fix for failure to launch vm's in different regions
fix for failure to launch vm's in different regions

JanewzhWang/dasein-cloud-azure,dasein-cloud/dasein-cloud-azure,daniellemayne/dasein-cloud-azure,vladmunthiu/dasein-cloud-azure,jeffrey-yan/dasein-cloud-azure,greese/dasein-cloud-azure,daniellemayne/dasein-cloud-azure_old,drewlyall/dasein-cloud-azure