148 lines
4.6 KiB
Plaintext
148 lines
4.6 KiB
Plaintext
# This function sets color variables for formatting output in the terminal
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color() {
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YW=$(echo "\033[33m")
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BL=$(echo "\033[36m")
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RD=$(echo "\033[01;31m")
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BGN=$(echo "\033[4;92m")
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GN=$(echo "\033[1;92m")
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DGN=$(echo "\033[32m")
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CL=$(echo "\033[m")
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RETRY_NUM=10
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RETRY_EVERY=3
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CM="${GN}✓${CL}"
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CROSS="${RD}✗${CL}"
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BFR="\\r\\033[K"
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HOLD="-"
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}
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# This function enables IPv6 if it's not disabled and sets verbose mode if the global variable is set to "yes"
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verb_ip6() {
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if [ "$VERBOSE" = "yes" ]; then
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set -x
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STD=""
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else STD="silent"; fi
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silent() { "$@" >/dev/null 2>&1; }
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if [ "$DISABLEIPV6" == "yes" ]; then
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echo "net.ipv6.conf.all.disable_ipv6 = 1" >>/etc/sysctl.conf
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$STD sysctl -p
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fi
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}
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# This function sets error handling options and defines the error_handler function to handle errors
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catch_errors() {
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set -Eeuo pipefail
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trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
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}
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# This function handles errors
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error_handler() {
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local exit_code="$?"
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local line_number="$1"
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local command="$2"
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local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}"
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echo -e "\n$error_message"
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if [[ "$line_number" -eq 24 ]]; then
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echo -e "The silent function has suppressed the error, run the script with verbose mode enabled, which will provide more detailed output.\n"
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fi
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}
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# This function prints an informational message
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msg_info() {
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local msg="$1"
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echo -ne " ${HOLD} ${YW}${msg}..."
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}
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# This function prints a success message
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msg_ok() {
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local msg="$1"
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echo -e "${BFR} ${CM} ${GN}${msg}${CL}"
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}
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# This function prints an error message
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msg_error() {
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local msg="$1"
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echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
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}
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# This function sets up the Container OS by generating the locale, setting the timezone, and checking the network connection
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setting_up_container() {
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msg_info "Setting up Container OS"
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sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
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locale-gen >/dev/null
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echo $tz >/etc/timezone
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ln -sf /usr/share/zoneinfo/$tz /etc/localtime
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for ((i = RETRY_NUM; i > 0; i--)); do
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if [ "$(hostname -I)" != "" ]; then
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break
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fi
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echo 1>&2 -en "${CROSS}${RD} No Network! "
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sleep $RETRY_EVERY
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done
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if [ "$(hostname -I)" = "" ]; then
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echo 1>&2 -e "\n${CROSS}${RD} No Network After $RETRY_NUM Tries${CL}"
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echo -e " 🖧 Check Network Settings"
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exit 1
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fi
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msg_ok "Set up Container OS"
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msg_ok "Network Connected: ${BL}$(hostname -I)"
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}
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# This function checks the network connection by pinging a known IP address and prompts the user to continue if the internet is not connected
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network_check() {
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set +e
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trap - ERR
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if ping -c 1 -W 1 1.1.1.1 &>/dev/null; then msg_ok "Internet Connected"; else
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msg_error "Internet NOT Connected"
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read -r -p "Would you like to continue anyway? <y/N> " prompt
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if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
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echo -e " ⚠️ ${RD}Expect Issues Without Internet${CL}"
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else
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echo -e " 🖧 Check Network Settings"
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exit 1
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fi
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fi
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RESOLVEDIP=$(getent hosts github.com | awk '{ print $1 }')
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if [[ -z "$RESOLVEDIP" ]]; then msg_error "DNS Lookup Failure"; else msg_ok "DNS Resolved github.com to ${BL}$RESOLVEDIP${CL}"; fi
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set -e
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trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
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}
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# This function updates the Container OS by running apt-get update and upgrade
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update_os() {
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msg_info "Updating Container OS"
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$STD apt-get update
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$STD apt-get -y upgrade
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msg_ok "Updated Container OS"
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}
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# This function modifies the message of the day (motd) and SSH settings
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motd_ssh() {
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echo "export TERM='xterm-256color'" >>/root/.bashrc
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echo -e "$APPLICATION LXC provided by https://tteck.github.io/Proxmox/\n" >/etc/motd
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chmod -x /etc/update-motd.d/*
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if [[ "${SSH_ROOT}" == "yes" ]]; then
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sed -i "s/#PermitRootLogin prohibit-password/PermitRootLogin yes/g" /etc/ssh/sshd_config
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systemctl restart sshd
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fi
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if [[ "$PCT_OSVERSION" == "12" ]]; then
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$STD systemctl disable systemd-networkd-wait-online.service
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fi
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}
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# This function customizes the container by modifying the getty service and enabling auto-login for the root user
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customize() {
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if [[ "$PASSWORD" == "" ]]; then
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msg_info "Customizing Container"
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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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msg_ok "Customized Container"
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fi
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}
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