| Parameter | Choices/Defaults | Configuration | Comments | 
                
                                                            | check_mode_markers 
                    boolean
                                                                 added in 2.9 |  |  ini entries:
                                                                 [defaults]check_mode_markers = no
env:ANSIBLE_CHECK_MODE_MARKERS | Toggle to control displaying markers when running in check mode. The markers are DRY RUNat the beggining and ending of playbook execution (when callingansible-playbook --check) andCHECK MODEas a suffix at every play and task that is run in check mode. | 
                            
                                                            | display_failed_stderr 
                    boolean
                                                                 added in 2.7 |  |  ini entries:
                                                                 [defaults]display_failed_stderr = no
env:ANSIBLE_DISPLAY_FAILED_STDERR | Toggle to control whether failed and unreachable tasks are displayed to STDERR (vs. STDOUT) | 
                            
                                                            | display_ok_hosts 
                    boolean
                                                                 added in 2.7 |  |  ini entries:
                                                                 [defaults]display_ok_hosts = yes
env:ANSIBLE_DISPLAY_OK_HOSTS | Toggle to control displaying 'ok' task/host results in a task | 
                            
                                                            | display_skipped_hosts 
                    boolean
                                                                 |  |  ini entries:
                                                                 [defaults]display_skipped_hosts = yes
env:DISPLAY_SKIPPED_HOSTS env:ANSIBLE_DISPLAY_SKIPPED_HOSTS | Toggle to control displaying skipped task/host results in a task | 
                            
                                                            | show_custom_stats 
                    boolean
                                                                 |  |  ini entries:
                                                                 [defaults]show_custom_stats = no
env:ANSIBLE_SHOW_CUSTOM_STATS | This adds the custom stats set via the set_stats plugin to the play recap | 
                            
                                                            | show_per_host_start 
                    boolean
                                                                 added in 2.9 |  |  ini entries:
                                                                 [defaults]show_per_host_start = no
env:ANSIBLE_SHOW_PER_HOST_START | This adds output that shows when a task is started to execute for each host |