WEBVTT

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Hello.

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In this lecture we will see how to set
an environment variable in Kubernetes

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given a pod definition file, 
which uses the same image

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as the Docker command 
we ran in the last lecture.

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To set an environment variable, 
use the ENV property.

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ENV is an array,

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so every item under the ENV property
starts with a dash

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indicating an item in the array.

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Each item has a name and a value property.

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The name is the name
of the environment variable

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made available with the container
and the value is its value.

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What we just saw was a direct way
of specifying the environment variables

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using a plain key value pair format.

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However, there are other ways
of setting the environment variables

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such as using ConfigMaps and secrets.

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The difference in this case

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is that instead of specifying value,
we say value from

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and then a specification
of ConfigMap or secret.

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We will discuss about 
ConfigMaps and secret keys

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in the upcoming lectures.

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That's it for this lecture.

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I will see you in the next.