package fsm import ( "bytes" "testing" "time" "github.com/hashicorp/go-msgpack/codec" "github.com/hashicorp/go-raftchunking" "github.com/stretchr/testify/require" "github.com/hashicorp/consul/acl" "github.com/hashicorp/consul/agent/connect" "github.com/hashicorp/consul/agent/consul/state" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/api" "github.com/hashicorp/consul/lib/stringslice" "github.com/hashicorp/consul/sdk/testutil" ) func TestFSM_SnapshotRestore_OSS(t *testing.T) { t.Parallel() logger := testutil.Logger(t) fsm, err := New(nil, logger) require.NoError(t, err) // Add some state node1 := &structs.Node{ ID: "610918a6-464f-fa9b-1a95-03bd6e88ed92", Node: "foo", Datacenter: "dc1", Address: "127.0.0.1", } node2 := &structs.Node{ ID: "40e4a748-2192-161a-0510-9bf59fe950b5", Node: "baz", Datacenter: "dc1", Address: "127.0.0.2", TaggedAddresses: map[string]string{ "hello": "1.2.3.4", }, Meta: map[string]string{ "testMeta": "testing123", }, } require.NoError(t, fsm.state.EnsureNode(1, node1)) require.NoError(t, fsm.state.EnsureNode(2, node2)) // Add a service instance with Connect config. connectConf := structs.ServiceConnect{ Native: true, } fsm.state.EnsureService(3, "foo", &structs.NodeService{ ID: "web", Service: "web", Tags: nil, Address: "127.0.0.1", Port: 80, Connect: connectConf, }) fsm.state.EnsureService(4, "foo", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"primary"}, Address: "127.0.0.1", Port: 5000}) fsm.state.EnsureService(5, "baz", &structs.NodeService{ID: "web", Service: "web", Tags: nil, Address: "127.0.0.2", Port: 80}) fsm.state.EnsureService(6, "baz", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"secondary"}, Address: "127.0.0.2", Port: 5000}) fsm.state.EnsureCheck(7, &structs.HealthCheck{ Node: "foo", CheckID: "web", Name: "web connectivity", Status: api.HealthPassing, ServiceID: "web", }) fsm.state.KVSSet(8, &structs.DirEntry{ Key: "/test", Value: []byte("foo"), }) session := &structs.Session{ID: generateUUID(), Node: "foo"} fsm.state.SessionCreate(9, session) policy := &structs.ACLPolicy{ ID: structs.ACLPolicyGlobalManagementID, Name: "global-management", Description: "Builtin Policy that grants unlimited access", Rules: structs.ACLPolicyGlobalManagement, Syntax: acl.SyntaxCurrent, } policy.SetHash(true) require.NoError(t, fsm.state.ACLPolicySet(1, policy)) role := &structs.ACLRole{ ID: "86dedd19-8fae-4594-8294-4e6948a81f9a", Name: "some-role", Description: "test snapshot role", ServiceIdentities: []*structs.ACLServiceIdentity{ { ServiceName: "example", }, }, } role.SetHash(true) require.NoError(t, fsm.state.ACLRoleSet(1, role)) token := &structs.ACLToken{ AccessorID: "30fca056-9fbb-4455-b94a-bf0e2bc575d6", SecretID: "cbe1c6fd-d865-4034-9d6d-64fef7fb46a9", Description: "Bootstrap Token (Global Management)", Policies: []structs.ACLTokenPolicyLink{ { ID: structs.ACLPolicyGlobalManagementID, }, }, CreateTime: time.Now(), Local: false, // DEPRECATED (ACL-Legacy-Compat) - This is used so that the bootstrap token is still visible via the v1 acl APIs Type: structs.ACLTokenTypeManagement, } require.NoError(t, fsm.state.ACLBootstrap(10, 0, token, false)) method := &structs.ACLAuthMethod{ Name: "some-method", Type: "testing", Description: "test snapshot auth method", Config: map[string]interface{}{ "SessionID": "952ebfa8-2a42-46f0-bcd3-fd98a842000e", }, } require.NoError(t, fsm.state.ACLAuthMethodSet(1, method)) method = &structs.ACLAuthMethod{ Name: "some-method2", Type: "testing", Description: "test snapshot auth method", } require.NoError(t, fsm.state.ACLAuthMethodSet(1, method)) bindingRule := &structs.ACLBindingRule{ ID: "85184c52-5997-4a84-9817-5945f2632a17", Description: "test snapshot binding rule", AuthMethod: "some-method", Selector: "serviceaccount.namespace==default", BindType: structs.BindingRuleBindTypeService, BindName: "${serviceaccount.name}", } require.NoError(t, fsm.state.ACLBindingRuleSet(1, bindingRule)) fsm.state.KVSSet(11, &structs.DirEntry{ Key: "/remove", Value: []byte("foo"), }) fsm.state.KVSDelete(12, "/remove", nil) idx, _, err := fsm.state.KVSList(nil, "/remove", nil) require.NoError(t, err) require.EqualValues(t, 12, idx, "bad index") updates := structs.Coordinates{ &structs.Coordinate{ Node: "baz", Coord: generateRandomCoordinate(), }, &structs.Coordinate{ Node: "foo", Coord: generateRandomCoordinate(), }, } require.NoError(t, fsm.state.CoordinateBatchUpdate(13, updates)) query := structs.PreparedQuery{ ID: generateUUID(), Service: structs.ServiceQuery{ Service: "web", }, RaftIndex: structs.RaftIndex{ CreateIndex: 14, ModifyIndex: 14, }, } require.NoError(t, fsm.state.PreparedQuerySet(14, &query)) autopilotConf := &structs.AutopilotConfig{ CleanupDeadServers: true, LastContactThreshold: 100 * time.Millisecond, MaxTrailingLogs: 222, } require.NoError(t, fsm.state.AutopilotSetConfig(15, autopilotConf)) // Legacy Intentions ixn := structs.TestIntention(t) ixn.ID = generateUUID() ixn.RaftIndex = structs.RaftIndex{ CreateIndex: 14, ModifyIndex: 14, } //nolint:staticcheck require.NoError(t, fsm.state.LegacyIntentionSet(14, ixn)) // CA Roots roots := []*structs.CARoot{ connect.TestCA(t, nil), connect.TestCA(t, nil), } for _, r := range roots[1:] { r.Active = false } ok, err := fsm.state.CARootSetCAS(15, 0, roots) require.NoError(t, err) require.True(t, ok) ok, err = fsm.state.CASetProviderState(16, &structs.CAConsulProviderState{ ID: "asdf", PrivateKey: "foo", RootCert: "bar", }) require.NoError(t, err) require.True(t, ok) // CA Config caConfig := &structs.CAConfiguration{ ClusterID: "foo", Provider: "consul", Config: map[string]interface{}{ "foo": "asdf", "bar": 6.5, }, } err = fsm.state.CASetConfig(17, caConfig) require.NoError(t, err) // Config entries serviceConfig := &structs.ServiceConfigEntry{ Kind: structs.ServiceDefaults, Name: "foo", Protocol: "http", } proxyConfig := &structs.ProxyConfigEntry{ Kind: structs.ProxyDefaults, Name: "global", } require.NoError(t, fsm.state.EnsureConfigEntry(18, serviceConfig)) require.NoError(t, fsm.state.EnsureConfigEntry(19, proxyConfig)) ingress := &structs.IngressGatewayConfigEntry{ Kind: structs.IngressGateway, Name: "ingress", Listeners: []structs.IngressListener{ { Port: 8080, Protocol: "http", Services: []structs.IngressService{ { Name: "foo", }, }, }, }, } require.NoError(t, fsm.state.EnsureConfigEntry(20, ingress)) _, gatewayServices, err := fsm.state.GatewayServices(nil, "ingress", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) // Raft Chunking chunkState := &raftchunking.State{ ChunkMap: make(raftchunking.ChunkMap), } chunkState.ChunkMap[0] = []*raftchunking.ChunkInfo{ { OpNum: 0, SequenceNum: 0, NumChunks: 3, Data: []byte("foo"), }, nil, { OpNum: 0, SequenceNum: 2, NumChunks: 3, Data: []byte("bar"), }, } chunkState.ChunkMap[20] = []*raftchunking.ChunkInfo{ nil, { OpNum: 20, SequenceNum: 1, NumChunks: 2, Data: []byte("bar"), }, } err = fsm.chunker.RestoreState(chunkState) require.NoError(t, err) // Federation states fedState1 := &structs.FederationState{ Datacenter: "dc1", MeshGateways: []structs.CheckServiceNode{ { Node: &structs.Node{ ID: "664bac9f-4de7-4f1b-ad35-0e5365e8f329", Node: "gateway1", Datacenter: "dc1", Address: "1.2.3.4", }, Service: &structs.NodeService{ ID: "mesh-gateway", Service: "mesh-gateway", Kind: structs.ServiceKindMeshGateway, Port: 1111, Meta: map[string]string{structs.MetaWANFederationKey: "1"}, }, Checks: []*structs.HealthCheck{ { Name: "web connectivity", Status: api.HealthPassing, ServiceID: "mesh-gateway", }, }, }, { Node: &structs.Node{ ID: "3fb9a696-8209-4eee-a1f7-48600deb9716", Node: "gateway2", Datacenter: "dc1", Address: "9.8.7.6", }, Service: &structs.NodeService{ ID: "mesh-gateway", Service: "mesh-gateway", Kind: structs.ServiceKindMeshGateway, Port: 2222, Meta: map[string]string{structs.MetaWANFederationKey: "1"}, }, Checks: []*structs.HealthCheck{ { Name: "web connectivity", Status: api.HealthPassing, ServiceID: "mesh-gateway", }, }, }, }, UpdatedAt: time.Now().UTC(), } fedState2 := &structs.FederationState{ Datacenter: "dc2", MeshGateways: []structs.CheckServiceNode{ { Node: &structs.Node{ ID: "0f92b02e-9f51-4aa2-861b-4ddbc3492724", Node: "gateway1", Datacenter: "dc2", Address: "8.8.8.8", }, Service: &structs.NodeService{ ID: "mesh-gateway", Service: "mesh-gateway", Kind: structs.ServiceKindMeshGateway, Port: 3333, Meta: map[string]string{structs.MetaWANFederationKey: "1"}, }, Checks: []*structs.HealthCheck{ { Name: "web connectivity", Status: api.HealthPassing, ServiceID: "mesh-gateway", }, }, }, { Node: &structs.Node{ ID: "99a76121-1c3f-4023-88ef-805248beb10b", Node: "gateway2", Datacenter: "dc2", Address: "5.5.5.5", }, Service: &structs.NodeService{ ID: "mesh-gateway", Service: "mesh-gateway", Kind: structs.ServiceKindMeshGateway, Port: 4444, Meta: map[string]string{structs.MetaWANFederationKey: "1"}, }, Checks: []*structs.HealthCheck{ { Name: "web connectivity", Status: api.HealthPassing, ServiceID: "mesh-gateway", }, }, }, }, UpdatedAt: time.Now().UTC(), } require.NoError(t, fsm.state.FederationStateSet(21, fedState1)) require.NoError(t, fsm.state.FederationStateSet(22, fedState2)) // Update a node, service and health check to make sure the ModifyIndexes are preserved correctly after restore. require.NoError(t, fsm.state.EnsureNode(23, &structs.Node{ ID: "610918a6-464f-fa9b-1a95-03bd6e88ed92", Node: "foo", Datacenter: "dc1", Address: "127.0.0.3", })) require.NoError(t, fsm.state.EnsureService(24, "foo", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"primary"}, Address: "127.0.0.1", Port: 5001})) require.NoError(t, fsm.state.EnsureCheck(25, &structs.HealthCheck{ Node: "foo", CheckID: "web", Name: "web connectivity", Status: api.HealthCritical, ServiceID: "web", })) // system metadata systemMetadataEntry := &structs.SystemMetadataEntry{ Key: "key1", Value: "val1", } require.NoError(t, fsm.state.SystemMetadataSet(25, systemMetadataEntry)) // service-intentions serviceIxn := &structs.ServiceIntentionsConfigEntry{ Kind: structs.ServiceIntentions, Name: "foo", Sources: []*structs.SourceIntention{ { Name: "bar", Action: structs.IntentionActionAllow, }, }, } require.NoError(t, fsm.state.EnsureConfigEntry(26, serviceIxn)) // mesh config entry meshConfig := &structs.MeshConfigEntry{ TransparentProxy: structs.TransparentProxyMeshConfig{ MeshDestinationsOnly: true, }, } require.NoError(t, fsm.state.EnsureConfigEntry(27, meshConfig)) // Snapshot snap, err := fsm.Snapshot() require.NoError(t, err) defer snap.Release() // Persist buf := bytes.NewBuffer(nil) sink := &MockSink{buf, false} require.NoError(t, snap.Persist(sink)) // create an encoder to handle some custom persisted data // this is mainly to inject data that would no longer ever // be persisted but that we still need to be able to restore encoder := codec.NewEncoder(sink, structs.MsgpackHandle) // Persist a legacy ACL token - this is not done in newer code // but we want to ensure that restoring legacy tokens works as // expected so we must inject one here manually _, err = sink.Write([]byte{byte(structs.ACLRequestType)}) require.NoError(t, err) acl := structs.ACL{ ID: "1057354f-69ef-4487-94ab-aead3c755445", Name: "test-legacy", Type: "client", Rules: `operator = "read"`, RaftIndex: structs.RaftIndex{CreateIndex: 1, ModifyIndex: 2}, } require.NoError(t, encoder.Encode(&acl)) // Persist a ACLToken without a Hash - the state store will // now tack these on but we want to ensure we can restore // tokens without a hash and have the hash be set. token2 := &structs.ACLToken{ AccessorID: "4464e4c2-1c55-4c37-978a-66cb3abe6587", SecretID: "fc8708dc-c5ae-4bb2-a9af-a1ca456548fb", Description: "Test No Hash", CreateTime: time.Now(), Local: false, Rules: `operator = "read"`, RaftIndex: structs.RaftIndex{CreateIndex: 1, ModifyIndex: 2}, } _, err = sink.Write([]byte{byte(structs.ACLTokenSetRequestType)}) require.NoError(t, err) require.NoError(t, encoder.Encode(&token2)) // Try to restore on a new FSM fsm2, err := New(nil, logger) require.NoError(t, err) // Do a restore require.NoError(t, fsm2.Restore(sink)) // Verify the contents _, nodes, err := fsm2.state.Nodes(nil, nil) require.NoError(t, err) require.Len(t, nodes, 2, "incorect number of nodes: %v", nodes) // validate the first node. Note that this test relies on stable // iteration through the memdb index and the fact that node2 has // a name of "baz" so it should be indexed before node1 with a // name of "foo". If memdb our our indexing changes this is likely // to break. require.Equal(t, node2.ID, nodes[0].ID) require.Equal(t, "baz", nodes[0].Node) require.Equal(t, "dc1", nodes[0].Datacenter) require.Equal(t, "127.0.0.2", nodes[0].Address) require.Len(t, nodes[0].Meta, 1) require.Equal(t, "testing123", nodes[0].Meta["testMeta"]) require.Len(t, nodes[0].TaggedAddresses, 1) require.Equal(t, "1.2.3.4", nodes[0].TaggedAddresses["hello"]) require.Equal(t, uint64(2), nodes[0].CreateIndex) require.Equal(t, uint64(2), nodes[0].ModifyIndex) require.Equal(t, node1.ID, nodes[1].ID) require.Equal(t, "foo", nodes[1].Node) require.Equal(t, "dc1", nodes[1].Datacenter) require.Equal(t, "127.0.0.3", nodes[1].Address) require.Empty(t, nodes[1].TaggedAddresses) require.Equal(t, uint64(1), nodes[1].CreateIndex) require.Equal(t, uint64(23), nodes[1].ModifyIndex) _, fooSrv, err := fsm2.state.NodeServices(nil, "foo", nil) require.NoError(t, err) require.Len(t, fooSrv.Services, 2) require.Contains(t, fooSrv.Services["db"].Tags, "primary") require.True(t, stringslice.Contains(fooSrv.Services["db"].Tags, "primary")) require.Equal(t, 5001, fooSrv.Services["db"].Port) require.Equal(t, uint64(4), fooSrv.Services["db"].CreateIndex) require.Equal(t, uint64(24), fooSrv.Services["db"].ModifyIndex) connectSrv := fooSrv.Services["web"] require.Equal(t, connectConf, connectSrv.Connect) require.Equal(t, uint64(3), fooSrv.Services["web"].CreateIndex) require.Equal(t, uint64(3), fooSrv.Services["web"].ModifyIndex) _, checks, err := fsm2.state.NodeChecks(nil, "foo", nil) require.NoError(t, err) require.Len(t, checks, 1) require.Equal(t, "foo", checks[0].Node) require.Equal(t, "web", checks[0].ServiceName) require.Equal(t, uint64(7), checks[0].CreateIndex) require.Equal(t, uint64(25), checks[0].ModifyIndex) // Verify key is set _, d, err := fsm2.state.KVSGet(nil, "/test", nil) require.NoError(t, err) require.EqualValues(t, "foo", d.Value) // Verify session is restored idx, s, err := fsm2.state.SessionGet(nil, session.ID, nil) require.NoError(t, err) require.Equal(t, "foo", s.Node) require.EqualValues(t, 9, idx) // Verify ACL Binding Rule is restored _, bindingRule2, err := fsm2.state.ACLBindingRuleGetByID(nil, bindingRule.ID, nil) require.NoError(t, err) require.Equal(t, bindingRule, bindingRule2) // Verify ACL Auth Methods are restored _, authMethods, err := fsm2.state.ACLAuthMethodList(nil, nil) require.NoError(t, err) require.Len(t, authMethods, 2) require.Equal(t, "some-method", authMethods[0].Name) require.Equal(t, "some-method2", authMethods[1].Name) // Verify ACL Token is restored _, rtoken, err := fsm2.state.ACLTokenGetByAccessor(nil, token.AccessorID, nil) require.NoError(t, err) require.NotNil(t, rtoken) // the state store function will add on the Hash if its empty require.NotEmpty(t, rtoken.Hash) token.CreateTime = token.CreateTime.Round(0) rtoken.CreateTime = rtoken.CreateTime.Round(0) // note that this can work because the state store will add the Hash to the token before // storing. That token just happens to be a pointer to the one in this function so it // adds the Hash to our local var. require.Equal(t, token, rtoken) // Verify legacy ACL is restored _, rtoken, err = fsm2.state.ACLTokenGetBySecret(nil, acl.ID, nil) require.NoError(t, err) require.NotNil(t, rtoken) require.NotEmpty(t, rtoken.Hash) restoredACL, err := rtoken.Convert() require.NoError(t, err) require.Equal(t, &acl, restoredACL) // Verify ACLToken without hash computes the Hash during restoration _, rtoken, err = fsm2.state.ACLTokenGetByAccessor(nil, token2.AccessorID, nil) require.NoError(t, err) require.NotNil(t, rtoken) require.NotEmpty(t, rtoken.Hash) // nil the Hash so we can compare them rtoken.Hash = nil token2.CreateTime = token2.CreateTime.Round(0) rtoken.CreateTime = rtoken.CreateTime.Round(0) require.Equal(t, token2, rtoken) // Verify the acl-token-bootstrap index was restored canBootstrap, index, err := fsm2.state.CanBootstrapACLToken() require.NoError(t, err) require.False(t, canBootstrap) require.True(t, index > 0) // Verify ACL Role is restored _, role2, err := fsm2.state.ACLRoleGetByID(nil, role.ID, nil) require.NoError(t, err) require.Equal(t, role, role2) // Verify ACL Policy is restored _, policy2, err := fsm2.state.ACLPolicyGetByID(nil, structs.ACLPolicyGlobalManagementID, nil) require.NoError(t, err) require.Equal(t, policy, policy2) // Verify tombstones are restored func() { snap := fsm2.state.Snapshot() defer snap.Close() stones, err := snap.Tombstones() require.NoError(t, err) stone := stones.Next().(*state.Tombstone) require.NotNil(t, stone) require.Equal(t, "/remove", stone.Key) require.Nil(t, stones.Next()) }() // Verify coordinates are restored _, coords, err := fsm2.state.Coordinates(nil, nil) require.NoError(t, err) require.Equal(t, updates, coords) // Verify queries are restored. _, queries, err := fsm2.state.PreparedQueryList(nil) require.NoError(t, err) require.Len(t, queries, 1) require.Equal(t, &query, queries[0]) // Verify autopilot config is restored. _, restoredConf, err := fsm2.state.AutopilotConfig() require.NoError(t, err) require.Equal(t, autopilotConf, restoredConf) // Verify legacy intentions are restored. _, ixns, err := fsm2.state.LegacyIntentions(nil, structs.WildcardEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Len(t, ixns, 1) require.Equal(t, ixn, ixns[0]) // Verify CA roots are restored. _, roots, err = fsm2.state.CARoots(nil) require.NoError(t, err) require.Len(t, roots, 2) // Verify provider state is restored. _, state, err := fsm2.state.CAProviderState("asdf") require.NoError(t, err) require.Equal(t, "foo", state.PrivateKey) require.Equal(t, "bar", state.RootCert) // Verify CA configuration is restored. _, caConf, err := fsm2.state.CAConfig(nil) require.NoError(t, err) require.Equal(t, caConfig, caConf) // Verify config entries are restored _, serviceConfEntry, err := fsm2.state.ConfigEntry(nil, structs.ServiceDefaults, "foo", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, serviceConfig, serviceConfEntry) _, proxyConfEntry, err := fsm2.state.ConfigEntry(nil, structs.ProxyDefaults, "global", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, proxyConfig, proxyConfEntry) _, ingressRestored, err := fsm2.state.ConfigEntry(nil, structs.IngressGateway, "ingress", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, ingress, ingressRestored) _, restoredGatewayServices, err := fsm2.state.GatewayServices(nil, "ingress", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, gatewayServices, restoredGatewayServices) newChunkState, err := fsm2.chunker.CurrentState() require.NoError(t, err) require.Equal(t, newChunkState, chunkState) // Verify federation states are restored. _, fedStateLoaded1, err := fsm2.state.FederationStateGet(nil, "dc1") require.NoError(t, err) require.Equal(t, fedState1, fedStateLoaded1) _, fedStateLoaded2, err := fsm2.state.FederationStateGet(nil, "dc2") require.NoError(t, err) require.Equal(t, fedState2, fedStateLoaded2) // Verify usage data is correctly updated idx, nodeUsage, err := fsm2.state.NodeUsage() require.NoError(t, err) require.Equal(t, len(nodes), nodeUsage.Nodes) require.NotZero(t, idx) // Verify system metadata is restored. _, systemMetadataLoaded, err := fsm2.state.SystemMetadataList(nil) require.NoError(t, err) require.Len(t, systemMetadataLoaded, 1) require.Equal(t, systemMetadataEntry, systemMetadataLoaded[0]) // Verify service-intentions is restored _, serviceIxnEntry, err := fsm2.state.ConfigEntry(nil, structs.ServiceIntentions, "foo", structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, serviceIxn, serviceIxnEntry) // Verify mesh config entry is restored _, meshConfigEntry, err := fsm2.state.ConfigEntry(nil, structs.MeshConfig, structs.MeshConfigMesh, structs.DefaultEnterpriseMetaInDefaultPartition()) require.NoError(t, err) require.Equal(t, meshConfig, meshConfigEntry) // Snapshot snap, err = fsm2.Snapshot() require.NoError(t, err) defer snap.Release() // Persist buf = bytes.NewBuffer(nil) sink = &MockSink{buf, false} require.NoError(t, snap.Persist(sink)) // Try to restore on the old FSM and make sure it abandons the old state // store. abandonCh := fsm.state.AbandonCh() require.NoError(t, fsm.Restore(sink)) select { case <-abandonCh: default: require.Fail(t, "Old state not abandoned") } } func TestFSM_BadRestore_OSS(t *testing.T) { t.Parallel() // Create an FSM with some state. logger := testutil.Logger(t) fsm, err := New(nil, logger) require.NoError(t, err) fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"}) abandonCh := fsm.state.AbandonCh() // Do a bad restore. buf := bytes.NewBuffer([]byte("bad snapshot")) sink := &MockSink{buf, false} require.Error(t, fsm.Restore(sink)) // Verify the contents didn't get corrupted. _, nodes, err := fsm.state.Nodes(nil, nil) require.NoError(t, err) require.Len(t, nodes, 1) require.Equal(t, "foo", nodes[0].Node) require.Equal(t, "127.0.0.1", nodes[0].Address) require.Empty(t, nodes[0].TaggedAddresses) // Verify the old state store didn't get abandoned. select { case <-abandonCh: require.FailNow(t, "FSM state was abandoned when it should not have been") default: } } func TestFSM_BadSnapshot_NilCAConfig(t *testing.T) { t.Parallel() // Create an FSM with no config entry. logger := testutil.Logger(t) fsm, err := New(nil, logger) require.NoError(t, err) // Snapshot snap, err := fsm.Snapshot() require.NoError(t, err) defer snap.Release() // Persist buf := bytes.NewBuffer(nil) sink := &MockSink{buf, false} require.NoError(t, snap.Persist(sink)) // Try to restore on a new FSM fsm2, err := New(nil, logger) require.NoError(t, err) // Do a restore require.NoError(t, fsm2.Restore(sink)) // Make sure there's no entry in the CA config table. state := fsm2.State() idx, config, err := state.CAConfig(nil) require.NoError(t, err) require.EqualValues(t, 0, idx) require.Nil(t, config) }