89 lines
2 KiB
Go
89 lines
2 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package troubleshoot
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import (
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"io"
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"os"
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"testing"
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envoy_admin_v3 "github.com/envoyproxy/go-control-plane/envoy/admin/v3"
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envoy_listener_v3 "github.com/envoyproxy/go-control-plane/envoy/config/listener/v3"
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"github.com/stretchr/testify/require"
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"google.golang.org/protobuf/encoding/protojson"
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"google.golang.org/protobuf/proto"
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)
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func TestGetUpstreamIPsFromFilterChain(t *testing.T) {
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file, err := os.Open("testdata/upstreams/config.json")
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require.NoError(t, err)
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jsonBytes, err := io.ReadAll(file)
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require.NoError(t, err)
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expected := []UpstreamIP{
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{
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IPs: []string{
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"10.244.0.63",
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"10.244.0.64",
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},
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IsVirtual: false,
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ClusterNames: map[string]struct{}{
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"passthrough~foo.default.dc1.internal.dc1.consul": {},
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},
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},
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{
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IPs: []string{
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"10.96.5.96",
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"240.0.0.1",
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},
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IsVirtual: true,
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ClusterNames: map[string]struct{}{
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"foo.default.dc1.internal.dc1.consul": {},
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},
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},
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{
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IPs: []string{
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"10.4.6.160",
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"240.0.0.3",
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},
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IsVirtual: true,
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ClusterNames: map[string]struct{}{
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"backend.default.dc1.internal.domain.consul": {},
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"backend2.default.dc1.internal.domain.consul": {},
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},
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},
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}
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var upstreamIPs []UpstreamIP
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cfgDump := &envoy_admin_v3.ConfigDump{}
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unmarshal := &protojson.UnmarshalOptions{
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DiscardUnknown: true,
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}
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err = unmarshal.Unmarshal(jsonBytes, cfgDump)
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require.NoError(t, err)
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for _, cfg := range cfgDump.Configs {
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switch cfg.TypeUrl {
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case listenersType:
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lcd := &envoy_admin_v3.ListenersConfigDump{}
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err := proto.Unmarshal(cfg.GetValue(), lcd)
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require.NoError(t, err)
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for _, listener := range lcd.GetDynamicListeners() {
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l := &envoy_listener_v3.Listener{}
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err = proto.Unmarshal(listener.GetActiveState().GetListener().GetValue(), l)
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require.NoError(t, err)
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upstreamIPs, err = getUpstreamIPsFromFilterChain(l.GetFilterChains(), cfgDump)
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require.NoError(t, err)
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}
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}
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}
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require.NoError(t, err)
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require.Equal(t, expected, upstreamIPs)
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}
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