testing
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parent
852af156a3
commit
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135
bootstrap.sh
135
bootstrap.sh
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#!/bin/bash
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# Hardcode base URL for your raw repository files.
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# Set the value to your own fork, replacing the `authorized_keys` file with your own
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# i.e., "https://raw.githubusercontent.com/<GH_USER>/<GH_REPO>/<GH_BRANCH>"
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REPO_RAW_URL="https://git.krislamo.org/kris/bootstrap/raw/branch/main"
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AUTH_KEY_FILE="/authorized_keys"
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# Optional debianzfs install script download
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DEBIANZFS="https://git.krislamo.org/kris/debianzfs/raw/branch/main/debianzfs.sh"
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DEBIANZFS_BIN="/usr/local/bin/debianzfs"
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##############################
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######## STOP EDITING ########
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##############################
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# Root required
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if [ $EUID -ne 0 ]; then
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echo "You must run this script as root"
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exit 1
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fi
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# Options
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while getopts ':bceg:h:i:r:suz' OPTION; do
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case "$OPTION" in
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b) BOOT_CYCLE=1;;
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c) CDROM_REMOVE=1;;
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e) ENABLE_SSH=1;;
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g) GATEWAY="$OPTARG";;
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h) HOST="$OPTARG";;
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i) IP="$OPTARG";;
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r) REPO="$OPTARG";;
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s) SSH=1;;
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u) UPDATE=1;;
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z) ZFSINSTALL=1;;
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?)
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usage
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exit 1;;
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esac
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done
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# Allow override but use default repo if not set
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[ -z "$REPO" ] && REPO="$REPO_RAW_URL"
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# Get current date, hostname, create a temporary directory,
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# and set the location to the remote repository
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DATE=$(date '+%Y%m%d')
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TMP_DIR=$(mktemp -d)
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CUR_HOSTNAME=$(hostname)
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GIT_LOC="https://github.com/krislamo/bootstrap.git"
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# Get user input for hostname and IP
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echo "Enter name server's new hostname:"
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read NEW_HOSTNAME
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echo "Enter a static IP address (e.g. 192.168.1.2/24):"
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read STATIC_IP
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if [ ! -z "$STATIC_IP" ]; then
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echo "Enter the gateway IP (default: 192.168.1.1):"
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read GATEWAY_IP
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[ -z "$GATEWAY_IP" ] && GATEWAY_IP="192.168.1.1"
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echo "Gateway set to $GATEWAY_IP"
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fi
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# Remove CD sources
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cp /etc/apt/sources.list /etc/apt/sources.list.$DATE
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sed -i '/deb cdrom/d' /etc/apt/sources.list
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if [ "$CDROM_REMOVE" -eq 1 ]; then
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echo "NOTICE: Backing up /etc/apt/sources.list => /etc/apt/sources.list.$DATE"
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sed -i."$DATE" '/deb cdrom/d' /etc/apt/sources.list
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fi
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# Upgrade software
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apt-get update -y
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if [ "$UPDATE" -eq 1 ]; then
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echo "NOTICE: Upgrading system"
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apt-get update
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apt-get upgrade -y
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# Install git, clone this repo, and navigate to it
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apt-get install git -y
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cd $TMP_DIR
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git clone $GIT_LOC
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cd bootstrap
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fi
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# Install personal SSH keys under root and install the OpenSSH server
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if [ "$SSH" -eq 1 ]; then
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# Does authorized_keys file already exist?
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if [ -f /root/.ssh/authorized_keys ]; then
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echo "ERROR: /root/.ssh/authorized_keys file already exists"
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exit 1
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fi
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echo "NOTICE: Installing root's authorized_keys and the OpenSSH server"
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mkdir -p /root/.ssh/
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cp --update authorized_keys /root/.ssh/authorized_keys
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chmod 700 /root/.ssh/
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wget "${REPO}${AUTH_KEY_FILE}" -O /root/.ssh/authorized_keys
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chmod 644 /root/.ssh/authorized_keys
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apt-get install openssh-server -y
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# If STATIC_IP is set, backup interfaces and configure static IP
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if [ ! -z "$STATIC_IP" ]; then
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cp /etc/network/interfaces /etc/network/interfaces.$DATE
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sed -i "s/dhcp/static/g" /etc/network/interfaces
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if ! grep -q "address" /etc/network/interfaces; then
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echo " address $STATIC_IP" >> /etc/network/interfaces
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echo " gateway $GATEWAY_IP" >> /etc/network/interfaces
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if [ "$ENABLE_SSH" -eq 1 ]; then
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echo "NOTICE: Enabling the OpenSSH server"
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systemctl start ssh
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fi
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fi
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# If IP is set, backup interfaces and configure static IP
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if [ -n "$IP" ]; then
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if [ -z "$GATEWAY" ]; then
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echo "ERROR: IP set without a GATEWAY address. See option -g"
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exit 1
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fi
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echo "NOTICE: Backing up network interfaces file and installing a new static one"
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sed -i."$DATE" "s/dhcp/static/g" /etc/network/interfaces
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if ! grep -q "address" /etc/network/interfaces; then
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echo " address $IP" >> /etc/network/interfaces
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echo " gateway $GATEWAY_IP" >> /etc/network/interfaces
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else
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echo "ERROR: Address already set"
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exit 1
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fi
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fi
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# Download DebianZFS script
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if [ "$ZFSINSTALL" -eq 1 ]; then
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echo "NOTICE: Installing DebianZFS installation script"
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wget "$DEBIANZFS" -O "$DEBIANZFS_BIN"
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chmod u+x "$DEBIANZFS_BIN"
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fi
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# If NEW_HOSTNAME is set, configure new hostname and backup /etc/hosts
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if [ ! -z "$NEW_HOSTNAME" ]; then
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hostnamectl set-hostname $NEW_HOSTNAME
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cp /etc/hosts /etc/hosts.$DATE
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sed -i "s/$CUR_HOSTNAME/$NEW_HOSTNAME/g" /etc/hosts
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read -p "Press [enter] to restart this machine"
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if [ -n "$HOST" ]; then
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hostnamectl set-hostname "$HOST"
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echo "NOTICE: Backing up /etc/hosts and setting new hostname to '$HOST'"
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sed -i."$DATE" "s/$CUR_HOSTNAME/$HOST/g" /etc/hosts
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fi
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# Restart
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if [ "$BOOT_CYCLE" -eq 1 ]; then
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echo "NOTICE: Restarting the machine in 10 seconds..."
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sleep 9
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echo "NOTICE: Restarting!"
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sleep 1
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systemctl reboot
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fi
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