util

Documentation

Index

• func FindNodeIPv6(node *corev1.Node) net.IP
• func FormatIPNets(ipNets []*net.IPNet) string
• func IsV4(ip net.IP) bool
• func IsV6(ip net.IP) bool
• func NewUID() string
• func ParseIPNets(ipNetStrings []string) ([]*net.IPNet, error)
• func ParseNodePodCIDRs(node *corev1.Node) ([]*net.IPNet, error)
• type Tables
  • func (t *Tables) InsertUnique(table, chain string, pos int, rulespec ...string) error
  • func (t *Tables) NewChainUnique(table, chain string) error

Functions

func FindNodeIPv6

func FindNodeIPv6(node *corev1.Node) net.IP

FindNodeIPv6 returns the first IPv6 address of the node's InternalIPs, nil if not found.

func FormatIPNets

func FormatIPNets(ipNets []*net.IPNet) string

FormatIPNets returns the string representation of a slice of net.IPNet.

func IsV4

func IsV4(ip net.IP) bool

IsV4 checks if a net.IP is an IPv4 address.

func IsV6

func IsV6(ip net.IP) bool

IsV6 checks if a net.IP is an IPv6 address.

func NewUID

func NewUID() string

NewUID tries to return a locally unique ID. Don't use it concurrently. Not thread safe.

func ParseIPNets

func ParseIPNets(ipNetStrings []string) ([]*net.IPNet, error)

ParseIPNets returns the parsed subnets.

func ParseNodePodCIDRs

func ParseNodePodCIDRs(node *corev1.Node) ([]*net.IPNet, error)

ParseNodePodCIDRs returns the pod CIDRs of the node.

Types

type Tables

type Tables struct {
	*iptables.IPTables
}

Tables wraps iptables.IPTables.

var (
	V4tables *Tables
	V6tables *Tables
)

func (*Tables) InsertUnique

func (t *Tables) InsertUnique(table, chain string, pos int, rulespec ...string) error

InsertUnique inserts a rule if it doesn't already exist.

func (*Tables) NewChainUnique

func (t *Tables) NewChainUnique(table, chain string) error

NewChainUnique creates a chain if it doesn't already exist.