Auto clean Github runner

gh_runner_clean.md

#!/bin/bash

# Create the clean_runner.sh file
cat << 'EOF' > /home/actions-runner/clean_runner.sh
#!/bin/bash

# Check if any job is running
if pgrep -f "./run.sh" > /dev/null
then
    echo "A job is currently running. Skipping clean up process."
    exit 0
fi

# Start the clean up process
echo "Starting clean up process..."

# Clean work directory
rm -rf /home/actions-runner/_work/*

# Remove old builds and caches
rm -rf /home/actions-runner/_tool/*

# Delete old logs (older than 7 days)
find /home/actions-runner/_diag -name "*.log" -type f -mtime +7 -delete

# Clean Docker
docker system prune -af

# Clean npm cache
npm cache clean --force

# Clean pip cache
pip cache purge

# Remove unnecessary packages
apt-get autoremove -y
apt-get clean

# Clean /tmp directory
rm -rf /tmp/*

# Update runner
cd /home/actions-runner
./config.sh --check

# Restart runner service
systemctl restart actions.runner.*

# Free up disk space
fstrim -av

echo "Clean up process completed."
EOF

# Make the script executable
chmod +x /home/actions-runner/clean_runner.sh

# Create the cron job
(crontab -l 2>/dev/null; echo "0 4 * * * /home/actions-runner/clean_runner.sh >> /home/actions-runner/clean_runner.log 2>&1") | crontab -

echo "Cron job has been created to run the clean up script at 4 AM daily."

To use this script:

1. Save this script to a file, for example setup_clean_cron.sh.

2. Make the script executable:

   chmod +x setup_clean_cron.sh
   

3. Run the script with sudo privileges:

   sudo ./setup_clean_cron.sh
   

This script will:

• Create a clean_runner.sh file in the /home/actions-runner/ directory containing the clean up commands.
• Make clean_runner.sh executable.
• Create a cron job to run the clean up script at 4 AM daily.

Notes:

• The clean up script will check if any job is running before performing the clean up.
• The results of the clean up process will be logged to /home/actions-runner/clean_runner.log.
• Ensure that the user running the cron job has sufficient permissions to execute the commands in the script (especially those requiring sudo).
• You may need to adjust paths and specific commands depending on your system configuration.