What Is a Helm Values Override?
Helm charts ship default settings in a values file, and an override supplies different values at install or upgrade time. Overrides can come from a separate values file or from command-line flags, and they layer on top of the defaults. This lets one chart serve many environments by swapping in per-environment values such as replica counts and image tags.
Why it matters
A single parameterized chart plus environment-specific overrides avoids forking templates per environment. Keeping overrides in version control makes each environment configuration reviewable.
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