Not all systems come with a package manager. For these systems you can install CFEngine by means of a generic binary tarball.

First download the binary onto the host.

Next unpack the archive. For the 64 bit tarball use:

tar --gunzip --extract --directory / --file ./cfengine-nova-3.21.0-1.x86_64.pkg.tar.gz

Otherwise, for 32 bit tarball, use:

tar --gunzip --extract --directory / --file ./cfengine-nova-3.21.0-1.i386.pkg.tar.gz

Generate a keypair for the client:

/var/cfengine/bin/cf-key

Then install the systemd units:

for each in $(ls /var/cfengine/share/usr/lib/systemd/system); do
  cp /var/cfengine/share/usr/lib/systemd/system/${each} /etc/systemd/system/${each}
  chmod 664 /etc/systemd/system/${each}
done
systemctl daemon-reload

Next enable the necessary service units:

systemctl enable cf-execd
systemctl enable cf-monitord
systemctl enable cf-serverd
systemctl enable cfengine3

Finally, bootstrap the agent, and start the CFEngine services:

export POLICY_SERVER="myhub";

# Bootstrap to hub
/var/cfengine/bin/cf-agent --bootstrap ${POLICY_SERVER}

# Start the cfengine3 service.
systemctl start cfengine3