The inventory must define these hosts to run:

• cluster_machines: Set of hosts in the cluster
• hypervisors: Set of hosts to launch virtual machines
• observers: Set of hosts to observe the cluster (only the first is considering)
• standalone_machine: To define only the cluster is composed with one host (replace cluster_machines)

Prerequisite

This step is useful only for the installed hosts by a debian installer build with build_debian_iso.

The inventory must define these variables to run the step:

• apply_network_config: Boolean to apply the network configuration

• admin_ip_addr: IP address for SNMP

• cpumachinesnort: Range of allowed CPUs for no RT machines

• cpumachines: Range of allowed CPUs for machines (RT and no RT)

• cpumachinesrt: Range of allowed CPUs for RT machines

• cpuovs: Range of allowed CPUs for OpenVSwitch

• cpusystem: Range of allowed CPUs for the system

• cpuuser: Range of allowed CPUs for the user

• irqmask: Set the IRQBALANCE_BANNED_CPUS environment variable, see irqbalance manual

• logstash_server_ip: IP address for logstash-seapath alias in /etc/hosts

• main_disk: Main disk device to observe his temperature

• workqueuemask: The negation of the irqmask (= ~irqmask)