chore: Custom GitHub runner image with Unreal docker pre-installed

.github/workflows/custom-image-android.yml

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+name: Build UE Android runner image
+
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6 * * 1'
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  create-image:
+    name: Create Android image with UE Docker images
+    runs-on: unreal-image-creating-runner-linux
+    snapshot: unreal-image-android
+
+    permissions:
+      contents: read
+      packages: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+
+      - name: Free up disk space
+        run: ./scripts/clean-storage-linux.sh
+
+      - name: Log in to GitHub package registry
+        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Android images carry the Android SDK/NDK platform files and are large, so the set is limited to
+      # the versions Android is actually tested on (5.4+). Add '5.8' here once its image is published.
+      - name: Pull Unreal Engine Docker images
+        run: |
+          set -e
+          tags=("5.4" "5.5" "5.6" "5.7")
+          for tag in "${tags[@]}"; do
+            echo "=== Pulling ${{ env.REGISTRY }}/getsentry/unreal-docker:${tag}-android ==="
+            docker pull "${{ env.REGISTRY }}/getsentry/unreal-docker:${tag}-android"
+            echo "=== Free disk space after pulling ${tag}-android ==="
+            df -h /
+          done
+
+      - name: Verify pulled images
+        run: |
+          docker images --filter "reference=${{ env.REGISTRY }}/getsentry/unreal-docker" --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}"

.github/workflows/custom-image-linux.yml

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+name: Build UE Linux runner image
+
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6 * * 1'
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  create-image:
+    name: Create Linux image with UE Docker images
+    runs-on: unreal-image-creating-runner-linux
+    snapshot: unreal-image-linux
+
+    permissions:
+      contents: read
+      packages: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+
+      - name: Free up disk space
+        run: ./scripts/clean-storage-linux.sh
+
+      - name: Log in to GitHub package registry
+        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Pull Unreal Engine Docker images
+        run: |
+          set -e
+          tags=("4.27" "5.2" "5.3" "5.4" "5.5" "5.6" "5.7")
+          for tag in "${tags[@]}"; do
+            echo "=== Pulling ${{ env.REGISTRY }}/getsentry/unreal-docker:${tag}-linux ==="
+            docker pull "${{ env.REGISTRY }}/getsentry/unreal-docker:${tag}-linux"
+            echo "=== Free disk space after pulling ${tag}-linux ==="
+            df -h /
+          done
+
+      - name: Verify pulled images
+        run: |
+          docker images --filter "reference=${{ env.REGISTRY }}/getsentry/unreal-docker" --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}"

.github/workflows/custom-image-windows.yml

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+name: Build UE Windows runner image
+
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6 * * 1'
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  create-image:
+    name: Create Windows image with UE Docker images
+    runs-on: unreal-image-creating-runner-windows
+    snapshot: unreal-image-windows
+
+    permissions:
+      contents: read
+      packages: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+
+      - name: Free up disk space
+        shell: pwsh
+        run: ./scripts/clean-storage-win.ps1
+
+      - name: Log in to GitHub package registry
+        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Pull Unreal Engine Docker images
+        shell: pwsh
+        run: |
+          $tags = @('4.27', '5.5', '5.6', '5.7')
+          foreach ($tag in $tags) {
+            Write-Host "=== Pulling ${{ env.REGISTRY }}/getsentry/unreal-docker:$tag ==="
+            docker pull "${{ env.REGISTRY }}/getsentry/unreal-docker:$tag"
+            if ($LASTEXITCODE -ne 0) {
+              Write-Error "Failed to pull image for tag $tag"
+              exit 1
+            }
+            Write-Host "=== Free disk space after pulling $tag ==="
+            Get-PSDrive -PSProvider FileSystem | Format-Table -AutoSize Name, @{Name='Used(GB)';Expression={[math]::Round($_.Used/1GB,2)}}, @{Name='Free(GB)';Expression={[math]::Round($_.Free/1GB,2)}}
+          }
+
+      - name: Verify pulled images
+        run: |
+          docker images --filter "reference=${{ env.REGISTRY }}/getsentry/unreal-docker" --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}"

scripts/clean-storage-linux.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+print_space_freed() {
+    local step_name="$1"
+    local current_space
+    current_space=$(df -BM --output=avail / | tail -1 | tr -dc '0-9')
+    local freed=$((current_space - last_reported_space))
+    local freed_gb
+    local current_gb
+    freed_gb=$(awk "BEGIN { printf \"%.2f\", $freed / 1024 }")
+    current_gb=$(awk "BEGIN { printf \"%.2f\", $current_space / 1024 }")
+    echo "After $step_name - Freed: ${freed_gb} GB, Current free space: ${current_gb} GB"
+    last_reported_space=$current_space
+    total_freed=$((total_freed + freed))
+}
+
+initial_space=$(df -BM --output=avail / | tail -1 | tr -dc '0-9')
+last_reported_space=$initial_space
+total_freed=0
+
+initial_gb=$(awk "BEGIN { printf \"%.2f\", $initial_space / 1024 }")
+echo "Initial free space: ${initial_gb} GB"
+
+sudo swapoff -a || true
+sudo rm -f /swapfile
+print_space_freed "Swap removal"
+
+sudo rm -rf /usr/local/lib/android
+print_space_freed "Android SDK removal"
+
+sudo rm -rf /usr/share/dotnet
+print_space_freed ".NET removal"
+
+sudo rm -rf /usr/share/swift
+print_space_freed "Swift removal"
+
+sudo rm -rf /usr/local/share/powershell
+print_space_freed "PowerShell removal"
+
+sudo rm -rf /usr/local/.ghcup
+sudo rm -rf /opt/ghc
+print_space_freed "Haskell removal"
+
+sudo rm -rf /usr/local/lib/node_modules
+print_space_freed "Node modules removal"
+
+sudo rm -rf /usr/local/share/boost
+print_space_freed "Boost removal"
+
+sudo rm -rf /usr/lib/google-cloud-sdk
+print_space_freed "Google Cloud SDK removal"
+
+sudo rm -rf /usr/lib/jvm
+print_space_freed "JVM removal"
+
+sudo rm -rf /opt/pipx
+print_space_freed "pipx removal"
+
+if [[ -n "${AGENT_TOOLSDIRECTORY:-}" ]]; then
+    sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+    print_space_freed "Agent toolcache removal"
+fi
+
+sudo apt-get clean
+sudo rm -rf /var/lib/apt/lists/*
+print_space_freed "APT cleanup"
+
+final_space=$(df -BM --output=avail / | tail -1 | tr -dc '0-9')
+final_gb=$(awk "BEGIN { printf \"%.2f\", $final_space / 1024 }")
+total_freed_gb=$(awk "BEGIN { printf \"%.2f\", $total_freed / 1024 }")
+
+echo "Initial free space: ${initial_gb} GB"
+echo "Final free space: ${final_gb} GB"
+echo "Total space gained: ${total_freed_gb} GB"