96 lines
3.4 KiB
Python
96 lines
3.4 KiB
Python
"""
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按组挂载 Git 资源（只读） + 自动建用户加组
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资源路径 /home/zhangyi/jupyter-collection
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控制文件 /home/zhangyi/jupyter-collection/.hub/resource_map.ini
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"""
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import os, grp, pwd, shutil, subprocess, configparser
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from pathlib import Path
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from jupyterhub.spawner import Spawner
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# ---------- 路径常量 ----------
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SHARED_ROOT = Path("/home/zhangyi/jupyter-collection") # Git 资源仓库
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USER_HOME = Path("/home/jupyter-{username}") # 用户家目录模板
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CTRL_FILE = SHARED_ROOT / ".hub" / "resource_map.ini" # 组-资源-用户映射
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# ---------- 工具：读控制表 ----------
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def load_ctrl():
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"""返回 (组->资源, 组->用户) 两个 dict"""
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cfg = configparser.ConfigParser()
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cfg.read(CTRL_FILE)
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res_map = {g: [r.strip() for r in v.split(",")] for g, v in cfg.items("map")}
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usr_map = {g: [u.strip() for u in v.split(",")] for g, v in cfg.items("users")}
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return res_map, usr_map
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# ========== 最早钩子：预创建家目录 ==========
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def ensure_homedir(spawner):
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"""systemd 启动前保证目录存在且属主正确"""
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username = spawner.user.name
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user_dir = Path(str(USER_HOME).format(username=username))
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if not user_dir.exists():
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user_dir.mkdir(mode=0o700, parents=True)
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shutil.chown(user_dir, user=username, group=username)
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c.Spawner.pre_spawn_hook = ensure_homedir
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# ========== 认证后钩子：自动建用户+加组 ==========
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def ensure_user_and_groups(authenticator, handler, authentication):
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username = authentication['name']
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res_map, usr_map = load_ctrl()
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wanted_groups = [g for g, users in usr_map.items() if username in users]
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if not wanted_groups:
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return authentication
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for g in wanted_groups: # 确保组存在
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subprocess.run(["groupadd", "-f", g], check=False)
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if subprocess.run(["id", "-u", username], capture_output=True).returncode != 0:
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subprocess.run([
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"useradd", "-m", "-s", "/bin/bash",
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"-d", str(USER_HOME).format(username=username), username
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], check=False)
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for g in wanted_groups: # 加组
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subprocess.run(["usermod", "-aG", g, username], check=False)
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return authentication
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c.Authenticator.post_auth_hook = ensure_user_and_groups
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# ========== spawn 钩子：清 shared + 只读挂载 ==========
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def prepare_user(spawner):
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username = spawner.user.name
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user_dir = Path(str(USER_HOME).format(username=username))
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# 仅清 shared，保留用户其它文件
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shared = user_dir / "shared"
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if shared.exists():
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shutil.rmtree(shared)
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shared.mkdir(parents=True, exist_ok=True)
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shutil.chown(shared, user=username, group=username)
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# 读取控制表
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res_map, _ = load_ctrl()
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# 获取用户系统组
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try:
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pwnam = pwd.getpwnam(username)
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gid_list = os.getgrouplist(username, pwnam.pw_gid)
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except (KeyError, OSError):
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return
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user_groups = {grp.getgrgid(g).gr_name for g in gid_list}
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# 组装 bind_mounts（SystemdSpawner 语法）
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bind_list = []
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for grp_name in user_groups:
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for res in res_map.get(grp_name, []):
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res_path = SHARED_ROOT / res
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if res_path.is_dir():
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bind_list.append({
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'source': str(res_path),
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'target': str(shared / res),
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'read-only': True,
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})
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spawner.bind_mounts = bind_list
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c.Spawner.pre_spawn_hook = prepare_user |