Ubuntu Runner Disk Cleanup Script - Github Workflow Actions

your-workflow.yml

name: Build_x86_64

on: 
  push:
    branches: 
      - master

jobs:
  build:
    runs-on: ubuntu-18.04

    steps :

    - name: Disk Space cleanup 
      env:
          DEBIAN_FRONTEND: noninteractive
      run: |
          sudo -E apt-get update
          docker rmi `docker images -q`
          sudo rm -rf /usr/share/dotnet /etc/mysql /etc/php /etc/apt/sources.list.d
          sudo -E apt-get -y purge azure-cli ghc* zulu* hhvm llvm* firefox google* dotnet* powershell openjdk* mysql* php*
          sudo -E apt-get -y autoremove --purge
          sudo -E apt-get clean
          echo "======================="
          echo "Space usage:"
          df -h

50G is available for runner, which should be sufficient for most jobs.

=======================
Space usage:
Filesystem Size Used Avail Use% Mounted on
udev 3.4G 0 3.4G 0% /dev
tmpfs 693M 928K 692M 1% /run
/dev/sda1 84G 34G 50G 41% /
tmpfs 3.4G 8.0K 3.4G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.4G 0 3.4G 0% /sys/fs/cgroup
/dev/loop0 40M 40M 0 100% /snap/hub/43
/dev/loop1 94M 94M 0 100% /snap/core/9066
/dev/sda15 105M 3.6M 101M 4% /boot/efi
/dev/sdb1 14G 41M 13G 1% /mnt

Right now, the GitHub-hosted runners only have 14GB of disk space available , making it insufficient to build larger projects without resorting to using a self-hosted runner

But we can remove unused packages and folder to save disk size for our jobs.