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ci: add playground-test workflow
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‎.github/workflows/playground-test.yml‎

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name: playground-test
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on:
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workflow_dispatch:
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inputs:
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image-run-id:
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description: "Reuse image from a previous run (skip build). Leave empty to build fresh."
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type: string
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default: ""
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builder-playground-ref:
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description: "builder-playground git ref (branch/tag/sha)"
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default: "fryd/buildernet-improvements"
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type: string
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jobs:
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build:
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name: Build playground image
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if: inputs.image-run-id == ''
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runs-on: warp-ubuntu-2404-x64-32x
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timeout-minutes: 30
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steps:
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- uses: actions/checkout@v5
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- name: Install mkosi
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run: |
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sudo apt-get update && sudo apt-get install -y debian-archive-keyring
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pip3 install git+https://github.com/systemd/mkosi.git@$(cat .mkosi_version)
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- name: Enable user namespaces
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run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
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- name: Build image
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run: |
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umask 022
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mkosi --force -I buildernet.conf --profile="devtools,playground"
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- name: Show output
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run: |
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ls -lah mkosi.output/
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sha256sum mkosi.output/buildernet-qemu_*.qcow2
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- name: Upload image
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uses: actions/upload-artifact@v4
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with:
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name: buildernet-playground-image
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path: mkosi.output/buildernet-qemu_*.qcow2
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retention-days: 14
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test:
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name: Test playground image
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needs: build
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if: always() && (needs.build.result == 'success' || needs.build.result == 'skipped')
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runs-on: warp-ubuntu-2404-x64-32x
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timeout-minutes: 30
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env:
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PLAYGROUND_REF: ${{ inputs.builder-playground-ref }}
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steps:
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- name: Check runner environment
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run: |
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echo "--- CPU ---"
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nproc
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echo "--- Memory ---"
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free -h
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echo "--- Disk ---"
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df -h
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echo "--- KVM ---"
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ls -la /dev/kvm 2>/dev/null && echo "KVM available" || echo "KVM NOT available"
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echo "--- Docker ---"
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docker --version 2>/dev/null || echo "Docker not installed"
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- name: Download image
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uses: actions/download-artifact@v4
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with:
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name: buildernet-playground-image
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path: ./image
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run-id: ${{ inputs.image-run-id || github.run_id }}
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github-token: ${{ secrets.GITHUB_TOKEN }}
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- name: Verify image
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run: |
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ls -lah ./image/
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sha256sum ./image/*.qcow2
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- name: Install QEMU and OVMF
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run: |
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sudo apt-get update && sudo apt-get install -y \
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qemu-system-x86 ovmf jq unzip
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qemu-system-x86_64 --version
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- name: Set up Go
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uses: actions/setup-go@v5
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with:
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go-version: "1.25"
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- name: Clone and build builder-playground
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run: |
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git clone --depth 1 --branch "${PLAYGROUND_REF}" \
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https://github.com/flashbots/builder-playground.git
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cd builder-playground
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mkdir -p "$HOME/.local/bin"
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go build -o "$HOME/.local/bin/builder-playground" ./main.go
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echo "$HOME/.local/bin" >> "$GITHUB_PATH"
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- name: Verify builder-playground
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run: builder-playground version
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- name: Generate project
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run: |
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mkdir playground-workspace && cd playground-workspace
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builder-playground generate buildernet/mkosi
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echo "Generated files:"
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find . -type f | sort
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- name: Start playground
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env:
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BUILDERNET_IMAGE: ${{ github.workspace }}/image/buildernet-qemu_latest.qcow2
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QEMU_ACCEL: tcg
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QEMU_CPU: "4"
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QEMU_RAM: 8G
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run: |
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cd playground-workspace
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builder-playground start --detached playground.yaml
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- name: Wait for rbuilder RPC
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run: |
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WAIT_START=$(date +%s)
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WAIT_TIMEOUT=600
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echo "Waiting for rbuilder RPC on localhost:18645 (timeout: ${WAIT_TIMEOUT}s)..."
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while true; do
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if curl -sf -m 5 -X POST http://localhost:18645 \
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-H 'Content-Type: application/json' \
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-d '{"jsonrpc":"2.0","method":"net_version","params":[],"id":1}' > /dev/null 2>&1; then
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echo "rbuilder RPC ready after $(( $(date +%s) - WAIT_START ))s"
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break
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fi
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elapsed=$(( $(date +%s) - WAIT_START ))
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if [ "$elapsed" -ge "$WAIT_TIMEOUT" ]; then
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echo "Timed out after ${elapsed}s waiting for rbuilder RPC"
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exit 1
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fi
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echo " ${elapsed}s - not ready, retrying in 5s..."
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sleep 5
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done
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cd playground-workspace
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echo "--- console log (last 50 lines) ---"
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tail -50 .runtime/console.log || true
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- name: Run integration test
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run: |
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cd playground-workspace
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builder-playground test \
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--rpc http://localhost:18645 \
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--el-rpc http://localhost:8545 \
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--insecure \
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--expected-extra-data "Playground VM Builder ⚡🤖"
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- name: Debug info
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if: always()
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run: |
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cd playground-workspace 2>/dev/null || true
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echo "=== QEMU process ==="
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ps aux | grep qemu || echo "no qemu process"
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echo "=== .runtime/ directory ==="
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ls -lah .runtime/ 2>/dev/null || echo "no .runtime/ directory"
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echo "=== QEMU console log ==="
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cat .runtime/console.log 2>/dev/null || echo "no console.log"
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echo "=== QEMU PID file ==="
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cat .runtime/qemu.pid 2>/dev/null || echo "no qemu.pid"
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echo "=== Playground session logs ==="
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SESSION_DIR=$(ls -td ~/.local/state/builder-playground/sessions/*/ 2>/dev/null | head -1)
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if [ -n "$SESSION_DIR" ]; then
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echo "Session dir: $SESSION_DIR"
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find "$SESSION_DIR/logs" -type f 2>/dev/null | while read -r f; do
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echo "--- ${f#$SESSION_DIR/logs/} ---"
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cat "$f"
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done
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else
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echo "no session directory found"
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fi
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echo "=== VM service logs (via operator-api) ==="
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curl -sk https://localhost:13535/logs 2>/dev/null || echo "operator-api not reachable"
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echo "=== Docker containers ==="
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docker ps -a 2>/dev/null || true
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echo "=== Disk ==="
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df -h
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- name: Cleanup
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if: always()
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run: |
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cd playground-workspace 2>/dev/null || true
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builder-playground clean all 2>/dev/null || true

‎mkosi.images/buildernet/mkosi.extra/usr/bin/fetch-gh-release-artifact‎

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release_url=$(
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curl -fsSL -H 'Accept: application/vnd.github+json' \
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"${common_headers[@]}" \
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"https://api.github.com/repos/${owner}/${repo}/releases" | \
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"https://api.github.com/repos/${owner}/${repo}/releases?per_page=100" | \
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jq -r --arg tag "${tag}" '.[] | select(.tag_name==$tag) | .url')
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assets_response=$(

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