The flag new_pb_basedir is not being utilized in Inventory._get_hostgroup_vars,
leading to the situation where an inventory with no playbook basedir set will
read host/group vars from the $CWD, regardless of the inventory and/or playbook
relative location. This patch corrects that by not using the playbook basedir
if it is unset (None).
This patch also corrects a bug in which the VariableManager would accumulate
host/group vars files, which could lead to incorrect vars files being used when
playbooks are run from different directories containing their own group/host vars
directories.
Fixes#16953
* Revert "There can be only one localhost"
This reverts commit 5f1bbb4fcd.
this broke several usages of localhost, see #16882, #16898 and #16886
* ensure there is only 1 localhost
fixes#16886, #16882 and #16898
- make sure localhost exists before returning it
- optimzed host caching
- ensure we always return a host object
We want to update host vars for all hosts (even those that might
have failed), and the in case of a refresh_inventory, the code has
a stale restrictions list at this point anyway.
The changes to exclude implicit localhosts from group patterns exposed
the bug that we sometimes create multiple implicit localhosts, which
caused some bugs with things like includes, where the host was used as
an entry into a dict, so having multiple meant that the incorrect host
(with a different uuid) was found and includes were not executed for
implicit localhosts.
* In the VariableManager, we were not properly tracking if a file
had already been loaded, so we continuously append data to the end
of the list there for host and group vars, meaning large sets of data
are duplicated multiple times
* In the inventory, we were merging the host/group vars with the vars
local to the host needlessly, as the VariableManager already handles that.
This leads to needless duplication of the data and makes combining the
vars in VariableManager take even longer.
Ansible excessively checks the file system for the potential presence of
`group_vars` and `host_vars` files.
For large numbers of groups this leads to combinatorial performance
issues.
This commit generates a set of group_vars and host_vars filenames using
`os.listdir()` in every possible location and then checks against the sets
before making a stat of the file system.
Also included in this commit is caching of the base directory lookup
for the inventory.
Issue #15633 observes that a meta: inventory_refresh task causes the playbook
to exit. An inventory refresh flushes all caches and rebuilds all host
objects, assigning new UUIDs to each. These new host UUIDs currently fail to
match those on host objects stored for restrictions in the inventory, causing
the playbook to exit for having no hosts to run further tasks against.
This changeset attempts to address this issue by storing host restrictions
by name, and comparing inventory host names against these names when applying
restrictions in get_hosts.
* now you can specify a yaml invenotry file
* ansible_group_priority will now set this property on groups
* added example yaml inventory
* TODO: make group var merging depend on priority
groups, child/parent relationships should remain unchanged.
The use of realpath means when following symlinks the actual path is
used when loading these files in the VariableManager, which may not
line up with the host or group name specified.
Fixes#14545
This prevents a bug where the existing cache outside of the class
is not cleared when creating a new Inventory object. This only really
affects people using the API directly right now, but wanted to fix it
to prevent weird errors from popping up.
Letting it pass would just cause an error later on (no such file found)
so it's better to catch it here and know that we have users dealing with
non-utf8 pathnames than to have to track it down from later on.
Note that the fix for display normalizing to unicode is correct but the
fix for pathnames is probably not. Changing pathnames to unicode type
means that we will handle utf8 pathnames fine but pathnames can be any
sequence of bytes that do not contain null. We do not handle sequences
of bytes that are not valid utf8 here. To do that we need to revamp the
handling of basedir and paths to transform to bytes instead of unicode.
Didn't want to do that in 2.0.x as it will potentially introduce other
bugs as we find all the places that we combine basedir with other path
elements. Since no one has raised that as an issue thus far so it's not
something we need to handle yet. But it's something to keep in mind for
the future.
To test utf8 handling, create a utf8 directory and run a playbook from
within there.
To test non-utf8 handling (currently doesn't work as stated above), create
a directory with non-utf8 chars an run a playbook from there. In bash,
create that directory like this: mkdir $'\377'
Fixes#13937
* Changed parse_addresses to throw exceptions instead of passing None
* Switched callers to trap and pass through the original values.
* Added very verbose notice
* Look at deprecating this and possibly validate at plugin instead
fixes#13608
Ansible previously added hosts to the host list multiple times for commands
like `ansible -i 'localhost,' -c local -m ping 'localhost,localhost'
--list-hosts`.
8d5f36a fixed the obvious error, but still added the un-deduplicated list to a
cache, so all future invocations of get_hosts() would retrieve a
non-deduplicated list.
This caused problems down the line: For some reason, Ansible only ever
schedules "flush_handlers" tasks (instead of scheduling any actual tasks from
the playbook) for hosts that are contained in the host lists multiple times.
This probably happens because the host states are stored in a dictionary
indexed by the hostnames, so duplicate hostname would cause the state to be
overwritten by subsequent invocations of … something.
Looks like there are two pattern caches that need to be cleared for this to work- added the second one.
Added integration tests for add_host to prevent future regressions.
* Always cache and return unique list objects, so that if the list
is changed later it does not impact the cached results
* Take additional parameters and the type of the pattern into account
when building the hash string
James Cammarata
Brian Coca
Alex Mirski-Fitton
Brad Davidson
Toshio Kuratomi
Tobias Wolf
Andrew Taumoefolau
Toshio Kuratomi
Brian Coca
Brian Coca
Yannig Perré
Nils Steinger
nitzmahone