Operate on that play attribute to make things faster for larger
inventories. Instead of making a round trip through inventory.list_hosts
and working through some lengthy list comprehensions over and over
again, calculate the potenital hosts for a play once, then reduce from
it the unavailable hosts when necessary.
Also moves how the %fail is done. The host count is a play level count
of available hosts, which then is compared after each task to the
current number of available hosts for the play. This used to get a new
count every task which was also time expensive.
The _list_available_hosts call can be lengthy, and in the case where
gather_facts is disabled the call is pointless. So re-arrange the logic
to return early from _do_setup_step when gather_facts is false.
Users of these features should use "when:" as documented at docs.ansible.com.
Similarly, include + with_items has been removed. The solution is to loop
inside the task files, see with_nested / with_together, etc.
Using ANSIBLE_ROLE_PATH environment variable or role_path in ansible.cfg
can configure paths where roles will be searched for
extra paths will only be used as a backup once regular locations are exhausted
Previously, includes had to receive variables via a special 'vars'
field. With this patch, the include syntax becomes a more natural
datastructure without special fields and is more akin to the way
role includes/dependencies work.
Tested with the following playbook:
---
- hosts: localhost
connection: local
tasks:
- { include: inc1.yml, a: 1 }
- include: inc2.yml
b: 2
- include: inc3.yml
with_items:
- x
- y
- z
Fixes#3481
Still compatible with user: but deprecating it so we can have
a matching remote_user: in tasks, cannot be user: because of the
module of the same name. #3932
Signed-off-by: Brian Coca <briancoca+dev@gmail.com>
Reported by Rumen:
TASK: [fail FAIL] *************************************************************
skipping: [hostname.com]
failed: [hostname.com] => {"failed": true}
msg: Failed as requested from task
Traceback (most recent call last):
File "/usr/local/bin/ansible-playbook", line 268, in <module>
sys.exit(main(sys.argv[1:]))
File "/usr/local/bin/ansible-playbook", line 208, in main
pb.run()
File "/Library/Python/2.7/site-packages/ansible/playbook/__init__.py", line 262, in run
if not self._run_play(play):
File "/Library/Python/2.7/site-packages/ansible/playbook/__init__.py", line 580, in _run_play
if (hosts_count - len(host_list)) > int((play.max_fail_pct)/100.0 * hosts_count):
TypeError: object of type 'NoneType' has no len()
The play was just checking for the presence of the keyword in the
YAML datastructure, and not the value of the field, so doing something
like variable substitution was always causing the play to be accelerated
* Default variables are now fed directly into roles, just like the
other variables, so that roles see their unique values rather
than those set at the global level.
* Role dependency duplicates are now determined by checking the params used
when specifying them as dependencies rather than just on the name of the
role. For example, the following would be included twice without having
to specify "allow_duplicates: true":
dependencies:
- { role: foo, x: 1 }
- { role: foo, x: 2 }
The 'always_run' task clause allows one to execute a task even in
check mode.
While here implement Runner.noop_on_check() to check if a runner
really should execute its task, with respect to check mode option
and 'always_run' clause.
Also add the optional 'jinja2' argument to check_conditional() :
it allows to give this function a jinja2 expression without exposing
the 'jinja2_compare' implementation mechanism.
Tests `test_playbook_undefined_varsX_fail` check if ansible detects
undefined variables when `error_on_undefined_vars` is enabled. These
tests fail without "Improve behavior with error_on_undefined_vars
enabled" patch.
Tests `test_playbook_undefined_varsX_ignore` check if ansible ignores
undefined variables when `error_on_undefined_vars` is disabled.
Also modify PlayBook._run_task_internal() so error_on_undefined_vars is
testable.
The block that added the original list of roles was indented too far,
and was only being reached if a role had dependencies. This resulted
in roles without dependencies from being added to the list of roles.
Credit goes to looped for reporting and diagnosing the issue.
Fixes#3686
Dependencies are enabled by adding a new directory/file named
meta/main.yml to the role. The format of the dependencies are:
dependencies:
- { role: foo, x: 1, y: 2 }
- { role: bar, x: 3, y: 4 }
...
Dependencies inherit variables as they are seen at the time of the
dependency inclusion. For example, if foo(x=1, y=2) has a dependency
on bar(x=3,z=4), then bar will have variables (x=3,y=2,z=4).
Different roles can have dependencies on the same role, and this
variable inheritence allows for the reuse of generic roles quite easily.
For example:
Role 'car' has the following dependencies:
dependencies:
- { role: wheel, n: 1 }
- { role: wheel, n: 2 }
- { role: wheel, n: 3 }
- { role: wheel, n: 4 }
Role 'wheel' has the following dependencies:
dependencies:
- { role: tire }
- { role: brake }
The role 'car' is then used as follows:
- { role: car, type: honda }
And tasks/main.yml in each role simply contains the following:
- name: {{ type }} whatever {{ n }}
command: echo ''
TASK: [honda tire 1]
TASK: [honda brake 1]
TASK: [honda wheel 1]
TASK: [honda tire 2]
TASK: [honda brake 2]
TASK: [honda wheel 2]
TASK: [honda tire 3]
TASK: [honda brake 3]
TASK: [honda wheel 3]
TASK: [honda tire 4]
TASK: [honda brake 4]
TASK: [honda wheel 4]
TASK: [I'm a honda] <- (this is in roles/car/tasks/main.yml)
Previous patch was reverted due to the fact that there was an issue
with the results not always being a dictionary (they're sometimes
a unicode string, ie. when the with_items is used with yum). This
minor change corrects that by checking for a dict object.
Jesse Keating
James Tanner
Paul Durivage
Rutger Spiertz
Michael DeHaan
Michael DeHaan
Michael Vogt
Alan Descoins
Serge van Ginderachter
Thomas Omans
James Cammarata
bennojoy
Hiroaki Nakamura
Brian Coca
Kavin Kankeshwar
kavink
smoothify
Wincent Colaiuta
Jocelyn Jaubert
Stoned Elipot
Kavin Kankeshwar
Petr Svoboda
René Moser