Add polling deployment scripts

.dockerignore

@@ -0,0 +1,4 @@
+.git
+.env
+data
+node_modules

README.md

@@ -15,11 +15,22 @@ sudo ./run.sh
 sudo ./stop.sh
 ```
 
+## Continuous Deployment
+
+`cd-watch.sh` checks `origin/main` and runs `deploy.sh` when the remote revision changes.
+
+```sh
+sudo ./cd-watch.sh
+```
+
+The server cron runs this once per minute.
+
 ## Paths
 
 - App: `/volume2/homes/whitekomani/photo-request-service`
 - Config: `.env`
 - DB: `data/db.json`
+- Deploy log: `data/deploy.log`
 - Uploads: `/volume2/AKA Drive/사진 받기`
 
 Each request creates its own folder under the upload directory.

cd-watch.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+set -eu
+
+APP_DIR="$(cd "$(dirname "$0")" && pwd)"
+STATE_FILE="$APP_DIR/data/deployed-rev"
+LOG_FILE="$APP_DIR/data/deploy.log"
+
+mkdir -p "$APP_DIR/data"
+cd "$APP_DIR"
+
+remote_rev="$(git ls-remote origin refs/heads/main | awk '{print $1}')"
+if [ -z "$remote_rev" ]; then
+  echo "$(date '+%Y-%m-%d %H:%M:%S') no remote revision found" >> "$LOG_FILE"
+  exit 1
+fi
+
+current_rev=""
+[ -f "$STATE_FILE" ] && current_rev="$(cat "$STATE_FILE")"
+
+if [ "$remote_rev" = "$current_rev" ]; then
+  exit 0
+fi
+
+echo "$(date '+%Y-%m-%d %H:%M:%S') change detected $current_rev -> $remote_rev" >> "$LOG_FILE"
+"$APP_DIR/deploy.sh"
+printf '%s\n' "$remote_rev" > "$STATE_FILE"

deploy.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+set -eu
+
+APP_DIR="$(cd "$(dirname "$0")" && pwd)"
+LOG_FILE="$APP_DIR/data/deploy.log"
+LOCK_DIR="$APP_DIR/data/deploy.lock"
+
+mkdir -p "$APP_DIR/data"
+
+if ! mkdir "$LOCK_DIR" 2>/dev/null; then
+  echo "$(date '+%Y-%m-%d %H:%M:%S') deploy already running" >> "$LOG_FILE"
+  exit 0
+fi
+trap 'rmdir "$LOCK_DIR"' EXIT
+
+cd "$APP_DIR"
+
+echo "$(date '+%Y-%m-%d %H:%M:%S') deploy start" >> "$LOG_FILE"
+git fetch origin main >> "$LOG_FILE" 2>&1
+git reset --hard origin/main >> "$LOG_FILE" 2>&1
+
+/usr/local/bin/docker build -t photoreq:latest . >> "$LOG_FILE" 2>&1
+./run.sh >> "$LOG_FILE" 2>&1
+
+echo "$(date '+%Y-%m-%d %H:%M:%S') deploy done $(git rev-parse --short HEAD)" >> "$LOG_FILE"