minikube创建三个node并传入http代理环境变量，防止pullbackoff

#!/bin/zsh
minikube start --docker-env HTTP_PROXY=http://192.168.3.28:2080 \
               --docker-env HTTPS_PROXY=http://192.168.3.28:2080 \
               --docker-env NO_PROXY=localhost,127.0.0.1,.local,.cluster.local -n 3