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)
by ensuring all basedirs, plugin paths and extra
paths are handled as absolute paths and are checked
to not add any doubles.
This fixes the corner case where e.g. the user has
an additional plugin path configured to a dir
relative to his playbooks or inventory location,
which also matches the _plugin subdir relative to
one of the basedirs in the play.
For most plugins this doesn't show as an obvious issue
except for callback_plugins, which might fire more
than once. Other plugins (inventory and template
plugins) might unnecessarily be ran twice.
e.g. ansible.cfg has
callback_plugins = ./plays/callback_plugins
and plays/ contains a playbook file:
.
├── ansible.cfg
├── inventory
└── plays
├── callback_plugins
│ └── timestamp.py
└── site.yml
modified: lib/ansible/utils/plugins.py
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.
to ensure consistent behavior, hosts should look like this:
hosts: webservers:&boston:!rack42
So when applying the host selectors, run those without the "&" first,
then the &s, then the !s.
Closes#3500
If SELinux is enabled and mcstrans is running, daemons are restarted on each
run. After further debugging, it turn out that ansible compare the untranslated
level 's0' with the translated level 'SystemLow' due to mcstrans being running,
which trigger a handler since this is considered as a change.
and the _meta hash contains a "hostvars", don't call --host hostname for any elements
and just serve them directly for performance enhancements with the external inventory
script and a large number of hosts.
Added support of an optional init method for action modules like rsync that need to alter the connection and other inject data before it's established.
Treat errno 13 (permission denied) as one of the special cases in
atomic_move.
This type of error can occur because of sudo'ing to non-root user.
Fixes#3705
Since ansible 1.2, it became possible to place a host_vars
directory in the same directory as a playbook, making it possible
to keep host_vars local to that playbook there. However, due to
python's os.path.dirname, a action such as:
$ ansible-playbook pb.yml
..would not pick up the host_vars as os.path.dirname("pb.yml")
returns "", unlike the unix command dirname that would return
".". Substituting "pb.yml" on the command line with "./pb.yml"
would do the trick, but is not always intuitive. This patch
solves the problem until python solves issue18547 [1].
[1] http://bugs.python.org/issue18547
-c ssh is preferred in most cases if you have ControlPersist available, otherwise if you are comfortable you
can turn off recording while leaving host key checking on, etc.
Use case: e.g. dual homed hosts on production en management network
The inventory_hostname is the regular host name and matches the
dns name on the production network; ansible connects to the host
through a management network; the dns name on the management network
is standardized and equals ${inventory_hostname}-mgt.mynetwork.com
Now this can be configured as the default in group_vars/all:
ansible_ssh_host: {{ inventory_hostname + '-mgt.mynetwork.com' }}
str() throws an UnicodeEncodeError for code points that cannot be
represented in 7-bit ASCII. This makes it impossible to use any
non-ASCII characters in module arguments. Using encode('utf-8')
gives the desired result.
* Moved the --list-hosts option that is common to both `ansible` and
`ansible-playbook` into utils/__init__.py (corrects a FIXME)
* Wrote new help text for the --list-hosts option that makes sense
for both of the commands that it applies to
* Changed the usage argument in `ansible-playbook` so that it is
setup in the base_parser method the same way that it is in
the `ansible` executable
* Updated the help text for several options to correct typos,
clarify meaning, improve readability, or fix grammatical errors.
In the case of `ansible-pull`, I changed the help text so that
it adheres to the same standards as the other executables.
The action doesn't actually change anything on a system, so setting
the status to changed is wrong. add_host is much like set_fact in that
regard.
Since changed is False by default, there is no need to explicity set
it, so just create an empty dict for result and add to it from there.
ansible.constants was calling expanduser (by way of shell_expand_path)
on the entire configured value for the library and *_plugins
configuration values, but these values have always been interpreted as
multiple directories separated by os.pathsep. Thus, if you supplied
multiple directories for one of these values, typically only the first
(at least on *nix) would have e.g. "~" expanded to HOME.
Now PluginLoader does expansion on each individual path in each of
these variables.
A host pattern of the form '!foo' by itself does not work, but
'all:!foo' does. If the first pattern is a negation, this commit
automatically prepends 'all'.
Signed-off-by: martin f. krafft <madduck@madduck.net>
name is used throughout Ansible, it's the "standard". This change
applies that standard to the add_host routine and updates the docs to
reflect that. Related to https://github.com/ansible/ansible/pull/3254
commit c36b66dc952dfff91043ecbca56cf3f1f8f00703
Merge: 240d7bf f4cf934
Author: Michael DeHaan <michael@ansibleworks.com>
Date: Tue Jun 18 13:04:51 2013 -0400
Merge branch 'unevaluated-vars' of git://github.com/lorin/ansible into lorin_undefined
Conflicts:
lib/ansible/runner/__init__.py
commit f4cf93436767f73b62a16067ab5e628830045896
Merge: 2531440 07a1365
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Thu Jun 6 11:07:41 2013 -0400
Merge branch 'devel' into unevaluated-vars
commit 253144045cbafd7d72836f1017c62ac4ba623186
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Thu Jun 6 11:06:37 2013 -0400
Fail template from file on undefined vars
If config option is set, raise an exception if templating from a
file and a variable is undefined.
commit aecb71d8b75257f0f3e11a9b176fc3737aecef8d
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Wed Jun 5 17:12:12 2013 -0400
Add fail_on_undefined flag
Add a fail_on_undefined flag to the template and template_from_string methods.
If this flag is true, then re-raise the ninja2.excpetions.UndefinedError instead of
swallowing it.
commit cbb1808f0585f01536240aee05a1bfd06c4b4647
Merge: d4bbf49 41425fb
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Wed Jun 5 16:14:12 2013 -0400
Merge branch 'devel' into unevaluated-vars
commit d4bbf492b0b63c789d66ab60d0ec634d100fca82
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Mon Jun 3 19:46:13 2013 -0400
template: Raise UndefinedError exception
In template_from_string, raise an undefined error if it occurs.
Have the caller catch it and throw an AnsibleUndefinedVariable
commit c94780280515f1f3756fdc429b2b1e87b365e9b7
Merge: 8d919d6 be33bcf
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Mon Jun 3 10:09:43 2013 -0400
Merge branch 'devel' into unevaluated-vars
commit 8d919d6c97b28a42f47ca7248c542695baf6175f
Merge: 0f68ad8 b8630d2
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Thu May 30 16:27:48 2013 -0400
Merge branch 'devel' into unevaluated-vars
commit 0f68ad8193ac17488e339a258f8c63fdae399c26
Author: Lorin Hochstein <lorin@nimbisservices.com>
Date: Thu May 30 14:32:03 2013 -0400
Optionally fail task on undefined variables
This patch introduces a new configuration option called
error_on_undefined_vars, which defaults to false.
If this option is set to true, then a task which has unevaluated
variables in its arguments will fail instead of running. Output looks
like this:
TASK: [set rabbitmq password] *************************************************
fatal: [10.20.0.7] => Undefined variables: rabbitmq_user, rabbitmq_password
hardcoded lists in ansible code, just add WITH_ITEMS_USES_LIST in a
comment anywhere, and of course, support recieving params as list.
Signed-off-by: Brian Coca <briancoca+dev@gmail.com>
Previous commit c3659741 expanded sudo_user during task construction,
but this is too early as it does not pick up variables set during
the play.
This commit moves sudo_user expansion to the runner after variables
have been merged.
e.g. db[01:10:3]node-[01:10]
- to do this we split off at the first [...] set, getting the list
of hosts and then repeat until none left.
- also add an optional third parameter which contains the step. (Default: 1)
so range can be [01:10:2] -> 01 03 05 07 09
