Since Azul Platform Prime (old name Zing) version 19.07 the ZST component is not needed anymore, which was required in earlier versions. To run Azul Platform Prime within a container you only need to install the JDK Stable Release or Stream Release package (tar.gz, RPM or DEB) inside the container. The JDK installation package is available on the Azul Platform Prime downloads page.
For recommendations about the Java heap size configuration in containers, see Heapsize Settings.
Alternatively, you can also install Azul Platform Prime Stream Release from a package repository inside a container as explained on the following page which shows a Dockerfile example: Get Started with Azul Platform Prime in a Docker Container