merge_variables: extended merge capabilities added (#11536)
* merge_variables: extended merge capabilities added
This extension gives you more control over the variable merging process of the lookup plugin `merge_variables`. It closes the gap between Puppet's Hiera merging capabilities and the limitations of Ansible's default variable plugin `host_group_vars` regarding fragment-based value definition. You can now decide which merge strategy should be applied to dicts, lists, and other types. Furthermore, you can specify a merge strategy that should be applied in case of type conflicts.
The default behavior of the plugin has been preserved so that it is fully backward-compatible with the already implemented state.
* Update changelogs/fragments/11536-merge-variables-extended-merging-capabilities.yml
* Update plugins/lookup/merge_variables.py
* Periods added at the end of each choice description
* Update plugins/lookup/merge_variables.py
* ref: follow project standard for choice descriptions
* ref: more examples added and refactoring
* Update plugins/lookup/merge_variables.py
* ref: some more comments to examples added
* fix: unused import removed
* ref: re-add "merge" to strategy map
* Update comments
* Specification of transformations solely as string
* Comments updated
* ref: `append_rp` and `prepend_rp` removed
feat: options dict for list transformations re-added
feat: allow setting `keep` for dedup transformation with possible values: `first` (default) and `last`
* ref: improve options documentation
* ref: documentation improved, avoiding words like newer or older in merge description
* Update plugins/lookup/merge_variables.py
* ref: "prio" replaced by "dict"
* feat: two integration tests added
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(cherry picked from commit dae2157bb7)
Signed-off-by: Fiehe Christoph <c.fiehe@eurodata.de>
Co-authored-by: Christoph Fiehe <cfiehe@users.noreply.github.com>
Co-authored-by: Fiehe Christoph <c.fiehe@eurodata.de>
Co-authored-by: Felix Fontein <felix@fontein.de>
Co-authored-by: Mark <40321020+m-a-r-k-e@users.noreply.github.com>
* manually prepare variables of foreign host including hostvars property
* render variables from context of current host
* add integration test for cross host merge
* lint fixes
* adjust cross host merge unit tests to provide a tiny bit of the HostVars Class API
* add license information
* lint
* add changelog fragment
* Update tests/integration/targets/lookup_merge_variables/test_cross_host_merge_play.yml
Okay
Co-authored-by: Mark <40321020+m-a-r-k-e@users.noreply.github.com>
* Update tests/integration/targets/lookup_merge_variables/test_cross_host_merge_play.yml
Okay
Co-authored-by: Mark <40321020+m-a-r-k-e@users.noreply.github.com>
* Update tests/integration/targets/lookup_merge_variables/test_cross_host_merge_play.yml
Okay
Co-authored-by: Mark <40321020+m-a-r-k-e@users.noreply.github.com>
* rename _HostVars to HostVarsMock
* removing unnecessary task
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Co-authored-by: Gitlab CI <alexander.petrenz@posteo.de>
Co-authored-by: Mark <40321020+m-a-r-k-e@users.noreply.github.com>
