[Unit]
Description=step-ca
Documentation=https://smallstep.com/docs/step-ca
Documentation=https://smallstep.com/docs/step-ca/certificate-authority-server-production
After=syslog.target network.target

[Service]
Type=simple
User={{ step_ca_user }}
Group={{ step_ca_group }}
Environment=STEPPATH={{ step_ca_config_dir }}
WorkingDirectory={{ step_ca_config_dir }}
ExecStart=/bin/sh -c '{{ step_ca_binary }} {{ step_ca_config_dir }}/config/ca.json --password-file={{ step_ca_config_dir }}/config/password.txt'
ExecReload=/bin/kill --signal HUP $MAINPID
Restart=on-failure
RestartSec=10
TimeoutStopSec=30
StartLimitInterval=30
StartLimitBurst=3

; Process capabilities & privileges
AmbientCapabilities=CAP_NET_BIND_SERVICE
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
SecureBits=keep-caps
NoNewPrivileges=yes


; Sandboxing
ProtectSystem=full
ProtectHome=true
RestrictNamespaces=true
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
PrivateTmp=true
PrivateDevices=true
ProtectClock=true
ProtectControlGroups=true
ProtectKernelTunables=true
ProtectKernelLogs=true
ProtectKernelModules=true
LockPersonality=true
RestrictSUIDSGID=true
RemoveIPC=true
RestrictRealtime=true
SystemCallFilter=@system-service
SystemCallArchitectures=native
MemoryDenyWriteExecute=true
ReadWriteDirectories=/etc/step-ca/db

[Install]
WantedBy=multi-user.target