FinOps School

1. Introduction & Overview What is Operational Expenditure (OpEx)? Operational Expenditure (OpEx) refers to the ongoing, recurring costs associated with maintaining and operating an organization’s IT infrastructure, applications, and services. In DevSecOps, OpEx includes expenses for cloud services, software licenses, security monitoring, personnel, and other resources needed to sustain development, security, and operations workflows. Unlike … Read more

1. Introduction & Overview What is CapEx (Capital Expenditure)? Capital Expenditure (CapEx) refers to funds allocated by an organization to acquire, upgrade, or maintain long-term assets that provide value beyond a single fiscal year. These assets include physical infrastructure (e.g., servers, networking equipment) and intangible assets like software licenses or multi-year cloud subscriptions. In DevSecOps, … Read more

1. Introduction & Overview What is an API Gateway? An API Gateway is a server that acts as a reverse proxy, sitting between client applications (e.g., web or mobile apps) and backend services. It manages API requests by handling tasks such as routing, authentication, rate limiting, and request transformation. It serves as a single entry … Read more

1. Introduction & Overview What is Data Transfer in DevSecOps? Data transfer in DevSecOps refers to the secure, automated, and efficient movement of data—such as code, artifacts, configurations, or sensitive information (e.g., credentials)—across systems, environments, or services within the software development lifecycle (SDLC). It ensures seamless collaboration among development, security, and operations teams while maintaining … Read more

1. Introduction & Overview What is a SaaS License? Software as a Service (SaaS) licenses are subscription-based agreements that govern the access and use of cloud-hosted software applications. Unlike traditional software licenses, which involve purchasing and installing software on local infrastructure, SaaS licenses allow users to access software over the internet on a pay-as-you-go or … Read more

1. Introduction & Overview What are Managed Services? Managed Services in the context of DevSecOps refer to outsourced IT services where a third-party provider manages and maintains infrastructure, applications, or security operations. These services include cloud management, monitoring, security patching, and CI/CD pipeline support, allowing organizations to focus on development while ensuring security and operational … Read more

1. Introduction & Overview What are Containers? Containers are lightweight, portable units that package an application with its dependencies, libraries, and configuration files, ensuring consistent execution across different environments. Unlike virtual machines (VMs), containers share the host operating system’s kernel, making them efficient and fast. History and Background Relevance in DevSecOps Containers are pivotal in … Read more

1. Introduction & Overview What is Serverless? Serverless computing is a cloud-native development model where developers build and run applications without managing the underlying infrastructure. The cloud provider handles server provisioning, scaling, and maintenance, allowing developers to focus on writing code. In a serverless model, applications are typically event-driven, with functions executed in response to … Read more

1. Introduction & Overview What is a Database? A database is a structured collection of data, typically stored and accessed electronically via a computer system. It is designed to efficiently manage large datasets, enabling storage, retrieval, and manipulation through a Database Management System (DBMS). Databases support critical operations in applications, from storing user data to … Read more

1. Introduction & Overview What is Networking in DevSecOps? Networking in DevSecOps refers to the design, implementation, and management of secure, scalable, and automated network infrastructure to support development, security, and operations workflows. It involves protocols, tools, and configurations that enable communication between services, applications, and infrastructure while prioritizing security and automation. History or Background … Read more