462 lines
12 KiB
Go
462 lines
12 KiB
Go
// Copyright 2019 the Kilo authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package k8s
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import (
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"net"
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"testing"
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"github.com/kylelemons/godebug/pretty"
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v1 "k8s.io/api/core/v1"
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"github.com/squat/kilo/pkg/k8s/apis/kilo/v1alpha1"
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"github.com/squat/kilo/pkg/mesh"
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"github.com/squat/kilo/pkg/wireguard"
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)
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func TestTranslateNode(t *testing.T) {
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for _, tc := range []struct {
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name string
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annotations map[string]string
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labels map[string]string
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out *mesh.Node
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subnet string
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}{
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{
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name: "empty",
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annotations: nil,
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out: &mesh.Node{},
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},
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{
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name: "invalid ips",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1",
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internalIPAnnotationKey: "foo",
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},
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out: &mesh.Node{},
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},
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{
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name: "valid ips",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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internalIPAnnotationKey: "10.0.0.2/32",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")}, Port: mesh.DefaultKiloPort},
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InternalIP: &net.IPNet{IP: net.ParseIP("10.0.0.2"), Mask: net.CIDRMask(32, 32)},
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},
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},
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{
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name: "invalid subnet",
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annotations: map[string]string{},
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out: &mesh.Node{},
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subnet: "foo",
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},
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{
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name: "normalize subnet",
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annotations: map[string]string{},
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out: &mesh.Node{
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Subnet: &net.IPNet{IP: net.ParseIP("10.2.0.0"), Mask: net.CIDRMask(24, 32)},
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},
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subnet: "10.2.0.1/24",
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},
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{
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name: "valid subnet",
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annotations: map[string]string{},
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out: &mesh.Node{
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Subnet: &net.IPNet{IP: net.ParseIP("10.2.1.0"), Mask: net.CIDRMask(24, 32)},
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},
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subnet: "10.2.1.0/24",
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},
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{
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name: "region",
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labels: map[string]string{
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RegionLabelKey: "a",
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},
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out: &mesh.Node{
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Location: "a",
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},
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},
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{
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name: "region override",
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annotations: map[string]string{
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locationAnnotationKey: "b",
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},
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labels: map[string]string{
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RegionLabelKey: "a",
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},
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out: &mesh.Node{
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Location: "b",
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},
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},
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{
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name: "invalid endpoint override",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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forceEndpointAnnotationKey: "-10.0.0.2:51821",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")}, Port: mesh.DefaultKiloPort},
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},
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},
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{
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name: "endpoint override",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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forceEndpointAnnotationKey: "10.0.0.2:51821",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.2")}, Port: 51821},
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},
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},
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{
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name: "wireguard persistent keepalive override",
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annotations: map[string]string{
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persistentKeepaliveKey: "25",
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},
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out: &mesh.Node{
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PersistentKeepalive: 25,
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},
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},
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{
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name: "invalid internal IP override",
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annotations: map[string]string{
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internalIPAnnotationKey: "10.1.0.1/24",
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forceInternalIPAnnotationKey: "-10.1.0.2/24",
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},
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out: &mesh.Node{
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InternalIP: &net.IPNet{IP: net.ParseIP("10.1.0.1"), Mask: net.CIDRMask(24, 32)},
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NoInternalIP: false,
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},
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},
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{
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name: "internal IP override",
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annotations: map[string]string{
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internalIPAnnotationKey: "10.1.0.1/24",
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forceInternalIPAnnotationKey: "10.1.0.2/24",
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},
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out: &mesh.Node{
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InternalIP: &net.IPNet{IP: net.ParseIP("10.1.0.2"), Mask: net.CIDRMask(24, 32)},
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NoInternalIP: false,
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},
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},
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{
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name: "invalid time",
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annotations: map[string]string{
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lastSeenAnnotationKey: "foo",
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},
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out: &mesh.Node{},
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},
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{
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name: "complete",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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forceEndpointAnnotationKey: "10.0.0.2:51821",
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forceInternalIPAnnotationKey: "10.1.0.2/32",
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internalIPAnnotationKey: "10.1.0.1/32",
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keyAnnotationKey: "foo",
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lastSeenAnnotationKey: "1000000000",
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leaderAnnotationKey: "",
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locationAnnotationKey: "b",
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persistentKeepaliveKey: "25",
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wireGuardIPAnnotationKey: "10.4.0.1/16",
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},
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labels: map[string]string{
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RegionLabelKey: "a",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.2")}, Port: 51821},
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NoInternalIP: false,
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InternalIP: &net.IPNet{IP: net.ParseIP("10.1.0.2"), Mask: net.CIDRMask(32, 32)},
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Key: []byte("foo"),
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LastSeen: 1000000000,
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Leader: true,
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Location: "b",
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PersistentKeepalive: 25,
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Subnet: &net.IPNet{IP: net.ParseIP("10.2.1.0"), Mask: net.CIDRMask(24, 32)},
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WireGuardIP: &net.IPNet{IP: net.ParseIP("10.4.0.1"), Mask: net.CIDRMask(16, 32)},
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},
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subnet: "10.2.1.0/24",
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},
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{
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name: "no InternalIP",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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internalIPAnnotationKey: "",
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keyAnnotationKey: "foo",
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lastSeenAnnotationKey: "1000000000",
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locationAnnotationKey: "b",
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persistentKeepaliveKey: "25",
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wireGuardIPAnnotationKey: "10.4.0.1/16",
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},
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labels: map[string]string{
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RegionLabelKey: "a",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")}, Port: 51820},
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InternalIP: nil,
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Key: []byte("foo"),
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LastSeen: 1000000000,
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Leader: false,
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Location: "b",
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PersistentKeepalive: 25,
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Subnet: &net.IPNet{IP: net.ParseIP("10.2.1.0"), Mask: net.CIDRMask(24, 32)},
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WireGuardIP: &net.IPNet{IP: net.ParseIP("10.4.0.1"), Mask: net.CIDRMask(16, 32)},
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},
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subnet: "10.2.1.0/24",
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},
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{
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name: "Force no internal IP",
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annotations: map[string]string{
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endpointAnnotationKey: "10.0.0.1:51820",
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internalIPAnnotationKey: "10.1.0.1/32",
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forceInternalIPAnnotationKey: "",
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keyAnnotationKey: "foo",
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lastSeenAnnotationKey: "1000000000",
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locationAnnotationKey: "b",
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persistentKeepaliveKey: "25",
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wireGuardIPAnnotationKey: "10.4.0.1/16",
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},
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labels: map[string]string{
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RegionLabelKey: "a",
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},
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out: &mesh.Node{
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Endpoint: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")}, Port: 51820},
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NoInternalIP: true,
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InternalIP: nil,
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Key: []byte("foo"),
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LastSeen: 1000000000,
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Leader: false,
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Location: "b",
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PersistentKeepalive: 25,
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Subnet: &net.IPNet{IP: net.ParseIP("10.2.1.0"), Mask: net.CIDRMask(24, 32)},
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WireGuardIP: &net.IPNet{IP: net.ParseIP("10.4.0.1"), Mask: net.CIDRMask(16, 32)},
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},
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subnet: "10.2.1.0/24",
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},
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} {
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n := &v1.Node{}
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n.ObjectMeta.Annotations = tc.annotations
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n.ObjectMeta.Labels = tc.labels
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n.Spec.PodCIDR = tc.subnet
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node := translateNode(n, RegionLabelKey)
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if diff := pretty.Compare(node, tc.out); diff != "" {
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t.Errorf("test case %q: got diff: %v", tc.name, diff)
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}
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}
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}
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func TestTranslatePeer(t *testing.T) {
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for _, tc := range []struct {
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name string
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out *mesh.Peer
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spec v1alpha1.PeerSpec
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}{
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{
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name: "empty",
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out: &mesh.Peer{},
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},
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{
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name: "invalid ips",
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spec: v1alpha1.PeerSpec{
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AllowedIPs: []string{
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"10.0.0.1",
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"foo",
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},
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},
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out: &mesh.Peer{},
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},
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{
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name: "valid ips",
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spec: v1alpha1.PeerSpec{
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AllowedIPs: []string{
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"10.0.0.1/24",
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"10.0.0.2/32",
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},
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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AllowedIPs: []*net.IPNet{
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{IP: net.ParseIP("10.0.0.1"), Mask: net.CIDRMask(24, 32)},
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{IP: net.ParseIP("10.0.0.2"), Mask: net.CIDRMask(32, 32)},
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},
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},
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},
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},
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{
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name: "invalid endpoint ip",
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spec: v1alpha1.PeerSpec{
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Endpoint: &v1alpha1.PeerEndpoint{
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DNSOrIP: v1alpha1.DNSOrIP{
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IP: "foo",
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},
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Port: mesh.DefaultKiloPort,
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},
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},
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out: &mesh.Peer{},
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},
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{
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name: "only endpoint port",
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spec: v1alpha1.PeerSpec{
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Endpoint: &v1alpha1.PeerEndpoint{
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Port: mesh.DefaultKiloPort,
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},
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},
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out: &mesh.Peer{},
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},
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{
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name: "valid endpoint ip",
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spec: v1alpha1.PeerSpec{
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Endpoint: &v1alpha1.PeerEndpoint{
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DNSOrIP: v1alpha1.DNSOrIP{
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IP: "10.0.0.1",
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},
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Port: mesh.DefaultKiloPort,
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},
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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Endpoint: &wireguard.Endpoint{
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DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")},
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Port: mesh.DefaultKiloPort,
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},
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},
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},
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},
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{
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name: "valid endpoint DNS",
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spec: v1alpha1.PeerSpec{
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Endpoint: &v1alpha1.PeerEndpoint{
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DNSOrIP: v1alpha1.DNSOrIP{
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DNS: "example.com",
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},
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Port: mesh.DefaultKiloPort,
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},
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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Endpoint: &wireguard.Endpoint{
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DNSOrIP: wireguard.DNSOrIP{DNS: "example.com"},
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Port: mesh.DefaultKiloPort,
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},
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},
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},
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},
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{
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name: "empty key",
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spec: v1alpha1.PeerSpec{
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PublicKey: "",
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},
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out: &mesh.Peer{},
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},
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{
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name: "valid key",
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spec: v1alpha1.PeerSpec{
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PublicKey: "foo",
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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PublicKey: []byte("foo"),
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},
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},
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},
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{
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name: "invalid keepalive",
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spec: v1alpha1.PeerSpec{
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PersistentKeepalive: -1,
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},
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out: &mesh.Peer{},
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},
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{
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name: "valid keepalive",
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spec: v1alpha1.PeerSpec{
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PersistentKeepalive: 1,
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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PersistentKeepalive: 1,
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},
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},
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},
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{
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name: "valid preshared key",
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spec: v1alpha1.PeerSpec{
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PresharedKey: "psk",
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},
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out: &mesh.Peer{
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Peer: wireguard.Peer{
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PresharedKey: []byte("psk"),
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},
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},
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},
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} {
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p := &v1alpha1.Peer{}
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p.Spec = tc.spec
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peer := translatePeer(p)
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if diff := pretty.Compare(peer, tc.out); diff != "" {
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t.Errorf("test case %q: got diff: %v", tc.name, diff)
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}
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}
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}
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func TestParseEndpoint(t *testing.T) {
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for _, tc := range []struct {
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name string
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endpoint string
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out *wireguard.Endpoint
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}{
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{
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name: "empty",
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endpoint: "",
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out: nil,
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},
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{
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name: "invalid IP",
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endpoint: "10.0.0.:51820",
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out: nil,
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},
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{
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name: "invalid hostname",
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endpoint: "foo-:51820",
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out: nil,
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},
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{
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name: "invalid port",
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endpoint: "10.0.0.1:100000000",
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out: nil,
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},
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{
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name: "valid IP",
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endpoint: "10.0.0.1:51820",
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out: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("10.0.0.1")}, Port: mesh.DefaultKiloPort},
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},
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{
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name: "valid IPv6",
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endpoint: "[ff02::114]:51820",
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out: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{IP: net.ParseIP("ff02::114")}, Port: mesh.DefaultKiloPort},
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},
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{
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name: "valid hostname",
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endpoint: "foo:51821",
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out: &wireguard.Endpoint{DNSOrIP: wireguard.DNSOrIP{DNS: "foo"}, Port: 51821},
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},
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} {
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endpoint := parseEndpoint(tc.endpoint)
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if diff := pretty.Compare(endpoint, tc.out); diff != "" {
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t.Errorf("test case %q: got diff: %v", tc.name, diff)
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}
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}
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}
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