Claude
bec9228c55
Confirmed live: install_frigate()'s fresh-install path overwrote a working, hand-crafted docker-compose.yml (Frigate + mosquitto + frigate-notify) with zero backup, because that file's shape didn't match what frigate.sh's own "existing install" detection knew how to recognize. Every service's own detection is a judgment call about what counts as "already installed" and can miss a real setup built outside this repo's conventions. lib/common.sh gains backup_if_exists(FILE) — copies FILE to FILE.bak.<timestamp> if it exists, no-ops otherwise (including DRY_RUN). Applied before every service's own `cat > docker-compose.yml`/`cat > .env` write across all 60 services that do one (115 call sites), plus a matching standalone-mode stub added to every service's own bootstrap block, same convention already used for port_in_use/find_free_port. This doesn't replace a service's own update/fresh-reinstall detection — it's the safety net underneath it, so a wrong detection costs a .bak file to restore from instead of the original silently disappearing. Also fixes the actual gap that surfaced this: services/frigate.sh's Authelia offer only checked for Authelia installed locally on Frigate's own box, which is never true for a dedicated NVR box with no local Caddy either (the common shape — Caddy lives elsewhere, snippet-generation mode already handles that). Now offers Authelia protection unconditionally and, when Authelia isn't local, asks whether it lives on the same machine as Caddy (still "import authelia", since that's local to wherever Caddy ends up) or on a genuinely separate third machine (the explicit header-pinned forward_auth form, per CLAUDE.md's "forward_auth to a remote Authelia" note, needed because a bare authelia:9091 shortcut only works one hop).
318 lines
12 KiB
Bash
318 lines
12 KiB
Bash
#!/bin/bash
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# services/syncthing.sh — Continuous file sync between devices (Syncthing).
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# Part of the modular post-install system (sourced by setup.sh).
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#
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# Can also be run standalone on any machine:
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# sudo bash syncthing.sh
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# (Docker must already be installed when run standalone)
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# ── Standalone bootstrap ──────────────────────────────────────────────────────
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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[[ "$(id -u)" == "0" ]] || { echo "Run with sudo: sudo bash $0"; exit 1; }
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_SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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_COMMON="$_SELF_DIR/../lib/common.sh"
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if [[ -f "$_COMMON" ]]; then
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# Full repo present — use the real helpers (picks up ~/docker/.config too)
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# shellcheck source=../lib/common.sh
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source "$_COMMON"
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else
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# One-off copy — inline minimal stubs so the script works without the repo
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log_info() { echo -e "\033[0;34m[INFO]\033[0m $*"; }
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log_success() { echo -e "\033[0;32m[OK]\033[0m $*"; }
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log_warning() { echo -e "\033[1;33m[WARN]\033[0m $*"; }
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log_error() { echo -e "\033[0;31m[ERROR]\033[0m $*" >&2; }
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require_docker() {
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command -v docker &>/dev/null || {
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log_error "Docker not found. Install it first:"
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log_error " curl -fsSL https://get.docker.com | sudo sh"
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return 1
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}
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docker compose version &>/dev/null || {
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log_error "Docker Compose plugin missing:"
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log_error " sudo apt-get install -y docker-compose-plugin"
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return 1
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}
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}
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ensure_docker_dir_ownership() {
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chown -R "$ACTUAL_USER:$ACTUAL_USER" "$@" 2>/dev/null || true
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}
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port_in_use() {
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local _port="$1" _proto="${2:-tcp}"
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local _flag="-tlnH"
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[ "$_proto" = "udp" ] && _flag="-ulnH"
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ss "$_flag" "sport = :${_port}" 2>/dev/null | grep -q .
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}
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find_free_port() {
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local _varname="$1" _port="$2" _proto="${3:-tcp}"
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while port_in_use "$_port" "$_proto"; do
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_port=$((_port + 1))
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done
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eval "$_varname='$_port'"
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}
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# Match common.sh's eval-based pattern so local vars in install_* are set correctly
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prompt_text() {
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local _q="$1" _def="$2" _var="$3" _r
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[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
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read -r -p " $_q " _r
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eval "$_var='${_r:-$_def}'"
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}
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prompt_yn() {
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local _q="$1" _def="$2" _var="$3" _r
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[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
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read -r -p " $_q " _r
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eval "$_var='${_r:-$_def}'"
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}
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configure_caddy_for_service() {
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local _name="$1" _upstream="$2" _subdomain="$3" _extra="${4:-}"
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local _caddy_dir="$DOCKER_DIR/caddy"
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local _caddyfile="$_caddy_dir/Caddyfile"
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if [[ ! -d "$_caddy_dir" ]]; then
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log_info "Access $_name directly on port ${_upstream##*:}."
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return 0
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fi
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echo ""
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local _do_caddy=""
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read -r -p " Configure Caddy reverse proxy for $_name? [y/N]: " _do_caddy
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[[ "${_do_caddy,,}" == "y" ]] || {
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log_info "Skipping — access at: http://localhost:${_upstream##*:}"
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return 0
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}
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local _domain=""
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read -r -p " Domain (e.g. ${_subdomain}.${SITE_DOMAIN:-example.com}): " _domain
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[[ -n "$_domain" ]] || { log_warning "No domain entered — skipping Caddy."; return 0; }
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# Back up before touching
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if [[ -f "$_caddyfile" ]]; then
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local _bk="$_caddy_dir/Caddyfile.backup.$(date +%Y%m%d-%H%M%S)"
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cp "$_caddyfile" "$_bk"
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log_info "Backed up Caddyfile to $(basename "$_bk")"
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else
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touch "$_caddyfile"
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fi
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# Remove existing block for this domain if present
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if grep -q "^${_domain}" "$_caddyfile" 2>/dev/null; then
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log_warning "$_domain already in Caddyfile"
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local _ow=""
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read -r -p " Overwrite? [y/N]: " _ow
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[[ "${_ow,,}" == "y" ]] || { log_info "Keeping existing entry."; return 0; }
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sed -i "/^${_domain}/,/^}/d" "$_caddyfile"
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fi
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cat >> "$_caddyfile" << CBLOCK
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# $_name
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$_domain {
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reverse_proxy $_upstream
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header {
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Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
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X-Content-Type-Options "nosniff"
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X-Frame-Options "SAMEORIGIN"
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Referrer-Policy "strict-origin-when-cross-origin"
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}
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log {
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output file /var/log/caddy/${_domain}.log
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format json
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}
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${_extra}
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}
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CBLOCK
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log_success "Added $_domain to Caddyfile"
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docker exec caddy caddy fmt --overwrite /etc/caddy/Caddyfile 2>/dev/null || true
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if docker exec caddy caddy reload --config /etc/caddy/Caddyfile 2>/dev/null; then
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log_success "$_name accessible at: https://$_domain"
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else
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log_warning "Reload failed — check: docker logs caddy"
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log_info "Manual reload: docker exec caddy caddy reload --config /etc/caddy/Caddyfile"
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fi
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}
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write_readme() {
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local _dir="$1"; shift
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mkdir -p "$_dir"
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cat > "$_dir/README.md"
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}
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backup_if_exists() {
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local _file="$1"
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[ -f "$_file" ] || return 0
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cp -p "$_file" "${_file}.bak.$(date +%Y%m%d-%H%M%S)" 2>/dev/null
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}
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fi
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# Globals — ACTUAL_USER/ACTUAL_HOME must come before DOCKER_DIR
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# ($HOME under sudo is /root, not the real user's home)
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ACTUAL_USER="${ACTUAL_USER:-${SUDO_USER:-$USER}}"
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ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" 2>/dev/null | cut -d: -f6 || echo "${HOME:-/root}")"
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DOCKER_DIR="${DOCKER_DIR:-$ACTUAL_HOME/docker}"
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DRY_RUN="${DRY_RUN:-false}"
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UNATTENDED="${UNATTENDED:-false}"
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SITE_TZ="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
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SITE_DOMAIN="${SITE_DOMAIN:-example.com}"
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SITE_CADDY_NET="${SITE_CADDY_NET:-caddy_net}"
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register_service() { :; } # no-op — no wizard to register into
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_RUN_STANDALONE=1
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fi
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# ─────────────────────────────────────────────────────────────────────────────
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register_service syncthing utilities "Continuous file sync between devices (Syncthing)" 8384
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install_syncthing() {
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require_docker || return 1
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log_info "Installing Syncthing..."
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local DIR="$DOCKER_DIR/syncthing"
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local WEB_PORT="8384" SYNC_PORT="22000" DISCOVERY_PORT="21027"
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if [ "$DRY_RUN" = true ]; then
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echo "[DRY-RUN] Would create $DIR with docker-compose.yml and .env"
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echo "[DRY-RUN] Would expose web UI on 8384, sync protocol on 22000 (tcp+udp), discovery on 21027/udp"
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echo "[DRY-RUN] All 3 auto-scanned/shifted together if occupied"
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return 0
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fi
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# Scan for free host ports, moving all 3 together — a plain install
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# shouldn't silently claim a port another already-running service holds.
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# Note: DISCOVERY_PORT (LAN broadcast) only works for zero-config local
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# discovery at its standard number — shifting it away from 21027 means
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# peers must be added manually by device ID instead of relying on
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# auto-discovery. See CLAUDE.md's "Port collision avoidance" section.
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while port_in_use "$WEB_PORT" || port_in_use "$SYNC_PORT" \
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|| port_in_use "$SYNC_PORT" udp || port_in_use "$DISCOVERY_PORT" udp; do
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WEB_PORT=$((WEB_PORT + 1))
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SYNC_PORT=$((SYNC_PORT + 1))
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DISCOVERY_PORT=$((DISCOVERY_PORT + 1))
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done
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mkdir -p "$DIR"
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ensure_docker_dir_ownership "$DIR"
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cd "$DIR" || return 1
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local PUID PGID
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PUID="$(id -u "$ACTUAL_USER")"
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PGID="$(id -g "$ACTUAL_USER")"
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# Mirrors configure_caddy_for_service's own mode resolution (lib/common.sh):
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# explicit CADDY_MODE from the site config wins, then a local ~/docker/caddy,
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# then the legacy CADDY_REMOTE_HOST var. Only "local" joins caddy_net — a
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# remote Caddy box can't resolve container names on this host's bridge
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# network anyway; it reaches this service via the host's published port.
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local _CADDY_MODE="${CADDY_MODE:-none}"
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[ "$_CADDY_MODE" = "none" ] && [ -d "$DOCKER_DIR/caddy" ] && _CADDY_MODE="local"
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[ "$_CADDY_MODE" = "none" ] && [ -n "${CADDY_REMOTE_HOST:-}" ] && _CADDY_MODE="remote"
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local _CADDY_NET_BLOCK=""
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local _CADDY_NET_SECTION=""
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if [ "$_CADDY_MODE" = "local" ]; then
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_CADDY_NET_BLOCK=" networks:
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- caddy_net
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"
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_CADDY_NET_SECTION="
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networks:
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caddy_net:
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external: true
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name: ${SITE_CADDY_NET:-caddy_net}
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"
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fi
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backup_if_exists docker-compose.yml
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cat > docker-compose.yml << EOF
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name: syncthing
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services:
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syncthing:
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image: syncthing/syncthing:latest
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container_name: syncthing
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hostname: syncthing
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restart: unless-stopped
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environment:
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- PUID=\${PUID:-$PUID}
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- PGID=\${PGID:-$PGID}
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- TZ=\${SITE_TZ:-UTC}
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ports:
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- "${WEB_PORT}:8384"
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- "${SYNC_PORT}:22000/tcp"
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- "${SYNC_PORT}:22000/udp"
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- "${DISCOVERY_PORT}:21027/udp"
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volumes:
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- ./config:/var/syncthing/config
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- ./data:/var/syncthing
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${_CADDY_NET_BLOCK}${_CADDY_NET_SECTION}
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EOF
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backup_if_exists .env
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cat > .env << ENV
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CADDY_NET=$SITE_CADDY_NET
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PUID=$PUID
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PGID=$PGID
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SITE_TZ=$SITE_TZ
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ENV
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chmod 600 .env
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chown "$ACTUAL_USER:$ACTUAL_USER" .env
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configure_caddy_for_service "Syncthing" "syncthing:8384" "sync"
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write_readme "$DIR" << MD
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# Syncthing
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Continuous, decentralised file synchronisation between devices.
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## Access
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- Web UI: http://localhost:${WEB_PORT}
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- First run: go to **Settings → GUI** and set a username and password.
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$( [ "$DISCOVERY_PORT" != "21027" ] && echo "
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**Note:** the default ports were already in use, so this instance's ports
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were shifted — see below. Local LAN auto-discovery only works at the
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standard 21027/udp; with a shifted discovery port, add other devices
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manually by device ID instead of relying on auto-discovery." )
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## Firewall ports (for LAN sync)
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Open these on the host firewall so other Syncthing devices can reach this node:
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\`\`\`
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sudo ufw allow ${SYNC_PORT}/tcp comment "Syncthing sync protocol"
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sudo ufw allow ${SYNC_PORT}/udp comment "Syncthing sync protocol (QUIC)"
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sudo ufw allow ${DISCOVERY_PORT}/udp comment "Syncthing local discovery"
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\`\`\`
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## Manage
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\`\`\`
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cd $DIR
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docker compose up -d # start
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docker compose down # stop
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docker compose logs -f # logs
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docker compose pull && docker compose up -d # update
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\`\`\`
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MD
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local START=""
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prompt_yn "Start Syncthing now? (y/n):" "y" START
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if [ "$START" = "y" ] || [ "$START" = "Y" ]; then
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docker compose up -d \
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&& log_success "Syncthing started" \
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|| log_warning "Start failed — check: docker compose logs"
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fi
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echo " Access at: http://localhost:${WEB_PORT}"
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echo " First run: set a username and password in Settings → GUI"
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echo ""
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}
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# Run immediately when executed directly (deferred until after function definition)
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[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_syncthing
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