controller

Documentation

Index

• func ExtractCIDRPrefix(cidr string) string
• func GetInterfaceIPv4(ifaceName string) (string, error)
• type NetworkManager
  • func NewNetworkManager(executor *localexec.LocalClient, debug bool, log *logger.Logger) *NetworkManager
  • func (nm *NetworkManager) AddHostsEntry(ctx context.Context, clusterName, baseDomain, vip string) error
  • func (nm *NetworkManager) AddVIPAlias(ctx context.Context, iface, ip, cidr string) error
  • func (nm *NetworkManager) CheckVIPExists(ctx context.Context, iface, ip string) (bool, error)
  • func (nm *NetworkManager) RemoveHostsEntry(ctx context.Context, clusterName string) error
  • func (nm *NetworkManager) RemoveVIPAlias(ctx context.Context, iface, ip, cidr, controllerIP string) error
  • func (nm *NetworkManager) VerifyVIPPersistence(ctx context.Context, iface, ip string) (bool, error)

Functions

func ExtractCIDRPrefix

func ExtractCIDRPrefix(cidr string) string

ExtractCIDRPrefix extracts the prefix from a CIDR notation (e.g., "192.0.2.0/20" -> "20")

func GetInterfaceIPv4

func GetInterfaceIPv4(ifaceName string) (string, error)

GetInterfaceIPv4 discovers the primary IPv4 address of a given network interface (e.g., "eth0")

Types

type NetworkManager

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

NetworkManager handles local network configuration for the Controller node

func NewNetworkManager

func NewNetworkManager(executor *localexec.LocalClient, debug bool, log *logger.Logger) *NetworkManager

NewNetworkManager creates a new local NetworkManager instance

func (*NetworkManager) AddHostsEntry

func (nm *NetworkManager) AddHostsEntry(ctx context.Context, clusterName, baseDomain, vip string) error

AddHostsEntry appends the cluster API endpoints to the controller's /etc/hosts file so the local openshift-install binary can resolve them without modifying the system DNS.

func (*NetworkManager) AddVIPAlias

func (nm *NetworkManager) AddVIPAlias(ctx context.Context, iface, ip, cidr string) error

AddVIPAlias appends a secondary IP to the EXISTING connection profile via nmcli

func (*NetworkManager) CheckVIPExists

func (nm *NetworkManager) CheckVIPExists(ctx context.Context, iface, ip string) (bool, error)

CheckVIPExists checks if a VIP is already configured on an interface

func (*NetworkManager) RemoveHostsEntry

func (nm *NetworkManager) RemoveHostsEntry(ctx context.Context, clusterName string) error

RemoveHostsEntry safely removes the cluster's specific API endpoints from the hosts file

func (*NetworkManager) RemoveVIPAlias

func (nm *NetworkManager) RemoveVIPAlias(ctx context.Context, iface, ip, cidr, controllerIP string) error

RemoveVIPAlias dynamically identifies and removes a specific VIP alias from the interface while leaving all other active cluster VIPs and the primary IP completely intact.

func (*NetworkManager) VerifyVIPPersistence

func (nm *NetworkManager) VerifyVIPPersistence(ctx context.Context, iface, ip string) (bool, error)

VerifyVIPPersistence checks if the VIP is defined in the connection profile