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Feature #17944

Updated by Ward Vandewege over 1 year ago

 
 Cf. https://doc.arvados.org/admin/workbench2-vocabulary.html 

 * vocabulary is currently available in wb2 for collections, projects. 

 * add config parameter to API/VocabularyPath, expected to be local to the machine the controller runs on. 
 * the vocabulary file will be cached by controller; file timestamp will be checked on any request. If the vocabulary file can't be read (e.g. permissions, invalid json, etc), the existing cached version will be used and a health warning/prometheus alert should be raised. 
 * if the file can't be read on startup, that's an error. config-check should also check this, and will need to take into account that this is only an error if the context is the controller.  

 this. 

 * apply validation before save/update requests. Admin users do not get special treatment. 

 * the validation code should handle existing data gracefully: if tags are not being changed but are invalid, updates to other fields in the collection should still be permitted. 

 * change wb2 to get the file from controller (it will need to export the cache copy as a valid json url)

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