2022-01-19 01:34:53 +02:00
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#!/usr/bin/env bash
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# Setup script environment
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set -o errexit #Exit immediately if a pipeline returns a non-zero status
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set -o errtrace #Trap ERR from shell functions, command substitutions, and commands from subshell
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set -o nounset #Treat unset variables as an error
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set -o pipefail #Pipe will exit with last non-zero status if applicable
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shopt -s expand_aliases
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alias die='EXIT=$? LINE=$LINENO error_exit'
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trap die ERR
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trap 'die "Script interrupted."' INT
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function error_exit() {
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trap - ERR
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local DEFAULT='Unknown failure occured.'
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local REASON="\e[97m${1:-$DEFAULT}\e[39m"
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local FLAG="\e[91m[ERROR:LXC] \e[93m$EXIT@$LINE"
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msg "$FLAG $REASON"
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exit $EXIT
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}
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function msg() {
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local TEXT="$1"
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echo -e "$TEXT"
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}
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# Prepare container OS
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msg "Setting up container OS..."
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sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
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locale-gen >/dev/null
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apt-get -y purge openssh-{client,server} >/dev/null
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apt-get autoremove >/dev/null
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# Update container OS
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msg "Updating container OS..."
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apt update &>/dev/null
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apt-get -qqy upgrade &>/dev/null
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# Install prerequisites
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msg "Installing Prerequisites..."
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apt-get -qqy install \
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curl \
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sudo &>/dev/null
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# Installing MariaDB
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msg "Installing MariaDB..."
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2022-01-21 22:45:06 +02:00
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curl -LsS https://r.mariadb.com/downloads/mariadb_repo_setup | sudo bash &>/dev/null
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2022-01-21 22:53:43 +02:00
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apt-get update >/dev/null
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apt-get install -y mariadb-server &>/dev/null
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2022-01-19 01:34:53 +02:00
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# Customize container
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msg "Customizing container..."
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rm /etc/motd # Remove message of the day after login
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rm /etc/update-motd.d/10-uname # Remove kernel information after login
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touch ~/.hushlogin # Remove 'Last login: ' and mail notification after login
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GETTY_OVERRIDE="/etc/systemd/system/container-getty@1.service.d/override.conf"
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mkdir -p $(dirname $GETTY_OVERRIDE)
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cat << EOF > $GETTY_OVERRIDE
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[Service]
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ExecStart=
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ExecStart=-/sbin/agetty --autologin root --noclear --keep-baud tty%I 115200,38400,9600 \$TERM
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EOF
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systemctl daemon-reload
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systemctl restart $(basename $(dirname $GETTY_OVERRIDE) | sed 's/\.d//')
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# Cleanup container
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msg "Cleanup..."
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rm -rf /mariadb_setup.sh /var/{cache,log}/* /var/lib/apt/lists/*
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