forked from finn/tinyboard
restructure: add setup.sh entry point, move scripts to spoke/ and hub/
This commit is contained in:
Justin Oros
166
setup-network.sh
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166
setup-network.sh
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@@ -0,0 +1,166 @@
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#!/usr/bin/env bash
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set -euo pipefail
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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CYAN='\033[0;36m'
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NC='\033[0m'
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info() { echo -e "${GREEN}[+]${NC} $*"; }
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warn() { echo -e "${YELLOW}[!]${NC} $*"; }
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die() { echo -e "${RED}[ERROR]${NC} $*" >&2; exit 1; }
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header() { echo -e "\n${CYAN}══════════════════════════════════════════${NC}"; echo -e "${CYAN} $*${NC}"; echo -e "${CYAN}══════════════════════════════════════════${NC}"; }
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[ "$(id -u)" -eq 0 ] || die "Run as root"
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header "TinyBoard Network Setup"
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info "Available interfaces:"
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ip -o link show | awk -F': ' 'NR>1 {print " " $2}'
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echo ""
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read -rp "Enter interface name to configure (e.g. wlan0, eth0, end0): " IFACE
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[ -n "$IFACE" ] || die "Interface name cannot be empty"
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ip link show "$IFACE" >/dev/null 2>&1 || die "Interface $IFACE not found"
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IS_WIFI=false
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if [[ "$IFACE" == wl* ]]; then
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IS_WIFI=true
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info "Wireless interface detected."
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else
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info "Wired interface detected — skipping WiFi credential setup."
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fi
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CURRENT_IP=$(ip -o -4 addr show "$IFACE" 2>/dev/null | awk '{print $4}' | head -1)
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CURRENT_GW=$(ip route show default 2>/dev/null | awk '/default/ {print $3}' | head -1)
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echo ""
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info "Current IP: ${CURRENT_IP:-none}"
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info "Current gateway: ${CURRENT_GW:-none}"
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echo ""
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read -rp "Set a static IP for this spoke? [Y/n]: " SET_STATIC
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SET_STATIC="${SET_STATIC:-y}"
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if [[ "${SET_STATIC,,}" != "y" ]]; then
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info "Keeping DHCP. No changes made."
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exit 0
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fi
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header "Static IP Configuration"
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read -rp "Enter static IP with prefix (e.g. 192.168.1.69/24): " STATIC_IP
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[ -n "$STATIC_IP" ] || die "IP address cannot be empty"
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DEFAULT_GW="${CURRENT_GW:-192.168.1.1}"
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read -rp "Gateway [${DEFAULT_GW}]: " GATEWAY
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GATEWAY="${GATEWAY:-$DEFAULT_GW}"
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read -rp "DNS servers (comma-separated) [${GATEWAY},8.8.8.8]: " DNS_INPUT
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DNS_INPUT="${DNS_INPUT:-${GATEWAY},8.8.8.8}"
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DNS_YAML=""
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IFS=',' read -ra DNS_LIST <<< "$DNS_INPUT"
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for DNS in "${DNS_LIST[@]}"; do
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DNS=$(echo "$DNS" | tr -d ' ')
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DNS_YAML="${DNS_YAML} - ${DNS}\n"
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done
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info "Current netplan configs:"
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ls /etc/netplan/ | sed 's/^/ /'
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echo ""
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NETPLAN_FILE=$(ls /etc/netplan/*.yaml 2>/dev/null | head -1)
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read -rp "Netplan file to update [${NETPLAN_FILE}]: " INPUT_FILE
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NETPLAN_FILE="${INPUT_FILE:-$INPUT_FILE}"
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NETPLAN_FILE="${NETPLAN_FILE:-$(ls /etc/netplan/*.yaml 2>/dev/null | head -1)}"
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[ -n "$NETPLAN_FILE" ] || die "No netplan file specified"
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if $IS_WIFI; then
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header "WiFi Credentials"
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CURRENT_SSID=""
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if [ -f "$NETPLAN_FILE" ]; then
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CURRENT_SSID=$(grep -A1 'access-points:' "$NETPLAN_FILE" 2>/dev/null | tail -1 | tr -d ' "' | sed 's/:$//' || true)
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fi
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KEEP_WIFI="n"
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if [ -n "$CURRENT_SSID" ]; then
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warn "Existing WiFi config found for: $CURRENT_SSID"
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read -rp "Keep existing WiFi credentials? [Y/n]: " KEEP_WIFI
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KEEP_WIFI="${KEEP_WIFI:-y}"
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fi
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if [[ "${KEEP_WIFI,,}" != "y" ]]; then
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read -rp "WiFi SSID: " WIFI_SSID
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[ -n "$WIFI_SSID" ] || die "SSID cannot be empty"
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read -rsp "WiFi password: " WIFI_PASS
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echo ""
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[ -n "$WIFI_PASS" ] || die "Password cannot be empty"
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else
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WIFI_SSID="$CURRENT_SSID"
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WIFI_PASS=$(grep -A2 "\"${WIFI_SSID}\"" "$NETPLAN_FILE" 2>/dev/null | grep password | awk -F': ' '{print $2}' | tr -d '"' || true)
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fi
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fi
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header "Writing Netplan Config"
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if [ -f "$NETPLAN_FILE" ]; then
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cp "$NETPLAN_FILE" "${NETPLAN_FILE}.bak"
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info "Backup saved to ${NETPLAN_FILE}.bak"
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fi
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if $IS_WIFI; then
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cat > "$NETPLAN_FILE" <<NETEOF
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network:
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version: 2
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wifis:
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${IFACE}:
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dhcp4: no
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addresses:
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- ${STATIC_IP}
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routes:
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- to: default
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via: ${GATEWAY}
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nameservers:
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addresses:
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$(printf '%b' "$DNS_YAML") access-points:
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"${WIFI_SSID}":
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password: "${WIFI_PASS}"
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NETEOF
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else
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cat > "$NETPLAN_FILE" <<NETEOF
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network:
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version: 2
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ethernets:
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${IFACE}:
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dhcp4: no
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addresses:
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- ${STATIC_IP}
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routes:
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- to: default
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via: ${GATEWAY}
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nameservers:
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addresses:
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$(printf '%b' "$DNS_YAML")NETEOF
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fi
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info "Netplan config written to $NETPLAN_FILE"
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header "Applying Configuration"
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warn "Testing netplan config..."
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if netplan try --timeout 10 2>/dev/null; then
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info "Netplan config applied successfully."
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else
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warn "netplan try timed out or failed — applying anyway..."
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netplan apply
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fi
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STATIC_ADDR="${STATIC_IP%%/*}"
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echo ""
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echo -e "${YELLOW}══════════════════════════════════════════${NC}"
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echo -e "${YELLOW} Network reconfigured.${NC}"
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echo -e "${YELLOW} If you are connected via SSH, your session${NC}"
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echo -e "${YELLOW} may drop. Reconnect to: ${STATIC_ADDR}${NC}"
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echo -e "${YELLOW} Then run: sudo ./setup-spoke.sh${NC}"
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echo -e "${YELLOW}══════════════════════════════════════════${NC}"
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echo ""
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