update minter migration notes

doc/bdb_minter_migration_notes.md

@@ -0,0 +1,65 @@
+# Berkeley DB minter migraiton notes
+
+## Preparation steps
+
+### 1. Check the minters
+
+Run the shoulder-check-minters command to check the minters.
+```
+python manage.py shoulder-check-minters
+```
+Review the output and fix issues if needed.
+
+
+### 2. Stop the EZID and background services
+
+### 3. Backup the BDB minters folder
+
+### 4. Backup the EZID RDS database
+
+### 5. Update/Deploy EZID code
+
+* Make sure the puppet deploy script does not start EZID and background jobs after code deployment
+* Make sure EZID is on the preferred tag/branch
+
+## Create the minter table in the EZID database
+
+### 1. Modify the EZID settings to use the eziddba account for data model migration
+### 2. Make sure the required data model and mingration files are in place
+* data model: minter.py
+* migration file: 0004_minter.py
+
+### 3. Run the "migrate" migrate command to create the `minter` table:
+```
+python manage.py migrate
+```
+
+## Perform minter data migraiton
+
+Run the minter data migration script to convert the BDB minters to JSON objects and load them to the minter table in MySQL.
+
+Script: `migrate-minters-to-mysql.py`
+Folder: /ezidapp/management/commands
+
+The script takes two optional arguments:
+* --dry-run/-r: dry run without updating the minter table in the EZID database
+* --output-file/-o: save BDB datasets in an output file in JSON format
+
+Sample command
+
+```
+$ python manage.py migrate-minters-to-mysql.py
+```
+
+## Disable the Berkeley minter database 
+
+* Rename the Berkeley minter folder
+* Modify the settings.py file to remove Berkeley minter related entries
+
+## Perform post-migration steps
+Perform post-migraiton steps:
+* Review minter data migration results
+* Modify the EZID settings to use the ezidrw account
+* Restart EZID and back ground jobs
+
+