This feature allows CloudStack administrators to unmanage guest virtual machines (VMs) from their CloudStack infrastructure. Once unmanaged, CloudStack can no longer monitor, control, or manage provisioning and orchestration related operations on it. This feature is currently supported only on VMware. An interesting use case of this feature (when used in conjunction with the VM ingestion […]
Private VLANs have always been partially supported in CloudStack (for shared networks only), in versions prior to 4.14. Administrators could set up Isolated or Promiscuous PVLANs by creating their shared networks in which: Primary VLAN ID = secondary VLAN ID, for Promiscuous PVLANs Primary VLAN ID != secondary VLAN ID, for Isolated PVLANs CloudStack 4.14 […]
Introduction In a previous post, ShapeBlue’s Boris Stoyanov introduced a feature for KVM which allows administrators to register templates and ISOs without needing secondary storage as an intermediate cache. This feature is known as Direct Download in CloudStack. Without an intermediate cache, the templates and ISOs direct download registration process differs from the usual process, […]
This feature allows the sending of arbitrary additional VM configurations to user VMs on CloudStack and is supported by KVM, XenServer and VMware hypervisors. The administrator enables or disables this feature by the global configuration ‘enable.additional.vm.configuration’ which is disabled by default. To add a second layer of security, the administrator must explicitly set a comma-separated […]
The process of setting a host into maintenance in CloudStack requires an administrator to ask for ‘prepare for maintenance’, either via API or through the UI on a host. When CloudStack receives the request to prepare the host for maintenance, the host state is set to ‘PrepareForMaintenance’ and any VM running on the host start […]
This feature introduces an easy and integrated way to check the health of virtual routers (VRs) within CloudStack. With the help of these checks, administrators can monitor VRs and take any necessary action when a failure is reported. These health checks can be basic or advanced. Basic health checks include: Connectivity from the management server to […]
Introduction In my previous post, I described the new ‘Open vSwitch with DPDK support’ on CloudStack for KVM hosts. There, I focused on describing the feature, as it was new to CloudStack, and also explained the necessary configuration on the KVM agents’ side to enable DPDK support. DPDK (Data Plane Development Kit) (https://www.dpdk.org/) is a […]
Introduction This blog describes a new feature to be introduced in the CloudStack 4.12 release (already in the current master branch of the CloudStack repository). This feature will provide support for the Data Plane Development Kit (DPDK) in conjunction with Open vSwitch (OVS) for guest VMs and is targeted at the KVM hypervisor. The Data […]
Introduction Last year we implemented a new CA Framework on CloudStack 4.11 to make communications between CloudStack management servers it’s hypervisor agents more secure. As part of that work, we introduced the ability for CloudStack agents to connect to multiple management servers, avoiding the usage of an external load balancer. We’ve now extended the CA Framework by […]
