Description

ClusterNetwork describes the cluster network. There is normally only one object of this type, named "default", which is created by the SDN network plugin based on the master configuration when the cluster is brought up for the first time.

Type

object

Required
  • clusterNetworks

  • serviceNetwork

Specification

Property Type Description

.apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

.clusterNetworks

array

ClusterNetworks is a list of ClusterNetwork objects that defines the global overlay network’s L3 space by specifying a set of CIDR and netmasks that the SDN can allocate addresses from.

.clusterNetworks[]

object

ClusterNetworkEntry defines an individual cluster network. The CIDRs cannot overlap with other cluster network CIDRs, CIDRs reserved for external ips, CIDRs reserved for service networks, and CIDRs reserved for ingress ips.

.hostsubnetlength

integer

HostSubnetLength is the number of bits of network to allocate to each node. eg, 8 would mean that each node would have a /24 slice of the overlay network for its pods

.kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

.metadata

ObjectMeta meta/v1

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

.mtu

integer

MTU is the MTU for the overlay network. This should be 50 less than the MTU of the network connecting the nodes. It is normally autodetected by the cluster network operator.

.network

string

Network is a CIDR string specifying the global overlay network’s L3 space

.pluginName

string

PluginName is the name of the network plugin being used

.serviceNetwork

string

ServiceNetwork is the CIDR range that Service IP addresses are allocated from

.vxlanPort

integer

VXLANPort sets the VXLAN destination port used by the cluster. It is set by the master configuration file on startup and cannot be edited manually. Valid values for VXLANPort are integers 1-65535 inclusive and if unset defaults to 4789. Changing VXLANPort allows users to resolve issues between openshift SDN and other software trying to use the same VXLAN destination port.

.clusterNetworks
Description

ClusterNetworks is a list of ClusterNetwork objects that defines the global overlay network's L3 space by specifying a set of CIDR and netmasks that the SDN can allocate addresses from.

Type

array

.clusterNetworks[]
Description

ClusterNetworkEntry defines an individual cluster network. The CIDRs cannot overlap with other cluster network CIDRs, CIDRs reserved for external ips, CIDRs reserved for service networks, and CIDRs reserved for ingress ips.

Type

object

Required
  • CIDR

  • hostSubnetLength

Property Type Description

CIDR

string

CIDR defines the total range of a cluster networks address space.

hostSubnetLength

integer

HostSubnetLength is the number of bits of the accompanying CIDR address to allocate to each node. eg, 8 would mean that each node would have a /24 slice of the overlay network for its pods.

API endpoints

The following API endpoints are available:

  • /apis/network.openshift.io/v1/clusternetworks

    • DELETE: delete collection of ClusterNetwork

    • GET: list objects of kind ClusterNetwork

    • POST: create a ClusterNetwork

  • /apis/network.openshift.io/v1/clusternetworks/{name}

    • DELETE: delete a ClusterNetwork

    • GET: read the specified ClusterNetwork

    • PATCH: partially update the specified ClusterNetwork

    • PUT: replace the specified ClusterNetwork

/apis/network.openshift.io/v1/clusternetworks

Table 1. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.

HTTP method

DELETE

Description

delete collection of ClusterNetwork

Table 2. Query parameters
Parameter Type Description

allowWatchBookmarks

boolean

allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. If the feature gate WatchBookmarks is not enabled in apiserver, this field is ignored.

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key".

This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

Table 3. HTTP responses
HTTP code Reponse body

200 - OK

Status meta/v1

401 - Unauthorized

Empty

HTTP method

GET

Description

list objects of kind ClusterNetwork

Table 4. Query parameters
Parameter Type Description

allowWatchBookmarks

boolean

allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. If the feature gate WatchBookmarks is not enabled in apiserver, this field is ignored.

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key".

This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

Table 5. HTTP responses
HTTP code Reponse body

200 - OK

ClusterNetworkList network.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

POST

Description

create a ClusterNetwork

Table 6. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldManager

string

fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint.

Table 7. Body parameters
Parameter Type Description

body

ClusterNetwork network.openshift.io/v1

Table 8. HTTP responses
HTTP code Reponse body

200 - OK

ClusterNetwork network.openshift.io/v1

201 - Created

ClusterNetwork network.openshift.io/v1

202 - Accepted

ClusterNetwork network.openshift.io/v1

401 - Unauthorized

Empty

/apis/network.openshift.io/v1/clusternetworks/{name}

Table 9. Global path parameters
Parameter Type Description

name

string

name of the ClusterNetwork

Table 10. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.

HTTP method

DELETE

Description

delete a ClusterNetwork

Table 11. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

gracePeriodSeconds

integer

The duration in seconds before the object should be deleted. Value must be non-negative integer. The value zero indicates delete immediately. If this value is nil, the default grace period for the specified type will be used. Defaults to a per object value if not specified. zero means delete immediately.

orphanDependents

boolean

Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. Should the dependent objects be orphaned. If true/false, the "orphan" finalizer will be added to/removed from the object's finalizers list. Either this field or PropagationPolicy may be set, but not both.

propagationPolicy

string

Whether and how garbage collection will be performed. Either this field or OrphanDependents may be set, but not both. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. Acceptable values are: 'Orphan' - orphan the dependents; 'Background' - allow the garbage collector to delete the dependents in the background; 'Foreground' - a cascading policy that deletes all dependents in the foreground.

Table 12. Body parameters
Parameter Type Description

body

DeleteOptions meta/v1

Table 13. HTTP responses
HTTP code Reponse body

200 - OK

Status meta/v1

202 - Accepted

Status meta/v1

401 - Unauthorized

Empty

HTTP method

GET

Description

read the specified ClusterNetwork

Table 14. Query parameters
Parameter Type Description

resourceVersion

string

When specified: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

Table 15. HTTP responses
HTTP code Reponse body

200 - OK

ClusterNetwork network.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

PATCH

Description

partially update the specified ClusterNetwork

Table 16. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldManager

string

fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint.

Table 17. Body parameters
Parameter Type Description

body

Patch meta/v1

Table 18. HTTP responses
HTTP code Reponse body

200 - OK

ClusterNetwork network.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

PUT

Description

replace the specified ClusterNetwork

Table 19. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldManager

string

fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint.

Table 20. Body parameters
Parameter Type Description

body

ClusterNetwork network.openshift.io/v1

Table 21. HTTP responses
HTTP code Reponse body

200 - OK

ClusterNetwork network.openshift.io/v1

201 - Created

ClusterNetwork network.openshift.io/v1

401 - Unauthorized

Empty