An environment posix shell script have to be created in `e2e/envs/gcs` folder in order to allow e2e to be tested against Azure Containers Service cluster using local user credentials and the `azure` cli. The script have to implement few functions: * `reuse_k8s`: allow to reuse an already existing AKS cluster * `reset_k8s`: destroy if exists and create a new AKS cluster * `delete_k8s`: destroy if exists an AKS cluster * `load_operator_k8s`: load the operator image from the local docker repository to the AKS cluster