Default variables

Job scheduler configuration

atd_enabled

Enable or disable support for at and batch commands. Setting this variable to False will uninstall the at package.

atd_enabled: True
atd_default_allow

List of default UNIX user accounts which are allowed to use at and batch commands. If this list is empty and atd_allow is also empty, any account is allowed to use these commands.

atd_default_allow: [ '{{ (ansible_ssh_user
                          if (ansible_ssh_user|d() and
                              ansible_ssh_user != "root")
                          else lookup("env","USER")) }}' ]
atd_allow

List of UNIX user accounts which are allowed to use at and batch. If this list is empty any user can use them as long as the /etc/at.deny file is present, otherwise only the superuser is granted access. This list is meant to be used for user accounts on all hosts in the cluster.

atd_allow: []
atd_group_allow

List of UNIX user accounts which are allowed to use at and batch. If this list is empty any user can use them as long as the /etc/at.deny file is present, otherwise only the superuser is granted access. This list is meant to be used for user accounts on a group of hosts in the cluster, only one group is supported at a time.

atd_group_allow: []
atd_host_allow

List of UNIX user accounts which are allowed to use at and batch. If this list is empty any user can use them as long as the /etc/at.deny file is present, otherwise only the superuser is granted access. This list is meant to be used for user accounts on specific hosts.

atd_host_allow: []
atd_default_deny

List of default UNIX user accounts which are denied access to at and batch commands.

atd_default_deny: []
atd_deny

List of UNIX user accounts which are denied access to at and batch commands.

atd_deny: []

Batch job scheduler configuration

atd_batch_base

Base number of CPU threads that will be used to calculate minimum load average which prevents job execution.

atd_batch_base: '{{ ansible_processor_vcpus }}'
atd_multiplier_min

Minimum percentage of CPU load average boundary.

atd_multiplier_min: '80'
atd_multiplier_max

Maximum percentage of CPU load average boundary.

atd_multiplier_max: '100'
atd_batch_multiplier

This variable will be multiplied the by number of CPUs available on a host to modify the final CPU load average which prevents batch job execution.

atd_batch_multiplier: '{{ ((atd_multiplier_max | int |
                            random(atd_multiplier_min | int)) / 100) }}'
atd_batch_load

CPU load average which will prevent batch job execution and will hold the batch queue.

atd_batch_load: '{{ (ansible_local.atd.batch_load
                     if (ansible_local|d() and ansible_local.atd|d() and
                         ansible_local.atd.batch_load|d())
                     else ((atd_batch_base | float) *
                           (atd_batch_multiplier | float))) }}'
atd_interval_min

Minimum time between batch job execution in seconds.

atd_interval_min: '30'
atd_interval_max

Maximum time between batch job execution in seconds.

atd_interval_max: '120'
atd_batch_interval

Time in seconds between batch job execution.

atd_batch_interval: '{{ (ansible_local.atd.batch_interval
                         if (ansible_local|d() and ansible_local.atd|d() and
                             ansible_local.atd.batch_interval|d())
                         else (atd_interval_max | int |
                               random(atd_interval_min | int))) }}'