systemd.conf.example

[Unit]
Description=appstore gunicorn daemon
After=network.target

[Service]
PIDFile=/run/gunicorn/appstore-pid
User=appstore
Group=appstore
WorkingDirectory=__INSTALL_DIR__
ExecStart=__INSTALL_DIR__/venv/bin/gunicorn -c __INSTALL_DIR__/gunicorn.py app:app
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s TERM $MAINPID
StandardOutput=append:/var/log/appstore/appstore.log
StandardError=inherit

# Sandboxing options to harden security
# Depending on specificities of your service/app, you may need to tweak these
# .. but this should be a good baseline
# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
RestrictNamespaces=yes
RestrictRealtime=yes
DevicePolicy=closed
ProtectClock=yes
ProtectHostname=yes
ProtectProc=invisible
ProtectSystem=full
ProtectControlGroups=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
LockPersonality=yes
SystemCallArchitectures=native
SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap @cpu-emulation
# @privileged # (not sure why this need to be removed...)

# Denying access to capabilities that should not be relevant for webapps
# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD
CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT
CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK
CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM
CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE
CapabilityBoundingSet=~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW
CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG


[Install]
WantedBy=multi-user.target