one you've got the

Secret

with a value, you can use the secret in your taskDefinition's container definition, eg:

// secrets can be passed in as env variables too!
            secrets: dbPassword.arn.apply(arn =>[
                { name: "PGPASSWORD", valueFrom: arn }
            ]),

where

dbPassword

is a

SecretValue

resource that I used to set a password on a

dbPassword

Secret