readme work

learning to use shields.io

.gitea/workflows/build.yml

@@ -1,35 +0,0 @@
-name: Build and Push Docker Image
-
-on:
-  push:
-    branches:
-      - main
-      - develop
-  pull_request:
-
-jobs:
-  build:
-    runs-on: prodesk
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to Gitea Docker Registry
-        uses: docker/login-action@v3
-        with:
-          registry: gitea.calahilstudios.com
-          username: ${{ secrets.REGISTRY_USER }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
-
-      - name: Build and push image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: ./Dockerfile
-          push: true
-          tags: |
-            gitea.calahilstudios.com/${{ github.repository_owner }}/${{ github.event.repository.name }}:develop
-            gitea.calahilstudios.com/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.sha }}

.github/workflows/build.yml

@@ -0,0 +1,77 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # 🧠 Login to Docker Hub
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: docker.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      # 🧠 Login to GitHub Container Registry
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # 🧠 Login to Gitea
+      - name: Login to Gitea
+        uses: docker/login-action@v3
+        with:
+          registry: gitea.calahilstudios.com
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITEA_TOKEN }}
+
+      - name: Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+            gitea.calahilstudios.com/${{ github.repository }}
+            ${{ github.repository }}
+          tags: |
+            # Always include short SHA
+            type=sha,format=short
+
+            # Include latest if on default branch (usually 'main' or 'develop')
+            type=raw,value=latest,enable={{is_default_branch}}
+
+            # If this is a semver tag (vX.X.X), add full + minor version tags
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Debug GitHub context
+        run: |
+          echo "Tags: ${{ steps.meta.outputs.tags }}"
+          echo "Labels:  ${{ steps.meta.outputs.labels }}"
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.gitignore

@@ -0,0 +1 @@
+.env

Dockerfile

@@ -1,34 +1,47 @@
-# Use LinuxServer.io Duplicati base
 FROM linuxserver/duplicati:2.1.0
 
-# Install Docker CLI, bash, python3
-RUN apt-get update && \
-  DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+# Install Docker CLI, bash, python3, btrfs support and all the app directories
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends \
+  ca-certificates \
+  curl \
+  gnupg \
+  lsb-release \
   bash \
   python3 \
   python3-pip \
-  docker.io \
   btrfs-progs \
-  ca-certificates curl && \
-  rm -rf /var/lib/apt/lists/*
+  && mkdir -p /etc/apt/keyrings \
+  && curl -fsSL "https://download.docker.com/linux/$(. /etc/os-release; echo "$ID")/gpg" \
+  | gpg --dearmor -o /etc/apt/keyrings/docker.gpg \
+  && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+  https://download.docker.com/linux/$(. /etc/os-release; echo "$ID") \
+  $(lsb_release -cs) stable" \
+  | tee /etc/apt/sources.list.d/docker.list > /dev/null \
+  && apt-get update \
+  && apt-get install -y --no-install-recommends \
+  docker-ce-cli \
+  && groupadd -f docker \
+  && usermod -aG docker abc \
+  && rm -rf /var/lib/apt/lists/* \
+  && mkdir -p /usr/local/bin /config /etc/services.d/backupbot
 
-# Create directories for backup scripts and logs
-RUN mkdir -p /usr/local/bin /config/log /config/web /etc/services.d/backupbot
-
-# Copy backup script
 COPY backup.sh /usr/local/bin/backup.sh
 RUN chmod +x /usr/local/bin/backup.sh
 
-# Copy the environment variables for the config
-COPY backupbot.env /defaults/backupbot.env
+# Copy the environment variables for backupbot
+COPY backupbot.conf /defaults/backupbot.conf
+RUN chown www-data:www-data /defaults/backupbot.conf \
+  && chmod 644 /defaults/backupbot.conf
 
 # Copy s6 service for backupbot
 COPY services/backupbot/run /etc/services.d/backupbot/run
 RUN chmod +x /etc/services.d/backupbot/run
 
 # Copy web frontend
-COPY web /defaults/web
-RUN chmod +x /defaults/web/cgi-bin/backupbot.cgi
+COPY web /app
+RUN chmod +x /app/cgi-bin/backupbot.cgi
+
 # Expose web frontend port
 EXPOSE 8080
 

LICENSE

@@ -1,18 +1,661 @@
-MIT License
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
 
-Copyright (c) 2025 calahil
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
-associated documentation files (the "Software"), to deal in the Software without restriction, including 
-without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
-copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the 
-following conditions:
+                            Preamble
 
-The above copyright notice and this permission notice shall be included in all copies or substantial 
-portions of the Software.
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
-LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO 
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+  Developers that use our General Public Licenses protect your rights
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+
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+
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+
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+
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+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -1,2 +1,265 @@
-# backupbot
+# BackupBot 🤖
 
+
+![Docker Image Version (tag)](https://img.shields.io/docker/v/calahil/backupbot/latest?arch=amd64&style=for-the-badge&logo=docker&logoColor=white&labelColor=blue&color=green)
+![Docker Pulls](https://img.shields.io/docker/pulls/calahil/backupbot?style=for-the-badge&logo=docker&logoColor=white&labelColor=blue&color=green)
+![Docker Stars](https://img.shields.io/docker/stars/calahil/backupbot?style=for-the-badge&logo=docker&logoColor=white&labelColor=blue&color=green)
+![GitHub License](https://img.shields.io/github/license/calahil/backupbot?style=for-the-badge&logo=docker&logoColor=white&labelColor=blue&color=green)
+![GitHub Release](https://img.shields.io/github/v/release/calahil/backupbot?display_name=release&style=for-the-badge&logo=github&labelColor=blue&color=green)
+
+
+> **Automated Docker backup system for PostgreSQL databases and application configurations with Duplicati integration**
+
+BackupBot is a comprehensive backup solution that automatically discovers and backs up PostgreSQL containers, creates btrfs snapshots of your application data, and provides a web-based configuration interface. Built on top of LinuxServer.io's Duplicati image, it combines database backups with flexible cloud storage options.
+
+---
+
+## ✨ Features
+
+- 🔍 **Auto-Discovery**: Automatically detects PostgreSQL containers by image patterns
+- 📊 **Multi-Database Support**: Backs up all databases within each PostgreSQL container using `pg_dumpall`
+- 📸 **Filesystem Snapshots**: Creates read-only btrfs snapshots of application data
+- 🔄 **Automated Scheduling**: Configurable backup times with retry logic
+- 🌐 **Web Interface**: Simple configuration UI accessible on port 8080
+- 🔔 **Gotify Integration**: Optional push notifications for backup failures
+- 🗄️ **Duplicati Integration**: Full access to Duplicati for cloud backup destinations
+- 🧹 **Retention Management**: Automatic cleanup of old backups based on retention policy
+- 🐳 **Docker-Native**: Designed to run in containerized environments
+
+---
+
+## 🚀 Quick Start
+
+### Prerequisites
+
+- Docker Engine 20.10+
+- Docker Compose 2.0+
+- Btrfs filesystem for snapshot functionality (optional but recommended)
+- Running PostgreSQL containers you want to back up
+
+### Installation
+
+1. **Clone the repository:**
+   ```bash
+   git clone https://gitea.calahilstudios.com/owner/backupbot.git
+   cd backupbot
+   ```
+
+2. **Start the container:**
+   ```bash
+   docker-compose up -d
+   ```
+
+3. **Access the interfaces:**
+   - BackupBot Config: http://localhost:8201
+   - Duplicati Web UI: http://localhost:8200
+
+---
+
+## 📋 Configuration
+
+### Environment Variables
+
+```env
+# Duplicati encryption key (required)
+KEY=your_encryption_key_here
+
+# Duplicati web password (required)
+PASSWORD=your_secure_password
+
+# User/Group IDs (optional)
+PUID=1000
+PGID=1000
+
+# Timezone (optional)
+TZ=America/Los_Angeles
+```
+
+### BackupBot Configuration
+
+BackupBot settings are managed through the web interface at `http://localhost:8201` or via the config file at `/config/backupbot.conf`:
+
+```bash
+TZ=America/Los_Angeles
+BACKUP_DIR=/backups/postgres
+LOG_FILE=/config/log/pgbackup.log
+MAX_RETRIES=3
+GOTIFY_URL=http://gotify.example.com
+GOTIFY_TOKEN=your_gotify_token_here
+BACKUP_HOUR=03
+BACKUP_MINUTE=00
+RETENTION_DAYS=7
+```
+
+### Supported PostgreSQL Images
+
+BackupBot automatically detects containers running these images:
+
+- `postgres:17.0-alpine`
+- `postgres:17`
+- `postgres:14.0-alpine`
+- `postgres` (any version)
+- `ghcr.io/immich-app/postgres:*`
+
+Additional patterns can be added by modifying the `KNOWN_IMAGES` list in `backup.sh`.
+
+---
+
+## 🗂️ Volume Mappings
+
+```yaml
+volumes:
+  # Duplicati configuration
+  - /path/to/duplicati/config:/config
+  
+  # Backup storage (where dumps are stored)
+  - /path/to/backups:/backups:rshared
+  
+  # Docker socket (for container discovery)
+  - /var/run/docker.sock:/var/run/docker.sock:ro
+  
+  # Source data for snapshots (optional)
+  - /path/to/appdata:/source:ro
+```
+
+---
+
+## 🔧 Usage
+
+### Manual Backup
+
+Trigger a backup manually:
+
+```bash
+docker exec backupbot /usr/local/bin/backup.sh
+```
+
+### View Logs
+
+Monitor backup operations:
+
+```bash
+docker logs -f backupbot
+```
+
+### Check Backup Files
+
+Backups are organized by container name:
+
+```bash
+ls -lh /backups/postgres_dumps/
+```
+
+Example structure:
+```
+/backups/
+├── postgres_dumps/
+│   ├── myapp_db/
+│   │   ├── 2024-10-23_03-00-00.sql
+│   │   └── 2024-10-24_03-00-00.sql
+│   └── another_db/
+│       └── 2024-10-23_03-00-00.sql
+└── snapshots/
+    ├── hostname-2024-10-23/
+    └── hostname-2024-10-24/
+```
+
+---
+
+## 🎯 How It Works
+
+1. **Discovery Phase**: BackupBot scans running Docker containers and identifies PostgreSQL instances
+2. **Extraction**: For each database, credentials are extracted from environment variables
+3. **Backup**: `pg_dumpall` creates a complete SQL dump of all databases
+4. **Snapshot**: A read-only btrfs snapshot is created of `/source`
+5. **Retention**: Old backups exceeding the retention period are automatically deleted
+6. **Notification**: On failure after retries, Gotify notifications are sent (if configured)
+
+---
+
+## 🔐 Security Notes
+
+- **Privileged Mode**: Required for btrfs snapshot functionality
+- **Docker Socket**: Read-only access needed for container discovery
+- **Credentials**: Database passwords are extracted from container environment variables
+- **Network**: BackupBot runs in bridge mode by default
+
+### Best Practices
+
+- Use strong encryption keys for Duplicati
+- Restrict access to the web interfaces using a reverse proxy with authentication
+- Regularly test backup restoration procedures
+- Store encryption keys securely outside the container
+
+---
+
+## 📊 Monitoring
+
+### Web Interfaces
+
+- **BackupBot Config**: `http://localhost:8201`
+  - Configure backup schedules
+  - Set retention policies
+  - Manage Gotify notifications
+
+- **Duplicati**: `http://localhost:8200`
+  - Configure cloud storage destinations
+  - Schedule remote backups
+  - Restore from backups
+
+### Log Levels
+
+Set via `BACKUPBOT_WEB_LOGGING` environment variable:
+- `DEBUG`: Verbose logging with exception traces
+- `INFO`: Standard operational logs (default)
+- `WARN`: Warnings and errors only
+
+---
+
+## 🤝 Contributing
+
+Contributions are welcome! Please feel free to submit a Pull Request.
+
+1. Fork the repository
+2. Create your feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit your changes (`git commit -m 'Add some amazing feature'`)
+4. Push to the branch (`git push origin feature/amazing-feature`)
+5. Open a Pull Request on Github
+
+---
+
+## 📝 License
+
+This project is licensed under the GNU Affero General Public License v3.0 - see the [LICENSE](LICENSE) file for details.
+
+---
+
+## 🙏 Acknowledgments
+
+- Built on [LinuxServer.io Duplicati](https://github.com/linuxserver/docker-duplicati)
+- PostgreSQL backup functionality inspired by community best practices
+- Web interface uses vanilla JavaScript for minimal dependencies
+
+---
+
+## 📞 Support
+
+- 🐛 **Issues**: [Report bugs on Github](https://github.com/calahil/backupbot/issues)
+- 📚 **Documentation**: This README and inline code comments
+- 💬 **Discussions**: Open an issue for questions
+
+---
+
+## 🗺️ Roadmap
+
+- [ ] MySQL/MariaDB support
+- [ ] MongoDB backup integration
+- [ ] Advanced scheduling options (multiple backup windows)
+- [ ] Backup verification and integrity checks
+- [ ] Prometheus metrics export
+- [ ] Email notifications
+- [ ] Backup compression options
+
+---
+
+**Made by Calahil Studios**

backup.sh

@@ -4,7 +4,6 @@
 # Author: Calahil Studios
 
 # === CONFIGURATION ===
-LOG_FILE="$1"
 BACKUP_DIR="/backups/postgres_dumps"
 RETENTION_DAYS="${RETENTION_DAYS:-7}" # Keep 7 days of backups
 
@@ -19,12 +18,12 @@ ghcr.io/immich-app/postgres:14-vectorchord0.4.3-pgvectors0.2.0
 EOF
 )
 
-echo "[BACKUPBOT_INFO] Starting PostgreSQL backup service..." | tee -a "$LOG_FILE"
+echo "[BACKUPBOT_INFO] Starting PostgreSQL backup service..."
 mkdir -p "$BACKUP_DIR"
 
 TIMESTAMP=$(date +'%Y-%m-%d_%H-%M-%S')
-echo "[BACKUPBOT_INFO] $(date) - Starting backup cycle ($TIMESTAMP)" | tee -a "$LOG_FILE"
-echo "[BACKUPBOT_INFO] Checking for running Postgres containers..." | tee -a "$LOG_FILE"
+echo "[BACKUPBOT_INFO] $(date) - Starting backup cycle ($TIMESTAMP)"
+echo "[BACKUPBOT_INFO] Checking for running Postgres containers..."
 
 # Find running containers matching known image names
 MATCHING_CONTAINERS=$(
@@ -41,7 +40,7 @@ MATCHING_CONTAINERS=$(
 )
 
 if [ -z "$MATCHING_CONTAINERS" ]; then
-  echo "[BACKUPBOT_WARN] No Postgres containers found." | tee -a "$LOG_FILE"
+  echo "[BACKUPBOT_WARN] No Postgres containers found."
 else
   for container in $MATCHING_CONTAINERS; do
     NAME=$(docker inspect --format '{{.Name}}' "$container" | sed 's#^/##')
@@ -54,16 +53,16 @@ else
     PG_USER=$(docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$container" | grep POSTGRES_USER | cut -d= -f2)
     PG_PASS=$(docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$container" | grep POSTGRES_PASSWORD | cut -d= -f2)
     if docker exec -e PGPASSWORD="$PG_PASS" "$container" pg_dumpall -U "$PG_USER" -h 127.0.0.1 >"$FILE" 2>/tmp/pg_backup_error.log; then
-      echo "[BACKUPBOT_SUCCESS] Backup complete for $NAME -> $FILE" | tee -a "$LOG_FILE"
+      echo "[BACKUPBOT_SUCCESS] Backup complete for $NAME -> $FILE"
     else
-      echo "[BACKUPBOT_ERROR] Backup failed for $NAME (check /tmp/pg_backup_error.log)" | tee -a "$LOG_FILE"
+      echo "[BACKUPBOT_ERROR] Backup failed for $NAME (check /tmp/pg_backup_error.log)"
     fi
     # Retention cleanup
     find "$CONTAINER_BACKUP_DIR" -type f -mtime +$RETENTION_DAYS -name '*.sql' -delete
   done
 fi
 
-echo "[BACKUPBOT_INFO] Creating a snapshot of /srv/appdata" | tee -a "$LOG_FILE"
+echo "[BACKUPBOT_INFO] Creating a snapshot of /srv/appdata"
 btrfs subvolume snapshot -r /source/appdata /backups/snapshots/$(hostname)-$(date +%F)
 
-echo "[BACKUPBOT_INFO] Backup cycle complete." | tee -a "$LOG_FILE"
+echo "[BACKUPBOT_INFO] Backup cycle complete."

backupbot.conf

@@ -6,3 +6,4 @@ GOTIFY_URL=http://gotify.example.com
 GOTIFY_TOKEN=your_gotify_token_here
 BACKUP_HOUR=03
 BACKUP_MINUTE=00
+BACKUPBOT_WEB_LOGGING=DEBUG

docker-compose.yml

@@ -1,20 +1,20 @@
 services:
   backupbot:
-    image: gitea.calahilstudios.com/calahil/backupbot:latest
+    build: .
     container_name: backupbot
     privileged: true
     environment:
-      - PUID=0
-      - PGID=0
-      - TZ=America/Los_Angeles
+      - PUID=1000
+      - PGID=1000
+      - TZ=Etc/UTC
       - SETTINGS_ENCRYPTION_KEY=${KEY}
       - CLI_ARGS= #optional
       - DUPLICATI__WEBSERVICE_PASSWORD=${PASSWORD}
     volumes:
       # Config dir for duplicati
       - /srv/appdata/duplicati/config:/config
-      # Backup folder to store dumps/backups/snapshots
-      - /srv/backups:/backups
+      # Backup folder to store dumps/backups
+      - /srv/backups:/backups:rshared
       # Docker socket to list containers
       - /var/run/docker.sock:/var/run/docker.sock:ro
     ports:

services/backupbot/run

@@ -1,15 +1,15 @@
 #!/usr/bin/with-contenv bash
 set -e
 # Source env if available
-if [[ -f /config/backupbot.env ]]; then
+if [[ -f /config/backupbot.conf ]]; then
   set -a
-  source /config/backupbot.env
+  source /config/backupbot.conf
   set +a
 else
-  echo "[INFO] copying env vars from defaults..."
-  cp -r /defaults/backupbot.env /config/
+  echo "[INFO] copying config vars from defaults..."
+  cp -r /defaults/backupbot.conf /config/
   set -a
-  source /config/backupbot.env
+  source /config/backupbot.conf
   set +a
 fi
 # Initialize default web interface if missing
@@ -19,13 +19,12 @@ if [ ! -d /config/web ]; then
 fi
 
 # Start Python HTTP server for web config in background
-cd /config/web
-nohup python3 -m http.server 8080 --cgi >/config/log/web.log 2>&1 &
+cd /app
+
+nohup python3 -m http.server 8080 --cgi 2>&1 &
 
 # Start backup scheduler
 STATE_FILE="/config/last_backup_date"
-LOG_FILE="/config/log/pgbackup.log"
-mkdir -p "$(dirname "$STATE_FILE")" "$(dirname "$LOG_FILE")"
 
 # TZ
 : "${TZ:=UTC}"
@@ -50,7 +49,7 @@ run_backup() {
   local attempt=1
   while ((attempt <= RETRIES)); do
     echo "[INFO] Backup attempt $attempt"
-    if /usr/local/bin/backup.sh "$LOG_FILE"; then
+    if /usr/local/bin/backup.sh; then
       echo "[SUCCESS] Backup completed"
       return 0
     else

web/cgi-bin/backupbot.cgi

@@ -3,34 +3,87 @@ import cgi
 import cgitb
 import os
 import json
-from pathlib import Path
+import sys
+import traceback
+import tempfile
 
 cgitb.enable()
-
-ENV_FILE = Path("/config/backupbot.env")
 print("Content-Type: application/json\n")
 
+ENV_FILE = "/config/backupbot.conf"
+ZONEINFO_DIR = "/usr/share/zoneinfo"
+
+# Logging level from environment
+LOG_LEVEL = os.environ.get("BACKUPBOT_WEB_LOGGING", "info").lower()
+LOG_LEVELS = {"debug": 3, "info": 2, "warn": 1}
+
+
+def log(level, message, exc=None):
+    """
+    Docker-friendly logging.
+    level: "debug", "info", "warn"
+    exc: exception object (only used in debug)
+    """
+    if LOG_LEVELS.get(level, 0) <= LOG_LEVELS.get(LOG_LEVEL, 0):
+        timestamp = (
+            __import__("datetime")
+            .datetime.now()
+            .strftime(
+                "%Y-%m-%d \
+                                                                    %H:%M:%S"
+            )
+        )
+        msg = f"[{timestamp}] [{level.upper()}] {message}"
+        print(msg, file=sys.stderr)
+        if exc and LOG_LEVEL == "debug":
+            traceback.print_exception(
+                type(exc), exc, exc.__traceback__, file=sys.stderr
+            )
+
 
 def read_env():
     env = {}
-    if ENV_FILE.exists():
-        with ENV_FILE.open() as f:
-            for line in f:
-                line = line.strip()
-                if not line or line.startswith("#") or "=" not in line:
-                    continue
-                key, val = line.split("=", 1)
-                env[key.strip()] = val.strip().split("#")[0].strip()
+    if os.path.exists(ENV_FILE):
+        try:
+            with open(ENV_FILE) as f:
+                for line in f:
+                    line = line.strip()
+                    if not line or "=" not in line:
+                        continue
+                    key, val = line.split("=", 1)
+                    env[key.strip()] = val.strip()
+        except Exception as e:
+            log("warn", f"Failed to read config: {e}", e)
     return env
 
 
 def write_env(env):
-    # Rotate the old env file just in case
-    if ENV_FILE.exists():
-        ENV_FILE.replace(ENV_FILE.with_suffix(".env.bak"))
-    with ENV_FILE.open("w") as f:
-        for key, val in env.items():
-            f.write(f"{key}={val}\n")
+    try:
+        dir_name = os.path.dirname(ENV_FILE)
+        os.makedirs(dir_name, exist_ok=True)
+        # Write atomically to temp file
+        with tempfile.NamedTemporaryFile("w", dir=dir_name, delete=False) as tmp:
+            for key, val in env.items():
+                tmp.write(f"{key}={val}\n")
+            temp_name = tmp.name
+        os.replace(temp_name, ENV_FILE)
+        log("info", f"Configuration saved to {ENV_FILE}")
+    except Exception as e:
+        log("warn", f"Failed to write config: {e}", e)
+        raise
+
+
+def list_timezones():
+    zones = []
+    for root, _, files in os.walk(ZONEINFO_DIR):
+        rel_root = os.path.relpath(root, ZONEINFO_DIR)
+        if rel_root.startswith(("posix", "right")):
+            continue
+        for file in files:
+            if file.startswith(".") or file.endswith((".tab", ".zi")):
+                continue
+            zones.append(os.path.join(rel_root, file) if rel_root != "." else file)
+    return sorted(zones)
 
 
 form = cgi.FieldStorage()
@@ -38,13 +91,25 @@ action = form.getvalue("action")
 
 try:
     if action == "get":
-        print(json.dumps(read_env()))
+        env = read_env()
+        log("debug", f"Returning configuration: {env}")
+        print(json.dumps(env))
     elif action == "set":
-        length = int(os.environ.get("CONTENT_LENGTH", "0"))
+        raw_len = os.environ.get("CONTENT_LENGTH")
+        length = int(raw_len) if raw_len else 0
         data = json.loads(os.read(0, length))
-        write_env(data)
+        log("debug", f"Received new configuration: {data}")
+        env = read_env()
+        env.update(data)  # update existing keys, add new keys
+        write_env(env)
         print(json.dumps({"status": "ok", "message": "Configuration saved."}))
+    elif action == "get_timezones":
+        zones = list_timezones()
+        log("debug", f"Returning {len(zones)} timezones")
+        print(json.dumps({"timezones": zones}))
     else:
+        log("warn", f"Invalid action requested: {action}")
         print(json.dumps({"status": "error", "message": "Invalid action"}))
 except Exception as e:
+    log("warn", f"Unhandled exception: {e}", e)
     print(json.dumps({"status": "error", "message": str(e)}))

web/index.html

@@ -32,13 +32,17 @@
 
   <form id="configForm">
     <label>Timezone:
-      <input type="text" name="TZ">
+      <select id="tzSelect" name="TZ">
+        <option value="">Loading...</option>
+      </select>
     </label>
     <label>Backup Directory:
-      <input type="text" name="BACKUP_DIR">
+      <input type="text" name="BACKUP_DIR" id="backupDir" placeholder="/backups">
+      <button type="button" onclick="chooseBackupDir()">Browse</button>
     </label>
     <label>Log File:
-      <input type="text" name="LOG_FILE">
+      <input type="text" name="LOG_FILE" id="logDir" placeholder="/config/log">
+      <button type="button" onclick="chooseLogDir()">Browse</button>
     </label>
     <label>Backup Hour:
       <input type="number" name="BACKUP_HOUR" min="0" max="23">
@@ -61,6 +65,29 @@
   <p id="status"></p>
 
   <script>
+    async function loadTimezones() {
+      const res = await fetch('/cgi-bin/backupbot.cgi?action=get_timezones');
+      const data = await res.json();
+      const select = document.getElementById('tzSelect');
+      select.innerHTML = '';
+      data.timezones.forEach(tz => {
+        const opt = document.createElement('option');
+        opt.value = tz;
+        opt.textContent = tz;
+        select.appendChild(opt);
+      });
+    }
+
+    function chooseBackupDir() {
+      const base = prompt("Enter or confirm your backup directory path:", "/backups");
+      if (base) document.getElementById('backupDir').value = base;
+    }
+
+    function chooseLogDir() {
+      const base = prompt("Enter or confirm your log directory path:", "/config/log");
+      if (base) document.getElementById('logDir').value = base;
+    }
+
     async function loadConfig() {
       const res = await fetch('/cgi-bin/backupbot.cgi?action=get');
       const data = await res.json();
@@ -84,7 +111,7 @@
     }
 
     document.getElementById('configForm').addEventListener('submit', saveConfig);
-    loadConfig();
+    loadTimezones().then(loadConfig);
   </script>
 </body>