mirror of
https://github.com/retspen/webvirtcloud
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webvirt-novncd and webvirt-socketiod get read-only system directories, no access to /home and /root, no new privileges, no kernel tunables, modules or cgroups, and only Unix, IPv4 and IPv6 sockets; socketiod also a private /tmp. novncd keeps the shared /tmp, where a VM's VNC Unix socket may be. They keep what they need: a pty and its console worker, TCP and Unix sockets, ssh with its configuration, writes under /srv/webvirtcloud and the service user's ~/.ssh. The units installed by the update steps bring this.
30 lines
902 B
Desktop File
30 lines
902 B
Desktop File
[Unit]
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Description=WebVirtCloud serial console (socketiod; refuses connections unless SERIAL_CONSOLE_ENABLED)
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Wants=network-online.target
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After=network-online.target
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[Service]
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User=www-data
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Group=www-data
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WorkingDirectory=/srv/webvirtcloud
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EnvironmentFile=-/etc/default/webvirtcloud
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ExecStart=/srv/webvirtcloud/venv/bin/python3 /srv/webvirtcloud/console/socketiod
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# gunicorn stops its worker itself; the consoles end with their ptys
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KillMode=mixed
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Restart=on-failure
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RestartSec=10
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# Sandbox: what the console daemons need (a pty and its worker, TCP and
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# Unix sockets, ssh, writes under /srv and the user's ~/.ssh) and no more
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NoNewPrivileges=yes
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PrivateTmp=yes
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ProtectSystem=full
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ProtectHome=yes
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ProtectKernelTunables=yes
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ProtectKernelModules=yes
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ProtectControlGroups=yes
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RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
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RestrictSUIDSGID=yes
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LockPersonality=yes
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[Install]
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WantedBy=multi-user.target
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