# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

name: Setup E2E VM
description: Configure a bare Linux KVM host for VM E2E tests

inputs:
  mise-version:
    description: mise release to install
    required: false
    default: v2026.9.9
  rust-cache-key:
    description: Shared key for Rust test artifacts
    required: false
    default: e2e-vm-linux-amd64

runs:
  using: composite
  steps:
    - name: Install system dependencies
      shell: bash
      run: |
        sudo apt-get update
        sudo apt-get install -y --no-install-recommends \
          build-essential \
          libssl-dev \
          openssh-client \
          pkg-config \
          socat \
          zstd

    - name: Enable KVM access
      shell: bash
      run: |
        set -euo pipefail
        if [[ ! -c /dev/kvm ]]; then
          echo "::error::The GitHub-hosted runner did not expose /dev/kvm"
          lscpu
          grep -m1 -E '^(flags|Features)' /proc/cpuinfo || true
          ls -la /dev
          exit 1
        fi
        echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' \
          | sudo tee /etc/udev/rules.d/99-kvm4all.rules
        sudo udevadm control --reload-rules
        sudo udevadm trigger --settle --name-match=kvm
        ls -l /dev/kvm
        exec 3<>/dev/kvm
        exec 3>&-

    - name: Validate VM host tools
      shell: bash
      run: |
        command -v mke2fs
        command -v mkfs.ext4
        command -v debugfs

    - uses: ./.github/actions/setup-mise
      with:
        version: ${{ inputs.mise-version }}

    - name: Cache Rust target and registry
      uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
      with:
        shared-key: ${{ inputs.rust-cache-key }}
        cache-on-failure: "true"