This topic outlines the steps that a Dockerfile must carry out to create an image that contains a COBOL application that can be run under COBOL Server.
Before you follow the steps in this topic you must have built a base image for COBOL Server. For information on creating a base image for COBOL Server see Building a Base Image Containing COBOL Server.
Before building an image containing an application to run under COBOL Server you need to ensure that you have available the following:
To build an image that includes an application to run under COBOL Server your Dockerfile needs to perform the following steps:
All of the Docker demonstrations offer the option to create such a login image, and those images are tagged with the suffix "_login". See Running the Docker Demonstration for the COBOL Server Base Image for information on how to specify that you want to create a _login image. For details on the commands required to build such an image, see the bld.sh script in any of the Docker demonstrations.
The above process is used by the Docker demonstrations that create images for applications that you can run under COBOL Server. For more information on one of those demonstrations, including information on all the files it contains and a detailed description of the Dockerfiles it contains, see The Hello World Docker Demonstration.