Documentation ¶
Overview ¶
Package ipam provides different allocators for assigning IP ranges to nodes. We currently support several kinds of IPAM allocators (these are denoted by the CIDRAllocatorType):
- RangeAllocator is an allocator that assigns PodCIDRs to nodes and works in conjunction with the RouteController to configure the network to get connectivity.
- CloudAllocator is an allocator that synchronizes PodCIDRs from IP ranges assignments from the underlying cloud platform.
- (Alpha only) IPAMFromCluster is an allocator that has the similar functionality as the RangeAllocator but also synchronizes cluster-managed ranges into the cloud platform.
- (Alpha only) IPAMFromCloud is the same as CloudAllocator (synchronizes from cloud into the cluster.)
Index ¶
- type CIDRAllocator
- func New(kubeClient clientset.Interface, cloud cloudprovider.Interface, ...) (CIDRAllocator, error)
- func NewCIDRRangeAllocator(client clientset.Interface, nodeInformer informers.NodeInformer, ...) (CIDRAllocator, error)
- func NewCloudCIDRAllocator(client clientset.Interface, cloud cloudprovider.Interface, ...) (CIDRAllocator, error)
- type CIDRAllocatorParams
- type CIDRAllocatorType
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type CIDRAllocator ¶
type CIDRAllocator interface { // AllocateOrOccupyCIDR looks at the given node, assigns it a valid // CIDR if it doesn't currently have one or mark the CIDR as used if // the node already have one. AllocateOrOccupyCIDR(node *v1.Node) error // ReleaseCIDR releases the CIDR of the removed node ReleaseCIDR(node *v1.Node) error // Run starts all the working logic of the allocator. Run(stopCh <-chan struct{}) }
CIDRAllocator is an interface implemented by things that know how to allocate/occupy/recycle CIDR for nodes.
func New ¶
func New(kubeClient clientset.Interface, cloud cloudprovider.Interface, nodeInformer informers.NodeInformer, allocatorType CIDRAllocatorType, allocatorParams CIDRAllocatorParams) (CIDRAllocator, error)
New creates a new CIDR range allocator.
func NewCIDRRangeAllocator ¶
func NewCIDRRangeAllocator(client clientset.Interface, nodeInformer informers.NodeInformer, allocatorParams CIDRAllocatorParams, nodeList *v1.NodeList) (CIDRAllocator, error)
NewCIDRRangeAllocator returns a CIDRAllocator to allocate CIDRs for node (one from each of clusterCIDRs) Caller must ensure subNetMaskSize is not less than cluster CIDR mask size. Caller must always pass in a list of existing nodes so the new allocator. Caller must ensure that ClusterCIDRs are semantically correct e.g (1 for non DualStack, 2 for DualStack etc..) can initialize its CIDR map. NodeList is only nil in testing.
func NewCloudCIDRAllocator ¶
func NewCloudCIDRAllocator(client clientset.Interface, cloud cloudprovider.Interface, nodeInformer informers.NodeInformer) (CIDRAllocator, error)
NewCloudCIDRAllocator creates a new cloud CIDR allocator.
type CIDRAllocatorParams ¶
type CIDRAllocatorParams struct { // ClusterCIDRs is list of cluster cidrs ClusterCIDRs []*net.IPNet // ServiceCIDR is primary service cidr for cluster ServiceCIDR *net.IPNet // SecondaryServiceCIDR is secondary service cidr for cluster SecondaryServiceCIDR *net.IPNet // NodeCIDRMaskSizes is list of node cidr mask sizes NodeCIDRMaskSizes []int }
CIDRAllocatorParams is parameters that's required for creating new cidr range allocator.
type CIDRAllocatorType ¶
type CIDRAllocatorType string
CIDRAllocatorType is the type of the allocator to use.
const ( // RangeAllocatorType is the allocator that uses an internal CIDR // range allocator to do node CIDR range allocations. RangeAllocatorType CIDRAllocatorType = "RangeAllocator" // CloudAllocatorType is the allocator that uses cloud platform // support to do node CIDR range allocations. CloudAllocatorType CIDRAllocatorType = "CloudAllocator" )