mirror of https://github.com/hashicorp/consul
467 lines
12 KiB
Go
467 lines
12 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: BUSL-1.1
|
|
|
|
package peering
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/hashicorp/consul/testing/deployer/topology"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/hashicorp/consul/test/integration/consul-container/libs/utils"
|
|
)
|
|
|
|
type ac6FailoversSuite struct {
|
|
// inputs
|
|
// with all false, this gives us a scenario with:
|
|
// - a "near" server in the accepter cluster (DC1), partitition default, namespace default
|
|
// - a "far" server in the dialer cluster (DC2), partition default, namespace default
|
|
// - a client in the accepter cluster (DC1), partition default, namespace default, with:
|
|
// - upstream near server (DC1)
|
|
// - failover to far server (DC2)
|
|
//
|
|
// TODO: technically if NearInDial && !FarInAcc (i.e., near == far), then we're not doing peering at all,
|
|
// and could do this test in a single DC
|
|
|
|
// when true, put the client (and its default upstream server) in the dialer peer; otherwise, put client in accepter
|
|
NearInDial bool
|
|
// when true, put the client (and its default upstream server) in the nondefault partition/namespace; otherwise in the default
|
|
NearInPartAlt bool
|
|
NearInNSAlt bool
|
|
// when true, put far server to the accepter peer; otherwise the dialer
|
|
FarInAcc bool
|
|
// when true, put far server to nondefault partition/namespace (ENT-only); otherwise, failover to default
|
|
FarInPartAlt bool
|
|
FarInNSAlt bool
|
|
|
|
// launch outputs, for querying during test
|
|
clientSID topology.ServiceID
|
|
// near = same DC as client; far = other DC
|
|
nearServerSID topology.ServiceID
|
|
// used to remove the node and trigger failover
|
|
nearServerNode topology.NodeID
|
|
farServerSID topology.ServiceID
|
|
farServerNode topology.NodeID
|
|
}
|
|
|
|
// Note: this test cannot share topo
|
|
func TestAC6Failovers(t *testing.T) {
|
|
// bit banging to get all permutations of all params
|
|
const nParams = 3
|
|
// i.e 2**nParams
|
|
const n = int(1) << nParams
|
|
for i := 0; i < n; i++ {
|
|
s := ac6FailoversSuite{
|
|
// xth bit == 1
|
|
NearInDial: (i>>0)&1 == 1,
|
|
NearInPartAlt: (i>>1)&1 == 1,
|
|
FarInPartAlt: (i>>2)&1 == 1,
|
|
}
|
|
// ensure the servers are always in separate DCs
|
|
s.FarInAcc = s.NearInDial
|
|
t.Run(fmt.Sprintf("%02d_%s", i, s.testName()), func(t *testing.T) {
|
|
t.Parallel()
|
|
ct := NewCommonTopo(t)
|
|
s.setup(t, ct)
|
|
ct.Launch(t)
|
|
s.test(t, ct)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestNET5029Failovers(t *testing.T) {
|
|
// TODO: *.{a,b} are not actually peering tests, and should technically be moved elsewhere
|
|
suites := map[string]ac6FailoversSuite{
|
|
"1.a": {
|
|
FarInAcc: true,
|
|
FarInPartAlt: true,
|
|
},
|
|
"1.b": {
|
|
FarInAcc: true,
|
|
FarInNSAlt: true,
|
|
},
|
|
"1.c": {
|
|
FarInNSAlt: true,
|
|
},
|
|
"1.d": {
|
|
FarInPartAlt: true,
|
|
},
|
|
"2.a": {
|
|
FarInAcc: true,
|
|
NearInPartAlt: true,
|
|
},
|
|
"2.b": {
|
|
FarInAcc: true,
|
|
NearInNSAlt: true,
|
|
},
|
|
"2.c": {
|
|
NearInDial: true,
|
|
NearInNSAlt: true,
|
|
FarInAcc: true,
|
|
},
|
|
"2.d": {
|
|
NearInDial: true,
|
|
NearInPartAlt: true,
|
|
FarInAcc: true,
|
|
},
|
|
}
|
|
for name, s := range suites {
|
|
s := s
|
|
t.Run(fmt.Sprintf("%s_%s", name, s.testName()), func(t *testing.T) {
|
|
if name == "1.b" {
|
|
t.Skip("TODO: fails with 503/504")
|
|
}
|
|
t.Parallel()
|
|
ct := NewCommonTopo(t)
|
|
s.setup(t, ct)
|
|
ct.Launch(t)
|
|
s.test(t, ct)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAC6Failovers_AllPermutations(t *testing.T) {
|
|
//
|
|
t.Skip("Too many permutations")
|
|
// bit banging to get all permutations of all params
|
|
const nParams = 6
|
|
// i.e 2**nParams
|
|
const n = int(1) << nParams
|
|
for i := 0; i < n; i++ {
|
|
s := ac6FailoversSuite{
|
|
// xth bit == 1
|
|
NearInDial: (i>>0)&1 == 1,
|
|
FarInAcc: (i>>1)&1 == 1,
|
|
NearInPartAlt: (i>>2)&1 == 1,
|
|
FarInPartAlt: (i>>3)&1 == 1,
|
|
NearInNSAlt: (i>>4)&1 == 1,
|
|
FarInNSAlt: (i>>5)&1 == 1,
|
|
}
|
|
t.Run(fmt.Sprintf("%02d_%s", i, s.testName()), func(t *testing.T) {
|
|
t.Parallel()
|
|
ct := NewCommonTopo(t)
|
|
s.setup(t, ct)
|
|
ct.Launch(t)
|
|
s.test(t, ct)
|
|
})
|
|
}
|
|
}
|
|
|
|
func (s *ac6FailoversSuite) testName() (ret string) {
|
|
switch s.NearInDial {
|
|
case true:
|
|
ret += "dial"
|
|
default:
|
|
ret += "acc"
|
|
}
|
|
ret += "."
|
|
switch s.NearInPartAlt {
|
|
case true:
|
|
ret += "alt"
|
|
default:
|
|
ret += "default"
|
|
}
|
|
ret += "."
|
|
switch s.NearInNSAlt {
|
|
case true:
|
|
ret += "alt"
|
|
default:
|
|
ret += "default"
|
|
}
|
|
|
|
ret += "->"
|
|
|
|
switch s.FarInAcc {
|
|
case true:
|
|
ret += "acc"
|
|
default:
|
|
ret += "dial"
|
|
}
|
|
ret += "."
|
|
switch s.FarInPartAlt {
|
|
case true:
|
|
ret += "alt"
|
|
default:
|
|
ret += "default"
|
|
}
|
|
ret += "."
|
|
switch s.FarInNSAlt {
|
|
case true:
|
|
ret += "alt"
|
|
default:
|
|
ret += "default"
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (s *ac6FailoversSuite) setup(t *testing.T, ct *commonTopo) {
|
|
if !utils.IsEnterprise() && (s.NearInPartAlt || s.FarInPartAlt) {
|
|
t.Skip("ENT required for nondefault partitions")
|
|
}
|
|
|
|
nearClu := ct.DC1
|
|
farClu := ct.DC2
|
|
if s.NearInDial {
|
|
nearClu = ct.DC2
|
|
}
|
|
if s.FarInAcc {
|
|
farClu = ct.DC1
|
|
}
|
|
|
|
// - server in clientPartition/DC (main target)
|
|
nearServerSID := topology.ServiceID{
|
|
Name: "ac6-server",
|
|
Partition: ConfigEntryPartition("default"),
|
|
Namespace: "default",
|
|
}
|
|
if s.NearInPartAlt {
|
|
nearServerSID.Partition = "part1"
|
|
}
|
|
if s.NearInNSAlt {
|
|
nearServerSID.Namespace = "ns1"
|
|
}
|
|
nearServer := NewFortioServiceWithDefaults(
|
|
nearClu.Datacenter,
|
|
nearServerSID,
|
|
nil,
|
|
)
|
|
nearServerNode := ct.AddServiceNode(nearClu, serviceExt{Service: nearServer})
|
|
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
&api.ServiceConfigEntry{
|
|
Kind: api.ServiceDefaults,
|
|
Name: nearServerSID.Name,
|
|
Partition: ConfigEntryPartition(nearServerSID.Partition),
|
|
Namespace: nearServerSID.Namespace,
|
|
Protocol: "http",
|
|
},
|
|
)
|
|
// - server in otherPartition/otherDC
|
|
farServerSID := topology.ServiceID{
|
|
Name: nearServerSID.Name,
|
|
Partition: "default",
|
|
Namespace: "default",
|
|
}
|
|
if s.FarInPartAlt {
|
|
farServerSID.Partition = "part1"
|
|
}
|
|
if s.FarInNSAlt {
|
|
farServerSID.Namespace = "ns1"
|
|
}
|
|
farServer := NewFortioServiceWithDefaults(
|
|
farClu.Datacenter,
|
|
farServerSID,
|
|
nil,
|
|
)
|
|
farServerNode := ct.AddServiceNode(farClu, serviceExt{Service: farServer})
|
|
if nearClu != farClu {
|
|
ct.ExportService(farClu, farServerSID.Partition,
|
|
api.ExportedService{
|
|
Name: farServerSID.Name,
|
|
Namespace: farServerSID.Namespace,
|
|
Consumers: []api.ServiceConsumer{
|
|
{
|
|
Peer: LocalPeerName(nearClu, nearServerSID.Partition),
|
|
},
|
|
},
|
|
},
|
|
)
|
|
} else if nearClu == farClu && farServerSID.Partition != nearServerSID.Partition {
|
|
ct.ExportService(farClu, farServerSID.Partition,
|
|
api.ExportedService{
|
|
Name: farServerSID.Name,
|
|
Namespace: farServerSID.Namespace,
|
|
Consumers: []api.ServiceConsumer{
|
|
{
|
|
// this must not be "", or else it is basically ignored altogether
|
|
// TODO: bug? if this whole struct is empty, that should be an error
|
|
Partition: topology.PartitionOrDefault(nearServerSID.Partition),
|
|
},
|
|
},
|
|
},
|
|
)
|
|
}
|
|
|
|
var targets []api.ServiceResolverFailoverTarget
|
|
if nearClu != farClu {
|
|
targets = []api.ServiceResolverFailoverTarget{
|
|
{
|
|
Service: farServerSID.Name,
|
|
Peer: LocalPeerName(farClu, farServerSID.Partition),
|
|
Namespace: farServerSID.Namespace,
|
|
},
|
|
}
|
|
} else {
|
|
part := ConfigEntryPartition(farServerSID.Partition)
|
|
// weird exception here where target partition set to "" means "inherit from parent"
|
|
// TODO: bug? docs say "" -> default:
|
|
// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-resolver#failover-targets-partition
|
|
if farServerSID.Partition == "default" && nearServerSID.Partition != "default" {
|
|
part = "default"
|
|
}
|
|
targets = []api.ServiceResolverFailoverTarget{
|
|
{
|
|
Service: farServerSID.Name,
|
|
Partition: part,
|
|
Namespace: farServerSID.Namespace,
|
|
},
|
|
}
|
|
}
|
|
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
&api.ServiceConfigEntry{
|
|
Kind: api.ServiceDefaults,
|
|
Name: farServerSID.Name,
|
|
Partition: ConfigEntryPartition(farServerSID.Partition),
|
|
Namespace: farServerSID.Namespace,
|
|
Protocol: "http",
|
|
},
|
|
&api.ServiceResolverConfigEntry{
|
|
Kind: api.ServiceResolver,
|
|
Name: nearServerSID.Name,
|
|
Partition: ConfigEntryPartition(nearServerSID.Partition),
|
|
Namespace: nearServerSID.Namespace,
|
|
Failover: map[string]api.ServiceResolverFailover{
|
|
"*": {
|
|
Targets: targets,
|
|
},
|
|
},
|
|
},
|
|
)
|
|
|
|
clientSID := topology.ServiceID{
|
|
Name: "ac6-client",
|
|
Partition: nearServerSID.Partition,
|
|
Namespace: nearServerSID.Namespace,
|
|
}
|
|
client := NewFortioServiceWithDefaults(
|
|
nearClu.Datacenter,
|
|
clientSID,
|
|
func(s *topology.Service) {
|
|
// Upstream per partition
|
|
s.Upstreams = []*topology.Upstream{
|
|
{
|
|
ID: topology.ServiceID{
|
|
Name: nearServerSID.Name,
|
|
Partition: nearServerSID.Partition,
|
|
Namespace: nearServerSID.Namespace,
|
|
},
|
|
LocalPort: 5000,
|
|
// exposed so we can hit it directly
|
|
// TODO: we shouldn't do this; it's not realistic
|
|
LocalAddress: "0.0.0.0",
|
|
},
|
|
}
|
|
},
|
|
)
|
|
ct.AddServiceNode(nearClu, serviceExt{Service: client})
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
&api.ServiceConfigEntry{
|
|
Kind: api.ServiceDefaults,
|
|
Name: clientSID.Name,
|
|
Partition: ConfigEntryPartition(clientSID.Partition),
|
|
Namespace: clientSID.Namespace,
|
|
Protocol: "http",
|
|
},
|
|
)
|
|
|
|
// intentions
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
&api.ServiceIntentionsConfigEntry{
|
|
Kind: api.ServiceIntentions,
|
|
Name: nearServerSID.Name,
|
|
Partition: ConfigEntryPartition(nearServerSID.Partition),
|
|
Namespace: nearServerSID.Namespace,
|
|
Sources: []*api.SourceIntention{{
|
|
Name: clientSID.Name,
|
|
Namespace: clientSID.Namespace,
|
|
// in this field, "" -> destination partition, so no ConfigEntryPartition :eyeroll:
|
|
// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-intentions#sources-partition
|
|
Partition: topology.PartitionOrDefault(clientSID.Partition),
|
|
Action: api.IntentionActionAllow,
|
|
}},
|
|
},
|
|
)
|
|
farSource := api.SourceIntention{
|
|
Name: clientSID.Name,
|
|
Namespace: clientSID.Namespace,
|
|
Peer: LocalPeerName(nearClu, clientSID.Partition),
|
|
Action: api.IntentionActionAllow,
|
|
}
|
|
if nearClu == farClu {
|
|
farSource.Peer = ""
|
|
// in this field, "" -> destination partition, so no ConfigEntryPartition :eyeroll:
|
|
// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-intentions#sources-partition
|
|
farSource.Partition = topology.PartitionOrDefault(clientSID.Partition)
|
|
}
|
|
farClu.InitialConfigEntries = append(farClu.InitialConfigEntries,
|
|
&api.ServiceIntentionsConfigEntry{
|
|
Kind: api.ServiceIntentions,
|
|
Name: farServerSID.Name,
|
|
Partition: ConfigEntryPartition(farServerSID.Partition),
|
|
Namespace: farServerSID.Namespace,
|
|
Sources: []*api.SourceIntention{&farSource},
|
|
},
|
|
)
|
|
|
|
s.clientSID = clientSID
|
|
s.nearServerSID = nearServerSID
|
|
s.farServerSID = farServerSID
|
|
s.nearServerNode = nearServerNode.ID()
|
|
s.farServerNode = farServerNode.ID()
|
|
}
|
|
|
|
func (s *ac6FailoversSuite) test(t *testing.T, ct *commonTopo) {
|
|
// NOTE: *not parallel* because we mutate resources that are shared
|
|
// between test cases (disable/enable nodes)
|
|
|
|
nearClu := ct.Sprawl.Topology().Clusters["dc1"]
|
|
farClu := ct.Sprawl.Topology().Clusters["dc2"]
|
|
if s.NearInDial {
|
|
nearClu = ct.Sprawl.Topology().Clusters["dc2"]
|
|
}
|
|
if s.FarInAcc {
|
|
farClu = ct.Sprawl.Topology().Clusters["dc1"]
|
|
}
|
|
|
|
svcs := nearClu.ServicesByID(s.clientSID)
|
|
require.Len(t, svcs, 1, "expected exactly one client in datacenter")
|
|
|
|
client := svcs[0]
|
|
require.Len(t, client.Upstreams, 1, "expected one upstream for client")
|
|
upstream := client.Upstreams[0]
|
|
|
|
fmt.Println("### preconditions")
|
|
|
|
// this is the server in the same DC and partitions as client
|
|
serverSID := s.nearServerSID
|
|
serverSID.Normalize()
|
|
ct.Assert.FortioFetch2FortioName(t, client, upstream, nearClu.Name, serverSID)
|
|
|
|
ct.Assert.CatalogServiceExists(t, nearClu.Name, upstream.ID.Name, utils.CompatQueryOpts(&api.QueryOptions{
|
|
Partition: upstream.ID.Partition,
|
|
Namespace: upstream.ID.Namespace,
|
|
}))
|
|
|
|
if t.Failed() {
|
|
t.Fatal("failed preconditions")
|
|
}
|
|
|
|
fmt.Println("### failover")
|
|
|
|
cfg := ct.Sprawl.Config()
|
|
DisableNode(t, cfg, nearClu.Name, s.nearServerNode)
|
|
require.NoError(t, ct.Sprawl.RelaunchWithPhase(cfg, "failover"))
|
|
// Clusters for imported services rely on outlier detection for
|
|
// failovers, NOT eds_health_status. This means that killing the
|
|
// node above does not actually make the envoy cluster UNHEALTHY
|
|
// so we do not assert for it.
|
|
expectSID := s.farServerSID
|
|
expectSID.Normalize()
|
|
ct.Assert.FortioFetch2FortioName(t, client, upstream, farClu.Name, expectSID)
|
|
}
|