feat(chv-guest): 对齐 Muse P2——nspawn 单元 + broker + 浏览器子代理
- chv-cell：systemd-nspawn 单命令单元，--private-users=1000:65536 （单元 root → 客机 chv），丢 8 项能力（含 SYS_PTRACE/NET_ADMIN）， syscall 过滤扣 io_uring，遮蔽 /etc/chv 与 playwright， --network-veth（10.200.0.0/24 + NAT），白名单环境透传 - chv-broker：Unix socket + SO_PEERCRED（uid 范围 + pid ns 对照）， 白名单 ping/sync/browser；sync 只调 chv-sync（runuser -u chv） - chv-browser：单元外独立进程，只暴露 open/snapshot/screenshot/ close/ping，返回无障碍树快照（截断）；evaluate/content 拒绝 - build.sh：装 systemd-container/iproute2/iptables，拷入三脚本， 建 chv-browser 用户与两个 systemd 单元；vsock_notify 条件拷入 - buildinfo：内容项加 P2 四项，支持可选 extra_contents - 测试：cloud/tests/test_chv_muse_p2.py 40 项全过；broker/browser 真实 socket 回路冒烟通过（root 连 broker 被拒） - 差距表：docs/chv-muse-p2-gap.md；真机验证待测试机空闲（round 11） 本地做，不推、不合、不部署
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@@ -26,6 +26,12 @@
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# 失败关闭（不 --force、不自动 rebase）。token 绝不进镜像、
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# 代码、日志。
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#
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# 对齐 Muse P2（2026-11-07）：镜像里加 systemd-nspawn 运行时单元
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#（chv-cell：codex 跑在单元内）+ 单元外 broker（chv-broker：
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#Unix socket + SO_PEERCRED 白名单代办）+ 浏览器子代理（chv-browser：
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#单元外独立进程，只返回无障碍树快照）。boot clone 仍在单元外做；
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#单元隔离口径见 docs/chv-muse-p2-gap.md。
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#
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# 用法（必须在带 /dev/kvm 的宿主上跑全量模式）：
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# CODEX_BIN_DIR=bin UBUNTU_VERSION=24.04 CODEX_VERSION=0.164.0-alpha.9 \
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# REPO_COMMIT=$(git rev-parse --short HEAD) \
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@@ -166,6 +172,13 @@ if [ ! -f "$SCRIPT_DIR/chv-sync.sh" ]; then
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echo "缺少 chv-sync.sh（Gitea 双向同步脚本）：$SCRIPT_DIR" >&2
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exit 1
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fi
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# 对齐 Muse P2：单元启动器 / broker / 浏览器子代理三脚本缺一即失败。
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for p2_script in chv-cell.py chv-broker.py chv-browser.py; do
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if [ ! -f "$SCRIPT_DIR/$p2_script" ]; then
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echo "缺少 $p2_script（Muse P2 客机脚本）：$SCRIPT_DIR" >&2
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exit 1
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fi
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done
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if [ "$DRY_RUN" = "0" ]; then
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if [ ! -e /dev/kvm ]; then
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echo "CHV_GUEST_BUILD needs a KVM host: /dev/kvm 不存在" >&2
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@@ -249,7 +262,7 @@ run qemu-img convert -f qcow2 -O raw "$IMG" "$OUT/disk.raw"
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# 写进 /app/guest-versions-chromium.txt）。
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GT_INSTALL_CMD="curl -fsSL -o /tmp/gt-install.sh https://gitea.com/gitea/cli/raw/branch/main/scripts/install.sh && echo \"${GT_INSTALL_SH_SHA256} /tmp/gt-install.sh\" | sha256sum -c - && GITEA_CLI_VERSION=${GT_VERSION} GITEA_CLI_INSTALL_DIR=/usr/local/bin sh /tmp/gt-install.sh && rm -f /tmp/gt-install.sh && /usr/local/bin/gt version"
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VC_ARGS=(-a "$OUT/disk.raw"
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--run-command 'apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends git openssh-server openssh-client cloud-init python3 python3-pip curl ca-certificates xz-utils fonts-wqy-microhei fontconfig && apt-get clean'
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--run-command 'apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends git openssh-server openssh-client cloud-init python3 python3-pip curl ca-certificates xz-utils fonts-wqy-microhei fontconfig systemd-container iproute2 iptables && apt-get clean'
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--copy-in "$CODEX_BIN_DIR/codex:/usr/local/bin/"
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--copy-in "$CODEX_BIN_DIR/codex-code-mode-host:/usr/local/bin/"
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--copy-in "$CODEX_BIN_DIR/codex-resources:/usr/local/bin/"
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@@ -258,13 +271,32 @@ VC_ARGS=(-a "$OUT/disk.raw"
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--copy-in "$REPO_DIR/host.py:/app/"
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--copy-in "$SCRIPT_DIR/chv-sync.sh:/usr/local/bin/"
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--run-command 'mv /usr/local/bin/chv-sync.sh /usr/local/bin/chv-sync && chmod +x /usr/local/bin/chv-sync'
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--copy-in "$SCRIPT_DIR/chv-cell.py:/usr/local/bin/"
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--copy-in "$SCRIPT_DIR/chv-broker.py:/usr/local/bin/"
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--copy-in "$SCRIPT_DIR/chv-browser.py:/usr/local/bin/"
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--run-command 'mv /usr/local/bin/chv-cell.py /usr/local/bin/chv-cell && mv /usr/local/bin/chv-broker.py /usr/local/bin/chv-broker && mv /usr/local/bin/chv-browser.py /usr/local/bin/chv-browser && chmod +x /usr/local/bin/chv-cell /usr/local/bin/chv-broker /usr/local/bin/chv-browser'
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--run-command 'printf "runcmd:\n - systemctl restart ssh || service ssh restart || true\n - /usr/local/bin/chv-sync boot >>/var/log/chv-sync.log 2>&1 || true\n" > /etc/cloud/cloud.cfg.d/99-chv-sync.cfg'
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--run-command 'git config --system user.name chv && git config --system user.email chv@localhost && git config --system credential.helper store && git config --system init.defaultBranch main'
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--run-command "$GT_INSTALL_CMD"
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--run-command '/usr/local/bin/gt version > /app/guest-versions-gt.txt'
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--run-command 'printf "ssh_deletekeys: false\nbootcmd:\n - \"[ -f /etc/ssh/ssh_host_ed25519_key ] || ssh-keygen -A\"\n" > /etc/cloud/cloud.cfg.d/99-chv-hostkey.cfg; systemctl enable ssh || true'
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--run-command 'printf "PasswordAuthentication no\nPermitRootLogin prohibit-password\nChallengeResponseAuthentication no\nKbdInteractiveAuthentication no\nPubkeyAuthentication yes\n" > /etc/ssh/sshd_config.d/99-chv.conf && mkdir -p /run/sshd && ssh-keygen -A && sshd -t && grep -q "^PasswordAuthentication no" /etc/ssh/sshd_config.d/99-chv.conf && grep -q "^PermitRootLogin prohibit-password" /etc/ssh/sshd_config.d/99-chv.conf && rm -f /etc/ssh/ssh_host_* && test -z "$(ls /etc/ssh/ssh_host_* 2>/dev/null)"'
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--run-command 'dpkg-query -W -f "\${Package} \${Version}\n" > /app/guest-versions-dpkg.txt; pip3 freeze > /app/guest-versions-pip.txt || true')
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--run-command 'dpkg-query -W -f "\${Package} \${Version}\n" > /app/guest-versions-dpkg.txt; pip3 freeze > /app/guest-versions-pip.txt || true'
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--run-command 'useradd --system --home-dir /var/lib/chv-browser --shell /usr/sbin/nologin chv-browser && mkdir -p /var/lib/chv-browser /run/chv/shots && chown chv-browser:chv-browser /var/lib/chv-browser /run/chv/shots && chmod 0755 /run/chv /run/chv/shots'
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--run-command 'printf "[Unit]\nDescription=CHV cell broker (Muse P2)\nAfter=network.target\n\n[Service]\nType=simple\nExecStart=/usr/bin/python3 /usr/local/bin/chv-broker\nRestart=on-failure\nRestartSec=2\n\n[Install]\nWantedBy=multi-user.target\n" > /etc/systemd/system/chv-broker.service'
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--run-command 'printf "[Unit]\nDescription=CHV browser sub-agent (Muse P2)\nAfter=network.target\n\n[Service]\nType=simple\nUser=chv-browser\nGroup=chv-browser\nExecStart=/usr/bin/python3 /usr/local/bin/chv-browser\nRestart=on-failure\nRestartSec=2\n\n[Install]\nWantedBy=multi-user.target\n" > /etc/systemd/system/chv-browser.service'
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--run-command 'printf "d /run/chv 0755 root root -\nd /run/chv/shots 0755 chv-browser chv-browser -\n" > /etc/tmpfiles.d/chv.conf && systemctl enable chv-broker chv-browser || true')
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# P1 交接（Muse P1 的 vsock_notify.py）：文件在仓库里存在时拷入
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# 镜像（P1 分支才有，本分支尚无）；不存在时只警告、不失败——
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# 合并后自动生效，P2 不改该脚本内容。
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VSOCK_NOTIFY_PRESENT=0
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if [ -f "$REPO_DIR/cloud/chv/guest/vsock_notify.py" ]; then
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VC_ARGS+=(--copy-in "$REPO_DIR/cloud/chv/guest/vsock_notify.py:/usr/local/bin/"
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--run-command 'mv /usr/local/bin/vsock_notify.py /usr/local/bin/vsock-notify && chmod +x /usr/local/bin/vsock-notify')
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VSOCK_NOTIFY_PRESENT=1
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else
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echo "警告：cloud/chv/guest/vsock_notify.py 不在仓库里（P1 未合并），镜像暂不含 vsock notify" >&2
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fi
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if [ "${PLAYWRIGHT:-1}" = "1" ]; then
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VC_ARGS+=(
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--run-command '(pip3 install --no-cache-dir --break-system-packages playwright || pip3 install --no-cache-dir playwright) && PLAYWRIGHT_BROWSERS_PATH=/usr/local/share/ms-playwright python3 -m playwright install --with-deps chromium-headless-shell'
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@@ -316,14 +348,16 @@ fi
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# 产物校验（干跑只打印，不执行校验命令的副作用部分）。
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if [ "$DRY_RUN" = "1" ]; then
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echo "DRY-RUN: test -s $OUT/vmlinux && test -s $OUT/disk.raw"
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echo "DRY-RUN: python3 $SCRIPT_DIR/buildinfo.py $OUT $TAG $UBUNTU_VERSION $CODEX_VERSION $REPO_COMMIT <sha256> ${PLAYWRIGHT:-1} ${CHROMIUM_HEADLESS_SHELL_REV:-} # 生成 $OUT/BUILDINFO.json 并校验 tag=$TAG"
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echo "DRY-RUN: python3 $SCRIPT_DIR/buildinfo.py $OUT $TAG $UBUNTU_VERSION $CODEX_VERSION $REPO_COMMIT <sha256> ${PLAYWRIGHT:-1} ${CHROMIUM_HEADLESS_SHELL_REV:-} [vsock_notify?] # 生成 $OUT/BUILDINFO.json 并校验 tag=$TAG"
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else
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test -s "$OUT/vmlinux" || { echo "内核产物为空：$OUT/vmlinux" >&2; exit 1; }
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test -s "$OUT/disk.raw" || { echo "磁盘产物为空：$OUT/disk.raw" >&2; exit 1; }
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if [ "${PLAYWRIGHT:-1}" = "1" ] && [ -z "$CHROMIUM_HEADLESS_SHELL_REV" ]; then
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echo "警告：CHROMIUM_HEADLESS_SHELL_REV 未设，Chromium 版本只记录、不钉死（V-9 验收须设该变量重建）" >&2
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fi
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python3 "$SCRIPT_DIR/buildinfo.py" "$OUT" "$TAG" "$UBUNTU_VERSION" "$CODEX_VERSION" "$REPO_COMMIT" "$UBUNTU_IMAGE_SHA256" "${PLAYWRIGHT:-1}" "${CHROMIUM_HEADLESS_SHELL_REV:-}"
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EXTRA_CONTENTS=""
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[ "$VSOCK_NOTIFY_PRESENT" = "1" ] && EXTRA_CONTENTS="vsock_notify"
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python3 "$SCRIPT_DIR/buildinfo.py" "$OUT" "$TAG" "$UBUNTU_VERSION" "$CODEX_VERSION" "$REPO_COMMIT" "$UBUNTU_IMAGE_SHA256" "${PLAYWRIGHT:-1}" "${CHROMIUM_HEADLESS_SHELL_REV:-}" "$EXTRA_CONTENTS"
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fi
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echo "tag=$TAG"
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echo "out=$OUT"
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