Open Source software solutions play a critical role for the SMEs by enabling easy access to reusable software. Also, with the rapid growth in the popularity of the cloud technologies, computational demands of SMEs are cost-efficiently met by the public clouds as users can dynamically acquire resources on demand according to their needs. However, non-standardized cloud interfaces, lack of inter-cloud transparency, and complex cost models, often result in vendor lock-in. Once in vendor lock-in, cloud users have to live with a single cloud provider and accept whatever pricing schemes and SLAs are imposed. Moreover, new regulations covered by the General Data Protection Regulation (GDPR) in Europe require companies to enforce policies regarding secure storage of data in the cloud, as well as restrict moving confidential datasets outside Europe. This situation requires a more transparent use of cloud resources from multiple cloud providers, that conform with user’s data privacy needs, service requirements, and budget.
In this paper, we discuss challenges and pitfalls of designing a Cross-Cloud DevOps stack for an app-based extension platform of a Customer Relationship Management (CRM) system. The fully-automated DevOps stack, based on open source software tools and technologies, has been developed in close coordination with an open source integration project, Melodic. With the help of our DevOps stack, third-party apps in our CRM software are now Multi-Cloud ready, and the data storage in the cloud by the users conforms to potential GDPR requirements. In addition, the deployment time of apps has been reduced to minutes, while the platform is able to scale up and scale down apps efficiently based on the current workload requirements, saving substantial cloud costs.
- Open source
This work has received funding from the European Union’s H2020 research and innovation programme under grant agreement no. 731664 (MELODIC).
This is a preview of subscription content, access via your institution.
CAS Software AG - https://www.cas.de/en/homepage.html.
The Melodic Cloud Project - https://melodic.cloud/.
McKendrick, J.: Cloud computing’s vendor lock-in problem: why the industry is taking a step backward. Forbes, November 2011
Opara-Martins, J., Sahandi, R., Tian, F.: Critical review of vendor lock-in and its impact on adoption of cloud computing (2014)
Weinhardt, C., Anandasivam, A., Blau, B., Stößer, J.: Business models in the service world. IT Prof. 2, 28–33 (2009)
Schad, J., Dittrich, J., Quiané-Ruiz, J.A.: Runtime measurements in the cloud: observing, analyzing, and reducing variance. Proc. VLDB Endow. 3(1–2), 460–471 (2010)
Kurze, T., Klems, M., Bermbach, D., Lenk, A., Tai, S., Kunze, M.: Cloud federation. Cloud Comput. 2011, 32–38 (2011)
Sefraoui, O., Aissaoui, M., Eleuldj, M.: OpenStack: toward an open-source solution for cloud computing. Int. J. Comput. Appl. 55(3), 38–42 (2012)
Petcu, D.: Portability and interoperability between clouds: challenges and case study. In: Abramowicz, W., Llorente, I.M., Surridge, M., Zisman, A., Vayssière, J. (eds.) ServiceWave 2011. LNCS, vol. 6994, pp. 62–74. Springer, Heidelberg (2011). https://doi.org/10.1007/978-3-642-24755-2_6
Taherkordi, A., Zahid, F., Verginadis, Y., Horn, G.: Future cloud systems design: challenges and research directions. IEEE Access 6, 74120–74150 (2018)
Bubak, M., Baliś, B., Kitowski, J., Król, D., Kryza, B., Malawski, M.: PaaSage: model-based cloud platform upperware (2011)
Ferry, N., Song, H., Rossini, A., Chauvel, F., Solberg, A.: CloudMF: applying MDE to tame the complexity of managing multi-cloud applications. In: IEEE/ACM 7th International Conference on Utility and Cloud Computing (UCC), pp. 269–277. IEEE (2014)
Hindman, B., et al.: Mesos: a platform for fine-grained resource sharing in the data center. In: NSDI, vol. 11, p. 22 (2011)
Mcluckie, C.: Containers, VMs, Kubernetes and VMware. https://cloudplatform.googleblog.com/2014/08/containers-vms-kubernetes-and-vmware.html. Accessed 13 Jan 2019
Swarm: a Docker-native clustering system. https://github.com/docker/swarm/. Accessed 13 Jan 2019
Slawik, M., et al.: CYCLONE unified deployment and management of federated, multi-cloud applications. In: 2015 IEEE/ACM 8th International Conference on Utility and Cloud Computing (UCC), pp. 453–457. IEEE (2015)
What is DC/OS? https://docs.mesosphere.com/1.7/overview/what-is-dcos/. Accessed 13 Jan 2019
Rosen, L.: Which Open Source license should I use for my software. Open Source Initiative (2001)
Rosen, L.: Open Source Licensing: Software Freedom and Intellectual Property Law. Prentice Hall PTR, Upper Saddle River (2004)
Rossini, A.: Cloud application modelling and execution language (CAMEL) and the PaaSage workflow. In: Advances in Service-Oriented and Cloud Computing-Workshops of ESOCC, vol. 567, pp. 437–439 (2015)
Editors and Affiliations
Rights and permissions
© 2019 IFIP International Federation for Information Processing
About this paper
Cite this paper
Schork, S., Zahid, F., Pradhan, D., Kicin, S., Schwichtenberg, A. (2019). Building an Open-Source Cross-Cloud DevOps Stack for a CRM Enterprise Application: A Case Study. In: Bordeleau, F., Sillitti, A., Meirelles, P., Lenarduzzi, V. (eds) Open Source Systems. OSS 2019. IFIP Advances in Information and Communication Technology, vol 556. Springer, Cham. https://doi.org/10.1007/978-3-030-20883-7_1
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-20882-0
Online ISBN: 978-3-030-20883-7
eBook Packages: Computer ScienceComputer Science (R0)