Run the Go Validator as a Linux Service

Create a home directory for the validator and download the pre-built amd64 binary.

mkdir -p ~/autobattle
cd ~/autobattle
curl -sL https://autobattle.online/shell/validate_linux_amd64 -o validate
chmod +x validate

Verify it works before proceeding:

./validate --help

Save your key in a plain file so the service can read it without it appearing in process listings. Get your key from your profile page.

echo "YOUR_API_KEY" > ~/autobattle/api_key
chmod 600 ~/autobattle/api_key

The service will call this script every 10 minutes. It reads the key file and runs the validator.

cat > ~/autobattle/run.sh <<'EOF'
#!/usr/bin/env bash
set -euo pipefail
KEY=$(cat ~/autobattle/api_key)
exec ~/autobattle/validate --key "$KEY"
EOF
chmod +x ~/autobattle/run.sh

Two unit files are needed: a service (what to run) and a timer (when to run it). Copy and paste both blocks below. Replace YOUR_USERNAME with your actual Linux username (whoami).

Service file — /etc/systemd/system/autobattle-validator.service

[Unit]
Description=AutoBattle cohort validator
After=network-online.target
Wants=network-online.target

[Service]
Type=oneshot
User=YOUR_USERNAME
ExecStart=/home/YOUR_USERNAME/autobattle/run.sh
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target

Timer file — /etc/systemd/system/autobattle-validator.timer

[Unit]
Description=Run AutoBattle validator every 10 minutes
Requires=autobattle-validator.service

[Timer]
OnBootSec=2min
OnUnitActiveSec=10min
AccuracySec=30s

[Install]
WantedBy=timers.target

Write the files (requires sudo):

sudo nano /etc/systemd/system/autobattle-validator.service
sudo nano /etc/systemd/system/autobattle-validator.timer

sudo systemctl daemon-reload
sudo systemctl enable --now autobattle-validator.timer

The validator will run once 2 minutes after boot, then every 10 minutes automatically.

Run it manually right now to verify:

sudo systemctl start autobattle-validator.service

View the output:

journalctl -u autobattle-validator.service -n 50 --no-pager

Check the timer schedule:

systemctl list-timers autobattle-validator.timer

The validator checks for a newer version on every run. If an update is available it downloads the new binary, replaces itself, and continues — no action needed on your part.

You can confirm the running version at any time:

~/autobattle/validate --version