133 lines
3.6 KiB
Bash
133 lines
3.6 KiB
Bash
#!/usr/bin/env bash
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if [ "$VERBOSE" == "yes" ]; then set -x; fi
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YW=$(echo "\033[33m")
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RD=$(echo "\033[01;31m")
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BL=$(echo "\033[36m")
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GN=$(echo "\033[1;92m")
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CL=$(echo "\033[m")
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RETRY_NUM=10
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RETRY_EVERY=3
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NUM=$RETRY_NUM
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CM="${GN}✓${CL}"
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CROSS="${RD}✗${CL}"
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BFR="\\r\\033[K"
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HOLD="-"
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set -o errexit
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set -o errtrace
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set -o nounset
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set -o pipefail
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shopt -s expand_aliases
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alias die='EXIT=$? LINE=$LINENO error_exit'
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trap die ERR
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function error_exit() {
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trap - ERR
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local reason="Unknown failure occurred."
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local msg="${1:-$reason}"
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local flag="${RD}‼ ERROR ${CL}$EXIT@$LINE"
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echo -e "$flag $msg" 1>&2
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exit $EXIT
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}
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function 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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function 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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function msg_error() {
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local msg="$1"
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echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
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}
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msg_info "Setting up Container OS"
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sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
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locale-gen >/dev/null
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while [ "$(hostname -I)" = "" ]; do
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echo 1>&2 -en "${CROSS}${RD} No Network! "
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sleep $RETRY_EVERY
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((NUM--))
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if [ $NUM -eq 0 ]; then
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echo 1>&2 -e "${CROSS}${RD} No Network After $RETRY_NUM Tries${CL}"
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exit 1
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fi
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done
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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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set +e
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alias die=''
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if nc -zw1 8.8.8.8 443; 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" || $prompt == "Y" || $prompt == "yes" || $prompt == "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=$(nslookup "github.com" | awk -F':' '/^Address: / { matched = 1 } matched { print $2}' | xargs)
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if [[ -z "$RESOLVEDIP" ]]; then msg_error "DNS Lookup Failure"; else msg_ok "DNS Resolved github.com to $RESOLVEDIP"; fi
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alias die='EXIT=$? LINE=$LINENO error_exit'
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set -e
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msg_info "Updating Container OS"
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apt-get update &>/dev/null
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apt-get -y upgrade &>/dev/null
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msg_ok "Updated Container OS"
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msg_info "Installing Dependencies"
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apt-get install -y curl &>/dev/null
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apt-get install -y sudo &>/dev/null
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apt-get install -y git &>/dev/null
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msg_ok "Installed Dependencies"
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msg_info "Installing k0s Kubernetes"
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sh <(curl -sSLf https://get.k0s.sh) &>/dev/null
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k0s install controller --single &>/dev/null
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k0s start &>/dev/null
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mkdir -p /etc/k0s
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k0s config create > /etc/k0s/k0s.yaml
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msg_ok "Installed k0s Kubernetes"
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read -r -p "Would you like to add Helm Package Manager? <y/N> " prompt
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if [[ $prompt == "y" || $prompt == "Y" || $prompt == "yes" || $prompt == "Yes" ]]; then
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HELM="Y"
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else
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HELM="N"
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fi
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if [[ $HELM == "Y" ]]; then
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msg_info "Installing Helm"
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curl -sSL https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash &>/dev/null
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msg_ok "Installed Helm"
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fi
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PASS=$(grep -w "root" /etc/shadow | cut -b6)
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if [[ $PASS != $ ]]; then
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msg_info "Customizing Container"
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chmod -x /etc/update-motd.d/*
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touch ~/.hushlogin
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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 $GETTY_OVERRIDE) | sed 's/\.d//')
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msg_ok "Customized Container"
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fi
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if [[ "${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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msg_info "Cleaning up"
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apt-get autoremove >/dev/null
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apt-get autoclean >/dev/null
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msg_ok "Cleaned"
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