3.x: how to update minor version

[mnscholz]

Is there any documentation on how to do an update between two minor versions of Kitodo?
I think I once read a paragraph about that but I can't find it anymore and I may err.
All I found is the paragraph in the devel docs: https://kitodo-production.readthedocs.io/en/latest/developer/gettingstarted/development-version/
From the tutorial I infer that I should replace the war and the module jars.
But it also drops the database, which is not what I want.
How should I update the database, ie. run the maven flyway updates?

[matthias-ronge]

As far as I know there is no description of the update procedure between 3.x intermediate releases. Basically it works like this:

You save the configuration from the webapps/kitodo/WEB-INF/classes directory without the mapping.json file. Then you delete the .war file from the Tomcat webapps directory. Stop the Tomcat. Also delete the modules .jars.

Update the database. Here's how: Go to releases, and for the release you have currently installed, left on the hexadecimal number above the text "Verified". On the next page, click on "Browse files" in the top left corner. Go to Kitodo-DataManagement » src » main » resources » db » migration and check which is the highest number (after V2) you can find there. Then go back to releases and there the version you want to install. There change again to the folder migration. Look which files that have been added numerically. Apply this content to your database in numerical order. (Note, if you right click and save the additional files, you will get HTML files. You have to open the page on GitHub, use the "Raw" button above, or copy and paste from that page.)

If the index has changed between the versions, you have to delete the index (I always do this: delete directory 0 from elasticsearch data directory while the service is down; on Linux, you need root permissions to find the directory at all), and then re-index. (I do index rebuilds every time, so I can't say how to tell if it's necessary.)

Unpack the modules from the new release into the module directory, insert the .war file into webapps. Then start the Tomcat and wait for deploy. Then stop the Tomcat and copy the saved configuration files back to WEB-INF/classes. Log in as a user with permission to index and recreate Elasticsearch index.

[mnscholz]

Thank you! I followed your guide and everything seems to work fine (no errors so far).

I wonder, however, that when manually applying the database updates, the table flyway_schema_history isn't updated as well. I have manually inserted the missing version entries, so that I can keep track if I want to install further updates.
For the future, I guess there should be some update procedure here.