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Update ingress/terminating wildcard logic and handle destinations

This commit is contained in:
Kyle Havlovitz 2022-08-02 09:41:19 -07:00
parent fce49a1ec0
commit 3f435f31ac
3 changed files with 103 additions and 31 deletions
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4
.changelog/13958.txt Normal file
View File

@ -0,0 +1,4 @@
```release-note:bug
connect: Ingress gateways with a wildcard service entry should no longer pick up non-connect services as upstreams.
connect: Terminating gateways with a wildcard service entry should no longer pick up connect services as upstreams.
```

51
agent/consul/state/catalog.go
View File

@ -890,6 +890,15 @@ func ensureServiceTxn(tx WriteTxn, idx uint64, node string, preserveIndexes bool
return fmt.Errorf("failed updating upstream/downstream association")
}
service := svc.Service
if svc.Kind == structs.ServiceKindConnectProxy {
service = svc.Proxy.DestinationServiceName
}
sn := structs.ServiceName{Name: service, EnterpriseMeta: svc.EnterpriseMeta}
if err = checkGatewayWildcardsAndUpdate(tx, idx, &sn, svc, structs.GatewayServiceKindService); err != nil {
return fmt.Errorf("failed updating gateway mapping: %s", err)
}
supported, err := virtualIPsSupported(tx, nil)
if err != nil {
return err
@ -897,12 +906,6 @@ func ensureServiceTxn(tx WriteTxn, idx uint64, node string, preserveIndexes bool
// Update the virtual IP for the service
if supported {
service := svc.Service
if svc.Kind == structs.ServiceKindConnectProxy {
service = svc.Proxy.DestinationServiceName
}
sn := structs.ServiceName{Name: service, EnterpriseMeta: svc.EnterpriseMeta}
psn := structs.PeeredServiceName{Peer: svc.PeerName, ServiceName: sn}
vip, err := assignServiceVirtualIP(tx, idx, psn)
if err != nil {
@ -3653,7 +3656,7 @@ func updateGatewayNamespace(tx WriteTxn, idx uint64, service *structs.GatewaySer
continue
}
supportsIngress, supportsTerminating, err := serviceConnectInstances(tx, sn.ServiceName, entMeta)
supportsIngress, supportsTerminating, err := serviceHasConnectInstances(tx, sn.ServiceName, entMeta)
if err != nil {
return err
}
@ -3730,15 +3733,15 @@ func updateGatewayNamespace(tx WriteTxn, idx uint64, service *structs.GatewaySer
return nil
}
// serviceConnectInstances returns whether the service has at least one connect instance,
// serviceHasConnectInstances returns whether the service has at least one connect instance,
// and at least one non-connect instance.
func serviceConnectInstances(tx WriteTxn, serviceName string, entMeta *acl.EnterpriseMeta) (bool, bool, error) {
func serviceHasConnectInstances(tx WriteTxn, serviceName string, entMeta *acl.EnterpriseMeta) (bool, bool, error) {
hasConnectInstance := false
connectQuery := Query{
query := Query{
Value: serviceName,
EnterpriseMeta: *entMeta,
}
svc, err := tx.First(tableServices, indexConnect, connectQuery)
svc, err := tx.First(tableServices, indexConnect, query)
if err != nil {
return false, false, fmt.Errorf("failed service lookup: %s", err)
}
@ -3747,11 +3750,7 @@ func serviceConnectInstances(tx WriteTxn, serviceName string, entMeta *acl.Enter
}
hasNonConnectInstance := false
nonConnectQuery := Query{
Value: serviceName,
EnterpriseMeta: *entMeta,
}
iter, err := tx.Get(tableServices, indexService, nonConnectQuery)
iter, err := tx.Get(tableServices, indexService, query)
if err != nil {
return false, false, fmt.Errorf("failed service lookup: %s", err)
}
@ -3810,22 +3809,26 @@ func checkGatewayWildcardsAndUpdate(tx WriteTxn, idx uint64, svc *structs.Servic
return fmt.Errorf("failed gateway lookup for %q: %s", svc.Name, err)
}
supportsIngress, supportsTerminating, err := serviceConnectInstances(tx, svc.Name, &svc.EnterpriseMeta)
hasConnectInstance, hasNonConnectInstance, err := serviceHasConnectInstances(tx, svc.Name, &svc.EnterpriseMeta)
if err != nil {
return err
}
if ns != nil && ns.Connect.Native {
supportsIngress = true
} else {
supportsTerminating = true
// If we were passed a NodeService, this might be the first registered instance of the service
// so we need to count it as either a connect or non-connect instance.
if ns != nil {
if ns.Connect.Native || ns.Kind == structs.ServiceKindConnectProxy {
hasConnectInstance = true
} else {
hasNonConnectInstance = true
}
}
for service := svcGateways.Next(); service != nil; service = svcGateways.Next() {
if wildcardSvc, ok := service.(*structs.GatewayService); ok && wildcardSvc != nil {
if wildcardSvc.GatewayKind == structs.ServiceKindIngressGateway && !supportsIngress {
if wildcardSvc.GatewayKind == structs.ServiceKindIngressGateway && !hasConnectInstance {
continue
}
if wildcardSvc.GatewayKind == structs.ServiceKindTerminatingGateway && !supportsTerminating {
if wildcardSvc.GatewayKind == structs.ServiceKindTerminatingGateway && !hasNonConnectInstance && kind != structs.GatewayServiceKindDestination {
continue
}
@ -3888,7 +3891,7 @@ func cleanupGatewayWildcards(tx WriteTxn, idx uint64, svc *structs.ServiceNode)
// If there are no connect instances left, ingress gateways with a wildcard entry can remove
// their association with it (same with terminating gateways if there are no non-connect
// instances left).
hasConnectInstance, hasNonConnectInstance, err := serviceConnectInstances(tx, svc.ServiceName, &svc.EnterpriseMeta)
hasConnectInstance, hasNonConnectInstance, err := serviceHasConnectInstances(tx, svc.ServiceName, &svc.EnterpriseMeta)
if err != nil {
return err
}

79
agent/consul/state/catalog_test.go
View File

@ -6320,23 +6320,80 @@ func TestStateStore_GatewayServices_WildcardAssociation(t *testing.T) {
})
t.Run("do not associate connect-proxy services with gateway", func(t *testing.T) {
// Should only associate web (the destination service of the proxy), not the
// sidecar service name itself.
testRegisterSidecarProxy(t, s, 19, "node1", "web")
require.False(t, watchFired(ws))
expected := structs.GatewayServices{
{
Gateway: structs.NewServiceName("wildcardIngress", nil),
Service: structs.NewServiceName("service1", nil),
GatewayKind: structs.ServiceKindIngressGateway,
Port: 4444,
Protocol: "http",
FromWildcard: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 12,
ModifyIndex: 12,
},
},
{
Gateway: structs.NewServiceName("wildcardIngress", nil),
Service: structs.NewServiceName("service2", nil),
GatewayKind: structs.ServiceKindIngressGateway,
Port: 4444,
Protocol: "http",
FromWildcard: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 12,
ModifyIndex: 12,
},
},
{
Gateway: structs.NewServiceName("wildcardIngress", nil),
Service: structs.NewServiceName("service3", nil),
GatewayKind: structs.ServiceKindIngressGateway,
Port: 4444,
Protocol: "http",
FromWildcard: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 12,
ModifyIndex: 12,
},
},
{
Gateway: structs.NewServiceName("wildcardIngress", nil),
Service: structs.NewServiceName("web", nil),
ServiceKind: structs.GatewayServiceKindService,
GatewayKind: structs.ServiceKindIngressGateway,
Port: 4444,
Protocol: "http",
FromWildcard: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 19,
ModifyIndex: 19,
},
},
}
idx, results, err := s.GatewayServices(ws, "wildcardIngress", nil)
require.NoError(t, err)
require.Equal(t, uint64(16), idx)
require.Len(t, results, 3)
require.Equal(t, uint64(19), idx)
require.ElementsMatch(t, results, expected)
})
t.Run("do not associate consul services with gateway", func(t *testing.T) {
ws := memdb.NewWatchSet()
_, _, err := s.GatewayServices(ws, "wildcardIngress", nil)
require.NoError(t, err)
require.Nil(t, s.EnsureService(20, "node1",
&structs.NodeService{ID: "consul", Service: "consul", Tags: nil},
))
require.False(t, watchFired(ws))
idx, results, err := s.GatewayServices(ws, "wildcardIngress", nil)
require.NoError(t, err)
require.Equal(t, uint64(16), idx)
require.Len(t, results, 3)
require.Equal(t, uint64(19), idx)
require.Len(t, results, 4)
})
}
@ -6525,7 +6582,7 @@ func setupIngressState(t *testing.T, s *Store) memdb.WatchSet {
testRegisterNode(t, s, 0, "node1")
testRegisterNode(t, s, 1, "node2")
// Register some connect and non-connect services against the nodes.
// Register some connect services against the nodes.
testRegisterIngressService(t, s, 3, "node1", "wildcardIngress")
testRegisterIngressService(t, s, 4, "node1", "ingress1")
testRegisterIngressService(t, s, 5, "node1", "ingress2")
@ -6533,7 +6590,15 @@ func setupIngressState(t *testing.T, s *Store) memdb.WatchSet {
testRegisterIngressService(t, s, 7, "node1", "nothingIngress")
testRegisterConnectService(t, s, 8, "node1", "service1")
testRegisterConnectService(t, s, 9, "node2", "service2")
testRegisterConnectService(t, s, 10, "node2", "service3")
testRegisterService(t, s, 10, "node2", "service3")
testRegisterServiceWithChangeOpts(t, s, 11, "node2", "service3-proxy", false, func(service *structs.NodeService) {
service.Kind = structs.ServiceKindConnectProxy
service.Proxy = structs.ConnectProxyConfig{
DestinationServiceName: "service3",
}
})
// Register some non-connect services - these shouldn't be picked up by a wildcard.
testRegisterService(t, s, 17, "node1", "service4")
testRegisterService(t, s, 18, "node2", "service5")