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DevOps

The team & process

The software product development is based on the so-called “cross-functional” teams where the participating teams and engineers work close, which focuses on the rapid, iterative development of the final product. Unlike the traditional model the communication among product management, developers, testers and system administrators is seamless and efficient as they form one team. The software development is carried out in small increments and iteratively using agile methodology. Each iteration consist of design, development, testing and validation steps together forming a cycle, in which, based on continuous end-user feedback one shapes the product.

Technology

The DevOps automation inherent. The supporting software development and infrastructure management technologies and frameworks improve the quality of software, contribute to the security of the system and operation and accelerate the development and maintenance processes.

The Continuous Integration (CI) is a software development method, in which the software code is integrated with the previous developments for at least on a daily basis. Having been integrated all the new code is verified by automated regression tests that to fit the new code caused an error in the system and as a result it provides feedback as soon as possible about the result of the integration.

The Continuous Delivery (CD) is the further development of Continuous Integration development method. It aims to quickly and reliably publish to the end users the incremental changes in the software code. Automated regression testing (CI) phase is followed by an automated software testing and promotion for further environments in order to perform a full range of testing. Between the development and production environment a number of intermediate environment can be justified that the new software changes to meet all aspects of automated tests (unit, regression, integration, UI, performance, UA / manual tests). At the end of the process, the changes are entered into the production system, which requires the least amount of human intervention. The minimal requirement of the CD process is a development, test and production environment through which we promote the new changes.

Infrastructure as Code (IaC) method built into the hardware virtualization technologies provides to build and run network and server configurations as software code. One of the advantages of the infrastructure code that, like software codes that can be reused for any repetitive system administration work or repetitive process. This automation in case of a larger server farm significantly accelerates processes, saving hundreds of engineering hours. Since the infrastructure software is treated as a code, it becomes testable and the changes will be published in an automated way (Continuous Delivery applied for infrastructure code).

Configuration Management (CM): In addition to the infrastructure applications and service configurations can be stored also as code, with version management. The necessary changes in systems and applications can be easily tracked so and the user privileges helps to control from a central location. Configuration changes can be run on thousands of servers using the CM frameworks.

DevOps on AWS

The AWS Cloud supports all aspects of software development, testing and operation by advanced hardware virtualization technologies. All components of the system are available and programmable via the AWS API, thus creation, installation and configuration of complete software systems and environments can be done automatically without human intervention. The AWS provides ready to use platform for the usage and simple operation of CI, CD, IaC and CM methods, all completed with the integrated security and audit functions, so clients can pay attention to their intellectual property and software development.

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