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Hi, Let us understand how to change the default value from the values.yaml file when the release is

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getting released. Let's use the same example.

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I do have the values YAML file.

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Let me go ahead and do a dry run, and I want to replace the cost code with some other value, so I can

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use the set flag helm install dry run

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I want to run it in the debug mode and I'm going to set the key cost code to this specific value and

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the name of the release is and the chart resources to use from this specific folder.

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So what's going to do when the template is getting generated

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The value will be computed from the values.yaml file.

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And if any value is set within the command prompt, the set is going to get more precedence

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So what will happen, the value provided over here will be replaced within the computed values file.

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And that will be replaced within the templates.

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So this is what the computed value.

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The reason, because the user supplied this specific value using this set command.

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And it got replaced. This is the final computed value.

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And the same would get replaced. Many times

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I may want to do a release with some custom value, and I don't want to use that default value, for that

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particular purpose I can use this specific set and doing the installation also

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I can use the set. Let me go ahead and do a small demo helm install

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Name of the release and then release resources.

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Then --set key and the value that I want to replace with.

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It is done. Let me go ahead and get the manifest using the release name.

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helm get manifest and the name of the release valueseteg, so here its

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Using the new value that we provided as a part of the command prompt.

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And this would have done a deployment of a config maps so I can check the value of the config map as

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well within the config map

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Also, I do have the value that I passed along with the command prompt, so I can change the value thats provided

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as a part of the values YAML file as well during the deployment.

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This I will be using it whenever I wanted to do any custom deployment and change the value only

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for that specific release.

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Let me go ahead and delete this release helm uninstall name of the release

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So in a quick summary we have seen how to use the set flag as a part of the command prompt to change the

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values provided by the values yaml file.