Cloud provider — OpenStack: Custom Resources

Parameters of a group of OpenStack servers used by machine-controller-manager (the node-manager module).

The CloudInstanceClass resource of the node-manager module refers to this resource.

• specobject

  Required value

  • spec.additionalNetworksarray of strings

    Paths to networks that VirtualMachines’ secondary NICs will connect to.

    By default: the value from OpenStackCloudDiscoveryData is used.

    Example:

    additionalNetworks:
    - BGP-network-VLAN-3894
    - External-VLAN-3699
    

  • spec.additionalSecurityGroupsarray of strings

    Security groups that will be applied to VM’s network ports in addition to security groups set in a cloud provider configuration.

    They allow you to set firewall rules for provisioned instances.

    The SecurityGroups may not be supported by the cloud provider.

    Example:

    additionalSecurityGroups:
    - security-group-1
    - security-group-2
    

  • spec.additionalTagsobject

    The additional tags to attach to the instances created (in addition to those specified in the cloud provider configuration).

    Example:

    additionalTags:
      project: cms-production
      severity: critical
    

  • spec.capacityobject

    Instance capacity for non-standard instance types (the flavorName parameter).

    Cluster-autoscaler uses the parameter for scheduling only when there are no nodes in NodeGroup yet (if minPerZone equal to 0). If there are already nodes in the NodeGroup, then cluster-autoscaler uses the actual node capacity (CPU, memory) when planning, and does not use the capacity parameter.

    The parameter must be specified only for non-standard instance types. Info about the capacity of standard instance types (m1.medium, m1.large, etc.) is embedded in Deckhouse.

    • spec.capacity.cpuinteger or string

      Required value

      Node vCPU resources.

      Pattern: ^[0-9]+m?$

      Example:

      cpu: 1000m
      

    • spec.capacity.memoryinteger or string

      Required value

      Node memory resources.

      Pattern: ^[0-9]+(\.[0-9]+)?(E|P|T|G|M|k|Ei|Pi|Ti|Gi|Mi|Ki)?$

      Example:

      memory: 1500Mi
      

  • spec.flavorNamestring

    Required value

    Flavor of OpenStack servers.

    Get a list of all available flavors: openstack flavor list.

    For all non-master nodes it is advisable to use flavor’s with a local disk. If cloud provider supports local disks they are usually faster and cheaper. The disadvantage of using such flavors is the inability to migrate nodes between hypervisors.

    Flavor create example: openstack flavor create c4m8d50 --ram 8192 --disk 50 --vcpus 4

    Example:

    flavorName: m1.medium
    

  • spec.imageNamestring

    Not required value.

    Image to use while provisioning OpenStack servers.

    Use this command to get a list of available images: openstack image list.

    Caution! Currently, only Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Centos 7, Centos 8, Centos 9, Debian 9, Debian 10, Debian 11 are supported and tested to work.

    By default: either OpenStackCloudDiscoveryData value or instances.imageName is used.

    Example:

    imageName: ubuntu-18-04-cloud-amd64
    

  • spec.mainNetworkstring

    Not required value.

    Path to the network that VirtualMachines’ primary NICs will connect to (default gateway).

    By default: the value from OpenStackCloudDiscoveryData is used.

    Example:

    mainNetwork: k8s-msk-178
    

  • spec.rootDiskSizeinteger

    Not required value.

    The size of a root disk (in gigabytes). This parameter also has influence on type of volume that will be used for root disk; the “How to use rootDiskSize and when it is preferred” section describes how to use it.

    Example:

    rootDiskSize: 20