Allow for using yaml anchors in stack definition
|Assigned To:||Tomáš Strachota|
Task definitions in stacks often contain duplicate data (eg. taxonomies in host creation task) which would be nice to define only once and share. Yaml anchors solve this issue nicely:
The only blocker is we currently expect all first level items in stack definition to be tasks. Therefore it's not possible to define shared structures on the first level.