Migration Plugin

Issue #7889

Updated by ipanova@redhat.com almost 4 years ago

Create plan and run: 
 ``` 

 { 
     "plan": { 
         "plugins": [ 
             { 
                 "repositories": [ 
                     { 
                         "name": "file", 
                         "pulp2_importer_repository_id": "file", 
                         "repository_versions": [ 
                             { 
                                 "pulp2_distributor_repository_ids": [ 
                                     "file2" 
                                 ], 
                                 "pulp2_repository_id": "file" 
                             } 
                         ] 
                     }, 
                     { 
                         "name": "file2", 
                         "pulp2_importer_repository_id": "file2", 
                         "repository_versions": [ 
                             { 
                                 "pulp2_distributor_repository_ids": [ 
                                     "file-many" 
                                 ], 
                                 "pulp2_repository_id": "file2" 
                             } 
                         ] 
                     } 
                 ], 
                 "type": "iso" 
             } 
         ] 
     }, 

 ``` 
 Create another plan and run: 

 ``` 
 { 
     "plan": { 
         "plugins": [ 
             { 
                 "repositories": [ 
                     { 
                         "name": "file", 
                         "pulp2_importer_repository_id": "file", 
                         "repository_versions": [ 
                             { 
                                 "pulp2_distributor_repository_ids": [ 
                                     "file-many" 
                                 ], 
                                 "pulp2_repository_id": "file" 
                             } 
                         ] 
                     }, 
                     { 
                         "name": "file2", 
                         "pulp2_importer_repository_id": "file2", 
                         "repository_versions": [ 
                             { 
                                 "pulp2_distributor_repository_ids": [ 
                                     "file-large" 
                                 ], 
                                 "pulp2_repository_id": "file2" 
                             } 
                         ] 
                     } 
                 ], 
                 "type": "iso" 
             } 
         ] 
     }, 
 ``` 
 `File2` repo will have 2 distributions displayed `file-large` and `file-many`. In addition there is a concern of hitting base_path collision because same distributor `file-many` has been used to distribute 2 different repos. 

 **NOTE** 
 Importers will suffer as well from correctness problem in case same importer will be used for 2 different repos in between the migration plans

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