--- title: General FAQ --- This FAQ is a work in progress designed to answer the questions most frequently asked about Rancher v2.x. See the [Technical FAQ](technical-items.md) for frequently asked technical questions. ## Does Rancher v2.x support Docker Swarm and Mesos as environment types? Swarm and Mesos are no longer selectable options when you create a new environment in Rancher v2.x. However, both Swarm and Mesos will continue to be available as Catalog applications you can deploy. It was a tough decision to make but, in the end, it came down to adoption. For example, out of more than 15,000 clusters, only about 200 were running Swarm. ## Is it possible to manage Azure Kubernetes Services with Rancher v2.x? Yes. See our [Cluster Administration](../how-to-guides/new-user-guides/manage-clusters/manage-clusters.md) guide for what Rancher features are available on AKS, as well as our [documentation on AKS](../getting-started/installation-and-upgrade/install-upgrade-on-a-kubernetes-cluster/rancher-on-aks.md). ## Does Rancher support Windows? Yes. Rancher supports Windows Server 1809 containers. For details on how to set up a cluster with Windows worker nodes, refer to the section on [configuring custom clusters for Windows.](../how-to-guides/new-user-guides/kubernetes-clusters-in-rancher-setup/use-windows-clusters/use-windows-clusters.md) ## Does Rancher support Istio? Yes. Rancher supports [Istio](../integrations-in-rancher/istio/istio.md). ## Will Rancher v2.x support Hashicorp's Vault for storing secrets? Secrets management is on our roadmap but we haven't assigned it to a specific release yet. ## Does Rancher v2.x support RKT containers as well? At this time, we only support Docker. ## Does Rancher v2.x support Calico, Contiv, Contrail, Flannel, Weave net, etc., for embedded and registered Kubernetes? Out-of-the-box, Rancher provides the following CNI network providers for Kubernetes clusters: Canal, Flannel, Calico and Weave. Always refer to the [Rancher Support Matrix](https://rancher.com/support-maintenance-terms/) for details about what is officially supported. ## Are you planning on supporting Traefik for existing setups? We don't currently plan on providing embedded Traefik support, but we're still exploring load-balancing approaches. ## Can I import OpenShift Kubernetes clusters into v2.x? Our goal is to run any Kubernetes clusters. Therefore, Rancher v2.x should work with OpenShift, but we haven't tested it yet. ## Is Longhorn integrated with Rancher? Yes. Longhorn is integrated with Rancher v2.5 and later.