Files
ubuntu-post-install/services/mealie.sh
T
Claude 9e06ed4b83 Bake cross-service port collision avoidance into every service script
With 70+ services sharing a handful of common default ports (emby and
jellyfin both default to 8096, changedetection and frigate both default
to 5000, arm and nextcloud both default to 8080...), nothing previously
checked whether a service's default port was actually free on the host.
Whichever service installed second would silently write a compose file
claiming an already-held port, only failing at `docker compose up` time.

Adds two shared helpers to lib/common.sh:
- port_in_use PORT [PROTO] — true if something's already listening
- find_free_port VARNAME START [PROTO] — scans upward, writes back the
  first free port

Every service that publishes a fixed host port now scans before writing
docker-compose.yml, on every install (not just when adding an explicit
additional instance). On a normal single-install host this is a silent
no-op; it only changes behavior when something else already holds the
port.

- The 19 services already given multi-instance support this session had
  their port scan moved out of the "add instance" branch to run
  unconditionally, since the same collision risk exists on a plain first
  install.
- 20 more services with previously-hardcoded ports gained scanning for
  the first time: archivebox, arm, calibre-web, changedetection,
  drum-rhythm-game, gatus, n8n, nextcloud, onlyoffice, stirling-pdf,
  uptimekuma, portainer, iopaint (both GPU/CPU compose branches), koha
  (paired), syncthing (paired), wg-easy (paired, plus WG_PORT env so
  generated peer configs keep the right Endpoint), homeassistant
  (bridge-mode only — host mode can only warn), frigate and
  frigate-audio (multi-port stacks, moved together).
- caddy.sh is the deliberate exception: 80/443 stay fixed and only warn
  on collision, since silently moving Caddy itself would leave nothing
  listening where any client actually looks.
- authelia.sh needs no change — it has no published host port at all.
- Every service's standalone bootstrap fallback (sudo bash services/x.sh
  with no sibling files) got the same two helpers duplicated into its
  stub block, matching how every other shared helper is already handled
  there.

Documents the full pattern in CLAUDE.md's new "Port collision avoidance"
section, including the quoted-heredoc/backtick-escaping gotcha and the
network_mode:host limitation (can only scan ports the app takes as a
configurable env var).

Verified via bash -n on every changed file, plus functional runs seeding
occupied ports for each collision shape used here (single, paired,
multi-port stacks) and confirming the scan/shift and generated
compose/README output are correct — including the emby/jellyfin,
nextcloud/arm, and frigate/changedetection collision scenarios that
originally motivated this.
2026-08-09 23:55:49 +00:00

373 lines
15 KiB
Bash

#!/bin/bash
# services/mealie.sh — Recipe manager & meal planner (Mealie).
# Part of the modular post-install system (sourced by setup.sh).
#
# Can also be run standalone on any machine:
# sudo bash mealie.sh
# (Docker must already be installed when run standalone)
#
# Ported from ubuntu-post-install-24.04-crowdsec.sh (# ---- MEALIE ----).
# Own ~/docker/mealie/ with a standalone docker-compose.yml.
# ── Standalone bootstrap ──────────────────────────────────────────────────────
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
[[ "$(id -u)" == "0" ]] || { echo "Run with sudo: sudo bash $0"; exit 1; }
_SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
_COMMON="$_SELF_DIR/../lib/common.sh"
if [[ -f "$_COMMON" ]]; then
source "$_COMMON"
else
log_info() { echo -e "\033[0;34m[INFO]\033[0m $*"; }
log_success() { echo -e "\033[0;32m[OK]\033[0m $*"; }
log_warning() { echo -e "\033[1;33m[WARN]\033[0m $*"; }
log_error() { echo -e "\033[0;31m[ERROR]\033[0m $*" >&2; }
require_docker() {
command -v docker &>/dev/null || {
log_error "Docker not found. Install it first:"
log_error " curl -fsSL https://get.docker.com | sudo sh"
return 1
}
docker compose version &>/dev/null || {
log_error "Docker Compose plugin missing:"
log_error " sudo apt-get install -y docker-compose-plugin"
return 1
}
}
ensure_docker_dir_ownership() {
chown -R "$ACTUAL_USER:$ACTUAL_USER" "$@" 2>/dev/null || true
}
port_in_use() {
local _port="$1" _proto="${2:-tcp}"
local _flag="-tlnH"
[ "$_proto" = "udp" ] && _flag="-ulnH"
ss "$_flag" "sport = :${_port}" 2>/dev/null | grep -q .
}
find_free_port() {
local _varname="$1" _port="$2" _proto="${3:-tcp}"
while port_in_use "$_port" "$_proto"; do
_port=$((_port + 1))
done
eval "$_varname='$_port'"
}
prompt_text() {
local _q="$1" _def="$2" _var="$3" _r
[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
read -r -p " $_q " _r
eval "$_var='${_r:-$_def}'"
}
prompt_yn() {
local _q="$1" _def="$2" _var="$3" _r
[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
read -r -p " $_q " _r
eval "$_var='${_r:-$_def}'"
}
configure_caddy_for_service() {
local _name="$1" _upstream="$2" _subdomain="$3" _extra="${4:-}"
local _caddy_dir="$DOCKER_DIR/caddy"
local _caddyfile="$_caddy_dir/Caddyfile"
local _display_port="${_upstream##*:}"
# Determine mode: local Caddy, remote Caddy, or none
local _mode="none"
[[ -d "$_caddy_dir" ]] && _mode="local"
[[ -n "${CADDY_REMOTE_HOST:-}" ]] && [[ "$_mode" != "local" ]] && _mode="remote"
[[ "$_mode" == "none" ]] && {
log_info "Access $_name directly on port $_display_port."
return 0
}
echo ""
local _do_caddy=""
if [[ "$_mode" == "remote" ]]; then
log_info "Remote Caddy configured (${CADDY_REMOTE_HOST})."
log_info "A snippet file will be saved to ~/docker/caddy-snippets/."
fi
read -r -p " Configure Caddy reverse proxy for $_name? [y/N]: " _do_caddy
[[ "${_do_caddy,,}" == "y" ]] || {
log_info "Skipping — access at: http://localhost:$_display_port"
return 0
}
# Domain prompt — pre-fill from SITE_DOMAIN when available
local _default_domain=""
if [[ -n "${SITE_DOMAIN:-}" ]] && [[ "$SITE_DOMAIN" != "example.com" ]]; then
_default_domain="${_subdomain}.${SITE_DOMAIN}"
log_info "Default: $_default_domain"
fi
local _domain=""
read -r -p " Domain [${_default_domain:-required}]: " _domain
_domain="${_domain:-$_default_domain}"
[[ -n "$_domain" ]] || { log_warning "No domain entered — skipping Caddy."; return 0; }
# Build upstream — remote Caddy uses host IP:port, not container name
local _block_upstream="$_upstream"
if [[ "$_mode" == "remote" ]]; then
_block_upstream="${CADDY_REMOTE_HOST}:${_display_port}"
fi
local _site_block
_site_block="$(cat << CBLOCK
# $_name
${_domain} {
reverse_proxy ${_block_upstream}
header {
Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
X-Content-Type-Options "nosniff"
X-Frame-Options "SAMEORIGIN"
Referrer-Policy "strict-origin-when-cross-origin"
}
log {
output file /var/log/caddy/${_domain}.log
format json
}
${_extra}
}
CBLOCK
)"
if [[ "$_mode" == "local" ]]; then
if [[ -f "$_caddyfile" ]]; then
local _bk="$_caddy_dir/Caddyfile.backup.$(date +%Y%m%d-%H%M%S)"
cp "$_caddyfile" "$_bk"
log_info "Backed up Caddyfile to $(basename "$_bk")"
else
touch "$_caddyfile"
fi
if grep -q "^${_domain}" "$_caddyfile" 2>/dev/null; then
log_warning "$_domain already in Caddyfile"
local _ow=""
read -r -p " Overwrite? [y/N]: " _ow
[[ "${_ow,,}" == "y" ]] || { log_info "Keeping existing entry."; return 0; }
sed -i "/^${_domain}/,/^}/d" "$_caddyfile"
fi
printf '%s\n' "$_site_block" >> "$_caddyfile"
log_success "Added $_domain to Caddyfile"
docker exec caddy caddy fmt --overwrite /etc/caddy/Caddyfile 2>/dev/null || true
if docker exec caddy caddy reload --config /etc/caddy/Caddyfile 2>/dev/null; then
log_success "$_name accessible at: https://$_domain"
else
log_warning "Reload failed — check: docker logs caddy"
log_info "Manual reload: docker exec caddy caddy reload --config /etc/caddy/Caddyfile"
fi
else
local _snippet_dir="$DOCKER_DIR/caddy-snippets"
local _snippet_file="$_snippet_dir/${_subdomain}.caddy"
mkdir -p "$_snippet_dir"
printf '%s\n' "$_site_block" > "$_snippet_file"
chown "$ACTUAL_USER:$ACTUAL_USER" "$_snippet_file" 2>/dev/null || true
log_success "Snippet saved: $_snippet_file"
log_info "Copy to Caddy machine:"
log_info " scp $_snippet_file caddy-host:~/caddy-snippets/"
log_info " rsync -av $_snippet_dir/ caddy-host:~/caddy-snippets/ (all at once)"
fi
}
write_readme() {
local _dir="$1"; shift
mkdir -p "$_dir"
cat > "$_dir/README.md"
}
fi
ACTUAL_USER="${ACTUAL_USER:-${SUDO_USER:-$USER}}"
ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" 2>/dev/null | cut -d: -f6 || echo "${HOME:-/root}")"
DOCKER_DIR="${DOCKER_DIR:-$ACTUAL_HOME/docker}"
DRY_RUN="${DRY_RUN:-false}"
UNATTENDED="${UNATTENDED:-false}"
SITE_TZ="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
SITE_DOMAIN="${SITE_DOMAIN:-example.com}"
SITE_CADDY_NET="${SITE_CADDY_NET:-caddy_net}"
register_service() { :; }
_RUN_STANDALONE=1
fi
# ─────────────────────────────────────────────────────────────────────────────
register_service mealie utilities "Recipe manager & meal planner (Mealie)" 9925
install_mealie() {
require_docker || return 1
# ── Instance selection ───────────────────────────────────────────────────
# First instance keeps the plain "mealie" name/paths/port exactly as
# before (zero behavior change for anyone with a single instance). Only
# asking to add a second one introduces suffixed naming — same pattern as
# services/mattermost.sh and services/wordpress.sh.
local MEALIE_DIR="$DOCKER_DIR/mealie"
local INSTANCE_SUFFIX="" CONTAINER="mealie"
local WEB_PORT="9925"
if [ "$DRY_RUN" = true ]; then
echo "[DRY-RUN] Mealie would:"
echo " - Offer to add a new, separate instance if one already exists"
echo " - Create \$DOCKER_DIR/mealie(-<name>) with docker-compose.yml (data/)"
echo " - Auto-scan for a free host port if this is an additional instance"
echo " - Default login: changeme@email.com / MyPassword (change immediately)"
echo " - Offer a Caddy reverse proxy and to start the container"
return 0
fi
if [ -d "$MEALIE_DIR" ]; then
echo ""
echo " Mealie is already installed at $MEALIE_DIR."
echo " 1) Manage that install (update / full reinstall / cancel)"
echo " 2) Add a NEW, separate Mealie instance alongside it (its own"
echo " server, recipes, and port — full isolation)"
echo ""
local _TOP_CHOICE=""
prompt_text " Choice [1/2]:" "1" _TOP_CHOICE
if [ "$_TOP_CHOICE" = "2" ]; then
local _suffix=""
while true; do
prompt_text " Short name for the new instance (letters/numbers/hyphens, e.g. 'family'):" "" _suffix
_suffix="$(echo "$_suffix" | tr -cs 'a-zA-Z0-9-' '-' | sed 's/^-*//;s/-*$//')"
if [ -z "$_suffix" ]; then
log_warning "Name can't be empty."; continue
fi
if [ -d "$DOCKER_DIR/mealie-$_suffix" ]; then
log_warning "mealie-$_suffix already exists — pick another name."; continue
fi
break
done
INSTANCE_SUFFIX="$_suffix"
MEALIE_DIR="$DOCKER_DIR/mealie-$_suffix"
CONTAINER="mealie-$_suffix"
log_info "New instance: $MEALIE_DIR"
fi
fi
# Scan for a free port unconditionally — not just when adding an explicit
# additional instance. A plain first install can just as easily collide
# with an unrelated service that already claimed this default port — see
# CLAUDE.md's "Port collision avoidance" section.
find_free_port WEB_PORT "$WEB_PORT"
mkdir -p "$MEALIE_DIR"
ensure_docker_dir_ownership "$MEALIE_DIR"
cd "$MEALIE_DIR" || return 1
local TZ_VAL UID_VAL GID_VAL
TZ_VAL="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
UID_VAL=$(id -u "$ACTUAL_USER"); GID_VAL=$(id -g "$ACTUAL_USER")
# BASE_URL must match the public URL Mealie is served on (used for email links,
# OAuth redirects, and the web app manifest). Default to SITE_DOMAIN if set.
local MEALIE_BASE_URL="http://localhost:${WEB_PORT}"
if [ -n "$SITE_DOMAIN" ] && [ "$SITE_DOMAIN" != "example.com" ]; then
MEALIE_BASE_URL="https://recipes${INSTANCE_SUFFIX:+-$INSTANCE_SUFFIX}.${SITE_DOMAIN}"
fi
# Mirrors configure_caddy_for_service's own mode resolution (lib/common.sh):
# explicit CADDY_MODE from the site config wins, then a local ~/docker/caddy,
# then the legacy CADDY_REMOTE_HOST var. Only "local" joins caddy_net — a
# remote Caddy box can't resolve container names on this host's bridge
# network anyway; it reaches this service via the host's published port.
local _CADDY_MODE="${CADDY_MODE:-none}"
[ "$_CADDY_MODE" = "none" ] && [ -d "$DOCKER_DIR/caddy" ] && _CADDY_MODE="local"
[ "$_CADDY_MODE" = "none" ] && [ -n "${CADDY_REMOTE_HOST:-}" ] && _CADDY_MODE="remote"
local _CADDY_NET_BLOCK=""
local _CADDY_NET_SECTION=""
if [ "$_CADDY_MODE" = "local" ]; then
_CADDY_NET_BLOCK=" networks:
- caddy_net
"
_CADDY_NET_SECTION="
networks:
caddy_net:
external: true
name: ${SITE_CADDY_NET:-caddy_net}
"
fi
cat > docker-compose.yml << MEALIE_COMPOSE
name: $CONTAINER
services:
mealie:
image: ghcr.io/mealie-recipes/mealie:latest
container_name: $CONTAINER
hostname: $CONTAINER
restart: unless-stopped
env_file: .env
environment:
- PUID=$UID_VAL
- PGID=$GID_VAL
- TZ=$TZ_VAL
- ALLOW_SIGNUP=true
- MAX_WORKERS=1
- WEB_CONCURRENCY=1
volumes:
- ./data:/app/data
ports:
- "${WEB_PORT}:9000"
${_CADDY_NET_BLOCK}${_CADDY_NET_SECTION}
MEALIE_COMPOSE
cat > .env << MEALIE_ENV
# Public URL Mealie is served on — used for email links and OAuth redirects.
# Update if you change your domain or switch from HTTP to HTTPS.
BASE_URL=$MEALIE_BASE_URL
CADDY_NET=$SITE_CADDY_NET
MEALIE_ENV
mkdir -p data
chown -R "$ACTUAL_USER:$ACTUAL_USER" "$MEALIE_DIR"
log_success "Mealie${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)} configured at $MEALIE_DIR (port $WEB_PORT)"
configure_caddy_for_service "Mealie${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)}" "${CONTAINER}:9000" "recipes${INSTANCE_SUFFIX:+-$INSTANCE_SUFFIX}"
write_readme "$MEALIE_DIR" << MD
# Mealie${INSTANCE_SUFFIX:+ — $INSTANCE_SUFFIX}
Recipe manager and meal planner — import recipes from any URL, plan meals,
and generate shopping lists. Optional AI-powered recipe parsing.
$( [ -n "$INSTANCE_SUFFIX" ] && echo "
This is a separate, fully isolated instance (own server, own recipes, own
port) — not shared recipes with another Mealie instance.")
- Web UI: http://localhost:${WEB_PORT}
- Default login: changeme@email.com / MyPassword (change immediately!)
- App data: \`data/\`
## Manage
\`\`\`bash
cd $MEALIE_DIR
docker compose up -d # start
docker compose down # stop
docker compose logs -f # logs
docker compose pull && docker compose up -d # update
\`\`\`
## Notes
- If using Caddy, update \`BASE_URL\` in \`docker-compose.yml\` to your domain.
MD
local START_MEALIE=""
prompt_yn "Start Mealie${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)} now? (y/n):" "y" START_MEALIE
if [ "$START_MEALIE" = "y" ] || [ "$START_MEALIE" = "Y" ]; then
docker compose up -d && log_success "Mealie${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)} started" || log_warning "Failed to start — check: docker compose logs"
fi
echo ""
echo " Access at: http://localhost:${WEB_PORT}"
echo " Default: changeme@email.com / MyPassword (change immediately!)"
echo ""
}
# Run immediately when executed directly (deferred until after function definition)
[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_mealie