Claude
4b7a2c050b
Each service can now be run directly with sudo bash <service>.sh on any machine with Docker installed, without needing the full post-install repo. Uses the shared bootstrap pattern from docs/standalone-template.sh. https://claude.ai/code/session_014CCYqVwW6d6f5dw1qRokYt
286 lines
9.7 KiB
Bash
286 lines
9.7 KiB
Bash
#!/bin/bash
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# services/ddclient.sh — Dynamic DNS updater (ddclient).
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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 ddclient.sh
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# (Docker must already be installed when run standalone)
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#
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# Ported from ubuntu-post-install-24.04-crowdsec.sh (# ---- DDCLIENT ----).
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# Own ~/docker/ddclient/ with a standalone docker-compose.yml + config.
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# Supports Cloudflare, DuckDNS, No-IP, and many other providers.
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# Edit config/ddclient.conf before starting — no web UI.
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# ── Standalone bootstrap ──────────────────────────────────────────────────────
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# Detected when the script is executed directly rather than sourced by setup.sh.
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# Sets up helpers and globals, then defers execution until after the function
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# definition at the bottom of this file.
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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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# 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 > "$_dir/README.md"
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}
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fi
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# Globals — ACTUAL_USER/ACTUAL_HOME must come before DOCKER_DIR
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# ($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 ddclient utilities "Dynamic DNS updater — keep your domain pointing at your home IP (ddclient)"
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install_ddclient() {
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require_docker || return 1
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local DDCLIENT_DIR="$DOCKER_DIR/ddclient"
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if [ "$DRY_RUN" = true ]; then
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echo "[DRY-RUN] ddclient would:"
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echo " - Create $DDCLIENT_DIR with docker-compose.yml + config/ddclient.conf template"
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echo " - No web UI — edit config/ddclient.conf for your DNS provider before starting"
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return 0
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fi
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mkdir -p "$DDCLIENT_DIR"
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ensure_docker_dir_ownership "$DDCLIENT_DIR"
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cd "$DDCLIENT_DIR" || return 1
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local TZ_VAL; TZ_VAL="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
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cat > docker-compose.yml << 'DDCLIENT_COMPOSE'
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name: ddclient
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services:
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ddclient:
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image: lscr.io/linuxserver/ddclient:latest
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container_name: ddclient
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hostname: ddclient
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restart: unless-stopped
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environment:
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- PUID=1000
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- PGID=1000
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- TZ=${TZ}
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volumes:
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- ./config:/config
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DDCLIENT_COMPOSE
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cat > .env << DDCLIENT_ENV
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TZ=$TZ_VAL
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DDCLIENT_ENV
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mkdir -p config
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cat > config/ddclient.conf << 'DDCLIENT_CONF'
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# ddclient configuration
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# Docs: https://ddclient.net/
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#
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# ⚠️ YOU MUST EDIT THIS FILE before starting ddclient.
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# Uncomment and fill in the block for your DNS provider.
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daemon=300
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syslog=yes
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pid=/var/run/ddclient/ddclient.pid
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ssl=yes
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# Cloudflare example:
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# use=web, web=cloudflare
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# protocol=cloudflare
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# zone=example.com
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# login=token
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# password=your-api-token
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# example.com
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# DuckDNS example:
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# use=web
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# protocol=duckdns
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# password=your-duckdns-token
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# yourdomain.duckdns.org
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# No-IP example:
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# use=web
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# protocol=noip
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# login=your@email.com
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# password=your-password
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# yourhostname.ddns.net
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DDCLIENT_CONF
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chown -R "$ACTUAL_USER:$ACTUAL_USER" "$DDCLIENT_DIR"
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log_success "ddclient configured at $DDCLIENT_DIR"
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write_readme "$DDCLIENT_DIR" << MD
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# ddclient
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Dynamic DNS client — keeps your domain pointing at your home IP address
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even when your ISP changes it. No web UI; runs as a background daemon.
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- Config: \`config/ddclient.conf\` — **edit before starting**
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- Supported providers: Cloudflare, DuckDNS, No-IP, FreeDNS, and more
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## Setup
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1. Edit \`config/ddclient.conf\` for your DNS provider.
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2. Start: \`docker compose up -d\`
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3. Check logs: \`docker compose logs -f\`
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## Manage
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\`\`\`bash
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cd $DDCLIENT_DIR
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docker compose up -d # start
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docker compose down # stop
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docker compose logs -f # logs
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docker compose pull && docker compose up -d # update
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\`\`\`
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## Docs
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- https://ddclient.net/
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- Cloudflare setup: https://ddclient.net/protocols/cloudflare.html
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MD
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echo ""
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log_warning "Edit config/ddclient.conf for your DNS provider before starting."
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echo ""
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local START_DDC=""
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prompt_yn "Start ddclient now? (y/n):" "n" START_DDC
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if [ "$START_DDC" = "y" ] || [ "$START_DDC" = "Y" ]; then
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docker compose up -d && log_success "ddclient started" || log_warning "Failed to start — check: docker compose logs"
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fi
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echo ""
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echo " Config: $DDCLIENT_DIR/config/ddclient.conf"
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echo " Docs: https://ddclient.net/"
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echo ""
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}
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# Run immediately when executed directly (deferred until after function definition)
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[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_ddclient
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