{"id":14174,"date":"2023-07-14T15:48:30","date_gmt":"2023-07-14T13:48:30","guid":{"rendered":"https:\/\/www.mybits.de\/migration-of-a-java-business-application-to-docker-as-well-as-startup-within-a-kubernetes-cluster\/"},"modified":"2025-03-18T15:06:02","modified_gmt":"2025-03-18T14:06:02","slug":"migration-of-a-java-business-application-to-docker-as-well-as-startup-within-a-kubernetes-cluster","status":"publish","type":"post","link":"https:\/\/www.mybits.de\/en\/migration-of-a-java-business-application-to-docker-as-well-as-startup-within-a-kubernetes-cluster\/","title":{"rendered":"Migration of a Java business application to Docker as well as startup within a Kubernetes cluster<\/b>"},"content":{"rendered":"

Migration of a Java business application to Docker as well as startup within a Kubernetes cluster<\/h1>\n<\/div>

In this project, the task was to migrate a hotel management software consisting of Java backend, relational database and Angular frontend from a native server environment to a Kubernetes cluster. At the same time, the Kubernetes cluster was designed, rebuilt and commissioned.<\/p>\n<\/div>

\"KUBERNETES<\/span><\/div>

The BITS project team handled all technical roles and tasks in this project, starting with planning and building a new production Kubernetes cluster, containerizing the existing Java business application, and migrating all server environments including development, test, and live environments.<\/p>\n<\/div>

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Java Monolith<\/h2><\/div>
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Java business application in VM environment<\/p>\n<\/div><\/div><\/div>

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k8s containerization<\/h2><\/div>
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Docker migration and building Kubernetes clusters<\/p>\n<\/div><\/div><\/div>

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100% Kubernetes Cloud<\/h2><\/div>
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Startup in the new Kubernetes cluster<\/p>\n<\/div><\/div><\/div>

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The cooperation with BITS<\/h2>\n<\/div>
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“As a 100% subsidiary of BITS GmbH, we, customice GmbH, have been working successfully with BITS as a strategic IT partner for a very long time. With this project, we have further expanded our hotel management platform in terms of agility, reliability and stability, and we are very pleased to be able to integrate the wide-ranging individual requirements of our customers into our system even more easily in the future.”<\/p>\n<\/div><\/div><\/span><\/blockquote>

\"DSC00606\"<\/span>Birgitta Tafelmeier<\/strong>, <\/span>Customer Success Manager, customice GmbH<\/span><\/span><\/div><\/div><\/div><\/div><\/div><\/div>

Challenge<\/h2>\n<\/div><\/div><\/div>

The challenge was to analyse the existing Java business application, containerize it with the help of Docker, set up a new Kubernetes cluster and deploy the application with all its environments and interfaces there and put it into operation.<\/span><\/p>\n

Another task was to manage the transition from a monolithic application structure to a containerized environment. <\/span><\/p>\n

In addition, the goal was to implement a CI\/CD pipeline to enable fully automated deployment in a test environment.<\/span><\/p>\n

Furthermore, the productive operation of the platform was not to be impaired by the migration project.<\/p>\n<\/div>