gitlab-runner clear cache script

clearCache.sh

#!/bin/bash

#Variables
gitlabUrl="https://gitlab.yourdomain.com"
configFile="/etc/gitlab-runner/config.toml"
gitlabTolken="" # Get it from https://gitlabUrl/profile/account API read access token

# Get GitLab Runner tokens from config.toml
mapfile -t runner_tokens < <(sudo grep -oP 'token = "\K[^"]+' ${configFile})

# Check if any GitLab Runner is busy
check_busy() {
  for token in "${runner_tokens[@]}"; do
    runner_status=$(curl --silent --header "PRIVATE-TOKEN: ${gitlabTolken}" "${gitlabUrl}/api/v4/runners?token=${token}" | jq '.[].status')
    if [ "$runner_status" == "\"running\"" ]; then
      return 0
    fi
  done
  return 1
}

# Wait for all GitLab Runners to finish
while check_busy; do
  echo "One or more GitLab Runners are busy, waiting for them to finish..."
  sleep 60
done

# Stop all GitLab Runners
echo "Stopping all GitLab Runners..."
sudo gitlab-runner stop

# Prune Docker system
echo "Pruning Docker system..."
sudo docker system prune -a -f --volumes

# Remove contents of /var/lib/docker/overlay2
echo "Cleaning /var/lib/docker/overlay2 folder..."
sudo rm -rf /var/lib/docker/overlay2/*

# Start all GitLab Runners
echo "Starting all GitLab Runners..."
sudo gitlab-runner start

echo "Cache cleaning completed."