Old provider in v1.15: https://github.com/kubernetes/kubernetes/tree/release-1.15/pkg/cloudprovider/providers/cloudstack
Refer: https://github.com/kubernetes/enhancements/issues/672 https://github.com/kubernetes/enhancements/issues/88 https://github.com/swisstxt/cloudstack-cloud-controller-manager https://github.com/tsuru/custom-cloudstack-ccm