Description of problem:

The ha_cluster role can use the firewall role and the selinux role to manage port access.

#### `ha_cluster_manage_firewall`

boolean, default: false

Manage the `firewall high-availability service` as well as the `fence-virt port`.
When `ha_cluster_manage_firewall` is `true`, the `firewall high-availability
service` and `fence-virt port` are enabled.
When `ha_cluster_manage_firewall` is `false`, the `ha_cluster role` does not
manage the firewall.

NOTE: `ha_cluster_manage_firewall` is limited to *adding* ports.
It cannot be used for *removing* ports.
If you want to remove ports, you will need to use the firewall system
role directly.

NOTE: The version of the `ha_cluster` role is 1.7.5 or older,
the firewall was configured by default if the firewalld was available
when the `ha_cluster` role was executed. In the newer version,
it does not happen unless `ha_cluster_manage_firewall` is set to `true`.

#### `ha_cluster_manage_selinux`

boolean, default: false

Manage the ports belonging to the `firewall high-availability service` using
the selinux role.
When `ha_cluster_manage_selinux` is `true`, the ports belonging to the
`firewall high-availability service` are associated with the selinux port type
`cluster_port_t`.
When `ha_cluster_manage_selinux` is `false`, the `ha_cluster role` does not
manage the selinux.

NOTE: The firewall configuration is prerequisite for managing selinux. If the
firewall is not installed, managing selinux policy is skipped.

NOTE: `ha_cluster_manage_selinux` is limited to *adding* policy.
It cannot be used for *removing* policy.
If you want to remove policy, you will need to use the selinux system
role directly.