DevOps Advanced

What is Helm?

A package manager for Kubernetes that simplifies deploying and managing applications using reusable, configurable charts.

Helm packages Kubernetes resources into charts — reusable bundles of YAML templates with configurable values. Instead of managing dozens of Kubernetes manifests, you install a chart with helm install and customize via values.yaml.

Helm supports versioned releases, upgrades, rollbacks, and dependency management. Chart repositories share community and enterprise charts. Popular charts exist for databases, monitoring stacks, and web applications.

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An infrastructure layer that handles service-to-service communication, providing load balancing, encryption, and observability.

Pipeline as Code

Defining CI/CD pipeline configurations as version-controlled code files rather than through UI-based pipeline builders.

Infrastructure as Code (IaC)

The practice of managing infrastructure through machine-readable configuration files rather than manual processes.

Infrastructure Drift

The divergence between the actual state of infrastructure and its defined desired state, caused by manual changes or untracked modifications.

A high-performance web server and reverse proxy known for its stability, low resource usage, and ability to handle many concurrent connections.

A deployment strategy that gradually replaces old application instances with new ones, maintaining availability throughout.

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