What’s New in 4.5

Version 4.5.2 includes more than 200 bug fixes from previous release, the following new features and improvements.

NuageVsp Network Plugin

The Nuage NetworksTM Virtualized Services Platform (VSP) is a Software-Defined Networking (SDN) solution that virtualizes any datacenter (DC) network infrastructure and automatically establishes connectivity between compute resources upon their creation.

NuageVsp networking plugin bring the Nuage VSP network virtualization technology to CloudStack. All the network isolation and routing is handled by the Nuage SDN solution. Routing of the packets happen at hypervisor itself. Virtual Router is not used for routing the packets and is spawned only for Password reset functionality. The Nuage solution also helps significantly improve the agility and scale of a CloudStack deployment as compared to a Virtual Router based deployment.

Supported hypervisors: XenServer, VMware
Link NuageVsp Network Plugin spec

Bind integration with Globo DNSAPI

GloboDNS provide API to Bind DNS server used to centralized DNS server outside of CloudStack networks. When deploying Advanced Networks, Virtual Routers are used to isolate networks and provide DNS service for all machines inside each network. This approach imposes a challenge when instances need to translate names that belong to instances from another network.

Supported hypervisors: Any
Link Globo DNSAPI spec

SAML 2.0 Plugin

SAML 2.0 Plugin provide integration of CloudStack to existing authentication mechanism. This provide Single Sign On (SSO) and Single Log Out (SLO) to work on CloudStack UI and clients. SAML (Security Assertion Markup Language) 2.0 is an old, stable and widely used XML based authentication and authorization protocol supported by Salesforce, Google Apps and other public and private companies and the aim is to integrate the SSO SAML support in CloudStack. The current implementation is experimental, will change in future and should be avoided in prouduction.

Supported hypervisors: N/A
Link SAML spec

Managed storage for KVM

This adapter provides one to one mapping between SAN volume to VM’s disk. This is to guarantee quality of services for performance sensitive applications. This adapter is based on nfs protocol.

Supported hypervisors: KVM

Improved CloudByte Storage Plugin

The new improved CloudByte plugin support the following features:

  • Managed storage, where each vm disk has the guaranteed QoS.
  • Account integration in cloudbyte with respect to domains in CloudStack.
  • Resize of the volume.
  • both iSCSI and nfs protocols in XenServer.
  • iSCSI protocol for KVM and VMware ESX.
  • Storage level snapshot capabilities as well as hypervisor level snapshot feature.
  • Expose custom API’s for ui integration.
  • Unlimited storage nodes across the sites.
Supported hypervisors: KVM, VMware, XenServer

Use SSH for commands sent to Virtual-Router

For XenServer host, sending commands to Virtual-Routers now use SSH, previously using XAPI plugin, this change reduce XAPI workload and allow Virtual-Router update while XenServer pool master is down.

Supported hypervisors: XenServer

Baremetal Advanced Networking Support

This feature is about CloudStack network plugin for baremetal advanced networking. With this plugin, CloudStack can automatically program vlan on physical switch to which baremetal instances connect when creating/destroying baremetal instance. This feature cannot work standalone, it needs support from physical switch itself either from vendor’s SDK or from an in-switch agent for whitebox switch. When using this feature, baremetal instances gain Layer 2 isolation methods provided by CloudStack advanced networking which is particularly useful in public cloud that wants to provide baremetal as a service. This feature currently requires a VMware virtual router, so is only supported by that hypervisor.

Supported hypervisors: N/A
Link Baremetal feature spec

Instance Password Generation length can now be changed

For instance using random password generated by CloudStack, Password length and encoder can now be define with following Global Settings: vm.password.length, user.password.encoders.exclude, user.password.encoders.order


  • [UI] keep advanced search parameters visible after search has been run
  • [UI] Add new vGPU types K160Q, K180Q, K280Q
  • [LXC] storage migration for LXC VMs fixed
  • Use of MariaDB as cloudstack management server database
  • System VM password reset now supported
  • Root volume detach support
  • System VM local storage setting system.vm.use.local.storage is configurable at zone level
  • Ability to set CPU features for user vms on KVM using guest.cpu.features property
  • A threaded Python based password server that consumes less RAM and CPU
  • VMFS support in VMWare
  • XenServer 6.5 support
  • Separate /var/log partition in SystemVM template
  • VMXNET3 nic adapter support for KVM
  • nicAdapter VM detail is configurable for VMWare to set custom nic adapter
  • New secure and default user authenticator: PBKDF2-SHA-256
  • Resize volume support on KVM