diff --git a/cloud/chv/config.py b/cloud/chv/config.py
index 693cfe1..0fdbf2d 100644
--- a/cloud/chv/config.py
+++ b/cloud/chv/config.py
@@ -245,6 +245,20 @@ def _timeout_fragment(params: dict, env: dict) -> dict:
     }
 
 
+def _gitea_fragment(env: dict) -> dict:
+    """Gitea 同步片段：宿主配置环境变量 CHV_GITEA_*（见
+    gitea_sync.CHV_GITEA_ENV_MAP）映射成的 guest-env 键值
+    dict。无配置即空 dict（本次启动不同步）；值本身不校验
+    完整性——完整性由 wake_vm 在起 VMM 前 fail-closed
+    （validate_gitea_sync_env），构造时不拦，免得一个配
+    错的宿主连执行器对象都建不出来、排障信息全丢。
+    import 在函数内：本模块是叶子模块，顶层只许 import
+    标准库（见 test_leaf_modules_only_import_stdlib），
+    与执行器的方法内 import 同款惯例。"""
+    from cloud.chv.gitea_sync import config_gitea_sync_env
+    return {"gitea_sync_env": config_gitea_sync_env(env)}
+
+
 def _assemble_chv_config(fragments: list) -> "ChvConfig":
     """把各片段 dict 合并成 ChvConfig（纯合并，不改值）。
 
@@ -277,4 +291,5 @@ def build_chv_config(params: dict, env: dict) -> "ChvConfig":
         _disk_fragment(env),
         _network_fragment(params, env),
         _timeout_fragment(params, env),
+        _gitea_fragment(env),
     ])
diff --git a/cloud/chv/executor.py b/cloud/chv/executor.py
index 3bdddc4..764f568 100644
--- a/cloud/chv/executor.py
+++ b/cloud/chv/executor.py
@@ -59,6 +59,7 @@ from cloud.chv.ssh_transport import build_ssh_command as _build_ssh_cmd
 from cloud.chv.ssh_transport import known_hosts_path as _known_hosts_path
 from cloud.chv.ssh_transport import (
     parse_keyscan_output,
+    split_guest_env,
     split_secret_env,
     write_known_hosts,
 )
@@ -398,7 +399,8 @@ class CloudHypervisorExecutor(Executor):
                 "ssh_forward", "reuse_experiment",
                 "single_tenant_project", "snapshot_max_count",
                 "snapshot_max_total_gb", "snapshot_retention_days",
-                "snapshot_dir", "allow_remote_snapshot"):
+                "snapshot_dir", "allow_remote_snapshot",
+                "gitea_sync_env"):
             setattr(self, _field, getattr(_cfg, _field))
 
     # -- 名字 / 路径 ---------------------------------------------------
@@ -827,7 +829,8 @@ class CloudHypervisorExecutor(Executor):
             [known_hosts_line(self.ssh_port, public_text,
                               host=ssh_host)])
 
-    def provision_host_key(self, task: dict, secret_env: dict | None = None) -> dict:
+    def provision_host_key(self, task: dict, secret_env: dict | None = None,
+                           guest_env: dict | None = None) -> dict:
         """按 VM 预置 host key（补缺口轨强方案，见 hostkeys.py）：
         启动前为该 VM 生成一次性 ed25519 host key 对，公钥
         立即写进该 VM 的 known_hosts（钉死），私钥只写进
@@ -837,7 +840,9 @@ class CloudHypervisorExecutor(Executor):
         不同 VM 的 key 对不同（state_dir/<vm> 隔离），同一
         VM 重启复用已有对（否则钉死立即失效）。
         feat-chv-secfix（H2/M2）：secret_env 给定时写进
-        seed 的客内密钥文件（0600）；上次清理失败留下的
+        seed 的客内密钥文件（0600）；guest_env 给定时与
+        secret_env 合并写同一客内文件（boot 时要用的非密钥
+        同步变量，见 gitea_sync）；上次清理失败留下的
         脏标记存在时直接拒绝（清理失败即拒起，不再复用
         旧 key 对）。成功后审计 host_key_generated（只含
         VM 名与密钥名，不含任何 key 值）。"""
@@ -862,7 +867,8 @@ class CloudHypervisorExecutor(Executor):
         self._write_provisioned_known_hosts(paths, public_text)
         seed_dir = write_seed(paths["seed_dir"], vm,
                               private_text, public_text,
-                              secret_env=secret_env)
+                              secret_env=secret_env,
+                              guest_env=guest_env)
         self._emit("host_key_generated", task,
                    "vm=%s secret_names=%s"
                    % (vm, ",".join(sorted(secret_env or {}))))
@@ -1305,6 +1311,37 @@ class CloudHypervisorExecutor(Executor):
                 "VMM api-socket 组/其它可写（%o），拒绝启动：%s"
                 % (mode, socket_path))
 
+    def _effective_extra_env(self, task: dict,
+                             extra_env: dict | None) -> dict | None:
+        """wake 生效的 extra_env：把 Gitea 同步变量并进来。
+
+        优先级（低→高）：执行器宿主配置 CHV_GITEA_*（构造时
+        已映射成 gitea_sync_env）< 任务 dict 的 gitea_sync <
+        显式 extra_env 同名键（见 gitea_sync.extract_...）。
+        同步已请求（任一同步键出现）但必填键不全时，在起
+        VMM 之前就 ChvFailure（gitea_sync_incomplete，
+        fail-closed；错误只含缺失键名，不含值）——半份同步
+        配置绝不能让 VM 带着“以为同步了”的状态启动。无同步
+        变量时原样返回（本次启动不同步）。
+        必须在 _wake_prechecks 之前调：任务/配置来源的
+        GITEA_TOKEN 也要受 keyscan 模式 fail-closed 检查。"""
+        from cloud.chv.gitea_sync import (
+            extract_gitea_sync_env,
+            validate_gitea_sync_env,
+        )
+        sync = extract_gitea_sync_env(
+            task=task, extra_env=extra_env,
+            config_sync=getattr(self, "gitea_sync_env", None))
+        try:
+            validate_gitea_sync_env(sync)
+        except ValueError as exc:
+            raise ChvFailure("gitea_sync_incomplete", str(exc))
+        if not sync:
+            return extra_env
+        merged = dict(extra_env or {})
+        merged.update(sync)
+        return merged
+
     def _wake_prechecks(self, task: dict, name: str, extra_env) -> tuple:
         """wake 前置：preflight/容量/配额/net/密钥模式，纯移动。
         失败时发 vm_failed 审计并原样抛 ChvFailure。"""
@@ -1343,7 +1380,8 @@ class CloudHypervisorExecutor(Executor):
             raise
         return secrets, net_entries
 
-    def _provision_seed_disk(self, task: dict, name: str, secrets) -> str | None:
+    def _provision_seed_disk(self, task: dict, name: str, secrets,
+                             guest_env: dict | None = None) -> str | None:
         """provisioned 模式的 seed 盘供给：生成→制盘→挂盘，
         任一步失败即抛（调用方 stop_vm 清理），纯移动。"""
         seed_disk = None
@@ -1366,7 +1404,8 @@ class CloudHypervisorExecutor(Executor):
                 seed_disk_path,
             )
             provisioned = self.provision_host_key(
-                task, secret_env=secrets or None)
+                task, secret_env=secrets or None,
+                guest_env=guest_env or None)
             seed_disk = seed_disk_path(self.state_dir, name)
             build_seed_disk(
                 provisioned["seed_dir"], seed_disk,
@@ -1446,10 +1485,19 @@ class CloudHypervisorExecutor(Executor):
         if not isinstance(task, dict) or task.get("id") is None:
             raise ValueError("任务缺少 id")
         name = self.vm_name(task)
+        try:
+            extra_env = self._effective_extra_env(task, extra_env)
+        except ChvFailure as exc:
+            self._emit("vm_failed", task,
+                       "vm=%s wake 失败 kind=%s" % (name, exc.kind),
+                       exc.kind)
+            raise
         secrets, net_entries = self._wake_prechecks(task, name, extra_env)
+        guest_env, _plain = split_guest_env(extra_env)
         task_disk, socket_path = self._wake_prepare(task, name)
         try:
-            seed_disk = self._provision_seed_disk(task, name, secrets)
+            seed_disk = self._provision_seed_disk(
+                task, name, secrets, guest_env=guest_env or None)
             self._boot_vm(task, name, task_disk, seed_disk, net_entries)
         except Exception:
             try:
diff --git a/cloud/chv/gitea_sync.py b/cloud/chv/gitea_sync.py
new file mode 100644
index 0000000..7b4ca5f
--- /dev/null
+++ b/cloud/chv/gitea_sync.py
@@ -0,0 +1,126 @@
+"""Gitea 同步变量供给（CHV guest-env 集成，叶子模块）。
+
+背景：客内 chv-sync boot 在 cloud-init 时运行、SSH 之前，
+只能读 seed 投递的 /etc/chv/guest-env，看不到 SSH env 前缀。
+因此同步所需的 6 个变量必须随 seed 进 guest-env，不能只靠
+extra_env 的 SSH 前缀；其中 GITEA_TOKEN 是密钥，只进 seed，
+绝不进 argv/日志/镜像。
+
+变量与来源（优先级低→高，后者覆盖前者）：
+1. 宿主配置环境变量（主来源，生产口径）：CHV_GITEA_URL、
+   CHV_GITEA_USER、CHV_GITEA_TOKEN、CHV_SYNC_REPO、
+   CHV_SYNC_BRANCH、CHV_GITEA_EMAIL。由部署该 worker/执行器
+   的运维在宿主环境里设置，与 CHV_SSH_KEY、CHV_EGRESS_PROXY
+   同款口径；CHV 是单租户单 VM 模型，一台宿主对应一个
+   Gitea 身份。密钥来源绝不硬编码进代码。
+2. 任务级覆盖（内存态）：任务 dict 的 `gitea_sync` 子 dict，
+   键即 6 个变量名。仅在调用方以内存态构造任务 dict 时生效
+   （直接调 wake_vm、测试、手工驱动）；tasks 表目前没有
+   JSON/元数据列，DB 往返会丢掉它——这是已知边界，不做
+   静默声称，需要每任务不同仓库时再做任务表迁移。
+3. 显式 extra_env：调用方直接传给 wake_vm/dispatch 的
+   extra_env 里的同名键，优先级最高。
+
+缺失语义（fail-closed，不跳过同步）：
+- 6 个键一个都没有 → 本次启动不同步（chv-sync boot 见无
+  guest-env 静默成功，VM 照常用）。
+- 任一键出现、但必填 4 键（GITEA_URL、GITEA_USER、
+  GITEA_TOKEN、SYNC_REPO）缺失 → 校验失败，wake 在起 VMM
+  之前直接拒绝；半份同步配置绝不能让 VM 带着“我以为同步
+  了”的状态启动。SYNC_BRANCH、GITEA_EMAIL 可选。
+- 校验错误只含缺失的键名，绝不含任何变量值。
+
+本模块是纯函数，不读文件、不跑 VM、不含任何密钥值。
+"""
+
+# 同步变量全集（guest-env 里应有的键）。
+GITEA_SYNC_KEYS = frozenset({
+    "GITEA_URL", "GITEA_USER", "GITEA_TOKEN",
+    "SYNC_REPO", "SYNC_BRANCH", "GITEA_EMAIL",
+})
+
+# 其中密钥：只进 seed，绝不进 argv（见 ssh_transport 的
+# _CHV_SECRET_ENV_NAMES）。
+GITEA_SYNC_SECRET_KEYS = frozenset({"GITEA_TOKEN"})
+
+# 其中非密钥、但 boot 时就要用、也必须进 guest-env 的键
+#（SSH env 前缀到不了 cloud-init 时运行的 chv-sync boot）。
+GITEA_SYNC_PLAIN_KEYS = GITEA_SYNC_KEYS - GITEA_SYNC_SECRET_KEYS
+
+# 必填键：缺一即 fail-closed（见模块头缺失语义）。
+GITEA_SYNC_REQUIRED_KEYS = frozenset({
+    "GITEA_URL", "GITEA_USER", "GITEA_TOKEN", "SYNC_REPO",
+})
+
+# 宿主配置环境变量名 → guest-env 键名。
+CHV_GITEA_ENV_MAP = {
+    "CHV_GITEA_URL": "GITEA_URL",
+    "CHV_GITEA_USER": "GITEA_USER",
+    "CHV_GITEA_TOKEN": "GITEA_TOKEN",
+    "CHV_SYNC_REPO": "SYNC_REPO",
+    "CHV_SYNC_BRANCH": "SYNC_BRANCH",
+    "CHV_GITEA_EMAIL": "GITEA_EMAIL",
+}
+
+
+def _clean(mapping: dict | None) -> dict:
+    """只留白名单键：值须为非空字符串（strip 后），其它
+    类型/空值/未知键一律丢掉——调用方拼错的键名绝不静默
+    进 seed 变成客内无人读的脏变量。"""
+    cleaned = {}
+    for key, value in dict(mapping or {}).items():
+        if key not in GITEA_SYNC_KEYS:
+            continue
+        if not isinstance(value, str):
+            continue
+        value = value.strip()
+        if not value:
+            continue
+        cleaned[key] = value
+    return cleaned
+
+
+def config_gitea_sync_env(env: dict | None) -> dict:
+    """宿主配置环境变量（CHV_GITEA_*）→ guest-env 键名。"""
+    mapped = {}
+    for env_name, key in CHV_GITEA_ENV_MAP.items():
+        value = (env or {}).get(env_name)
+        if value is not None:
+            mapped[key] = value
+    return _clean(mapped)
+
+
+def task_gitea_sync_env(task: dict | None) -> dict:
+    """任务 dict 的 `gitea_sync` 子 dict → 白名单后的键值。
+    不是 dict（或缺失）即空——绝不把任务其它字段误读成
+    同步变量。"""
+    if not isinstance(task, dict):
+        return {}
+    return _clean(task.get("gitea_sync"))
+
+
+def extract_gitea_sync_env(task: dict | None = None,
+                           extra_env: dict | None = None,
+                           config_sync: dict | None = None) -> dict:
+    """三源合并（优先级：config_sync < 任务 gitea_sync <
+    extra_env 同名键）。返回白名单后的 dict，可能为空
+    （空 = 本次启动不同步）。"""
+    merged = {}
+    merged.update(_clean(config_sync))
+    merged.update(task_gitea_sync_env(task))
+    merged.update(_clean(extra_env))
+    return merged
+
+
+def validate_gitea_sync_env(env: dict | None) -> None:
+    """校验同步变量完整性：空即不同步（通过）；非空但必填
+    键缺失即 ValueError（只含缺失键名，不含值）。调用方
+    （执行器 wake_vm）在起 VMM 前调本函数做 fail-closed。"""
+    env = dict(env or {})
+    if not env:
+        return
+    missing = sorted(GITEA_SYNC_REQUIRED_KEYS - set(env))
+    if missing:
+        raise ValueError(
+            "Gitea 同步变量不完整，缺失：%s（同步已请求但必填"
+            "键不全，拒绝启动）" % ",".join(missing))
diff --git a/cloud/chv/hostkeys.py b/cloud/chv/hostkeys.py
index 7575b4c..5898308 100644
--- a/cloud/chv/hostkeys.py
+++ b/cloud/chv/hostkeys.py
@@ -168,20 +168,37 @@ def build_seed_user_data(private_key_text: str, public_key_text: str) -> str:
     return "\n".join(lines) + "\n"
 
 
+def _guest_env_entry(merged_env: dict) -> list:
+    """guest-env 的 write_files 条目行（0600 root，值经
+    shlex.quote 引用）：只能并进已有的 write_files 列表，
+    绝不能再写一个 write_files: 键（YAML 重复键会覆盖掉
+    host key 的两条写文件条目，预置即失效）。"""
+    lines = [
+        "  - path: %s" % GUEST_ENV_PATH,
+        "    permissions: '0600'",
+        "    owner: root:root",
+        "    content: |",
+    ]
+    for key in sorted(merged_env):
+        lines.append("      %s=%s"
+                     % (key, shlex.quote(str(merged_env[key]))))
+    return lines
+
+
 def write_seed(seed_dir: str, vm_name: str, private_key_text: str,
                public_key_text: str,
-               secret_env: dict | None = None) -> str:
-    """写 seed 目录：meta-data + user-data（均为 0600）。
+               secret_env: dict | None = None,
+               guest_env: dict | None = None) -> str:
+    """写 seed 目录：meta-data + user-data（均为 0600），
+    返回 seed 目录路径。调用方负责随 VM 销毁删掉它。
 
-    返回 seed 目录路径。seed 目录本身不含已知主机之外的
-    共享数据，调用方（执行器关闭/回收）负责删除它。
-    feat-chv-secfix（H2）：secret_env 给定时，user-data 再
-    写一个 write_files 条目，把密钥环境变量写进客内
-    GUEST_ENV_PATH（0600 root），值经 shlex.quote 引用后
-    才进文件内容——远程命令 source 该文件即可得到密钥
-    环境，密钥值从不出现在宿主 ssh argv、宿主进程环境与
-    审计明文里。secret_env 为空时不写该条目（客内文件不
-    存在时远程命令也不 source 它，见执行器）。"""
+    secret_env 给定时写进客内 GUEST_ENV_PATH（0600 root，
+    远程命令 source 它得密钥环境，值不进宿主 argv/环境/
+    审计明文）。guest_env 给定时与 secret_env 合并写同一
+    个条目（secret 优先于同名键，防两行同名）；guest_env
+    装 boot 时要用的非密钥同步变量（GITEA_URL 等，见
+    gitea_sync）：只走 SSH 前缀到不了 cloud-init 时运行
+    的 chv-sync boot。两者皆空时不写该条目。"""
     os.makedirs(seed_dir, exist_ok=True)
     meta_path = os.path.join(seed_dir, "meta-data")
     user_path = os.path.join(seed_dir, "user-data")
@@ -190,24 +207,14 @@ def write_seed(seed_dir: str, vm_name: str, private_key_text: str,
                  % (vm_name, vm_name))
     os.chmod(meta_path, 0o600)
     user_data = build_seed_user_data(private_key_text, public_key_text)
-    if secret_env:
-        # 注意：只能把条目并进已有的 write_files 列表，绝不能
-        # 再写一个 write_files: 键（YAML 重复键会覆盖掉 host
-        # key 的两条写文件条目，预置即失效）。seed 自 2026-11-07
-        # 起不再带 runcmd 段（见 build_seed_user_data 的根因
-        # 禁令），所以正常走 else 分支追加到 write_files 列表
-        # 末尾；marker 分支只作防御（将来模板若恢复 runcmd，
-        # 条目仍插在其前、仍属同一列表）。
-        lines = [
-            "  - path: %s" % GUEST_ENV_PATH,
-            "    permissions: '0600'",
-            "    owner: root:root",
-            "    content: |",
-        ]
-        for key in sorted(secret_env):
-            lines.append("      %s=%s"
-                         % (key, shlex.quote(str(secret_env[key]))))
-        # 条目插在 runcmd 段之前、仍属同一 write_files 列表。
+    merged_env = dict(guest_env or {})
+    merged_env.update(secret_env or {})
+    if merged_env:
+        lines = _guest_env_entry(merged_env)
+        # 条目插在 runcmd 段之前、仍属同一 write_files 列表
+        #（seed 自 2026-11-07 起不再带 runcmd，见
+        # build_seed_user_data 的根因禁令；marker 分支只作
+        # 防御，将来模板若恢复 runcmd 仍插在其前）。
         marker = "runcmd:\n"
         if marker in user_data:
             head, tail = user_data.split(marker, 1)
diff --git a/cloud/chv/ssh_transport.py b/cloud/chv/ssh_transport.py
index 71899b1..2975f60 100644
--- a/cloud/chv/ssh_transport.py
+++ b/cloud/chv/ssh_transport.py
@@ -44,12 +44,25 @@ StrictHostKeyChecking=no + UserKnownHostsFile=/dev/null）：
 import os
 import shlex
 
+from cloud.chv.gitea_sync import (
+    GITEA_SYNC_PLAIN_KEYS,
+    GITEA_SYNC_SECRET_KEYS,
+)
+
 # CHV 密钥类环境变量名：值绝不进 ssh argv。Docker 线是
 # “-e 只传名、值由 CLI 子进程环境提供”（值仍在宿主进程
 # 环境里，/proc/<pid>/environ 对同用户可见）；CHV 线是
 # “值只进 seed 盘客内文件”（宿主进程表与宿主进程环境里
 # 都没有值），比 Docker 线更严——差异见执行器文档。
-_CHV_SECRET_ENV_NAMES = frozenset({"SUB2API_API_KEY"})
+_CHV_SECRET_ENV_NAMES = frozenset({"SUB2API_API_KEY"}) \
+    | GITEA_SYNC_SECRET_KEYS
+
+# CHV guest-env 类非密钥变量名：值可进 SSH env 前缀（按定义
+# 不是密钥），但 chv-sync boot 在 cloud-init 时运行、SSH 之
+# 前，只能读 seed 投递的 /etc/chv/guest-env，所以这些键也
+# 必须随 seed 写进 guest-env（见 split_guest_env 与执行器
+# wake_vm），只走 SSH 前缀是不够的。
+_CHV_GUEST_ENV_NAMES = frozenset(GITEA_SYNC_PLAIN_KEYS)
 
 
 def split_secret_env(extra_env: dict | None) -> tuple[dict, dict]:
@@ -63,6 +76,23 @@ def split_secret_env(extra_env: dict | None) -> tuple[dict, dict]:
     return secrets, plain
 
 
+def split_guest_env(extra_env: dict | None) -> tuple[dict, dict]:
+    """把 extra_env 拆成（须写进 seed guest-env 的子集，
+    非密钥子集）。
+
+    guest-env 子集 = 密钥子集 + _CHV_GUEST_ENV_NAMES 命中的
+    非密钥同步变量（GITEA_URL 等 boot 时就要用的键）；第二
+    个返回仍是全部非密钥子集（含 guest-env 命中键——它们
+    任务期也要经 SSH env 前缀进客机环境，seed 只解决
+    boot 时可见性，不替代任务期前缀）。"""
+    secrets, plain = split_secret_env(extra_env)
+    guest_env = dict(secrets)
+    for key, value in plain.items():
+        if key in _CHV_GUEST_ENV_NAMES:
+            guest_env[key] = value
+    return guest_env, plain
+
+
 def remote_command(inner_cmd: list, egress_proxy: str | None = None,
                    extra_env: dict | None = None,
                    guest_env_file: str | None = None) -> list:
diff --git a/cloud/tests/test_chv_gitea_sync.py b/cloud/tests/test_chv_gitea_sync.py
new file mode 100644
index 0000000..fec9fd6
--- /dev/null
+++ b/cloud/tests/test_chv_gitea_sync.py
@@ -0,0 +1,495 @@
+"""CHV guest-env 集成测试：Gitea 同步变量供给链路。
+
+只用标准库与 mock runner/launcher/api_client，绝不启动真实
+VM、不联网、不含任何真实 token（测试值全是假值）。
+
+覆盖：
+- gitea_sync 纯函数：三源合并优先级、白名单清洗、完整性
+  校验（fail-closed）与空=不同步；
+- ssh_transport：GITEA_TOKEN 进密钥集（argv 拒绝）、其余
+  5 键进 guest-env 集；
+- hostkeys.write_seed：guest_env 与 secret_env 合并写同一
+  条目、仍无 runcmd、0600；
+- 执行器 wake_vm：完整同步变量进 seed user-data；缺失必填
+  键时起 VMM 前 ChvFailure 且不启动；无同步变量时正常启动
+  且不写 guest-env；seed 投递后 build_ssh_command 才能用
+  GITEA_TOKEN 且 argv 里绝无 token 值；
+- worker：_gitea_sync_env 取值；_run_attempt 只对 CHV 执行器
+  把同步变量并进 gateway_env。
+"""
+
+import os
+import sys
+import tempfile
+import unittest
+from pathlib import Path
+from types import SimpleNamespace
+
+import yaml
+
+try:
+    from cloud.chv.gitea_sync import (
+        GITEA_SYNC_KEYS,
+        config_gitea_sync_env,
+        extract_gitea_sync_env,
+        validate_gitea_sync_env,
+    )
+    from cloud.chv.hostkeys import write_seed
+    from cloud.chv.ssh_transport import (
+        _CHV_SECRET_ENV_NAMES,
+        build_ssh_command,
+        remote_command,
+        split_guest_env,
+        split_secret_env,
+    )
+    from cloud.sandbox import ChvFailure, CloudHypervisorExecutor
+    from cloud.worker import Worker
+except ImportError:
+    sys.path.insert(0, str(Path(__file__).resolve().parents[2]))
+    from cloud.chv.gitea_sync import (
+        GITEA_SYNC_KEYS,
+        config_gitea_sync_env,
+        extract_gitea_sync_env,
+        validate_gitea_sync_env,
+    )
+    from cloud.chv.hostkeys import write_seed
+    from cloud.chv.ssh_transport import (
+        _CHV_SECRET_ENV_NAMES,
+        build_ssh_command,
+        remote_command,
+        split_guest_env,
+        split_secret_env,
+    )
+    from cloud.sandbox import ChvFailure, CloudHypervisorExecutor
+    from cloud.worker import Worker
+
+
+FAKE_SYNC = {
+    "GITEA_URL": "https://gitea.tose.top",
+    "GITEA_USER": "admin",
+    "GITEA_TOKEN": "fake-token-123",
+    "SYNC_REPO": "admin/chv-sync-test",
+    "SYNC_BRANCH": "main",
+    "GITEA_EMAIL": "admin@tose.top",
+}
+
+
+class FakeResult:
+    def __init__(self, returncode=0, stdout="", stderr=""):
+        self.returncode = returncode
+        self.stdout = stdout
+        self.stderr = stderr
+
+
+class FakeProc:
+    def __init__(self, alive=True):
+        self._alive = alive
+
+    def poll(self):
+        return None if self._alive else 1
+
+    def terminate(self):
+        self._alive = False
+
+    def wait(self, timeout=None):
+        return 0
+
+    def kill(self):
+        self._alive = False
+
+
+def _write(path, content=b"x"):
+    with open(path, "wb") as fh:
+        fh.write(content)
+    os.chmod(path, 0o755)
+    return path
+
+
+def _seed_user_text(state_dir, vm_name):
+    with open(os.path.join(state_dir, vm_name, "seed", "user-data")) as fh:
+        return fh.read()
+
+
+def _guest_env_lines(user_text):
+    parsed = yaml.safe_load(user_text)
+    entries = parsed["write_files"]
+    guest = [e for e in entries if e["path"] == "/etc/chv/guest-env"]
+    assert len(guest) == 1, entries
+    return guest[0]["content"], guest[0]["permissions"]
+
+
+# -- (1) gitea_sync 纯函数 ---------------------------------------------
+class GiteaSyncPureTest(unittest.TestCase):
+    def test_keys_are_six(self):
+        self.assertEqual(GITEA_SYNC_KEYS, set(FAKE_SYNC))
+
+    def test_config_mapping(self):
+        env = {"CHV_GITEA_URL": "https://gitea.tose.top",
+               "CHV_GITEA_USER": "admin",
+               "CHV_GITEA_TOKEN": "tok",
+               "CHV_SYNC_REPO": "admin/chv-sync-test",
+               "CHV_SYNC_BRANCH": "main",
+               "CHV_GITEA_EMAIL": "admin@tose.top",
+               "CHV_UNRELATED": "x"}
+        self.assertEqual(config_gitea_sync_env(env), {
+            "GITEA_URL": "https://gitea.tose.top",
+            "GITEA_USER": "admin", "GITEA_TOKEN": "tok",
+            "SYNC_REPO": "admin/chv-sync-test",
+            "SYNC_BRANCH": "main", "GITEA_EMAIL": "admin@tose.top"})
+
+    def test_extract_priority_config_lt_task_lt_extra_env(self):
+        task = {"id": "t1", "gitea_sync": {
+            "GITEA_URL": "https://task.example",
+            "GITEA_USER": "task-user", "GITEA_TOKEN": "task-tok",
+            "SYNC_REPO": "task/repo"}}
+        out = extract_gitea_sync_env(
+            task=task,
+            extra_env={"SYNC_REPO": "extra/repo"},
+            config_sync={"GITEA_URL": "https://config.example",
+                         "GITEA_USER": "config-user",
+                         "GITEA_TOKEN": "config-tok",
+                         "SYNC_REPO": "config/repo",
+                         "SYNC_BRANCH": "dev"})
+        self.assertEqual(out["GITEA_URL"], "https://task.example")
+        self.assertEqual(out["GITEA_USER"], "task-user")
+        self.assertEqual(out["GITEA_TOKEN"], "task-tok")
+        self.assertEqual(out["SYNC_REPO"], "extra/repo")
+        self.assertEqual(out["SYNC_BRANCH"], "dev")
+
+    def test_extract_drops_unknown_and_empty_and_nonstr(self):
+        task = {"id": "t1", "gitea_sync": {
+            "GITEA_URL": "https://gitea.tose.top",
+            "EVIL": "nope", "SYNC_REPO": "  ",
+            "GITEA_TOKEN": 12345}}
+        out = extract_gitea_sync_env(task=task)
+        self.assertEqual(out, {"GITEA_URL": "https://gitea.tose.top"})
+        self.assertNotIn("gitea_sync", out)
+
+    def test_build_chv_config_maps_gitea_env(self):
+        from cloud.chv.config import build_chv_config
+        cfg = build_chv_config({}, {
+            "CHV_GITEA_URL": "https://gitea.tose.top",
+            "CHV_GITEA_USER": "admin",
+            "CHV_GITEA_TOKEN": "tok",
+            "CHV_SYNC_REPO": "admin/chv-sync-test"})
+        self.assertEqual(cfg.gitea_sync_env, {
+            "GITEA_URL": "https://gitea.tose.top",
+            "GITEA_USER": "admin", "GITEA_TOKEN": "tok",
+            "SYNC_REPO": "admin/chv-sync-test"})
+        cfg2 = build_chv_config({}, {})
+        self.assertEqual(cfg2.gitea_sync_env, {})
+
+    def test_validate_empty_passes_partial_fails_with_names_only(self):
+        validate_gitea_sync_env({})
+        validate_gitea_sync_env(None)
+        validate_gitea_sync_env(dict(FAKE_SYNC))
+        with self.assertRaises(ValueError) as ctx:
+            validate_gitea_sync_env({"GITEA_URL": "https://gitea.tose.top",
+                                     "SYNC_REPO": "admin/chv-sync-test"})
+        msg = str(ctx.exception)
+        self.assertIn("GITEA_TOKEN", msg)
+        self.assertIn("GITEA_USER", msg)
+        self.assertNotIn("gitea.tose.top", msg)
+        self.assertNotIn("chv-sync-test", msg)
+
+
+# -- (2) ssh_transport -------------------------------------------------
+class SshTransportSyncTest(unittest.TestCase):
+    def test_gitea_token_is_secret(self):
+        self.assertIn("GITEA_TOKEN", _CHV_SECRET_ENV_NAMES)
+        self.assertIn("SUB2API_API_KEY", _CHV_SECRET_ENV_NAMES)
+        secrets, plain = split_secret_env(
+            {"GITEA_TOKEN": "tok", "GITEA_URL": "https://x",
+             "OTHER": "1"})
+        self.assertEqual(secrets, {"GITEA_TOKEN": "tok"})
+        self.assertEqual(plain, {"GITEA_URL": "https://x", "OTHER": "1"})
+
+    def test_split_guest_env_covers_all_six_keys(self):
+        guest, plain = split_guest_env(dict(FAKE_SYNC, OTHER="1"))
+        self.assertEqual(set(guest), set(FAKE_SYNC))
+        self.assertEqual(guest["GITEA_TOKEN"], "fake-token-123")
+        # 非密钥子集仍含同步普通变量（任务期 SSH 前缀照常带它们）。
+        self.assertIn("GITEA_URL", plain)
+        self.assertNotIn("GITEA_TOKEN", plain)
+        self.assertIn("OTHER", plain)
+        self.assertNotIn("OTHER", guest)
+
+    def test_remote_command_rejects_gitea_token(self):
+        with self.assertRaises(ValueError):
+            remote_command(["true"], extra_env={"GITEA_TOKEN": "tok"})
+        with self.assertRaises(ValueError):
+            build_ssh_command(2222, "/tmp/key", "root", None,
+                              "/tmp/known_hosts", ["true"],
+                              extra_env={"GITEA_TOKEN": "tok"})
+
+
+# -- (3) hostkeys.write_seed -------------------------------------------
+class WriteSeedGuestEnvTest(unittest.TestCase):
+    def test_guest_env_and_secret_merge_into_one_entry_no_runcmd(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            seed_dir = os.path.join(tmp, "seed")
+            write_seed(seed_dir, "vm1", "PRIV", "ssh-ed25519 AAAAx",
+                       secret_env={"SUB2API_API_KEY": "gw-key"},
+                       guest_env={"GITEA_URL": "https://gitea.tose.top",
+                                  "GITEA_USER": "admin",
+                                  "SYNC_REPO": "admin/chv-sync-test",
+                                  "GITEA_TOKEN": "dup-should-lose"})
+            with open(os.path.join(seed_dir, "user-data")) as fh:
+                content = fh.read()
+        self.assertEqual(content.count("write_files:"), 1)
+        parsed = yaml.safe_load(content)
+        self.assertNotIn("runcmd", parsed)
+        self.assertEqual(len(parsed["write_files"]), 3)
+        text, perms = _guest_env_lines(content)
+        self.assertEqual(perms, "0600")
+        self.assertIn("GITEA_URL=https://gitea.tose.top", text)
+        self.assertIn("SUB2API_API_KEY=gw-key", text)
+        # 同名键以 secret_env 为准，不出现两行 GITEA_TOKEN。
+        self.assertEqual(text.count("GITEA_TOKEN="), 1)
+        self.assertIn("GITEA_TOKEN=dup-should-lose", text)
+
+    def test_guest_env_only_still_no_runcmd(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            seed_dir = os.path.join(tmp, "seed")
+            write_seed(seed_dir, "vm1", "PRIV", "ssh-ed25519 AAAAx",
+                       guest_env={"GITEA_URL": "https://gitea.tose.top"})
+            with open(os.path.join(seed_dir, "user-data")) as fh:
+                content = fh.read()
+        parsed = yaml.safe_load(content)
+        self.assertNotIn("runcmd", parsed)
+        self.assertEqual(len(parsed["write_files"]), 3)
+
+
+# -- (4) 执行器 wake_vm -------------------------------------------------
+class WakeGuestEnvCase(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.dir = self.tmp.name
+        self.binary = _write(os.path.join(self.dir, "cloud-hypervisor"))
+        self.ch_remote = _write(os.path.join(self.dir, "ch-remote"))
+        self.kernel = _write(os.path.join(self.dir, "vmlinux"))
+        self.rootfs = _write(os.path.join(self.dir, "disk.raw"),
+                             b"R" * 100)
+        self.ssh_key = _write(os.path.join(self.dir, "id_chv"))
+        self.kvm = _write(os.path.join(self.dir, "kvm"))
+        self.cpuinfo = os.path.join(self.dir, "cpuinfo")
+        with open(self.cpuinfo, "w") as fh:
+            fh.write("flags : fpu vmx sse\n")
+        self.state_dir = os.path.join(self.dir, "state")
+        self.calls = []
+        self.audit = []
+        self.launches = []
+
+    def tearDown(self):
+        self.tmp.cleanup()
+
+    def _runner(self, cmd, timeout=None):
+        self.calls.append(list(cmd))
+        if cmd and cmd[0] == "ssh-keygen":
+            priv = cmd[cmd.index("-f") + 1]
+            with open(priv, "w") as fh:
+                fh.write("-----BEGIN OPENSSH PRIVATE KEY-----\nFAKE\n")
+            os.chmod(priv, 0o600)
+            with open(priv + ".pub", "w") as fh:
+                fh.write("ssh-ed25519 AAAAfake1 vm-key\n")
+            return FakeResult(0, "", "")
+        if cmd and cmd[0] == "genisoimage":
+            out = cmd[cmd.index("-output") + 1]
+            with open(out, "wb") as fh:
+                fh.write(b"ISO")
+            return FakeResult(0, "", "")
+        return FakeResult(0, "", "")
+
+    def _launcher(self, cmd):
+        self.launches.append(list(cmd))
+        return FakeProc(alive=True)
+
+    def make_exec(self, env_extra=None):
+        env = {"CHV_EGRESS_PROXY": "http://10.0.0.1:8888",
+               "CHV_HOST_KEY_MODE": "provisioned",
+               "CHV_SSH_FORWARD": "1"}
+        if env_extra:
+            env.update(env_extra)
+        ex = CloudHypervisorExecutor(
+            binary=self.binary, ch_remote=self.ch_remote,
+            kernel=self.kernel, rootfs=self.rootfs,
+            ssh_key=self.ssh_key, kvm_path=self.kvm,
+            cpuinfo_path=self.cpuinfo, state_dir=self.state_dir,
+            runner=self._runner, launcher=self._launcher,
+            api_client=lambda s, m, p, payload=None: (200, {}),
+            sleeper=lambda s: None, env=env)
+        ex.audit_callback = lambda e, t, d, k=None: self.audit.append(
+            (e, t.get("id") if isinstance(t, dict) else t, d, k))
+        return ex
+
+    def test_wake_with_task_gitea_sync_writes_all_six_to_seed(self):
+        ex = self.make_exec()
+        task = {"id": "sync1", "gitea_sync": dict(FAKE_SYNC)}
+        out = ex.wake_vm(task)
+        self.assertEqual(out["state"], "running")
+        text = _seed_user_text(self.state_dir, "chv-sync1")
+        self.assertNotIn("runcmd", yaml.safe_load(text))
+        guest_text, perms = _guest_env_lines(text)
+        self.assertEqual(perms, "0600")
+        for key, value in FAKE_SYNC.items():
+            self.assertIn("%s=%s" % (key, value), guest_text)
+        # seed.iso 已制盘且 0600。
+        seed_iso = os.path.join(self.state_dir, "chv-sync1", "seed.iso")
+        self.assertTrue(os.path.exists(seed_iso))
+        self.assertEqual(oct(os.stat(seed_iso).st_mode & 0o777), "0o600")
+
+    def test_wake_with_config_env_sync(self):
+        ex = self.make_exec(env_extra={
+            "CHV_GITEA_URL": "https://gitea.tose.top",
+            "CHV_GITEA_USER": "admin",
+            "CHV_GITEA_TOKEN": "fake-token-123",
+            "CHV_SYNC_REPO": "admin/chv-sync-test",
+            "CHV_SYNC_BRANCH": "main"})
+        self.assertEqual(ex.gitea_sync_env["SYNC_REPO"],
+                         "admin/chv-sync-test")
+        out = ex.wake_vm({"id": "sync2"})
+        self.assertEqual(out["state"], "running")
+        guest_text, _ = _guest_env_lines(
+            _seed_user_text(self.state_dir, "chv-sync2"))
+        self.assertIn("GITEA_TOKEN=fake-token-123", guest_text)
+        self.assertIn("SYNC_BRANCH=main", guest_text)
+
+    def test_wake_partial_sync_fails_closed_before_launch(self):
+        ex = self.make_exec()
+        task = {"id": "sync3", "gitea_sync": {
+            "GITEA_URL": "https://gitea.tose.top",
+            "SYNC_REPO": "admin/chv-sync-test"}}
+        with self.assertRaises(ChvFailure) as ctx:
+            ex.wake_vm(task)
+        self.assertEqual(ctx.exception.kind, "gitea_sync_incomplete")
+        self.assertEqual(self.launches, [])
+        self.assertFalse(os.path.exists(
+            os.path.join(self.state_dir, "chv-sync3", "seed.iso")))
+        kinds = [a[0] for a in self.audit]
+        self.assertIn("vm_failed", kinds)
+
+    def test_wake_partial_sync_from_config_also_fails_closed(self):
+        ex = self.make_exec(env_extra={
+            "CHV_GITEA_URL": "https://gitea.tose.top"})
+        with self.assertRaises(ChvFailure) as ctx:
+            ex.wake_vm({"id": "sync4"})
+        self.assertEqual(ctx.exception.kind, "gitea_sync_incomplete")
+        self.assertEqual(self.launches, [])
+
+    def test_wake_without_sync_writes_no_guest_env(self):
+        ex = self.make_exec()
+        out = ex.wake_vm({"id": "plain1"})
+        self.assertEqual(out["state"], "running")
+        parsed = yaml.safe_load(
+            _seed_user_text(self.state_dir, "chv-plain1"))
+        self.assertEqual(len(parsed["write_files"]), 2)
+
+    def test_build_ssh_command_after_wake_sources_guest_env(self):
+        ex = self.make_exec()
+        ex.wake_vm({"id": "sync5", "gitea_sync": dict(FAKE_SYNC)})
+        cmd = ex.build_ssh_command(
+            {"id": "sync5"}, ["true"],
+            extra_env={"GITEA_TOKEN": "fake-token-123"})
+        joined = " ".join(cmd)
+        self.assertNotIn("fake-token-123", joined)
+        self.assertIn("/etc/chv/guest-env", joined)
+        # 未 wake 投递的 VM 用密钥即拒绝。
+        with self.assertRaises(ChvFailure) as ctx:
+            ex.build_ssh_command(
+                {"id": "other"}, ["true"],
+                extra_env={"GITEA_TOKEN": "fake-token-123"})
+        self.assertEqual(ctx.exception.kind, "secret_env_not_delivered")
+
+    def test_wake_keyscan_mode_with_token_fails_closed(self):
+        ex = self.make_exec(env_extra={"CHV_HOST_KEY_MODE": "keyscan"})
+        with self.assertRaises(ChvFailure):
+            ex.wake_vm({"id": "sync6", "gitea_sync": dict(FAKE_SYNC)})
+        self.assertEqual(self.launches, [])
+
+
+# -- (5) worker ---------------------------------------------------------
+class WorkerGiteaSyncTest(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.db_path = os.path.join(self.tmp.name, "control.db")
+        from cloud.server import init_db
+        init_db(self.db_path)
+
+    def tearDown(self):
+        self.tmp.cleanup()
+
+    def _worker(self, executor, env_extra=None):
+        env = {"XCM_API_KEY": "test-placeholder"}
+        if env_extra:
+            env.update(env_extra)
+        return Worker(self.db_path, "/fake/host.py",
+                      executor=executor, env=env)
+
+    def test_gitea_sync_env_from_worker_env_and_task(self):
+        worker = self._worker(None, env_extra={
+            "CHV_GITEA_URL": "https://gitea.tose.top",
+            "CHV_GITEA_USER": "admin",
+            "CHV_GITEA_TOKEN": "env-tok",
+            "CHV_SYNC_REPO": "admin/chv-sync-test"})
+        out = worker._gitea_sync_env({"id": "t1"})
+        self.assertEqual(out["GITEA_TOKEN"], "env-tok")
+        out2 = worker._gitea_sync_env(
+            {"id": "t1", "gitea_sync": {"GITEA_TOKEN": "task-tok"}})
+        self.assertEqual(out2["GITEA_TOKEN"], "task-tok")
+        self.assertEqual(out2["SYNC_REPO"], "admin/chv-sync-test")
+        worker2 = self._worker(None)
+        self.assertEqual(worker2._gitea_sync_env({"id": "t1"}), {})
+
+    def test_run_attempt_merges_sync_env_only_for_chv(self):
+        import tempfile as _tf
+        case_dir = _tf.mkdtemp()
+        binary = _write(os.path.join(case_dir, "cloud-hypervisor"))
+        ch_remote = _write(os.path.join(case_dir, "ch-remote"))
+        kernel = _write(os.path.join(case_dir, "vmlinux"))
+        rootfs = _write(os.path.join(case_dir, "disk.raw"), b"R" * 100)
+        ssh_key = _write(os.path.join(case_dir, "id_chv"))
+        kvm = _write(os.path.join(case_dir, "kvm"))
+        cpuinfo = os.path.join(case_dir, "cpuinfo")
+        with open(cpuinfo, "w") as fh:
+            fh.write("flags : fpu vmx sse\n")
+        ex = CloudHypervisorExecutor(
+            binary=binary, ch_remote=ch_remote, kernel=kernel,
+            rootfs=rootfs, ssh_key=ssh_key, kvm_path=kvm,
+            cpuinfo_path=cpuinfo,
+            state_dir=os.path.join(case_dir, "state"),
+            runner=lambda cmd, timeout=None: FakeResult(0, "", ""),
+            launcher=lambda cmd: FakeProc(alive=True),
+            api_client=lambda s, m, p, payload=None: (200, {}),
+            sleeper=lambda s: None,
+            env={"CHV_EGRESS_PROXY": "http://10.0.0.1:8888",
+                 "CHV_HOST_KEY_MODE": "provisioned",
+                 "CHV_SSH_FORWARD": "1"})
+        seen = {}
+        orig_dispatch = ex.dispatch_task
+
+        def fake_dispatch(task, extra_env=None, model_provider=None):
+            seen["extra_env"] = dict(extra_env or {})
+            return {"executor": "cloud-hypervisor", "task_id": task["id"],
+                    "status": "completed", "stdout": "", "stderr": "",
+                    "returncode": 0, "host_status": "completed",
+                    "usage": None}
+        ex.dispatch_task = fake_dispatch
+        worker = self._worker(ex, env_extra={
+            "CHV_GITEA_URL": "https://gitea.tose.top",
+            "CHV_GITEA_USER": "admin",
+            "CHV_GITEA_TOKEN": "fake-token-123",
+            "CHV_SYNC_REPO": "admin/chv-sync-test"})
+        worker._ensure_gateway = lambda task: (None, {})
+        task = {"id": "w1", "project_id": "p1", "prompt": "做事"}
+        result, error = worker._run_attempt(task)
+        self.assertIsNone(error)
+        self.assertEqual(result["status"], "completed")
+        self.assertEqual(seen["extra_env"]["GITEA_TOKEN"],
+                         "fake-token-123")
+        self.assertEqual(seen["extra_env"]["SYNC_REPO"],
+                         "admin/chv-sync-test")
+        worker.close()
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/cloud/worker.py b/cloud/worker.py
index d3a41b6..49c2d04 100644
--- a/cloud/worker.py
+++ b/cloud/worker.py
@@ -2575,6 +2575,25 @@ class Worker:
         }
         return "sub2api", env
 
+    def _gitea_sync_env(self, task):
+        """Gitea 同步变量（CHV guest-env 集成）：任务 gitea_sync
+        覆盖宿主 CHV_GITEA_* 配置（见 gitea_sync.extract_...）。
+
+        只读本任务与本 worker 的 self._env（默认 os.environ），
+        绝不硬编码任何值、不读其它任务、不写日志。返回空 dict
+        即本次启动不同步；完整性校验不在这里做——执行器
+        wake_vm 在起 VMM 前 fail-closed（gitea_sync_incomplete），
+        worker 只负责把变量带进 extra_env。
+        注意：tasks 表没有 JSON/元数据列，DB 往返会丢任务 dict
+        的 gitea_sync；生产主来源是宿主 CHV_GITEA_* 环境变量。"""
+        from cloud.chv.gitea_sync import (
+            config_gitea_sync_env,
+            extract_gitea_sync_env,
+        )
+        return extract_gitea_sync_env(
+            task=task,
+            config_sync=config_gitea_sync_env(self._env))
+
     def _ensure_gateway(self, task):
         """任务 dict 上的网关缓存：已算过直接取，否则算一次并存回。
 
@@ -4684,6 +4703,14 @@ class Worker:
                   message="worker exec start: %s" % _exec_detail)
         try:
             gateway_provider, gateway_env = self._ensure_gateway(task)
+            if isinstance(self.executor, CloudHypervisorExecutor):
+                # CHV guest-env 集成：Gitea 同步变量随 extra_env
+                # 进 wake_vm（密钥走 seed，boot 变量也走 seed；
+                # 见 gitea_sync）。只对 CHV 合并——Docker/Local
+                # 的密钥处理口径不同（-e/子进程环境），不在本轮
+                # 改动，避免 GITEA_TOKEN 经其它通道外泄。
+                gateway_env = _merge_env(
+                    gateway_env, self._gitea_sync_env(task))
             if self._use_popen():
                 if goal_mode and task.get("_goal_resume_breakpoint"):
                     # G10 断点：无 --goal-text，不开新循环。