On the Envs & Secrets page, you can configure the environment variables and secrets for your application. Environment variables are key-value pairs injected into the container. Secrets are sensitive data stored as Kubernetes secrets. Secrets are base64 encoded and can be used as environment variables or mounted as files. You can simply copy and paste the content of your .env file or secret file into the text area.
Both environment variables and secrets are available in the container as environment variables.
