Revert "ci: remove setup.sh"

This reverts commit e203229f00.

.github/workflows/scripts/setup.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -eu
+
+id
+
+df -h
+
+sudo systemd-run --wait rm -rf \
+     /usr/share/az* \
+     /usr/share/dotnet \
+     /usr/share/gradle* \
+     /usr/share/miniconda \
+     /usr/share/swift \
+     /var/lib/gems \
+     /var/lib/mysql \
+     /var/lib/snapd \
+     /opt/hostedtoolcache/CodeQL \
+     /opt/hostedtoolcache/Java_Temurin-Hotspot_jdk
+
+sudo fstrim /
+
+df -h

.github/workflows/ubuntu.yml

@@ -65,6 +65,9 @@ jobs:
     - uses: actions/checkout@v1
     - uses: actions/setup-go@v5
 
+    - name: Setup
+      run: .github/workflows/scripts/setup.sh
+
     - name: Build
       run: go build
 
@@ -138,9 +141,38 @@ jobs:
           ]
 
     steps:
+      - name: Backup docker files
+        run: |
+          echo "backup moby/buildkit image"
+          sudo docker image save -o ${GITHUB_WORKSPACE}/images.tar moby/buildkit
+          echo "prune docker"
+          sudo docker system prune -a -f
+          echo "back up /var/lib/docker folder structure and other files"
+          sudo rsync -aPq /var/lib/docker/ ${GITHUB_WORKSPACE}/docker
+
+      - name: Maximize build space
+        uses: easimon/maximize-build-space@master
+        with:
+          overprovision-lvm: 'true'
+          remove-dotnet: 'true'
+          # instead of using default value to mount to build path,
+          # /var/lib/docker/ is really the place we need more spaces.
+          build-mount-path: '/var/lib/docker/'
+
+      - name: Restore docker files
+        run: |
+          sudo rsync -aPq ${GITHUB_WORKSPACE}/docker/ /var/lib/docker
+          sudo rm -rf ${GITHUB_WORKSPACE}/docker
+          sudo ls ${GITHUB_WORKSPACE} -l
+          sudo docker image load -i ${GITHUB_WORKSPACE}/images.tar
+          sudo rm ${GITHUB_WORKSPACE}/images.tar
+
       - uses: actions/checkout@v1
       - uses: actions/setup-go@v5
 
+      - name: Setup
+        run: .github/workflows/scripts/setup.sh
+
       - name: Build
         run: go build