sudo mkdir /opt/camunda-bpm-tomcat-7.10.0 && sudo wget -O- https://camunda.org/release/camunda-bpm/tomcat/7.10/camunda-bpm-tomcat-7.10.0.tar.gz | tar -xz -C /opt/camunda-bpm-tomcat-7.10.0

sudo adduser --system --no-create-home --group camunda

sudo chown -R camunda:camunda /opt/camunda-bpm-tomcat-7.10.0

Скопировать camunda.service в /lib/systemd/system и выполнить: systemctl enable camunda