME/.config/miaou"
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set -Eeuo pipefail
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enable_trace
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trap 'ctrl_c $? ${LINENO:-0} ${BASH_LINENO:-0} ${BASH_COMMAND:-empty} $(printf "::%s" ${FUNCNAME[@]})' INT
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}
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function ctrl_c() {
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PREFIX="miaou:trap" echoerr "Ctrl + C happened, exiting!!! $*"
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exit 125
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}
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# extract source code error triggered on trap error <error_code> <error_line>
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function trap_error() {
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ERRORS_COUNT=0
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if [[ -f "$MIAOU_CONFIGDIR"/error_count ]]; then
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ERRORS_COUNT=$(cat "$MIAOU_CONFIGDIR"/error_count)
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else
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mkdir -p "$MIAOU_CONFIGDIR"
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printf 0 >"$MIAOU_CONFIGDIR"/error_count
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fi
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ERRORS_COUNT=$((ERRORS_COUNT + 1))
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printf '%s' $ERRORS_COUNT >"$MIAOU_CONFIGDIR"/error_count
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local PREFIX=""
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# local file="${0:-}"
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local err=$1 # error status
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local line=$2 # LINENO
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local linecallfunc=${3:-}
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local command="${4:-}"
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local funcstack="${5:-}"
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local caller
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caller=$(caller | cut -d' ' -f2)
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# echo >&2
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# if [ "$funcstack" != "::" ]; then
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# echo -e "${RED}ERROR <$err>, due to command <$command> at line $line from <$caller>, stack=${funcstack}${NC}" >&2
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# else
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# echo >&2 "ERROR DETECTED"
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# fi
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# echo
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# echo -e "${PURPLE}$caller:$line ${NC}EXIT ${RED}<$err>${NC}" >&2
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# echo -e "${PURPLE}------------------------------------------ ${NC}" >&2
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if [[ $ERRORS_COUNT == 1 ]]; then
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echo
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echo -e "${RED}ERROR <$err>, due to command <$command $funcstack>${NC}" >&2
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fi
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echo -e "${PURPLE}$ERRORS_COUNT: $caller:$line ${RED}$command $funcstack${NC}" >&2
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# echo -e "${PURPLE}----------------------------- ${PURPLE}EXIT CODE ${PURPLE}--------------${PURPLE} $err ${NC}" >&2
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# if [[ $line -gt 2 ]]; then
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# sed "$((line - 2))q;d" "$caller" >&2
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# sed "$((line - 1))q;d" "$caller" >&2
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# fi
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# echo -ne "${BOLD}" >&2
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# sed "${line}q;d" "$caller" >&2
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# echo -e "${PURPLE}------------------------------------------ ${NC}" >&2
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}
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# exist_command(cmd1, ...)
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# test all commands exist, else fail
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function exist_command() {
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for i in "$@"; do
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command -v "$i" &>/dev/null || return 50
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done
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}
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# test whether container <ct> is up and running?
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function container_running() {
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arg1_required "$@"
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container_exists "$1" && lxc list "$1" -c ns -f csv | head -n1 | grep -q "$1,RUNNING"
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lxc exec "$1" -- bash <<EOF
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set -Eeuo pipefail
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if [[ ! -f /root/cloud-status.json ]]; then
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cloud-init status --wait >/dev/null
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fi
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EOF
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}
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# test arg1 required
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function arg1_required() {
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[[ -z "${1:-}" ]] && echoerr "ERROR: arg#1 expected!" && return 125
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return 0
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}
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# test arg2 required
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function arg2_required() {
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[[ -z "${2:-}" ]] && echoerr "ERROR: arg#2 expected!" && return 125
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return 0
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}
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# test arg3 required
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function arg3_required() {
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[[ -z "${3:-}" ]] && echoerr "ERROR: arg#3 expected!" && return 125 || return 0
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}
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# test whether container <ct> exists yet?
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function container_exists() {
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arg1_required "$@"
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lxc list "$1" -c n -f csv | grep -q "^$1\$"
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}
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# 3 args expected: <commmand> <delay in s, example: 0.2> <max_attempts>
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function wait_for_command {
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arg3_required "$@"
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command=$1
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delay=$2
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max_attempt=$3
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attempt=0
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while ! eval "$command"; do
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attempt=$((attempt + 1))
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if [[ $attempt -gt $max_attempt ]]; then
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echoerr "command <$command> failed after a delay of $(bc <<<"$max_attempt * $delay")s and $max_attempt attempts"
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return 1
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else
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sleep "$delay"
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fi
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done
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echo SUCCESS
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}
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function wait_for_container_full_initialization {
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arg1_required "$@"
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wait_for_command "lxc exec $1 -- test -f /root/cloud-status.json" 0.2 40
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}
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# build debian image with prebuild miaou-bash and various useful settings
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# ARG1=release [bullseye, buster]
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function build_miaou_image() {
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local RELEASE="$1"
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local IMAGE_LABEL="$RELEASE-miaou"
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local PREFIX="miaou:image"
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local DEB_REPOSITORY
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DEB_REPOSITORY=$(grep ^deb /etc/apt/sources.list | head -n1 | cut -d ' ' -f2 | cut -d '/' -f3)
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if ! lxc image -cl list -f csv | grep -q "$IMAGE_LABEL"; then
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echo "building lxc image <$IMAGE_LABEL> ... "
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echo "image will reuse same local repository <$DEB_REPOSITORY>"
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creation_date=$(date +%s)
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sudo /opt/miaou-bash/tools/idem_apt_install debootstrap
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cat <<EOF1 | sudo bash
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set -euo pipefail
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rm -rf /tmp/$IMAGE_LABEL{,-image}
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mkdir -p /tmp/$IMAGE_LABEL{,-image}
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debootstrap $RELEASE /tmp/$IMAGE_LABEL http://$DEB_REPOSITORY/debian
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echo
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echo "DEBOOTSTRAP ... OK"
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echo
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cat <<EOF2 | chroot /tmp/$IMAGE_LABEL
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set -euo pipefail
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echo "image prepare source.list from $DEB_REPOSITORY"
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if [[ "$RELEASE" == "buster" ]]; then
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cat <<EOF3 >/etc/apt/sources.list
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deb http://$DEB_REPOSITORY/debian $RELEASE main contrib
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deb http://$DEB_REPOSITORY/debian $RELEASE-updates main contrib
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deb http://$DEB_REPOSITORY/debian-security/ $RELEASE/updates main contrib
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EOF3
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else
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cat <<EOF3 >/etc/apt/sources.list
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deb http://$DEB_REPOSITORY/debian $RELEASE main contrib
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deb http://$DEB_REPOSITORY/debian $RELEASE-updates main contrib
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deb http://$DEB_REPOSITORY/debian-security/ $RELEASE-security main contrib
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EOF3
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fi
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echo APT UPDATE
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apt update && apt dist-upgrade -y
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apt install -y curl wget file git sudo bash-completion
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curl https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo bash -s -- --host
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# TODO: remove line below
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# ln -sf /usr/share/zoneinfo/Indian/Reunion /etc/localtime
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cat <<EOF3 >/etc/network/interfaces
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# This file describes the network interfaces available on your system
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# and how to activate them. For more information, see interfaces(5).
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# The loopback network interface
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auto lo
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iface lo inet loopback
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auto eth0
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iface eth0 inet dhcp
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source /etc/network/interfaces.d/*
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EOF3
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echo "deboostrap ready!"
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EOF2
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cd /tmp/$IMAGE_LABEL-image
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tar -czf rootfs.tar.gz -C /tmp/$IMAGE_LABEL .
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cat <<EOF2 >metadata.yaml
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architecture: "x86_64"
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creation_date: $creation_date
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properties:
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architecture: "x86_64"
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description: "Debian $RELEASE for miaou instances"
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os: "debian"
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release: "$RELEASE"
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EOF2
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tar -czf metadata.tar.gz metadata.yaml
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EOF1
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lxc image import "/tmp/$IMAGE_LABEL-image/metadata.tar.gz" "/tmp/$IMAGE_LABEL-image/rootfs.tar.gz" --alias "$IMAGE_LABEL"
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echo "image <$IMAGE_LABEL> successfully built!"
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echo DONE
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else
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echo "image <$IMAGE_LABEL> already built!"
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fi
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}
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# convert array to string according to IFS arg1
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# example: join "," "${MY_ARRAY[@]}" => one,two,three
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function join() {
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local IFS="$1"
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shift
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echo "$*"
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}
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# execute remote scripting onto one LXC container <CONTAINER> [COMMANDS, ...]
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# may use one command like: `lxc_exec ct1 uname -a`
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# or pipe like so: `
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# cat <<EOF | lxc_exec ct1
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# ls -l
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# uname -a
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# echo [\$0] [\$1] [\$2] # toto titi tata
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# EOF
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# `
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function lxc_exec() {
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arg1_required "$@"
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container="$1"
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shift
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declare -a ARGUMENTS
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ARGUMENTS=(toto titi tata) # might be overriden with interesting stuff!
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if ((${#} == 0)); then
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multiline=""
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while read -r line; do
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if [[ ! "$line" =~ ^\# ]] && [[ ! "$line" =~ ^[[:space:]]*$ ]]; then
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if [[ "$line" =~ .*\;$ ]] || [[ "$line" =~ do$ ]] || [[ "$line" =~ then$ ]] || [[ "$line" =~ else$ ]]; then
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multiline+="${line} " # append space in case of ending with either '; do then else'
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else
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multiline+="${line};" # append ; for multiple commands
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fi
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fi
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done
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# echo "DEBUG: multiline = [$multiline]"
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# echo DEBUG: lxc exec "$container" -- bash -lc "$multiline" "${ARGUMENTS[@]}"
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lxc exec "$container" -- bash -lc "$multiline" "${ARGUMENTS[@]}"
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else
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lxc exec "$container" -- bash -lc "$*" "${ARGUMENTS[@]}"
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fi
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}
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# check container exist and running
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function check_container() {
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arg1_required "$@"
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local CT="$1"
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container_exists "$CT"
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container_running "$CT"
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}
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function launch_container() {
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arg1_required "$@"
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local ct="$1"
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if ! container_exists "$ct"; then
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echo "container <$ct> about to be created ..."
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local extra_release="${2:-}"
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if [[ -n "$extra_release" ]] && ! lxc image info "${extra_release}-miaou" >/dev/null; then
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echoerrn "unknown extra_release <${extra_release}-miaou>!\nHINT : please add it into /etc/miaou/defaults.yaml, then re-install miaou!"
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exit 128
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fi
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if [[ -n "$extra_release" ]]; then
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echoerrn "FIXME: lxc-miaou-create -o release=bookworm should be implemented ...."
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lxc-miaou-create "$ct" "$extra_release"
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else
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lxc-miaou-create "$ct"
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fi
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echo "DONE"
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fi
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if ! container_running "$ct"; then
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echowarn "container <$ct> seems to be asleep, starting ..."
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lxc start "$ct"
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echowarn DONE
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fi
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}
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function load_yaml_from_expanded {
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arg1_required "$@"
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yaml_key="$1"
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yaml_file="$MIAOU_CONFIGDIR/miaou.expanded.yaml"
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yaml_value=$(yq ".$yaml_key" "$yaml_file")
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if [[ -n "$yaml_value" ]] && [[ "$yaml_value" != "null" ]] && [[ "$yaml_value" != "$TO_BE_DEFINED" ]]; then
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PREFIX="" echo "$yaml_value"
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else
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echoerr "undefined value for key: <$yaml_key> from file: <$yaml_file>"
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return 98
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fi
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}
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function check_yaml_defined_value {
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yaml_file="$1"
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yaml_key="$2"
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yaml_value=$(yq ".$yaml_key" "$yaml_file")
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if [[ -n "$yaml_value" ]] && [[ "$yaml_value" != "null" ]] && [[ "$yaml_value" != "$TO_BE_DEFINED" ]]; then
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return 0
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else
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echoerr "undefined value for key: <$yaml_key> from file: <$yaml_file>"
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return 99
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fi
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}
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# halt unless current user is root
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function root_required() {
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[[ $(id -u) == 0 ]] || (echoerr "root required" && return 1)
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}
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# arg#1: environment variable
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# read from environment or ask entry before exporting new variable
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function env_or_ask {
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if [[ -n ${1+x} ]]; then
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if printenv "$1" >/dev/null; then
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echo "value defined as $(printenv "$1")"
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else
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printf "Please define %20s: " "$1"
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read -r
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export "$1=\"$REPLY\"" >/dev/null
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fi
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else
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echoerr "env_or_ask requires one argument: <VARIABLE_NAME>" && exit 5
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fi
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}
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# grab and install related project
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function install_miaou_bash() {
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local PREFIX="miaou-bash:install"
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if [[ ! -d /opt/miaou-bash ]]; then
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echo "installing curl wget commands ..."
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sudo apt install -y curl wget
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echo "installing miaou-bash..."
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curl https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo bash -s -- --host
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export PATH=$PATH:/opt/miaou-bash/tools/
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echo "OK"
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else
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echo "addon <miaou-bash> already installed!"
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fi
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# shellcheck source=/dev/null
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source /etc/bash.bashrc
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sudo /opt/miaou-bash/tools/idem_apt_install bash-completion
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}
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function add_toolbox_sudoers {
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local PREFIX="toolbox:sudoers"
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echo -n "creating sudoers file to allow sudo as command from /TOOLBOX... "
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sudo mkdir -p /etc/sudoers.d
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if [[ ! -f /etc/sudoers.d/add_TOOLBOX_to_PATH ]]; then
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sudo tee /etc/sudoers.d/add_TOOLBOX_to_PATH &>/dev/null <<EOF
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Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/TOOLBOX"
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EOF
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PREFIX="" echo "updated!"
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else
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PREFIX="" echo "already done!"
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fi
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}
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function prepare_toolbox() {
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local PREFIX="toolbox:prepare"
|
|
sudo mkdir -p /TOOLBOX
|
|
|
|
if ! command -v cargo &>/dev/null; then
|
|
echo -n "installing <cargo> ... "
|
|
curl -sSf https://sh.rustup.rs | sh -s -- -y
|
|
# shellcheck source=/dev/null
|
|
source "$HOME/.cargo/env"
|
|
/opt/miaou-bash/tools/append_or_replace "^PATH=\$PATH:\$HOME/\\.cargo/bin" "PATH=\$PATH:\$HOME/.cargo/bin" ~/.bashrc
|
|
PREFIX="" echo "OK"
|
|
else
|
|
echo "command <cargo> already installed!"
|
|
fi
|
|
|
|
echo -n "installing <fd> ... "
|
|
if [ ! -f "/TOOLBOX/fd" ]; then
|
|
idem_cargo_install fd-find
|
|
sudo cp "$HOME"/.cargo/bin/fd /TOOLBOX/fd
|
|
PREFIX="" echo "successfully installed!"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <viu> ... "
|
|
if [ ! -f "/TOOLBOX/viu" ]; then
|
|
idem_cargo_install viu
|
|
sudo cp "$HOME"/.cargo/bin/viu /TOOLBOX/
|
|
PREFIX="" echo "successfully installed!"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <rg> alias <ripgrep> ... "
|
|
if [ ! -f "/TOOLBOX/rg" ]; then
|
|
|
|
sudo /opt/miaou-bash/tools/idem_apt_install ripgrep
|
|
sudo ln /usr/bin/rg /TOOLBOX/
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <ag> alias <silversearcher-ag> ... "
|
|
if [ ! -f "/TOOLBOX/ag" ]; then
|
|
sudo /opt/miaou-bash/tools/idem_apt_install silversearcher-ag
|
|
sudo ln /usr/bin/ag /TOOLBOX/
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <bandwhich> ... "
|
|
if [ ! -f "/TOOLBOX/bandwhich" ]; then
|
|
idem_cargo_install bandwhich
|
|
sudo cp "$HOME"/.cargo/bin/bandwhich /TOOLBOX/bandwhich
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <btm> alias <bottom> ... "
|
|
if [ ! -f "/TOOLBOX/btm" ]; then
|
|
VERSION=$(wget_semver github ClementTsang/bottom)
|
|
cd /tmp
|
|
wget "https://github.com/ClementTsang/bottom/releases/download/$VERSION/bottom_x86_64-unknown-linux-musl.tar.gz"
|
|
tar -xzvf bottom_x86_64-unknown-linux-musl.tar.gz
|
|
sudo cp btm /usr/local/bin/
|
|
sudo ln /usr/local/bin/btm /TOOLBOX/
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <micro> ... "
|
|
if [ ! -f "/TOOLBOX/micro" ]; then
|
|
cd /tmp || (echoerr "/tmp wrong permission" && exit 101)
|
|
curl -q https://getmic.ro | GETMICRO_REGISTER=n sh
|
|
sudo mv micro /TOOLBOX/micro
|
|
sudo chown root:root /TOOLBOX/micro
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <ncdu> ... "
|
|
if [ ! -f "/TOOLBOX/ncdu" ]; then
|
|
sudo /opt/miaou-bash/tools/idem_apt_install ncdu
|
|
sudo cp /usr/bin/ncdu /TOOLBOX/ncdu
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <unzip> ... "
|
|
if [ ! -f "/TOOLBOX/unzip" ]; then
|
|
sudo /opt/miaou-bash/tools/idem_apt_install unzip
|
|
sudo cp /usr/bin/unzip /TOOLBOX/unzip
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <tree> ... "
|
|
if [ ! -f "/TOOLBOX/tree" ]; then
|
|
sudo /opt/miaou-bash/tools/idem_apt_install tree
|
|
sudo cp /bin/tree /TOOLBOX/tree
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <duf> ... "
|
|
if [ ! -f "/TOOLBOX/duf" ]; then
|
|
VERSION=$(/opt/miaou-bash/tools/wget_semver github muesli/duf)
|
|
VERSION_WITHOUT_V=${VERSION#v}
|
|
wget -O /tmp/duf.deb "https://github.com/muesli/duf/releases/download/${VERSION}/duf_${VERSION_WITHOUT_V}_linux_amd64.deb"
|
|
sudo dpkg -i /tmp/duf.deb
|
|
sudo cp /bin/duf /TOOLBOX/duf
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <curl> ... "
|
|
if [ ! -f "/TOOLBOX/curl" ]; then
|
|
sudo wget -O /TOOLBOX/curl "https://github.com/moparisthebest/static-curl/releases/latest/download/curl-amd64"
|
|
sudo chmod +x /TOOLBOX/curl
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
echo -n "installing <wget> ... "
|
|
if [ ! -f "/TOOLBOX/wget" ]; then
|
|
sudo ln -f /usr/bin/wget /TOOLBOX/wget
|
|
PREFIX="" echo "successfully installed"
|
|
else
|
|
PREFIX="" echo "already done!"
|
|
fi
|
|
|
|
}
|
|
|
|
# install_mandatory_commands
|
|
function install_mandatory_commands() {
|
|
local PREFIX="mandatory:commands"
|
|
|
|
sudo /opt/miaou-bash/tools/idem_apt_install dnsutils build-essential curl mariadb-client postgresql-client
|
|
|
|
if ! exist_command tera; then
|
|
echo "installing <tera> ..."
|
|
|
|
local version=v0.2.4
|
|
wget -q "https://github.com/chevdor/tera-cli/releases/download/${version}/tera-cli_linux_amd64.deb" -O /tmp/tera-cli_linux_amd64.deb
|
|
sudo dpkg -i /tmp/tera-cli_linux_amd64.deb
|
|
else
|
|
echo "command <tera> already installed!"
|
|
fi
|
|
|
|
if ! exist_command yq; then
|
|
local version binary
|
|
version='v4.35.2'
|
|
binary='yq_linux_amd64'
|
|
|
|
sudo sh -c "wget https://github.com/mikefarah/yq/releases/download/${version}/${binary}.tar.gz -O - |\
|
|
tar -xz ./${binary} && sudo mv ${binary} /usr/bin/yq"
|
|
else
|
|
echo "command <yq> already installed!"
|
|
fi
|
|
|
|
}
|
|
|
|
# flatten array, aka remove duplicated elements in array
|
|
# return: `mapfile -t OUTPUT_ARRAY < <(sort_array "${INPUT_ARRAY[@]}")`
|
|
function flatten_array {
|
|
declare -a array=("$@")
|
|
IFS=" " read -r -a array <<<"$(tr ' ' '\n' <<<"${array[@]}" | sort -u | tr '\n' ' ')"
|
|
printf '%s\n' "${array[@]}"
|
|
}
|