[Unit]
Description=Prometheus Bitcoin daemon on %I
After=network-online.target

[Service]
ExecStart=/usr/bin/pro-bitcoind -daemon \
                            -chain=%i \
                            -pid=/run/bitcoind-%i/bitcoind.pid \
                            -conf=/etc/bitcoin/bitcoin.conf \
                            -datadir=/var/lib/bitcoind

# Make sure the config directory is readable by the service user
PermissionsStartOnly=true
ExecStartPre=/bin/chgrp bitcoin /etc/bitcoin

# Process management
####################

Type=forking
PIDFile=/run/bitcoind-%i/bitcoind.pid
Restart=on-failure

# Directory creation and permissions
####################################

# Run as bitcoin:bitcoin
User=bitcoin
Group=bitcoin

# /run/bitcoind
RuntimeDirectory=bitcoind-%i
RuntimeDirectoryMode=0710

# /etc/bitcoin
ConfigurationDirectory=bitcoin
ConfigurationDirectoryMode=0710

# /var/lib/bitcoind
#StateDirectory=bitcoind
#StateDirectoryMode=0710

# Hardening measures
####################

# Provide a private /tmp and /var/tmp.
PrivateTmp=true

# Mount /usr, /boot/ and /etc read-only for the process.
ProtectSystem=full

# Deny access to /home, /root and /run/user
ProtectHome=true

# Disallow the process and all of its children to gain
# new privileges through execve().
NoNewPrivileges=true

# Use a new /dev namespace only populated with API pseudo devices
# such as /dev/null, /dev/zero and /dev/random.
PrivateDevices=true

# Deny the creation of writable and executable memory mappings.
MemoryDenyWriteExecute=true

[Install]
WantedBy=multi-user.target