1. Problem description
In Apache CloudStack (ACS), when a VM is deployed in a host with the KVM hypervisor, an XML file is created in the assigned host, which has a property shares that defines the weight of the VM to access the host CPU. The value of this property has no unit, and it is a relative measure to calculate how much CPU a given VM will have in the host. However, this value has a limit, which depends on the version of cgroup utilized by the host's kernel. The problem lies at the range value of shares that varies between both versions: [2, 264144] for cgroups version 1; and [1, 10000] for cgroups version 2. Currently, ACS calculates the value of shares using Equation 1, presented below, where CPU is the number of cores and speed is the CPU frequency; both specified in the VM's compute offering. Therefore, if a compute offering has, for example, 6 cores at 2 GHz, the shares value will be 12000 and an exception will be thrown by libvirt if the host utilizes cgroup v2. The second version is becoming the default one in current Linux distributions; thus, it is necessary to address this limitation.
Equation 1
shares = CPU * speed
Fixes: #6744
2. Proposed changes
To address the problem described, we propose to apply a scale conversion considering the max shares of the host. Using the same formula currently utilized by ACS, it is possible to calculate the maximum shares of a VM for a given host. In other words, using the number of cores and the nominal speed of the host's CPU as the upper limit of shares allowed to a VM. Then, this value will be scaled to the allowed interval of [1, 10000] of cgroup v2 by using a linear scale conversion.
The VM shares would be calculated as Equation 2, presented below, where VM requested shares is the requested shares value calculated using Equation 1, cgroup upper limit is fixed with a value of 10000 (cgroups v2 upper limit), and host max shares is the maximum shares value of the host, calculated using Equation 1. Using Equation 2, the only case where a VM passes the cgroup v2 limit is when the user requests more resources than the host has, which is not possible with the current implementation of ACS.
Equation 2
shares = (VM requested shares * cgroup upper limit)/host max shares
To implement the proposal, the following APIs will be updated: deployVirtualMachine, migrateVirtualMachine and scaleVirtualMachine. When a VM is being deployed, a new verification will be added to find a suitable host. The max shares of each host will be calculated, and the VM calculated shares will be verified if it does not surpass the host's value. Likewise, the migration of VMs will have a similar new verification. Lastly, the scale of VMs will also have the same verification for the VM's host.
To determine the max shares of a given host, we will use the same equation currently used in ACS for calculating the shares of VMs, presented in Section 1. When Equation 1 is used to determine the maximum shares of a host, CPU is the number of cores of the host, and speed is the nominal CPU speed, i.e., considering the CPU's base frequency.
It is important to note that these changes are only for hosts with the KVM hypervisor using cgroup v2 for now.
This PR provides a new primary storage volume type called "FiberChannel" that allows access to volumes connected to hosts over fiber channel connections. It requires Multipath to provide path discovery and failover. Second, the PR adds an AdaptivePrimaryDatastoreProvider that abstracts how volumes are managed/orchestrated from the connector to communicate with the primary storage provider, using a ProviderAdapter interface, allowing the code interacting with the primary storage provider API's to be simpler and have no direct dependencies on Cloudstack code. Lastly, the PR provides an implementation of the ProviderAdapter classes for the HP Enterprise Primera line of storage solutions and the Pure Flash Array line of storage solutions.
* NSX: Add ALL LB IP to the list of route advertisements in tier1
* NSX: Support Source NAT on NSX Isolated networks
* NSX: Cks Support
* NSX: Create segment group on segment creation
* Add unit tests
* Remove group for segment before removing segment
* Create Distributed Firewall rules
* Remove distributed firewall policy on segment deletion
* Fix policy rule ID and add more unit tests
* Add support for routed NSX Isolated networks \n and non RFC 1918 compliant IPs
* Add support for routed NSX Isolated networks \n and non RFC 1918 compliant IPs
* Add Firewall rules
* build failure - fix unit test
* fix npes
* Add support to delete firewall rules
* update nsx cks offering
* add license
* update order of ports in PF & FW rules
* fix filter for getting transport zones
* CKS support changed - MTU updated, etc
* add LB for CKS on VPC
* address comments
* adapt upstream cks logic for vpc
* rever mtu hack
* update UI changes as per upstream fix
* change display test for CKS n/w offerings for isolated and VPC tiers
* add extra line for linter
* address comment
* revert list change
---------
Co-authored-by: nvazquez <nicovazquez90@gmail.com>
This PR adds the capability in CloudStack to convert VMware Instances disk(s) to KVM using virt-v2v and import them as CloudStack instances. It enables CloudStack operators to import VMware instances from vSphere into a KVM cluster managed by CloudStack. vSphere/VMware setup might be managed by CloudStack or be a standalone setup.
CloudStack will let the administrator select a VM from an existing VMware vCenter in the CloudStack environment or external vCenter requesting vCenter IP, Datacenter name and credentials.
The migrated VM will be imported as a KVM instance
The migration is done through virt-v2v: https://access.redhat.com/articles/1351473, https://www.ovirt.org/develop/release-management/features/virt/virt-v2v-integration.html
The migration process timeout can be set by the setting convert.instance.process.timeout
Before attempting the virt-v2v migration, CloudStack will create a clone of the source VM on VMware. The clone VM will be removed after the registration process finishes.
CloudStack will delegate the migration action to a KVM host and the host will attempt to migrate the VM invoking virt-v2v. In case the guest OS is not supported then CloudStack will handle the error operation as a failure
The migration process using virt-v2v may not be a fast process
CloudStack will not perform any check about the guest OS compatibility for the virt-v2v library as indicated on: https://access.redhat.com/articles/1351473.
* NSX: Create segment group on segment creation
* Add unit tests
* Remove group for segment before removing segment
* Create Distributed Firewall rules
* Remove distributed firewall policy on segment deletion
* Fix policy rule ID and add more unit tests
* Fix DROP action rules and transform tests
* Add new ACL rules
* Fixes
* associate security policies with groups and not to DFW and add deletion of rules
* Fix name convention
---------
Co-authored-by: Pearl Dsilva <pearl1594@gmail.com>
* NSX: Router Public nic to get IP from systemVM Ip range
* Fix VR IP address and setSourceNatIp command
* NSX: hide systemVM reserved IP range SourceNAT
* fix test
---------
Co-authored-by: nvazquez <nicovazquez90@gmail.com>
* modify NSX resource naming convention
* remove unused imports
* add a setup phase between desgin and implementation of a network for intermediary steps
* add method to all classes
This PR adds new functionality to copy snapshots across zones and take snapshots for multiple zones.
Copy functionality is similar to template copy. The source zone acts as the web server from where the destination zone(s) can download the snapshot files. For this purpose, a new API - `copySnapshot` has been added. The response for copySnapshot will be returning zone and download details from the first destination zone of the request. This behaviour is similar to the `copyTemplate` API.
In a similar manner, multiple zones can be selected while taking the snapshots or creating snapshot policies. For this snapshot will be taken in the base zone(in which volume is present) and then copied to the additional zones. A new parameter - `zoneids` has been added to `createSnapshot` and `createSnapshotPolicy` APIs.
As snapshots can be present on multiple zones (secondary stores), a new parameter `zoneid` has been added to delete the snapshot copy on a specific zone.
`listSnapshots` API has been updated to allow listing snapshot entries for different zones/datastores. New parameters - `showUnique`, `locationType` have been added.
Events generated during snapshot operations will now be linked to the snapshot itself rather than the volume of the snapshot.
`listSnapshotPolicies` and `createSnapshotPolicy` APIs will return zone details of the zones in which backup will be scheduled for the policy.
----
New API added
`copySnapshot`
Request and response params updated for APIs
```
- listSnapshots
- deleteSnapshot
- createTemplate
- listZones
- listSnapshotPolicies
- createSnapshotPolicy
```
UI updated for
- Snapshot detail view
- Create snapshot form
- Create snapshot policy form
- Create volume (from snapshot) form
- Create template (from snapshot) form
Doc PR: https://github.com/apache/cloudstack-documentation/pull/344
PR: https://github.com/apache/cloudstack/pull/7873
* Add tests
* add test for NsxGuestNetworkGuru
* add unit tests for NsxResource
* add unti tests for NsxElement
* cleanup
* [NSX] Refactor API wrapper operations
* update tests
* update tests - add nsxProviderServiceImpl test
* add unit test - NsxServiceImpl
* add license
* Big refactor
* Address review comment
* change network cidr to cidr to prevent NPE
* add domain and zone names to the various networks - vpc & tier
* fix tests
---------
Co-authored-by: nvazquez <nicovazquez90@gmail.com>
* [NSX] Refactor API wrapper operations
* Big refactor
* Address review comment
* change network cidr to cidr to prevent NPE
* add domain and zone names to the various networks - vpc & tier
---------
Co-authored-by: Pearl Dsilva <pearl1594@gmail.com>
* Trigger out of band VM state update via libvirt event when VM stops
* Add License headers, refactor nested try
---------
Co-authored-by: Marcus Sorensen <mls@apple.com>
* Allow configkey to set 'cloud-name' cloud-init metadata
* Update engine/api/src/main/java/com/cloud/vm/VirtualMachineManager.java
Co-authored-by: Daniel Augusto Veronezi Salvador <38945620+GutoVeronezi@users.noreply.github.com>
* Update server/src/main/java/com/cloud/network/NetworkModelImpl.java
Co-authored-by: Daniel Augusto Veronezi Salvador <38945620+GutoVeronezi@users.noreply.github.com>
* Update server/src/main/java/com/cloud/network/router/CommandSetupHelper.java
Co-authored-by: Daniel Augusto Veronezi Salvador <38945620+GutoVeronezi@users.noreply.github.com>
* Revert "Update server/src/main/java/com/cloud/network/router/CommandSetupHelper.java"
This reverts commit 8abc3e38c4f973227e77253a8bcf3c94827d187f.
* Revert "Update server/src/main/java/com/cloud/network/NetworkModelImpl.java"
This reverts commit 7f239be919112913d764b141e943acca4473f755.
* Rework/Fix review code suggestions
---------
Co-authored-by: Marcus Sorensen <mls@apple.com>
Co-authored-by: Daniel Augusto Veronezi Salvador <38945620+GutoVeronezi@users.noreply.github.com>
