734 lines
32 KiB
Bash
734 lines
32 KiB
Bash
#!/usr/bin/env bash
|
||
# =============================================================================
|
||
# NetBird External Relay Server Setup Script
|
||
# Interactively generates relay.env and docker-compose.yml for one or more
|
||
# relay servers. Run this script ON each relay server, or use --dry-run to
|
||
# preview the generated files locally.
|
||
# =============================================================================
|
||
|
||
set -euo pipefail
|
||
|
||
# ── Colours ──────────────────────────────────────────────────────────────────
|
||
RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
|
||
CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
|
||
|
||
info() { echo -e "${CYAN}[INFO]${RESET} $*"; }
|
||
success() { echo -e "${GREEN}[OK]${RESET} $*"; }
|
||
warn() { echo -e "${YELLOW}[WARN]${RESET} $*"; }
|
||
error() { echo -e "${RED}[ERROR]${RESET} $*" >&2; }
|
||
header() { echo -e "\n${BOLD}${CYAN}══ $* ══${RESET}"; }
|
||
|
||
# ── Helpers ───────────────────────────────────────────────────────────────────
|
||
ask() {
|
||
# ask <var_name> <prompt> [default]
|
||
local var="$1" prompt="$2" default="${3:-}"
|
||
local display_default=""
|
||
[[ -n "$default" ]] && display_default=" [${default}]"
|
||
while true; do
|
||
read -rp "$(echo -e "${BOLD}${prompt}${display_default}: ${RESET}")" value
|
||
value="${value:-$default}"
|
||
if [[ -n "$value" ]]; then
|
||
printf -v "$var" '%s' "$value"
|
||
return
|
||
fi
|
||
warn "This field is required."
|
||
done
|
||
}
|
||
|
||
ask_yn() {
|
||
# ask_yn <prompt> <default: y|n> → returns 0=yes 1=no
|
||
local prompt="$1" default="${2:-y}"
|
||
local opts="[Y/n]"; [[ "$default" == "n" ]] && opts="[y/N]"
|
||
read -rp "$(echo -e "${BOLD}${prompt} ${opts}: ${RESET}")" reply
|
||
reply="${reply:-$default}"
|
||
[[ "${reply,,}" == "y" ]]
|
||
}
|
||
|
||
ask_secret() {
|
||
local var="$1" prompt="$2"
|
||
while true; do
|
||
read -rsp "$(echo -e "${BOLD}${prompt}: ${RESET}")" value; echo
|
||
if [[ -n "$value" ]]; then
|
||
printf -v "$var" '%s' "$value"
|
||
return
|
||
fi
|
||
warn "Secret cannot be empty."
|
||
done
|
||
}
|
||
|
||
parse_existing_env() {
|
||
# parse_existing_env <relay.env path>
|
||
# Sets EX_* variables from an existing relay.env file.
|
||
local envfile="$1"
|
||
[[ -f "$envfile" ]] || return 1
|
||
|
||
_get() { grep -m1 "^${1}=" "$envfile" 2>/dev/null | cut -d= -f2- || true; }
|
||
|
||
EX_LOG_LEVEL="$(_get NB_LOG_LEVEL)"
|
||
EX_AUTH_SECRET="$(_get NB_AUTH_SECRET)"
|
||
EX_LE_EMAIL="$(_get NB_LETSENCRYPT_EMAIL)"
|
||
EX_CERT_FILE="$(_get NB_TLS_CERT_FILE)"
|
||
EX_KEY_FILE="$(_get NB_TLS_KEY_FILE)"
|
||
EX_ENABLE_STUN="$(_get NB_ENABLE_STUN)"
|
||
EX_STUN_PORTS="$(_get NB_STUN_PORTS)"
|
||
|
||
# Parse domain and port from NB_EXPOSED_ADDRESS=rels://domain:port
|
||
local exposed; exposed="$(_get NB_EXPOSED_ADDRESS)"
|
||
EX_DOMAIN="${exposed#rels://}"; EX_DOMAIN="${EX_DOMAIN%%:*}"
|
||
EX_LISTEN_PORT="${exposed##*:}"
|
||
|
||
# Detect TLS mode
|
||
local le_domains; le_domains="$(_get NB_LETSENCRYPT_DOMAINS)"
|
||
if [[ -n "$le_domains" ]]; then
|
||
EX_TLS_MODE="1"
|
||
elif [[ -n "$EX_CERT_FILE" ]]; then
|
||
EX_TLS_MODE="2" # could be self-signed, but treat as existing cert
|
||
else
|
||
EX_TLS_MODE="1" # fallback
|
||
fi
|
||
}
|
||
|
||
if command -v openssl &>/dev/null; then
|
||
openssl rand -base64 32
|
||
else
|
||
head -c 32 /dev/urandom | base64
|
||
fi
|
||
}
|
||
|
||
validate_domain() {
|
||
# Very basic domain sanity check
|
||
[[ "$1" =~ ^[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)*\.[a-zA-Z]{2,}$ ]]
|
||
}
|
||
|
||
# ── Arg parsing ───────────────────────────────────────────────────────────────
|
||
DRY_RUN=false
|
||
OUTPUT_DIR="."
|
||
for arg in "$@"; do
|
||
case "$arg" in
|
||
--dry-run) DRY_RUN=true ;;
|
||
--output=*) OUTPUT_DIR="${arg#--output=}" ;;
|
||
-h|--help)
|
||
echo "Usage: $0 [--dry-run] [--output=<dir>]"
|
||
echo " --dry-run Print generated files to stdout instead of writing them"
|
||
echo " --output=DIR Write files to DIR instead of current directory"
|
||
exit 0 ;;
|
||
esac
|
||
done
|
||
|
||
mkdir -p "$OUTPUT_DIR"
|
||
|
||
# ── Banner ────────────────────────────────────────────────────────────────────
|
||
echo -e "${BOLD}${CYAN}"
|
||
echo "╔══════════════════════════════════════════════════════════╗"
|
||
echo "║ NetBird External Relay Server Setup Wizard ║"
|
||
echo "╚══════════════════════════════════════════════════════════╝${RESET}"
|
||
echo ""
|
||
echo "This script generates relay.env and docker-compose.yml"
|
||
echo "for one or more NetBird relay servers."
|
||
$DRY_RUN && warn "DRY-RUN mode: files will be printed, not written."
|
||
echo ""
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 1 – Auth secret
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
header "Step 1 · Authentication Secret"
|
||
echo "All relay servers AND your main NetBird server must share the same secret."
|
||
echo ""
|
||
|
||
# Try to pre-read an existing secret from /opt/netbird-relay/relay.env
|
||
_PREREAD_SECRET=""
|
||
if [[ -f "/opt/netbird-relay/relay.env" ]]; then
|
||
_PREREAD_SECRET="$(grep -m1 '^NB_AUTH_SECRET=' /opt/netbird-relay/relay.env 2>/dev/null | cut -d= -f2- || true)"
|
||
fi
|
||
|
||
if [[ -n "$_PREREAD_SECRET" ]]; then
|
||
info "Found existing secret in /opt/netbird-relay/relay.env"
|
||
ask AUTH_SECRET "Keep existing secret or enter a new one" "$_PREREAD_SECRET"
|
||
success "Using secret."
|
||
elif ask_yn "Generate a new random secret automatically?" "y"; then
|
||
AUTH_SECRET="$(generate_secret)"
|
||
success "Generated secret: ${BOLD}${AUTH_SECRET}${RESET}"
|
||
warn "Save this — you'll need it for every relay and your main server config."
|
||
else
|
||
ask AUTH_SECRET "Paste your existing shared secret" ""
|
||
success "Using supplied secret."
|
||
fi
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 2 – Number of relay servers
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
header "Step 2 · How many relay servers?"
|
||
ask RELAY_COUNT "Number of relay servers to configure" "1"
|
||
if ! [[ "$RELAY_COUNT" =~ ^[1-9][0-9]*$ ]]; then
|
||
error "Please enter a positive integer."; exit 1
|
||
fi
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 3 – Per-relay configuration
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
declare -a RELAY_DOMAINS=()
|
||
declare -a RELAY_DIRS=()
|
||
declare -a RELAY_LISTEN_PORTS=()
|
||
declare -a RELAY_STUN_PORTS_LIST=()
|
||
declare -a RELAY_TLS_MODES=()
|
||
declare -a RELAY_ENABLE_STUN=()
|
||
|
||
for (( i=1; i<=RELAY_COUNT; i++ )); do
|
||
|
||
header "Step 3.$i · Relay Server #${i}"
|
||
|
||
# ── Output directory (ask first so we can read existing config) ───────────
|
||
ask RELAY_DIR " Output directory for this relay's files" "/opt/netbird-relay"
|
||
|
||
# ── Load existing config as defaults if relay.env is present ─────────────
|
||
EX_DOMAIN=""; EX_LISTEN_PORT="443"; EX_LOG_LEVEL="info"
|
||
EX_AUTH_SECRET=""; EX_LE_EMAIL=""; EX_CERT_FILE=""; EX_KEY_FILE=""
|
||
EX_ENABLE_STUN="true"; EX_STUN_PORTS="3478"; EX_TLS_MODE="1"
|
||
_EXISTING_ENV="${RELAY_DIR}/relay.env"
|
||
if parse_existing_env "$_EXISTING_ENV"; then
|
||
info " Found existing config in ${_EXISTING_ENV} — using as defaults."
|
||
fi
|
||
|
||
# ── Domain ────────────────────────────────────────────────────────────────
|
||
while true; do
|
||
ask DOMAIN " Domain name (e.g. relay-us.example.com)" "${EX_DOMAIN}"
|
||
if validate_domain "$DOMAIN"; then break
|
||
else warn " That doesn't look like a valid domain. Try again."; fi
|
||
done
|
||
RELAY_DOMAINS+=("$DOMAIN")
|
||
|
||
# ── Listen & exposed ports ────────────────────────────────────────────────
|
||
ask LISTEN_PORT " HTTPS listen port" "${EX_LISTEN_PORT:-443}"
|
||
ask LOG_LEVEL " Log level (debug/info/warn/error)" "${EX_LOG_LEVEL:-info}"
|
||
|
||
# ── STUN ──────────────────────────────────────────────────────────────────
|
||
echo ""
|
||
_STUN_DEFAULT="y"; [[ "${EX_ENABLE_STUN}" == "false" ]] && _STUN_DEFAULT="n"
|
||
if ask_yn " Enable embedded STUN server?" "$_STUN_DEFAULT"; then
|
||
ENABLE_STUN=true
|
||
ask STUN_PORTS " STUN port(s) — comma-separated for multiple (e.g. 3478,3479)" "${EX_STUN_PORTS:-3478}"
|
||
else
|
||
ENABLE_STUN=false
|
||
STUN_PORTS=""
|
||
fi
|
||
|
||
# ── TLS mode ──────────────────────────────────────────────────────────────
|
||
echo ""
|
||
echo " TLS mode:"
|
||
echo " 1) Let's Encrypt (automatic — server needs port 80/tcp open)"
|
||
echo " 2) Existing certificates (wildcard / own CA)"
|
||
echo " 3) Self-signed certificate (generated by this script)"
|
||
ask TLS_MODE " Choose [1/2/3]" "${EX_TLS_MODE:-1}"
|
||
|
||
if [[ "$TLS_MODE" == "1" ]]; then
|
||
ask LE_EMAIL " Let's Encrypt email" "${EX_LE_EMAIL}"
|
||
LE_DATA_DIR="/data/letsencrypt"
|
||
CERT_HOST_PATH=""; CERT_FILE=""; KEY_FILE=""
|
||
elif [[ "$TLS_MODE" == "2" ]]; then
|
||
# Derive existing host path from cert file path stored in env (best-effort)
|
||
_EX_CERT_HOST=""
|
||
[[ -n "$EX_CERT_FILE" ]] && _EX_CERT_HOST="$(
|
||
grep -m1 'volumes:' -A5 "${RELAY_DIR}/docker-compose.yml" 2>/dev/null \
|
||
| grep -m1 ':/certs:ro\|:/certs ' \
|
||
| awk -F: '{print $1}' | sed 's/^ *- *//' || true
|
||
)"
|
||
ask CERT_HOST_PATH " Host path to certs directory" "${_EX_CERT_HOST:-/opt/1panel/www/sites/${DOMAIN}/ssl}"
|
||
ask CERT_FILE " Cert file path inside container" "${EX_CERT_FILE:-/certs/fullchain.pem}"
|
||
ask KEY_FILE " Key file path inside container" "${EX_KEY_FILE:-/certs/privkey.pem}"
|
||
LE_EMAIL=""; LE_DATA_DIR=""
|
||
else
|
||
echo ""
|
||
echo " ── Self-signed certificate details ──"
|
||
|
||
ask SS_CN " Common Name (CN)" "${DOMAIN}"
|
||
ask SS_O " Organization (O)" ""
|
||
ask SS_OU " Organizational Unit (OU)" ""
|
||
ask SS_C " Country (C, 2-letter ISO)" ""
|
||
ask SS_ST " State / Province (ST)" ""
|
||
ask SS_L " Locality / City (L)" ""
|
||
|
||
SS_SANS="DNS:${DOMAIN}"
|
||
echo ""
|
||
echo " Subject Alternative Names (SANs):"
|
||
echo " DNS:${DOMAIN} is included automatically."
|
||
echo " Add extra SANs one by one (IP:x.x.x.x or DNS:other.example.com)."
|
||
echo " Press Enter on an empty line when done."
|
||
while true; do
|
||
read -rp "$(echo -e "${BOLD} Extra SAN (or Enter to finish): ${RESET}")" _san
|
||
[[ -z "$_san" ]] && break
|
||
SS_SANS+=",${_san}"
|
||
done
|
||
|
||
ask SS_DAYS " Certificate validity (days)" "3650"
|
||
|
||
echo ""
|
||
echo " Key type:"
|
||
echo " 1) RSA"
|
||
echo " 2) ECC (ECDSA)"
|
||
ask SS_KEY_TYPE " Choose [1/2]" "1"
|
||
|
||
if [[ "$SS_KEY_TYPE" == "1" ]]; then
|
||
echo " RSA key size:"
|
||
echo " 1) 2048 bit"
|
||
echo " 2) 4096 bit"
|
||
ask SS_KEY_SIZE " Choose [1/2]" "2"
|
||
[[ "$SS_KEY_SIZE" == "1" ]] && SS_NEWKEY="rsa:2048" || SS_NEWKEY="rsa:4096"
|
||
else
|
||
echo " ECC curve:"
|
||
echo " 1) P-256 (prime256v1)"
|
||
echo " 2) P-384 (secp384r1)"
|
||
echo " 3) P-521 (secp521r1)"
|
||
ask SS_CURVE " Choose [1/2/3]" "1"
|
||
case "$SS_CURVE" in
|
||
1) SS_NEWKEY="ec" ; SS_PKEYOPT="ec_paramgen_curve:P-256" ;;
|
||
2) SS_NEWKEY="ec" ; SS_PKEYOPT="ec_paramgen_curve:P-384" ;;
|
||
3) SS_NEWKEY="ec" ; SS_PKEYOPT="ec_paramgen_curve:P-521" ;;
|
||
esac
|
||
fi
|
||
|
||
SS_SUBJ=""
|
||
[[ -n "$SS_C" ]] && SS_SUBJ+="/C=${SS_C}"
|
||
[[ -n "$SS_ST" ]] && SS_SUBJ+="/ST=${SS_ST}"
|
||
[[ -n "$SS_L" ]] && SS_SUBJ+="/L=${SS_L}"
|
||
[[ -n "$SS_O" ]] && SS_SUBJ+="/O=${SS_O}"
|
||
[[ -n "$SS_OU" ]] && SS_SUBJ+="/OU=${SS_OU}"
|
||
SS_SUBJ+="/CN=${SS_CN}"
|
||
|
||
CERT_HOST_PATH=""
|
||
CERT_FILE="/certs/fullchain.pem"
|
||
KEY_FILE="/certs/privkey.pem"
|
||
LE_EMAIL=""; LE_DATA_DIR=""
|
||
fi
|
||
# For self-signed mode, certs live inside the relay dir
|
||
[[ "$TLS_MODE" == "3" ]] && CERT_HOST_PATH="${RELAY_DIR}/certs"
|
||
RELAY_DIRS+=("$RELAY_DIR")
|
||
RELAY_LISTEN_PORTS+=("$LISTEN_PORT")
|
||
RELAY_STUN_PORTS_LIST+=("$STUN_PORTS")
|
||
RELAY_TLS_MODES+=("$TLS_MODE")
|
||
RELAY_ENABLE_STUN+=("$ENABLE_STUN")
|
||
|
||
# ── Build relay.env ───────────────────────────────────────────────────────
|
||
ENV_FILE="${RELAY_DIR}/relay.env"
|
||
COMPOSE_FILE="${RELAY_DIR}/docker-compose.yml"
|
||
|
||
ENV_CONTENT="# NetBird Relay — ${DOMAIN}
|
||
# Generated by setup-relay.sh on $(date -u '+%Y-%m-%dT%H:%M:%SZ')
|
||
# ---------------------------------------------------------------
|
||
|
||
NB_LOG_LEVEL=${LOG_LEVEL}
|
||
NB_LISTEN_ADDRESS=:${LISTEN_PORT}
|
||
NB_EXPOSED_ADDRESS=rels://${DOMAIN}:${LISTEN_PORT}
|
||
NB_AUTH_SECRET=${AUTH_SECRET}
|
||
"
|
||
|
||
if [[ "$TLS_MODE" == "1" ]]; then
|
||
ENV_CONTENT+="
|
||
# TLS — Let's Encrypt (automatic certificate provisioning)
|
||
NB_LETSENCRYPT_DOMAINS=${DOMAIN}
|
||
NB_LETSENCRYPT_EMAIL=${LE_EMAIL}
|
||
NB_LETSENCRYPT_DATA_DIR=${LE_DATA_DIR}
|
||
"
|
||
else
|
||
ENV_CONTENT+="
|
||
# TLS — $([ "$TLS_MODE" == "3" ] && echo "Self-signed certificate" || echo "Existing certificates")
|
||
NB_TLS_CERT_FILE=${CERT_FILE}
|
||
NB_TLS_KEY_FILE=${KEY_FILE}
|
||
"
|
||
fi
|
||
|
||
if $ENABLE_STUN; then
|
||
ENV_CONTENT+="
|
||
# Embedded STUN
|
||
NB_ENABLE_STUN=true
|
||
NB_STUN_PORTS=${STUN_PORTS}
|
||
"
|
||
else
|
||
ENV_CONTENT+="
|
||
# Embedded STUN disabled
|
||
NB_ENABLE_STUN=false
|
||
"
|
||
fi
|
||
|
||
# ── Build STUN port mappings ───────────────────────────────────────────────
|
||
STUN_PORT_LINES=""
|
||
if $ENABLE_STUN && [[ -n "$STUN_PORTS" ]]; then
|
||
IFS=',' read -ra SPORT_ARRAY <<< "$STUN_PORTS"
|
||
for SP in "${SPORT_ARRAY[@]}"; do
|
||
SP="${SP// /}"
|
||
STUN_PORT_LINES+=" - '${SP}:${SP}/udp'"$'\n'
|
||
done
|
||
fi
|
||
|
||
# ── Build volume section ───────────────────────────────────────────────────
|
||
if [[ "$TLS_MODE" == "1" ]]; then
|
||
VOLUME_LINES=" - relay_data:/data"
|
||
else
|
||
VOLUME_LINES=" - ${CERT_HOST_PATH}:$(dirname "${CERT_FILE}"):ro
|
||
- relay_data:/data"
|
||
fi
|
||
|
||
# ── Build docker-compose.yml ──────────────────────────────────────────────
|
||
if [[ "$TLS_MODE" == "1" ]]; then
|
||
LE_PORT_LINE=" - '80:80'"$'\n'
|
||
else
|
||
LE_PORT_LINE=""
|
||
fi
|
||
|
||
COMPOSE_CONTENT="# NetBird Relay — ${DOMAIN}
|
||
# Generated by setup-relay.sh on $(date -u '+%Y-%m-%dT%H:%M:%SZ')
|
||
# ---------------------------------------------------------------
|
||
services:
|
||
relay:
|
||
image: netbirdio/relay:latest
|
||
container_name: netbird-relay
|
||
restart: unless-stopped
|
||
ports:
|
||
- '${LISTEN_PORT}:${LISTEN_PORT}'
|
||
${LE_PORT_LINE}${STUN_PORT_LINES} env_file:
|
||
- relay.env
|
||
volumes:
|
||
${VOLUME_LINES}
|
||
logging:
|
||
driver: \"json-file\"
|
||
options:
|
||
max-size: \"500m\"
|
||
max-file: \"2\"
|
||
|
||
volumes:
|
||
relay_data:
|
||
"
|
||
|
||
# ── Write or print ────────────────────────────────────────────────────────
|
||
if $DRY_RUN; then
|
||
echo ""
|
||
echo -e "${BOLD}▶ ${ENV_FILE}${RESET}"
|
||
echo "────────────────────────────────────────"
|
||
echo "$ENV_CONTENT"
|
||
echo ""
|
||
echo -e "${BOLD}▶ ${COMPOSE_FILE}${RESET}"
|
||
echo "────────────────────────────────────────"
|
||
echo "$COMPOSE_CONTENT"
|
||
if [[ "$TLS_MODE" == "3" ]]; then
|
||
echo ""
|
||
echo -e "${BOLD}▶ Self-signed cert (would run):${RESET}"
|
||
echo "────────────────────────────────────────"
|
||
echo "mkdir -p ${CERT_HOST_PATH}"
|
||
if [[ "$SS_KEY_TYPE" == "1" ]]; then
|
||
echo "openssl req -x509 -newkey ${SS_NEWKEY} -sha256 -days ${SS_DAYS} -nodes \\"
|
||
else
|
||
echo "openssl req -x509 -newkey ${SS_NEWKEY} -pkeyopt ${SS_PKEYOPT} -sha256 -days ${SS_DAYS} -nodes \\"
|
||
fi
|
||
echo " -keyout ${CERT_HOST_PATH}/privkey.pem \\"
|
||
echo " -out ${CERT_HOST_PATH}/fullchain.pem \\"
|
||
echo " -subj \"${SS_SUBJ}\" \\"
|
||
echo " -addext \"subjectAltName=${SS_SANS}\""
|
||
fi
|
||
else
|
||
mkdir -p "$RELAY_DIR"
|
||
printf '%s' "$ENV_CONTENT" > "$ENV_FILE"
|
||
printf '%s' "$COMPOSE_CONTENT" > "$COMPOSE_FILE"
|
||
chmod 600 "$ENV_FILE"
|
||
success " Written: ${ENV_FILE}"
|
||
success " Written: ${COMPOSE_FILE}"
|
||
|
||
if [[ "$TLS_MODE" == "3" ]]; then
|
||
if ! command -v openssl &>/dev/null; then
|
||
error " openssl not found — cannot generate self-signed certificate."
|
||
error " Install openssl and re-run, or run the following manually:"
|
||
if [[ "$SS_KEY_TYPE" == "1" ]]; then
|
||
error " openssl req -x509 -newkey ${SS_NEWKEY} -sha256 -days ${SS_DAYS} -nodes \\"
|
||
else
|
||
error " openssl req -x509 -newkey ${SS_NEWKEY} -pkeyopt ${SS_PKEYOPT} -sha256 -days ${SS_DAYS} -nodes \\"
|
||
fi
|
||
error " -keyout ${CERT_HOST_PATH}/privkey.pem \\"
|
||
error " -out ${CERT_HOST_PATH}/fullchain.pem \\"
|
||
error " -subj \"${SS_SUBJ}\" \\"
|
||
error " -addext \"subjectAltName=${SS_SANS}\""
|
||
else
|
||
info " Generating self-signed certificate ..."
|
||
mkdir -p "${CERT_HOST_PATH}"
|
||
if [[ "$SS_KEY_TYPE" == "1" ]]; then
|
||
openssl req -x509 \
|
||
-newkey "${SS_NEWKEY}" \
|
||
-sha256 -days "${SS_DAYS}" -nodes \
|
||
-keyout "${CERT_HOST_PATH}/privkey.pem" \
|
||
-out "${CERT_HOST_PATH}/fullchain.pem" \
|
||
-subj "${SS_SUBJ}" \
|
||
-addext "subjectAltName=${SS_SANS}" \
|
||
2>/dev/null
|
||
else
|
||
openssl req -x509 \
|
||
-newkey "${SS_NEWKEY}" -pkeyopt "${SS_PKEYOPT}" \
|
||
-sha256 -days "${SS_DAYS}" -nodes \
|
||
-keyout "${CERT_HOST_PATH}/privkey.pem" \
|
||
-out "${CERT_HOST_PATH}/fullchain.pem" \
|
||
-subj "${SS_SUBJ}" \
|
||
-addext "subjectAltName=${SS_SANS}" \
|
||
2>/dev/null
|
||
fi
|
||
chmod 600 "${CERT_HOST_PATH}/privkey.pem"
|
||
success " Certificate : ${CERT_HOST_PATH}/fullchain.pem"
|
||
success " Private key : ${CERT_HOST_PATH}/privkey.pem"
|
||
info " Subject : ${SS_SUBJ}"
|
||
info " SANs : ${SS_SANS}"
|
||
info " Valid for : ${SS_DAYS} days"
|
||
fi
|
||
fi
|
||
fi
|
||
|
||
done # end per-relay loop
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 4 – Main server snippet
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
header "Step 4 · Main Server Configuration Snippet"
|
||
|
||
echo "Add the following relay entries to your main NetBird server's"
|
||
echo "management.json (or equivalent config), replacing any existing ones:"
|
||
echo ""
|
||
echo -e "${BOLD}Relay URLs:${RESET}"
|
||
for i in "${!RELAY_DOMAINS[@]}"; do
|
||
echo " rels://${RELAY_DOMAINS[$i]}:${RELAY_LISTEN_PORTS[$i]}"
|
||
done
|
||
echo ""
|
||
echo -e "${BOLD}STUN URLs:${RESET}"
|
||
for i in "${!RELAY_DOMAINS[@]}"; do
|
||
if [[ "${RELAY_ENABLE_STUN[$i]}" == "true" ]] && [[ -n "${RELAY_STUN_PORTS_LIST[$i]}" ]]; then
|
||
IFS=',' read -ra _SP <<< "${RELAY_STUN_PORTS_LIST[$i]}"
|
||
for _P in "${_SP[@]}"; do
|
||
_P="${_P// /}"
|
||
echo " stun:${RELAY_DOMAINS[$i]}:${_P}"
|
||
done
|
||
fi
|
||
done
|
||
echo ""
|
||
echo -e "${BOLD}Shared secret:${RESET} ${AUTH_SECRET}"
|
||
echo ""
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 5 – Next steps
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
header "Step 5 · Next Steps"
|
||
|
||
for i in "${!RELAY_DOMAINS[@]}"; do
|
||
D="${RELAY_DOMAINS[$i]}"
|
||
DIR="${RELAY_DIRS[$i]}"
|
||
LP="${RELAY_LISTEN_PORTS[$i]}"
|
||
TM="${RELAY_TLS_MODES[$i]}"
|
||
ES="${RELAY_ENABLE_STUN[$i]}"
|
||
SP="${RELAY_STUN_PORTS_LIST[$i]}"
|
||
|
||
echo -e "${BOLD}Relay: ${D}${RESET}"
|
||
echo " 1. Copy ${DIR}/ to the relay server"
|
||
echo " 2. On the relay server:"
|
||
echo " cd ${DIR}"
|
||
echo " docker compose up -d"
|
||
echo " docker compose logs -f"
|
||
if [[ "$TM" == "1" ]]; then
|
||
echo " 3. Trigger TLS cert (Let's Encrypt):"
|
||
echo " curl -v https://${D}/"
|
||
echo " Expect: 404 page not found + valid LE cert"
|
||
elif [[ "$TM" == "3" ]]; then
|
||
echo " Note: Self-signed cert is at ${DIR}/certs/"
|
||
echo " Clients must trust this CA or skip TLS verification."
|
||
fi
|
||
echo ""
|
||
echo -e " ${BOLD}Firewall ports to open:${RESET}"
|
||
[[ "$TM" == "1" ]] && echo " 80/tcp — Let's Encrypt HTTP challenge"
|
||
echo " ${LP}/tcp — Relay (HTTPS)"
|
||
if [[ "$ES" == "true" ]] && [[ -n "$SP" ]]; then
|
||
IFS=',' read -ra _SP <<< "$SP"
|
||
for _P in "${_SP[@]}"; do
|
||
_P="${_P// /}"
|
||
echo " ${_P}/udp — STUN"
|
||
done
|
||
fi
|
||
echo ""
|
||
done
|
||
success "Setup complete! 🎉"
|
||
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
# STEP 6 – Firewall (optional)
|
||
# ═════════════════════════════════════════════════════════════════════════════
|
||
header "Step 6 · Firewall Configuration (optional)"
|
||
|
||
$DRY_RUN && { warn "DRY-RUN: skipping firewall step."; exit 0; }
|
||
|
||
if ! ask_yn "Configure firewall rules now?" "y"; then
|
||
info "Skipped. Remember to open the ports listed above manually."
|
||
exit 0
|
||
fi
|
||
|
||
# ── Detect firewall ───────────────────────────────────────────────────────────
|
||
detect_firewall() {
|
||
if systemctl is-active --quiet firewalld 2>/dev/null; then
|
||
echo "firewalld"
|
||
elif systemctl is-active --quiet ufw 2>/dev/null || command -v ufw &>/dev/null && ufw status 2>/dev/null | grep -q "Status: active"; then
|
||
echo "ufw"
|
||
elif command -v nft &>/dev/null && nft list ruleset 2>/dev/null | grep -q "table"; then
|
||
echo "nftables"
|
||
elif command -v iptables &>/dev/null; then
|
||
echo "iptables"
|
||
else
|
||
echo "none"
|
||
fi
|
||
}
|
||
|
||
FW="$(detect_firewall)"
|
||
|
||
case "$FW" in
|
||
firewalld) info "Detected: firewalld" ;;
|
||
ufw) info "Detected: ufw" ;;
|
||
nftables) info "Detected: nftables" ;;
|
||
iptables) info "Detected: iptables" ;;
|
||
none) warn "No supported firewall detected (firewalld / ufw / nftables / iptables)."
|
||
info "Open the ports listed in Step 5 manually."
|
||
exit 0 ;;
|
||
esac
|
||
|
||
# ── Collect all ports to open across all relays ───────────────────────────────
|
||
declare -a FW_TCP=()
|
||
declare -a FW_UDP=()
|
||
|
||
for i in "${!RELAY_DOMAINS[@]}"; do
|
||
LP="${RELAY_LISTEN_PORTS[$i]}"
|
||
TM="${RELAY_TLS_MODES[$i]}"
|
||
ES="${RELAY_ENABLE_STUN[$i]}"
|
||
SP="${RELAY_STUN_PORTS_LIST[$i]}"
|
||
|
||
# TCP: relay port
|
||
FW_TCP+=("$LP")
|
||
# TCP: port 80 for Let's Encrypt
|
||
[[ "$TM" == "1" ]] && FW_TCP+=("80")
|
||
# UDP: STUN ports
|
||
if [[ "$ES" == "true" ]] && [[ -n "$SP" ]]; then
|
||
IFS=',' read -ra _SP <<< "$SP"
|
||
for _P in "${_SP[@]}"; do
|
||
FW_UDP+=("${_P// /}")
|
||
done
|
||
fi
|
||
done
|
||
|
||
# Deduplicate
|
||
mapfile -t FW_TCP < <(printf '%s\n' "${FW_TCP[@]}" | sort -un)
|
||
mapfile -t FW_UDP < <(printf '%s\n' "${FW_UDP[@]}" | sort -un)
|
||
|
||
echo ""
|
||
echo -e "${BOLD}Ports to open:${RESET}"
|
||
for p in "${FW_TCP[@]}"; do echo " ${p}/tcp"; done
|
||
for p in "${FW_UDP[@]}"; do echo " ${p}/udp"; done
|
||
echo ""
|
||
|
||
if ! ask_yn "Apply these rules?" "y"; then
|
||
info "Skipped."
|
||
exit 0
|
||
fi
|
||
|
||
# ── Apply rules ───────────────────────────────────────────────────────────────
|
||
apply_firewall_rules() {
|
||
local fw="$1"
|
||
|
||
case "$fw" in
|
||
|
||
firewalld)
|
||
for p in "${FW_TCP[@]}"; do
|
||
firewall-cmd --permanent --add-port="${p}/tcp" && \
|
||
success " firewalld: opened ${p}/tcp" || \
|
||
error " firewalld: failed to open ${p}/tcp"
|
||
done
|
||
for p in "${FW_UDP[@]}"; do
|
||
firewall-cmd --permanent --add-port="${p}/udp" && \
|
||
success " firewalld: opened ${p}/udp" || \
|
||
error " firewalld: failed to open ${p}/udp"
|
||
done
|
||
firewall-cmd --reload && success " firewalld: reloaded" || error " firewalld: reload failed"
|
||
;;
|
||
|
||
ufw)
|
||
for p in "${FW_TCP[@]}"; do
|
||
ufw allow "${p}/tcp" && \
|
||
success " ufw: allowed ${p}/tcp" || \
|
||
error " ufw: failed to allow ${p}/tcp"
|
||
done
|
||
for p in "${FW_UDP[@]}"; do
|
||
ufw allow "${p}/udp" && \
|
||
success " ufw: allowed ${p}/udp" || \
|
||
error " ufw: failed to allow ${p}/udp"
|
||
done
|
||
;;
|
||
|
||
nftables)
|
||
# Add rules to the first inet/ip filter input chain found, or create one
|
||
_NFT_TABLE="filter"
|
||
_NFT_CHAIN="input"
|
||
# Check if table/chain exist
|
||
if ! nft list chain inet "${_NFT_TABLE}" "${_NFT_CHAIN}" &>/dev/null; then
|
||
nft add table inet "${_NFT_TABLE}"
|
||
nft add chain inet "${_NFT_TABLE}" "${_NFT_CHAIN}" \
|
||
'{ type filter hook input priority 0 ; policy accept ; }'
|
||
info " nftables: created table inet ${_NFT_TABLE} chain ${_NFT_CHAIN}"
|
||
fi
|
||
for p in "${FW_TCP[@]}"; do
|
||
nft add rule inet "${_NFT_TABLE}" "${_NFT_CHAIN}" tcp dport "${p}" accept && \
|
||
success " nftables: accepted ${p}/tcp" || \
|
||
error " nftables: failed ${p}/tcp"
|
||
done
|
||
for p in "${FW_UDP[@]}"; do
|
||
nft add rule inet "${_NFT_TABLE}" "${_NFT_CHAIN}" udp dport "${p}" accept && \
|
||
success " nftables: accepted ${p}/udp" || \
|
||
error " nftables: failed ${p}/udp"
|
||
done
|
||
# Persist
|
||
if command -v nft &>/dev/null; then
|
||
if [[ -d /etc/nftables.d ]]; then
|
||
nft list ruleset > /etc/nftables.d/netbird-relay.nft && \
|
||
success " nftables: saved to /etc/nftables.d/netbird-relay.nft"
|
||
elif [[ -f /etc/nftables.conf ]]; then
|
||
nft list ruleset > /etc/nftables.conf && \
|
||
success " nftables: saved to /etc/nftables.conf"
|
||
else
|
||
warn " nftables: rules applied but not persisted — save manually with:"
|
||
warn " nft list ruleset > /etc/nftables.conf"
|
||
fi
|
||
fi
|
||
;;
|
||
|
||
iptables)
|
||
for p in "${FW_TCP[@]}"; do
|
||
iptables -C INPUT -p tcp --dport "${p}" -j ACCEPT 2>/dev/null || {
|
||
iptables -A INPUT -p tcp --dport "${p}" -j ACCEPT && \
|
||
success " iptables: opened ${p}/tcp" || \
|
||
error " iptables: failed to open ${p}/tcp"
|
||
}
|
||
done
|
||
for p in "${FW_UDP[@]}"; do
|
||
iptables -C INPUT -p udp --dport "${p}" -j ACCEPT 2>/dev/null || {
|
||
iptables -A INPUT -p udp --dport "${p}" -j ACCEPT && \
|
||
success " iptables: opened ${p}/udp" || \
|
||
error " iptables: failed to open ${p}/udp"
|
||
}
|
||
done
|
||
# Persist
|
||
if command -v netfilter-persistent &>/dev/null; then
|
||
netfilter-persistent save && success " iptables: rules persisted via netfilter-persistent"
|
||
elif command -v iptables-save &>/dev/null; then
|
||
if [[ -f /etc/iptables/rules.v4 ]]; then
|
||
iptables-save > /etc/iptables/rules.v4 && \
|
||
success " iptables: saved to /etc/iptables/rules.v4"
|
||
else
|
||
warn " iptables: rules applied but not persisted — save manually with:"
|
||
warn " iptables-save > /etc/iptables/rules.v4"
|
||
fi
|
||
fi
|
||
;;
|
||
esac
|
||
}
|
||
|
||
if [[ "$EUID" -ne 0 ]]; then
|
||
warn "Not running as root — firewall commands may fail."
|
||
warn "Re-run with sudo if needed."
|
||
fi
|
||
|
||
apply_firewall_rules "$FW"
|
||
echo ""
|
||
success "Firewall rules applied. 🎉" |