以非特权用户身份运行时，launchd 脚本无法使用 StandardOutPath 到 /var/log

Question

我创建了一个 LaunchDaemon 脚本来为我们的 git repos 运行备份。我想以特定用户的身份运行该进程（git），并将 Std 和 Err 日志输出到/var/log

当 launchd 尝试创建日志时，我得到的权限被拒绝。

Aug 18 10:15:00 server com.apple.launchd[1] (com.gitlab.backup[40752]): open("/var/log/gitlab_backup.log", ...): 13: Permission denied
Aug 18 10:15:00 server com.apple.launchd[1] (com.gitlab.backup[40752]): open("/var/log/gitlab_backup_err.log", ...): 13: Permission denied

我原本希望 launchd 能够创建日志，并将 chown 分配给密钥中指定的用户UserName

唯一的选项是登录到用户具有写权限的文件夹吗？

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.stardotstar.gitlab.backup</string>
    <key>UserName</key>
    <string>git</string>
    <key>WorkingDirectory</key>
    <string>/Users/git/gitlab</string>
    <key>EnvironmentVariables</key>
    <dict>
        <key>RAILS_ENV</key>
        <string>production</string>
    </dict>
    <key>ProgramArguments</key>
    <array>
        <string>bundle</string>
        <string>exec</string>
        <string>rake</string>
        <string>gitlab:backup:create</string>
    </array>
    <key>StartCalendarInterval</key>
    <dict>
        <key>Hour</key>
        <integer>10</integer>
        <key>Minute</key>
        <integer>20</integer>
    </dict>
    <key>StandardOutPath</key>
    <string>/var/log/gitlab/gitlab_backup.log</string>
    <key>StandardErrorPath</key>
    <string>/var/log/gitlab/gitlab_backup_err.log</string>
</dict>
</plist>