AREDN Firmware Sync Script

This script mirrors the AREDN firmware repository, patches the firmware site config to use a local mesh URL, and regenerates JSON indexes. See Creating a Local AREDN® Software Server. This script was designed for use by Disaster Response Communications & Information Technology (DRCIT) but is freely reusable by other hams/groups.

---

🚀 Quick Start (5 minutes)

# 1. Clone this repo
git clone https://drcit.dev/DRCIT/aredn.git
cd aredn

# 2. Edit aredn_sync.sh variables for your node
nano aredn_sync.sh   # set ROOT, LOG, NEW_URL

# 3. Make it executable
chmod +x aredn_sync.sh

# 4. Test once manually (Below assumes you placed it in the ~/.local/bin folder).
~/.local/bin/aredn_sync.sh

# 5. Add cron (every 4 hours, as local user part of the docker group)
crontab -e
# add this line:
0 */4 * * * ~/.local/bin/sync.sh >> ~/.local/logs/aredn.log 2>&1

# 6. Add logrotate rule
sudo tee /etc/logrotate.d/aredn-sync <<'EOF'
su <user> <group>
/<home path>/.local/logs/aredn.log {
    daily
    rotate 7
    compress
    delaycompress
    missingok
    notifempty
    create 0640 <user> <group>
}
EOF

Done ✅ — your mirror will now stay up to date automatically. Replace and with actual user & group (usually drcit drcit), and replace any with the correct absolute path (e.g. /home/drcit/.local/logs/aredn.log)

---

🔧 How it works

1. Sync: runs rsync to mirror upstream firmware files into $ROOT.
2. Patch: replaces the default firmware URL in afs/www/config.js with your local mesh URL ($NEW_URL).
3. Collect: runs afs/misc/collect.py to regenerate JSON indexes.
4. Log: everything is written to ~/.local/logs/aredn.log.

---

⚙️ Variables to Edit

At the top of sync.sh, adjust these for your environment:

ROOT="$HOME/<path to root folder>/aredn"  # mirror root
AFS="$ROOT/afs"                                   # firmware site files
LOG="$HOME/.local/logs/aredn.log"                 # log path
UPSTREAM="downloads.arednmesh.org::aredn_firmware" # rsync source
NEW_URL="http://n2drc-ls1.local.mesh/"           # mesh URL to inject

Replace any with the correct path (e.g. "$HOME/docker/fileserver/files/aredn").

---

📅 Cron Job

To keep your mirror current, run the script daily:

0 0 * * * ~/aredn/sync.sh >> ~/.local/logs/aredn.log 2>&1

---

📂 Log Rotation

To prevent logs from growing indefinitely, add /etc/logrotate.d/aredn-sync:

su <user> <group>
/<home path>/.local/logs/aredn.log {
    daily
    rotate 7
    compress
    delaycompress
    missingok
    notifempty
    create 0640 <user> <group>
}

This rotates logs daily, keeps 7 days, and compresses older logs. Replace and with actual user & group (usually drcit drcit), and replace any with the correct absolute path (e.g. /home/drcit/.local/logs/aredn.log)

---

📜 License

This project is licensed under the MIT License.
You are free to use, modify, and share this script. Attribution to DRCIT is appreciated.