assign ipv6 addresses to linodes

Author: rahulait

go.mod

@@ -152,3 +152,5 @@ require (
 	sigs.k8s.io/structured-merge-diff/v4 v4.6.0 // indirect
 	sigs.k8s.io/yaml v1.4.0 // indirect
 )
+
+replace github.com/linode/linodego => github.com/linode/linodego v1.51.1-0.20250529150649-a12f95fbddd5

go.sum

@@ -177,8 +177,8 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/linode/linodego v1.52.1 h1:HJ1cz1n9n3chRP9UrtqmP91+xTi0Q5l+H/4z4tpkwgQ=
-github.com/linode/linodego v1.52.1/go.mod h1:zEN2sX+cSdp67EuRY1HJiyuLujoa7HqvVwNEcJv3iXw=
+github.com/linode/linodego v1.51.1-0.20250529150649-a12f95fbddd5 h1:qCTCFaliZIiYi3iIh9bYpGBL3t8f89qZvvNg4gyoHa8=
+github.com/linode/linodego v1.51.1-0.20250529150649-a12f95fbddd5/go.mod h1:zEN2sX+cSdp67EuRY1HJiyuLujoa7HqvVwNEcJv3iXw=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=

internal/controller/linodemachine_controller_helpers.go

@@ -495,6 +495,13 @@ func getVPCInterfaceConfig(ctx context.Context, machineScope *scope.MachineScope
 		IPv4: &linodego.VPCIPv4{
 			NAT1To1: ptr.To("any"),
 		},
+		IPv6: &linodego.InstanceConfigInterfaceCreateOptionsIPv6{
+			Ranges: []linodego.InstanceConfigInterfaceCreateOptionsIPv6Range{
+				{
+					Range: ptr.To("/64"),
+				},
+			},
+		},
 	}, nil
 }
 

internal/controller/linodevpc_controller_helpers.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/go-logr/logr"
 	"github.com/linode/linodego"
+	"k8s.io/utils/ptr"
 
 	infrav1alpha2 "github.com/linode/cluster-api-provider-linode/api/v1alpha2"
 	"github.com/linode/cluster-api-provider-linode/cloud/scope"
@@ -93,15 +94,28 @@ func updateVPCSpecSubnets(vpcScope *scope.VPCScope, vpc *linodego.VPC) {
 
 func linodeVPCSpecToVPCCreateConfig(vpcSpec infrav1alpha2.LinodeVPCSpec) *linodego.VPCCreateOptions {
 	subnets := make([]linodego.VPCSubnetCreateOptions, len(vpcSpec.Subnets))
+	vpcIPv6 := []linodego.VPCCreateOptionsIPv6{
+		{
+			Range: ptr.To("/48"),
+		},
+	}
+	subnetIPv6 := []linodego.VPCSubnetCreateOptionsIPv6{
+		{
+			Range: ptr.To("/56"),
+		},
+	}
 	for idx, subnet := range vpcSpec.Subnets {
 		subnets[idx] = linodego.VPCSubnetCreateOptions{
 			Label: subnet.Label,
 			IPv4:  subnet.IPv4,
+			IPv6:  subnetIPv6,
 		}
 	}
+
 	return &linodego.VPCCreateOptions{
 		Description: vpcSpec.Description,
 		Region:      vpcSpec.Region,
 		Subnets:     subnets,
+		IPv6:        vpcIPv6,
 	}
 }