Modernizing & integrating ExxonMobil's ERP systems & apps with ROSA (HYB101)

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Overview of Red Hat OpenShift Service on AWS (ROSA)

• ROSA is a joint solution between AWS and Red Hat to provide a hybrid solution for containerized, virtualized, and AI workloads that need to run seamlessly across private data centers and public clouds.
• ROSA is designed to accelerate time-to-value by providing a common set of APIs and workflows for building and deploying applications across cloud and on-premises environments.
• ROSA offers a turnkey application platform that integrates with various AWS services, providing flexibility to mix and match based on customer needs.

Common Use Cases for ROSA

1. Application Modernization and Cloud-Native Development:

   • Customers can move from on-premises applications to container-based, cloud-native development using ROSA.
   • ROSA Virtualization allows customers to containerize existing VMs and gradually shift workloads to the cloud.
   • ROSA AI provides an end-to-end ML operations toolkit for customers.
   • Customers can also run commercial or off-the-shelf software applications on ROSA.

2. Modernization Journey:

   • Customers typically start by migrating on-premises VM workloads to the cloud using ROSA Virtualization, reducing costs and moving away from private data centers.
   • Next, they identify and categorize applications suitable for cloud-native deployment, migrating them at their own pace using the same tools and workflows across virtualized and cloud-native workloads.
   • Customers can leverage ROSA AI and other AWS services for their ML workloads, mixing and matching components based on their needs.

ExxonMobil's Modernization Journey with ROSA

• ExxonMobil, a 40-year-old energy company, is undergoing a complex modernization and transformation journey to replace its legacy on-premises ERP systems with three cloud-based ERP systems.
• The key challenge is integrating these new ERP systems with the existing ecosystem of 500 applications while still delivering value to the business.
• ExxonMobil is using a "Native API Platform" hosted on ROSA in a hybrid cloud (managed AWS account) to integrate the new ERP systems and the wider application ecosystem.
• The Native API Platform on ROSA is providing the scalability, flexibility, and seamless integration that ExxonMobil needs to modernize its IT landscape.

ExxonMobil's ROSA Platform and Enablement Accelerators

• ExxonMobil's ROSA platform is deployed in a classic topology, across three availability zones, with the control plane hosted within ExxonMobil's accounts.
• The ROSA platform leverages AWS services like STS, Open Virtual Networking, and FSx for NetApp for storage, allowing ExxonMobil to focus on value delivery rather than managing underlying infrastructure.
• Two key enablement accelerators that ExxonMobil has enabled on ROSA are:
  1. Namespace Management: Allowing the API management team to autonomously create namespaces on-demand, enabling faster time-to-market.
  2. Integrated Networking and Security: Providing a secure, integrated networking solution for both internal and external traffic, enabling seamless integration of on-premises and cloud-based applications.

Lessons Learned and Challenges

• Obtaining private link access for Red Hat and AWS to manage the ROSA control plane required extensive reviews and collaboration to address security and risk management concerns.
• The inability to use customer-supplied domain names for ROSA clusters required developing custom compensating controls, which could be an opportunity for improvement.
• The transition from software-defined networking (SDN) to open virtual networking (OVN) in ROSA resulted in challenges with IP address management, requiring the development of custom scripts.

Conclusion

• ExxonMobil's modernization journey, enabled by ROSA, is transforming its legacy ERP landscape and enabling the integration of new cloud-based applications with the existing ecosystem.
• The collaboration between ExxonMobil, AWS, and Red Hat has been crucial in overcoming challenges and leveraging ROSA to build a solid foundation for the company's digital future.