Secrets In Function Mesh, the secret is defined through a `secretsMap`. To use a secret, a Pod needs to reference the secret. Pods can consume secretsMaps as environment variables in a volume. To use a secret as an environment variable in a Pod, follow these steps. 1. Create a secret or use an existing one. Multiple Pods can reference the same secret. 2. Modify your Pod definition in each container, which you want to consume the value of a secret key, to add an environment variable for each secret key that you want to consume. 3. Modify your image and/or command line so that the program looks for values in the specified environment variables.