My application isn’t working, where can I troubleshoot this?
Please ensure all required containers are running: etcd, istio-apiserver, consul, registrator, pilot. If one of them is not running, you may find the {containerID} using docker ps -a and then use docker logs {containerID} to read the logs.
How do I unset the context changed by istioctl at the end?
Your kubectl is switched to use the istio context at the end of the istio context-create command. You can use kubectl config get-contexts to obtain the list of contexts and kubectl config use-context {desired-context} to switch to use your desired context.