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Status Delivered
Workspace CICS Transaction Server for z/OS
Created by Guest
Created on Feb 22, 2018

RELATED IDEAS

zospt spring boot support

We see, that there are a lot of spring boot apps in our company - amount increasing. They all will be deployed to openshift + tomcat.

We can't do anything against this trend as there is no alternative on the mainframe.

The idea now would be to have a spring boot application, build it on a normal build server and deploy it to the mainframe.

zospt should then take it - make a cics container + liberty (instead of tomcat) out of it and run the application in there.

There should be only little to none code changes to make this possible.

This use case is very important in my opinion, because we could get a lot of workload out of this context back to the mainframe.

Idea priority High
  • Guest
    Reply
    |     Feb 4, 2021

    This requirement has been addressed as follows:

    CICS TS V5.3 and above supports Spring Boot applications built as Spring WAR files.
    - https://www.ibm.com/support/knowledgecenter/SSGMCP_5.3.0/com.ibm.cics.ts.java.doc/topics/sb-building.html?view=embed

    CICS TS V5.5 and above supports Spring Boot applications built as Spring WAR or Spring JAR files, and can be called via EXEC CICS LINK.
    - https://www.ibm.com/support/knowledgecenter/SSGMCP_5.5.0/applications/developing/java/sb-building.html?view=embed
    - https://www.ibm.com/support/knowledgecenter/SSGMCP_5.5.0/applications/developing/java/link_2_liberty.html

    Spring Boot applications can be run in CICS without code change. They can also make use of the CICS API (JCICS).
    - https://www.ibm.com/support/knowledgecenter/SSGMCP_5.3.0/com.ibm.cics.ts.java.doc/topics/sb-jcics.html

    Spring Boot applications can be packaged and installed into a CICS Liberty JVM server using a CICS bundle, or via a Liberty server.xml element, or via Liberty dropins directory.

    z/OS Provisioning Toolkit supports building and provisioning images containing CICS bundles, Liberty server.xml, and WAR and JAR files.
    - https://www.ibm.com/support/knowledgecenter/SSXH44_1.1.0/zospt/developer-examples/zospt-examples-provision-cics-bundles.html
    - https://www.ibm.com/support/knowledgecenter/SSXH44_1.1.0/zospt/developer-examples/zospt-examples-provision-cics-liberty-dev-env.html

  • Guest
    Reply
    |     Aug 30, 2019

    This is a candidate for a future release.

  • Guest
    Reply
    |     Mar 12, 2018

    For an easier scenario it would be maybe better to start with an spring boot container (linux) containing an liberty as runtime.

    We are just verifing if we could use liberty for every jvm runtime. This would allow us to reduce our skills. We could focus on liberty.

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