45 lines
1.3 KiB
ReStructuredText
45 lines
1.3 KiB
ReStructuredText
Error Handling In Playbooks
|
|
===========================
|
|
|
|
Sometimes a command that returns 0 isn't an error. Sometimes a command might not always
|
|
need to report that it 'changed' the remote system. This section describes how to change
|
|
the default behavior of Ansible for certain tasks so output and error handling behavior is
|
|
as desired.
|
|
|
|
Ignoring Failed Commands
|
|
````````````````````````
|
|
|
|
.. versionadded:: 0.6
|
|
|
|
Generally playbooks will stop executing any more steps on a host that
|
|
has a failure. Sometimes, though, you want to continue on. To do so,
|
|
write a task that looks like this::
|
|
|
|
- name: this will not be counted as a failure
|
|
command: /bin/false
|
|
ignore_errors: yes
|
|
|
|
Overriding The Changed Result
|
|
`````````````````````````````
|
|
|
|
.. versionadded:: 1.3
|
|
|
|
When a shell/command or other module runs it will typically report
|
|
"changed" status based on whether it thinks it affected machine state.
|
|
|
|
Sometimes you will know, based on the return code
|
|
or output that it did not make any changes, and wish to override
|
|
the "changed" result such that it does not appear in report output or
|
|
does not cause handlers to fire::
|
|
|
|
tasks:
|
|
|
|
- shell: /usr/bin/billybass --mode="take me to the river"
|
|
register: bass_result
|
|
changed_when: "bass_result.rc != 2"
|
|
|
|
# this will never report 'changed' status
|
|
- shell: wall 'beep'
|
|
|
|
|
|
|