Caché cube icon available only for Windows. But there is an external project Cube, but it was not developed so long.

I have configured automatic deployment of the application to Kubernetes with Helm from GitLab as a part of CI/CD process.

I would not say that I had some specific issues, just well configured Kubernetes cluster with the right storage driver. Any InterSystems products supports devicemapper and aufs right now, yet. So, of course, better to have devicemapper available server, and use this possibility. AUFS already deprecated by Docker and will disappear in the next major release.

Do not forget that $lb is just a list, concatenated list of single $lb, and $lb is a string in binary format.. So, just $replace, will work

USER>set list = $lb("stri,ng", $c(0), 2)

USER>set list = $replace(list, $lb($c(0)), $lb())

USER>zw list
list=$lb("stri,ng",,2)

I made such an example years ago, you can look at GitHub. This example maybe not so correct by this time, but can be useful. When you have to run only ECP clients, it becomes a bit easier. You should not care about volumes, in most cases, all the data stored in ECP-client is temporal. So, you mostly should care only about buffers. In my example, you can find how to configure instance during docker build to work as ECP-client.

You can specify /nodelete qualifier when you run your tests.

Do ##class(%UnitTest.Manager).RunTest("testspec","/nodelete")

Look at the documentation for other options.

You can find detailed information in the documentation

Well, there is mostly only one reason, why you can't mount your database and this issue mostly happens when anybody tries to migrate between different versions on different machines. And it is different localization settings. Like, your database uses some national global collation, and you try to copy it to the instance with different settings, where this collation does not supported. You should find mention about  wrong collation in cconsole.log. So, then, you should set the same NLS, as in the first system and try to mount again.

Another possible reason is different blocksize in the Database. By default Caché uses 8KB blocks, but it is possible to have different block size, and instance should be configured for this particular blocksize, as well. cconsole.log should also contain error in this case.

Some other issues, which you can face, but they do not prevent database to be mounted.

• 8-bit or Unicode, when you install Caché you still able to choose it, when Ensemble, HealthShare, and IRIS is Unicode only. In this case, if your data not in English, possible data should be converted from 8-bit codepage to Unicde.
• cache.lck file next to CACHE.DAT, it is a lock file, prevents to mount database with exclusive access. But Database in this case should be mounted in read-only mode.

Function $zf(-1) just executes a command passed as the second argument, you passed only file name. it is not complete, you should add command del  for Windows.

set status = $zf(-1, "del c:\sys\text.txt")

it should return 0 if the command was successful.

If you want just delete a file, you can use %File class, useful for many different operations with files and folders.

set result = ##class(%File).Delete("c:\sys\text.txt")