[Unit]
Description=__APP__ task queue service
After=network.target
After=postgresql.service
After=redis.service

[Service]
Type=simple
Restart=always
RestartSec=1
User=__APP__
Group=__APP__
StandardOutput=append:/var/log/__APP__/__APP___workers.log
StandardError=inherit
SyslogIdentifier=__APP___workers
EnvironmentFile=__INSTALL_DIR__/.env
Environment="FLASK_APP=fittrackee"
Environment="APP_SECRET_KEY="
Environment="APP_LOG="
Environment="UPLOAD_FOLDER="
Environment="DATABASE_URL="
Environment="UI_URL="
Environment="EMAIL_URL="
Environment="SENDER_EMAIL="
Environment="REDIS_URL="
WorkingDirectory=__INSTALL_DIR__/
ExecStart=__INSTALL_DIR__/venv/bin/flask worker --processes 2

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

# 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