OpenStackClusterConfiguration
Version: deckhouse.io/v1
Describes the configuration of a cloud cluster in OpenStack.
Used by the cloud provider if a cluster’s control plane is hosted in the cloud.
Run the following command to change the configuration in a running cluster:
kubectl -n d8-system exec -ti deploy/deckhouse -- deckhouse-controller edit provider-cluster-configuration
Example:
apiVersion: deckhouse.io/v1
kind: OpenStackClusterConfiguration
layout: Standard
sshPublicKey: "<SSH_PUBLIC_KEY>"
zones:
- eu-3a
standard:
internalNetworkDNSServers:
- 8.8.8.8
internalNetworkCIDR: 192.168.195.0/24
internalNetworkSecurity: false
externalNetworkName: external-network
provider:
authURL: "<AUTH_URL>"
domainName: "<DOMAIN_NAME>"
tenantID: "<TENANT_ID>"
username: "<USERNAME>"
password: "<PASSWORD>"
region: eu-3
masterNodeGroup:
replicas: 1
instanceClass:
rootDiskSize: 20
flavorName: m1.large
imageName: debian-11-genericcloud-amd64-20220911-1135
volumeTypeMap:
eu-3a: fast.eu-3a
nodeGroups:
- name: front
replicas: 2
instanceClass:
flavorName: m1.large
imageName: debian-11-genericcloud-amd64-20220911-1135
rootDiskSize: 20
configDrive: false
floatingIPPools:
- public
- shared
additionalSecurityGroups:
- sec_group_1
- sec_group_2
zones:
- eu-1a
- eu-1b
- apiVersion
Required value
Allowed values:
deckhouse.io/v1
,deckhouse.io/v1alpha1
- kind
Required value
Allowed values:
OpenStackClusterConfiguration
- layout
Required value
The way resources are located in the cloud.
Read more about possible provider layouts.
- masterNodeGroup
Required value
The definition of the master’s NodeGroup.
Caution! After changing the parameters of the section, you need to run
dhctl converge
for the changes to take effect.- masterNodeGroup.instanceClass
Required value
Partial contents of the fields of the OpenStackInstanceClass.
- masterNodeGroup.instanceClass.additionalSecurityGroups
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. - object
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
- masterNodeGroup.instanceClass.etcdDiskSizeGb
Etcd disk size in gigabytes.
Default:
10
Example:
etcdDiskSizeGb: 10
- masterNodeGroup.instanceClass.flavorName
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
- masterNodeGroup.instanceClass.imageName
Required value
Image to use while provisioning OpenStack servers.
Use this command to get a list of available images:
openstack image list
.The list of OS and their versions supported by Deckhouse can be found in the documentation (take into account the Deckhouse version used).
- masterNodeGroup.instanceClass.rootDiskSize
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.
- masterNodeGroup.replicas
Required value
The number of master nodes to create. It is important to have an odd number of masters to ensure a quorum.
Allowed values:
1 <= X
- masterNodeGroup.serverGroup
The ServerGroup object groups instances together. The instances in the group are placed on the same hypervisor (affinity) or different hypervisors (anti-affinity). This allows you to increase the fault tolerance of the cluster.
- masterNodeGroup.serverGroup.manuallyManaged
- masterNodeGroup.serverGroup.manuallyManaged.id
Required value
The id of the existing
ServerGroup
object managed outside of Deckhouse.
- masterNodeGroup.serverGroup.policy
Required value
The policy that determines how instances are distributed among hypervisors.
AntiAffinity
— instances are placed on different hypervisors. This policy is managed by Deckhouse.ManuallyManaged
— instances are placed on different hypervisors. This policy is managed outside of Deckhouse.
Allowed values:
AntiAffinity
,ManuallyManaged
- masterNodeGroup.volumeTypeMap
Required value
A dictionary of disk types for storing etcd data and Kubernetes configuration files.
Format of dictionary elements:
<AVAILABILITY ZONE>: <VOLUME TYPE>
(see the example).If the
rootDiskSize
parameter is specified, the same disk type will be used for the VM’s boot drive.We recommend using the fastest disks provided by the provider in all cases.
If the value specified in
replicas
exceeds the number of elements in the dictionary, the master nodes whose number exceeds the length of the dictionary get the values starting from the beginning of the dictionary. For example, ifreplicas: 5
, then master-0, master-2, master-4 will have thefast-eu-1a
disk type, while master-1, master-3 will have thefast-eu-1b
disk type.Useful commands:
openstack availability zone list
— get list of availability zones.openstack volume type list
— get list of volume types.
Example:
volumeTypeMap: eu-1a: fast-eu-1a eu-1b: fast-eu-1b
- nodeGroups
An array of additional NodeGroups for creating static nodes (e.g., for dedicated front nodes or gateways).
- nodeGroups.instanceClass.additionalNetworks
Paths to networks that VirtualMachines’ secondary NICs will connect to. Get a list of all available networks:
openstack network list
.Example:
additionalNetworks: - BGP-network-VLAN-3894 - External-VLAN-3699
- nodeGroups.instanceClass.additionalSecurityGroups
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. - object
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
- nodeGroups.instanceClass.configDrive
Not required value.
Specifies whether an additional disk containing the bootstrapping configuration will be mounted to the node.
You must set it if DHCP is disabled in the
mainNetwork
.Default:
false
- nodeGroups.instanceClass.flavorName
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
- nodeGroups.instanceClass.floatingIPPools
A list of networks to assign Floating IPs to nodes.
- nodeGroups.instanceClass.imageName
Required value
Image to use while provisioning OpenStack servers.
Use this command to get a list of available images:
openstack image list
.The list of OS and their versions supported by Deckhouse can be found in the documentation (take into account the Deckhouse version used).
- nodeGroups.instanceClass.mainNetwork
Required value
Path to the network that VirtualMachines’ primary NICs will connect to (default gateway). Get a list of all available networks:
openstack network list
. - nodeGroups.instanceClass.networksWithSecurityDisabled
A list of
mainNetwork
andadditionalNetworks
in whichSecurityGroups
andAllowedAddressPairs
on ports CANNOT be configured. - nodeGroups.instanceClass.rootDiskSize
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.
- nodeGroups.name
The name of the NodeGroup to use for generating node names.
- nodeGroups.nodeTemplate
Parameters of Node objects in Kubernetes to add after registering the node.
- nodeGroups.nodeTemplate.annotations
The same as the
metadata.annotations
standard field.Example:
annotations: ai.fleet.com/discombobulate: 'true'
- nodeGroups.nodeTemplate.labels
A list of labels to attach to cluster resources.
The same as the
metadata.labels
standard field.Note that you have to re-create all the machines to add new tags if tags were modified in the running cluster.
Example:
labels: environment: production app: warp-drive-ai
- nodeGroups.nodeTemplate.taints
The same as the
.spec.taints
field of the Node object.Caution! Only the
effect
,key
,values
fields are available.Example:
taints: - effect: NoExecute key: ship-class value: frigate
- nodeGroups.nodeTemplate.taints.effect
Allowed values:
NoSchedule
,PreferNoSchedule
,NoExecute
- nodeGroups.nodeTemplate.taints.key
- nodeGroups.nodeTemplate.taints.value
- nodeGroups.replicas
The number of nodes to create.
- nodeGroups.volumeTypeMap
A dictionary of disk types for root drive.
Format of dictionary elements:
<AVAILABILITY ZONE>: <VOLUME TYPE>
(see the example).If the value specified in
replicas
exceeds the number of elements in the dictionary, the nodes whose number exceeds the length of the dictionary get the values starting from the beginning of the dictionary. For example, ifreplicas: 5
, then worker-0, worker-2, worker-4 will have thefast-eu-1a
disk type, while worker-1, worker-3 will have thefast-eu-1b
disk type.Useful commands:
openstack availability zone list
— get list of availability zones.openstack volume type list
— get list of volume types.
Example:
volumeTypeMap: eu-1a: fast-eu-1a eu-1b: fast-eu-1b
- nodeGroups.zones
Not required value.
A limited set of zones in which nodes can be created.
- provider
Required value
Contains settings to connect to the OpenStack API.
These settings are the same as those in the
connection
field of the cloud-provider-openstack module.- provider.authURL
An OpenStack Identity API URL.
- provider.caCert
Specify the CA x509 certificate used for signing if the OpenStack API has a self-signed certificate. Certificate should be passed in PEM format as multiline string.
Example:
caCert: -----BEGIN CERTIFICATE----- MIIFyDCCBLCgAwIBAgIQBwDIWH1asdaKNaALUa4NUzANBgkqhkiG9w0BAQsFADBc ... -----END CERTIFICATE-----
- provider.domainName
The domain name.
OS_USER_DOMAIN_NAME
variable from the openrc file. - provider.password
The user’s password.
- provider.region
The OpenStack region where the cluster will be deployed.
- provider.tenantID
The project id.
Cannot be used together with
tenantName
. - provider.tenantName
The project name.
Cannot be used together with
tenantID
. - provider.username
The name of the user that has full project privileges.
- simple.externalNetworkDHCP
This parameter defines if DHCP is enabled in the external network.
Default:
true
- simple.externalNetworkName
Required value
The name of the network for external connections. Get a list of all available networks:
openstack network list
. - simple.podNetworkMode
Sets the traffic mode for the network that the pods use to communicate with each other (usually, it is an internal network; however, there can be exceptions):
DirectRouting
— nodes are directly routed (SecurityGroups are disabled in this mode).VXLAN
— direct routing does NOT work between nodes, VXLAN must be used (SecurityGroups are disabled in this mode).
Caution! After changing this parameter, you need to run
dhctl converge
.Caution! All cluster nodes must be rebooted after switching work mode from/to VXLAN.
Default:
"VXLAN"
Allowed values:
VXLAN
,DirectRouting
- simpleWithInternalNetwork.externalNetworkName
The name of the network for external connections. Get a list of all available networks:
openstack network list
. - simpleWithInternalNetwork.internalSubnetName
Required value
The name of the subnet in which the cluster nodes will run.
- simpleWithInternalNetwork.masterWithExternalFloatingIP
Defines if Floating IP must be assigned to master nodes.
Default:
true
- simpleWithInternalNetwork.podNetworkMode
Sets the traffic mode for the network that the pods use to communicate with each other (usually, it is an internal network; however, there can be exceptions):
DirectRouting
— nodes are directly routed (SecurityGroups are disabled in this mode).DirectRoutingWithPortSecurityEnabled
— direct routing is enabled between the nodes, but only if the range of addresses of the internal network is explicitly allowed in OpenStack for Ports:- Caution! Make sure that the
username
can editAllowedAddressPairs
on Ports connected to theinternalNetworkName
network. Usually, an OpenStack user doesn’t have such a privilege if the network has theshared
flag set.
- Caution! Make sure that the
VXLAN
— direct routing does NOT work between nodes, VXLAN must be used (SecurityGroups
are disabled in this mode).
Caution! After changing this parameter, you need to run
dhctl converge
.Caution! All cluster nodes must be rebooted after switching work mode from/to VXLAN.
Default:
"DirectRoutingWithPortSecurityEnabled"
Allowed values:
VXLAN
,DirectRouting
,DirectRoutingWithPortSecurityEnabled
- sshAllowList
A list of CIDR’s allowed to connect to nodes via SSH.
By default,
0.0.0.0/0
. - sshPublicKey
Required value
A public key for accessing nodes.
- standard.bastion
The definition of the bastion instance.
- object
The additional tags to attach to the instance created (in addition to those specified in the cloud provider configuration).
Example:
additionalTags: project: cms-production severity: critical
- standard.bastion.instanceClass.flavorName
Required value
Flavor of OpenStack servers.
Get a list of all available flavors:
openstack flavor list
. - standard.bastion.instanceClass.imageName
Required value
Image to use while provisioning OpenStack servers.
Use this command to get a list of available images:
openstack image list
.The list of OS and their versions supported by Deckhouse can be found in the documentation (take into account the Deckhouse version used).
- standard.bastion.instanceClass.rootDiskSize
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.
Default:
50
- standard.bastion.volumeType
Root disk type.
- standard.bastion.zone
The zone to create an instance for the bastion node.
- standard.externalNetworkName
Required value
The name of the network for external connections. Get a list of all available networks:
openstack network list
. - standard.internalNetworkCIDR
Required value
Routing for the internal cluster network.
Pattern:
^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/(3[0-2]|[1-2][0-9]|[0-9]))$
- standard.internalNetworkDNSServers
Required value
A list of addresses of the recursive DNSs of the internal cluster network.
- Element of the array
Pattern:
^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$
- standard.internalNetworkSecurity
Defines whether SecurityGroups and AllowedAddressPairs must be configured for ports of the internal network.
Default:
true
- standardWithNoRouter.externalNetworkDHCP
This parameter defines if DHCP is enabled in the external network.
Default:
true
- standardWithNoRouter.externalNetworkName
Required value
The name of the network for external connections. Get a list of all available networks:
openstack network list
. - standardWithNoRouter.internalNetworkCIDR
Required value
Routing for the internal cluster network.
Pattern:
^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/(3[0-2]|[1-2][0-9]|[0-9]))$
- standardWithNoRouter.internalNetworkSecurity
Defines whether SecurityGroups and AllowedAddressPairs must be configured for ports of the internal network.
Default:
true
- object
Not required value.
A dictionary of tags to create on all resources that support this feature.
You have to re-create all the machines to add new tags if tags were modified in the running cluster.
- zones
Not required value.
The globally restricted set of zones that this Cloud Provider works with.