Helm charts, values, releases, kubectl commands, kustomize, operators and CRDs.
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- What is a Helm chart?
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A package containing Kubernetes manifests, templates, and configuration for deploying applications.- Name the core directories and files in a Helm chart structure.
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Chart.yaml, values.yaml, templates/ directory, charts/ subdirectory, and optional README, LICENSE files.- What is the purpose of values.yaml in a Helm chart?
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Provides default configuration values that can be overridden during chart installation or upgrade.- What metadata does Chart.yaml contain?
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Chart name, version, description, application version, maintainers, dependencies, and other chart details.- What is a Helm release?
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An instance of a Helm chart deployed to a Kubernetes cluster with a unique name and specific configuration.- What does helm install do?
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Deploys a Helm chart into a Kubernetes cluster, creating a new named release with specified values.- What does helm upgrade do?
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Updates an existing Helm release to a new chart version or applies new configuration values.- What does helm rollback do?
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Reverts a Helm release to a previous revision, undoing recent changes.- What is a Helm repository?
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A remote collection of Helm charts indexed by a repository index.yaml file, accessible via HTTP.- What does helm repo add do?
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Adds a new Helm repository to local Helm client configuration, making its charts available for use.- What are subcharts in Helm?
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Charts declared as dependencies in a parent chart, enabling code reuse and composition of complex applications.- How are Helm chart dependencies managed?
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Declared in Chart.yaml under dependencies key, then downloaded and updated using helm dependency update.- What are Helm templates?
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Kubernetes manifest files with Golang template syntax, dynamically generating resources based on values.- What are Helm chart hooks?
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Lifecycle event handlers triggered at specific points during chart installation, upgrade, or deletion.- What does kubectl do?
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kubectl is the command-line interface for communicating with and managing Kubernetes clusters.
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