allocator

package
v0.14.8 Latest Latest
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Published: Jul 23, 2024 License: Apache-2.0 Imports: 12 Imported by: 0

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type Allocator

type Allocator struct {
	// contains filtered or unexported fields
}

An Allocator tracks IP address pools and allocates addresses from them.

func New

func New() *Allocator

New returns an Allocator managing no pools.

func (*Allocator) Allocate

func (a *Allocator) Allocate(svcKey string, svc *v1.Service, serviceIPFamily ipfamily.Family, ports []Port, sharingKey, backendKey string) ([]net.IP, error)

Allocate assigns any available and assignable IP to service.

func (*Allocator) AllocateFromPool

func (a *Allocator) AllocateFromPool(svcKey string, svc *v1.Service, serviceIPFamily ipfamily.Family, poolName string, ports []Port, sharingKey, backendKey string) ([]net.IP, error)

AllocateFromPool assigns an available IP from pool to service.

func (*Allocator) Assign

func (a *Allocator) Assign(svcKey string, svc *v1.Service, ips []net.IP, ports []Port, sharingKey, backendKey string) error

Assign assigns the requested ip to svc, if the assignment is permissible by sharingKey and backendKey.

func (*Allocator) IPs added in v0.14.0

func (a *Allocator) IPs(svc string) []net.IP

IPs returns the allocated IPs of a service.

func (*Allocator) Pool added in v0.3.0

func (a *Allocator) Pool(svc string) string

Pool returns the pool from which service's IP was allocated. If service has no IP allocated, "" is returned.

func (*Allocator) PoolForIP added in v0.14.0

func (a *Allocator) PoolForIP(ips []net.IP) *config.Pool

PoolForIP returns the pool structure associated with an IP.

func (*Allocator) SetPools

func (a *Allocator) SetPools(pools *config.Pools)

SetPools updates the set of address pools that the allocator owns.

func (*Allocator) Unassign

func (a *Allocator) Unassign(svc string)

Unassign frees the IP associated with service, if any.

type Port added in v0.6.0

type Port struct {
	Proto string
	Port  int
}

Port represents one port in use by a service.

func (Port) String added in v0.6.0

func (p Port) String() string

String returns a text description of the port.

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