subscribe: add integration test for acl token updates
This commit is contained in:
Daniel Nephin
parent
3deccdde56
commit
4c4441997a
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@ -5,9 +5,10 @@ import (
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"fmt"
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"time"
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memdb "github.com/hashicorp/go-memdb"
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"github.com/hashicorp/consul/agent/structs"
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pbacl "github.com/hashicorp/consul/proto/pbacl"
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memdb "github.com/hashicorp/go-memdb"
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)
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type TokenPoliciesIndex struct {
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@ -88,7 +88,6 @@ func (h *Server) Subscribe(req *pbsubscribe.SubscribeRequest, serverStream pbsub
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for {
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events, err := sub.Next(ctx)
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switch {
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// TODO: test case
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case errors.Is(err, stream.ErrSubscriptionClosed):
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h.Logger.Trace("subscription reset by server", "stream_id", streamID)
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return status.Error(codes.Aborted, err.Error())
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@ -10,9 +10,12 @@ import (
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"github.com/google/go-cmp/cmp"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/go-uuid"
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"github.com/stretchr/testify/require"
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"golang.org/x/sync/errgroup"
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gogrpc "google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/agent/consul/state"
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@ -688,15 +691,11 @@ node "node1" {
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chEvents := make(chan eventOrError, 0)
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go recvEvents(chEvents, streamHandle)
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var snapshotEvents []*pbsubscribe.Event
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for i := 0; i < 2; i++ {
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snapshotEvents = append(snapshotEvents, getEvent(t, chEvents))
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}
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event := getEvent(t, chEvents)
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require.Equal(t, "foo", event.GetServiceHealth().CheckServiceNode.Service.Service)
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require.Equal(t, "node1", event.GetServiceHealth().CheckServiceNode.Node.Node)
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require.Len(t, snapshotEvents, 2)
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require.Equal(t, "foo", snapshotEvents[0].GetServiceHealth().CheckServiceNode.Service.Service)
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require.Equal(t, "node1", snapshotEvents[0].GetServiceHealth().CheckServiceNode.Node.Node)
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require.True(t, snapshotEvents[1].GetEndOfSnapshot())
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require.True(t, getEvent(t, chEvents).GetEndOfSnapshot())
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// Update the service with a new port to trigger a new event.
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req := &structs.RegisterRequest{
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@ -719,7 +718,7 @@ node "node1" {
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}
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require.NoError(t, backend.store.EnsureRegistration(ids.Next("reg4"), req))
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event := getEvent(t, chEvents)
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event = getEvent(t, chEvents)
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service := event.GetServiceHealth().CheckServiceNode.Service
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require.Equal(t, "foo", service.Service)
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require.Equal(t, int32(1234), service.Port)
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@ -794,548 +793,78 @@ node "node1" {
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}
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}
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/*
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func TestStreaming_Subscribe_ACLUpdate(t *testing.T) {
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t.Parallel()
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func TestServer_Subscribe_IntegrationWithBackend_ACLUpdate(t *testing.T) {
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backend, err := newTestBackend()
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require.NoError(t, err)
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srv := &Server{Backend: backend, Logger: hclog.New(nil)}
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addr := newTestServer(t, srv)
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require := require.New(t)
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dir, _, server, codec := testACLFilterServerWithConfigFn(t, func(c *Config) {
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLMasterToken = "root"
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c.ACLDefaultPolicy = "deny"
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c.ACLEnforceVersion8 = true
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c.GRPCEnabled = true
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})
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defer os.RemoveAll(dir)
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defer server.Shutdown()
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defer codec.Close()
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dir2, client := testClientWithConfig(t, func(c *Config) {
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c.Datacenter = "dc1"
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c.NodeName = uniqueNodeName(t.Name())
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c.GRPCEnabled = true
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})
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defer os.RemoveAll(dir2)
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defer client.Shutdown()
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// Try to join
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testrpc.WaitForLeader(t, server.RPC, "dc1")
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joinLAN(t, client, server)
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testrpc.WaitForTestAgent(t, client.RPC, "dc1", testrpc.WithToken("root"))
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// Create a new token/policy that only has access to one node.
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var token structs.ACLToken
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policy, err := upsertTestPolicyWithRules(codec, "root", "dc1", fmt.Sprintf(`
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rules := `
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service "foo" {
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policy = "write"
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}
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node "%s" {
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node "node1" {
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policy = "write"
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}
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`, server.config.NodeName))
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require.NoError(err)
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`
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authorizer, err := acl.NewAuthorizerFromRules(
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"1", 0, rules, acl.SyntaxCurrent,
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&acl.Config{WildcardName: structs.WildcardSpecifier},
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nil)
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require.NoError(t, err)
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authorizer = acl.NewChainedAuthorizer([]acl.Authorizer{authorizer, acl.DenyAll()})
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require.Equal(t, acl.Deny, authorizer.NodeRead("denied", nil))
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arg := structs.ACLTokenSetRequest{
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Datacenter: "dc1",
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ACLToken: structs.ACLToken{
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Description: "Service/node token",
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Policies: []structs.ACLTokenPolicyLink{
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structs.ACLTokenPolicyLink{
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ID: policy.ID,
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},
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},
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Local: false,
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},
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WriteRequest: structs.WriteRequest{Token: "root"},
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// TODO: is there any easy way to do this with the acl package?
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token := "this-token-is-good"
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backend.authorizer = func(tok string) acl.Authorizer {
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if tok == token {
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return authorizer
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}
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return acl.DenyAll()
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}
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require.NoError(msgpackrpc.CallWithCodec(codec, "ACL.TokenSet", &arg, &token))
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auth, err := server.ResolveToken(token.SecretID)
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require.NoError(err)
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require.Equal(auth.NodeRead("denied", nil), acl.Deny)
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ids := newCounter()
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// Set up the gRPC client.
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conn, err := client.GRPCConn()
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require.NoError(err)
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streamClient := pbsubscribe.NewConsulClient(conn)
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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t.Cleanup(cancel)
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// Start a Subscribe call to our streaming endpoint for the service we have access to.
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{
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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conn, err := gogrpc.DialContext(ctx, addr.String(), gogrpc.WithInsecure())
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require.NoError(t, err)
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t.Cleanup(logError(t, conn.Close))
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streamClient := pbsubscribe.NewStateChangeSubscriptionClient(conn)
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streamHandle, err := streamClient.Subscribe(ctx, &pbsubscribe.SubscribeRequest{
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Topic: pbsubscribe.Topic_ServiceHealth,
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Key: "foo",
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Token: token.SecretID,
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Token: token,
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})
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require.NoError(err)
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require.NoError(t, err)
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// Start a goroutine to read updates off the pbsubscribe.
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eventCh := make(chan *pbsubscribe.Event, 0)
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go recvEvents(t, eventCh, streamHandle)
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chEvents := make(chan eventOrError, 0)
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go recvEvents(chEvents, streamHandle)
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// Read events off the pbsubscribe.
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var snapshotEvents []*pbsubscribe.Event
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for i := 0; i < 2; i++ {
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select {
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case event := <-eventCh:
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snapshotEvents = append(snapshotEvents, event)
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case <-time.After(5 * time.Second):
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t.Fatalf("did not receive events past %d", len(snapshotEvents))
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}
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}
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require.Len(snapshotEvents, 2)
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require.Equal("foo", snapshotEvents[0].GetServiceHealth().CheckServiceNode.Service.Service)
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require.Equal(server.config.NodeName, snapshotEvents[0].GetServiceHealth().CheckServiceNode.Node.Node)
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require.True(snapshotEvents[1].GetEndOfSnapshot())
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require.True(t, getEvent(t, chEvents).GetEndOfSnapshot())
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// Update a different token and make sure we don't see an event.
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arg2 := structs.ACLTokenSetRequest{
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Datacenter: "dc1",
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ACLToken: structs.ACLToken{
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Description: "Ignored token",
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Policies: []structs.ACLTokenPolicyLink{
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structs.ACLTokenPolicyLink{
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ID: policy.ID,
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},
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},
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Local: false,
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},
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WriteRequest: structs.WriteRequest{Token: "root"},
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tokenID, err := uuid.GenerateUUID()
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require.NoError(t, err)
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aclToken := &structs.ACLToken{
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AccessorID: tokenID,
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SecretID: token,
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Rules: "",
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}
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var ignoredToken structs.ACLToken
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require.NoError(msgpackrpc.CallWithCodec(codec, "ACL.TokenSet", &arg2, &ignoredToken))
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require.NoError(t, backend.store.ACLTokenSet(ids.Next("update"), aclToken, false))
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select {
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case event := <-eventCh:
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t.Fatalf("should not have received event: %v", event)
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case <-time.After(500 * time.Millisecond):
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}
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// Update our token to trigger a refresh event.
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token.Policies = []structs.ACLTokenPolicyLink{}
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arg := structs.ACLTokenSetRequest{
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Datacenter: "dc1",
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ACLToken: token,
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WriteRequest: structs.WriteRequest{Token: "root"},
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}
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require.NoError(msgpackrpc.CallWithCodec(codec, "ACL.TokenSet", &arg, &token))
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select {
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case event := <-eventCh:
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require.True(event.GetResetStream())
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// 500 ms was not enough in CI apparently...
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case item := <-chEvents:
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require.Error(t, item.err, "got event: %v", item.event)
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s, _ := status.FromError(item.err)
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require.Equal(t, codes.Aborted, s.Code())
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case <-time.After(2 * time.Second):
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t.Fatalf("did not receive reload event")
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t.Fatalf("timeout waiting for aborted error")
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}
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}
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}
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func TestStreaming_TLSEnabled(t *testing.T) {
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t.Parallel()
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require := require.New(t)
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dir1, conf1 := testServerConfig(t)
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conf1.VerifyIncoming = true
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conf1.VerifyOutgoing = true
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conf1.GRPCEnabled = true
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configureTLS(conf1)
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server, err := newServer(conf1)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir1)
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defer server.Shutdown()
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dir2, conf2 := testClientConfig(t)
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conf2.VerifyOutgoing = true
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conf2.GRPCEnabled = true
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configureTLS(conf2)
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client, err := NewClient(conf2)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir2)
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defer client.Shutdown()
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// Try to join
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testrpc.WaitForLeader(t, server.RPC, "dc1")
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joinLAN(t, client, server)
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testrpc.WaitForTestAgent(t, client.RPC, "dc1")
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// Register a dummy node with our service on it.
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{
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req := &structs.RegisterRequest{
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Node: "node1",
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Address: "3.4.5.6",
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Datacenter: "dc1",
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Service: &structs.NodeService{
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ID: "redis1",
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Service: "redis",
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Address: "3.4.5.6",
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Port: 8080,
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},
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}
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var out struct{}
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require.NoError(server.RPC("Catalog.Register", &req, &out))
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}
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// Start a Subscribe call to our streaming endpoint from the client.
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{
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conn, err := client.GRPCConn()
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require.NoError(err)
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streamClient := pbsubscribe.NewConsulClient(conn)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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streamHandle, err := streamClient.Subscribe(ctx, &pbsubscribe.SubscribeRequest{Topic: pbsubscribe.Topic_ServiceHealth, Key: "redis"})
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require.NoError(err)
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// Start a goroutine to read updates off the pbsubscribe.
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eventCh := make(chan *pbsubscribe.Event, 0)
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go recvEvents(t, eventCh, streamHandle)
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var snapshotEvents []*pbsubscribe.Event
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for i := 0; i < 2; i++ {
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select {
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case event := <-eventCh:
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snapshotEvents = append(snapshotEvents, event)
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case <-time.After(3 * time.Second):
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t.Fatalf("did not receive events past %d", len(snapshotEvents))
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}
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}
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// Make sure the snapshot events come back with no issues.
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require.Len(snapshotEvents, 2)
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}
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// Start a Subscribe call to our streaming endpoint from the server's loopback client.
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{
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conn, err := server.GRPCConn()
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require.NoError(err)
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retryFailedConn(t, conn)
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streamClient := pbsubscribe.NewConsulClient(conn)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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streamHandle, err := streamClient.Subscribe(ctx, &pbsubscribe.SubscribeRequest{Topic: pbsubscribe.Topic_ServiceHealth, Key: "redis"})
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require.NoError(err)
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// Start a goroutine to read updates off the pbsubscribe.
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eventCh := make(chan *pbsubscribe.Event, 0)
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go recvEvents(t, eventCh, streamHandle)
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var snapshotEvents []*pbsubscribe.Event
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for i := 0; i < 2; i++ {
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select {
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case event := <-eventCh:
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snapshotEvents = append(snapshotEvents, event)
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case <-time.After(3 * time.Second):
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t.Fatalf("did not receive events past %d", len(snapshotEvents))
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}
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}
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// Make sure the snapshot events come back with no issues.
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require.Len(snapshotEvents, 2)
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}
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}
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func TestStreaming_TLSReload(t *testing.T) {
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t.Parallel()
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// Set up a server with initially bad certificates.
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require := require.New(t)
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dir1, conf1 := testServerConfig(t)
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conf1.VerifyIncoming = true
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conf1.VerifyOutgoing = true
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conf1.CAFile = "../../test/ca/root.cer"
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conf1.CertFile = "../../test/key/ssl-cert-snakeoil.pem"
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conf1.KeyFile = "../../test/key/ssl-cert-snakeoil.key"
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conf1.GRPCEnabled = true
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server, err := newServer(conf1)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir1)
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defer server.Shutdown()
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// Set up a client with valid certs and verify_outgoing = true
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dir2, conf2 := testClientConfig(t)
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conf2.VerifyOutgoing = true
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conf2.GRPCEnabled = true
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configureTLS(conf2)
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client, err := NewClient(conf2)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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defer os.RemoveAll(dir2)
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defer client.Shutdown()
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testrpc.WaitForLeader(t, server.RPC, "dc1")
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// Subscribe calls should fail initially
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joinLAN(t, client, server)
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conn, err := client.GRPCConn()
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require.NoError(err)
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{
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streamClient := pbsubscribe.NewConsulClient(conn)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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_, err = streamClient.Subscribe(ctx, &pbsubscribe.SubscribeRequest{Topic: pbsubscribe.Topic_ServiceHealth, Key: "redis"})
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require.Error(err, "tls: bad certificate")
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}
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// Reload the server with valid certs
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newConf := server.config.ToTLSUtilConfig()
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newConf.CertFile = "../../test/key/ourdomain.cer"
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newConf.KeyFile = "../../test/key/ourdomain.key"
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server.tlsConfigurator.Update(newConf)
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// Try the subscribe call again
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{
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retryFailedConn(t, conn)
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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streamClient := pbsubscribe.NewConsulClient(conn)
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_, err = streamClient.Subscribe(ctx, &pbsubscribe.SubscribeRequest{Topic: pbsubscribe.Topic_ServiceHealth, Key: "redis"})
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require.NoError(err)
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}
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}
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// retryFailedConn forces the ClientConn to reset its backoff timer and retry the connection,
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// to simulate the client eventually retrying after the initial failure. This is used both to simulate
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// retrying after an expected failure as well as to avoid flakiness when running many tests in parallel.
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func retryFailedConn(t *testing.T, conn *grpc.ClientConn) {
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state := conn.GetState()
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if state.String() != "TRANSIENT_FAILURE" {
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return
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}
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// If the connection has failed, retry and wait for a state change.
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conn.ResetConnectBackoff()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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require.True(t, conn.WaitForStateChange(ctx, state))
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}
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func TestStreaming_DeliversAllMessages(t *testing.T) {
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// This is a fuzz/probabilistic test to try to provoke streaming into dropping
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// messages. There is a bug in the initial implementation that should make
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// this fail. While we can't be certain a pass means it's correct, it is
|
||||
// useful for finding bugs in our concurrency design.
|
||||
|
||||
// The issue is that when updates are coming in fast such that updates occur
|
||||
// in between us making the snapshot and beginning the stream updates, we
|
||||
// shouldn't miss anything.
|
||||
|
||||
// To test this, we will run a background goroutine that will write updates as
|
||||
// fast as possible while we then try to stream the results and ensure that we
|
||||
// see every change. We'll make the updates monotonically increasing so we can
|
||||
// easily tell if we missed one.
|
||||
|
||||
require := require.New(t)
|
||||
dir1, server := testServerWithConfig(t, func(c *Config) {
|
||||
c.Datacenter = "dc1"
|
||||
c.Bootstrap = true
|
||||
c.GRPCEnabled = true
|
||||
})
|
||||
defer os.RemoveAll(dir1)
|
||||
defer server.Shutdown()
|
||||
codec := rpcClient(t, server)
|
||||
defer codec.Close()
|
||||
|
||||
dir2, client := testClientWithConfig(t, func(c *Config) {
|
||||
c.Datacenter = "dc1"
|
||||
c.NodeName = uniqueNodeName(t.Name())
|
||||
c.GRPCEnabled = true
|
||||
})
|
||||
defer os.RemoveAll(dir2)
|
||||
defer client.Shutdown()
|
||||
|
||||
// Try to join
|
||||
testrpc.WaitForLeader(t, server.RPC, "dc1")
|
||||
joinLAN(t, client, server)
|
||||
testrpc.WaitForTestAgent(t, client.RPC, "dc1")
|
||||
|
||||
// Register a whole bunch of service instances so that the initial snapshot on
|
||||
// subscribe is big enough to take a bit of time to load giving more
|
||||
// opportunity for missed updates if there is a bug.
|
||||
for i := 0; i < 1000; i++ {
|
||||
req := &structs.RegisterRequest{
|
||||
Node: fmt.Sprintf("node-redis-%03d", i),
|
||||
Address: "3.4.5.6",
|
||||
Datacenter: "dc1",
|
||||
Service: &structs.NodeService{
|
||||
ID: fmt.Sprintf("redis-%03d", i),
|
||||
Service: "redis",
|
||||
Port: 11211,
|
||||
},
|
||||
}
|
||||
var out struct{}
|
||||
require.NoError(server.RPC("Catalog.Register", &req, &out))
|
||||
}
|
||||
|
||||
// Start background writer
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
||||
defer cancel()
|
||||
|
||||
go func() {
|
||||
// Update the registration with a monotonically increasing port as fast as
|
||||
// we can.
|
||||
req := &structs.RegisterRequest{
|
||||
Node: "node1",
|
||||
Address: "3.4.5.6",
|
||||
Datacenter: "dc1",
|
||||
Service: &structs.NodeService{
|
||||
ID: "redis-canary",
|
||||
Service: "redis",
|
||||
Port: 0,
|
||||
},
|
||||
}
|
||||
for {
|
||||
if ctx.Err() != nil {
|
||||
return
|
||||
}
|
||||
var out struct{}
|
||||
require.NoError(server.RPC("Catalog.Register", &req, &out))
|
||||
req.Service.Port++
|
||||
if req.Service.Port > 100 {
|
||||
return
|
||||
}
|
||||
time.Sleep(1 * time.Millisecond)
|
||||
}
|
||||
}()
|
||||
|
||||
// Now start a whole bunch of streamers in parallel to maximise chance of
|
||||
// catching a race.
|
||||
conn, err := client.GRPCConn()
|
||||
require.NoError(err)
|
||||
|
||||
streamClient := pbsubscribe.NewConsulClient(conn)
|
||||
|
||||
n := 5
|
||||
var wg sync.WaitGroup
|
||||
var updateCount uint64
|
||||
// Buffered error chan so that workers can exit and terminate wg without
|
||||
// blocking on send. We collect errors this way since t isn't thread safe.
|
||||
errCh := make(chan error, n)
|
||||
for i := 0; i < n; i++ {
|
||||
wg.Add(1)
|
||||
go verifyMonotonicStreamUpdates(ctx, t, streamClient, &wg, i, &updateCount, errCh)
|
||||
}
|
||||
|
||||
// Wait until all subscribers have verified the first bunch of updates all got
|
||||
// delivered.
|
||||
wg.Wait()
|
||||
|
||||
close(errCh)
|
||||
|
||||
// Require that none of them errored. Since we closed the chan above this loop
|
||||
// should terminate immediately if no errors were buffered.
|
||||
for err := range errCh {
|
||||
require.NoError(err)
|
||||
}
|
||||
|
||||
// Sanity check that at least some non-snapshot messages were delivered. We
|
||||
// can't know exactly how many because it's timing dependent based on when
|
||||
// each subscribers snapshot occurs.
|
||||
require.True(atomic.LoadUint64(&updateCount) > 0,
|
||||
"at least some of the subscribers should have received non-snapshot updates")
|
||||
}
|
||||
|
||||
type testLogger interface {
|
||||
Logf(format string, args ...interface{})
|
||||
}
|
||||
|
||||
func verifyMonotonicStreamUpdates(ctx context.Context, logger testLogger, client pbsubscribe.StateChangeSubscriptionClient, wg *sync.WaitGroup, i int, updateCount *uint64, errCh chan<- error) {
|
||||
defer wg.Done()
|
||||
streamHandle, err := client.Subscribe(ctx, &pbsubscribe.SubscribeRequest{Topic: pbsubscribe.Topic_ServiceHealth, Key: "redis"})
|
||||
if err != nil {
|
||||
if strings.Contains(err.Error(), "context deadline exceeded") ||
|
||||
strings.Contains(err.Error(), "context canceled") {
|
||||
logger.Logf("subscriber %05d: context cancelled before loop")
|
||||
return
|
||||
}
|
||||
errCh <- err
|
||||
return
|
||||
}
|
||||
|
||||
snapshotDone := false
|
||||
expectPort := 0
|
||||
for {
|
||||
event, err := streamHandle.Recv()
|
||||
if err == io.EOF {
|
||||
break
|
||||
}
|
||||
if err != nil {
|
||||
if strings.Contains(err.Error(), "context deadline exceeded") ||
|
||||
strings.Contains(err.Error(), "context canceled") {
|
||||
break
|
||||
}
|
||||
errCh <- err
|
||||
return
|
||||
}
|
||||
|
||||
// Ignore snapshot message
|
||||
if event.GetEndOfSnapshot() || event.GetResumeStream() {
|
||||
snapshotDone = true
|
||||
logger.Logf("subscriber %05d: snapshot done, expect next port to be %d", i, expectPort)
|
||||
} else if snapshotDone {
|
||||
// Verify we get all updates in order
|
||||
svc, err := svcOrErr(event)
|
||||
if err != nil {
|
||||
errCh <- err
|
||||
return
|
||||
}
|
||||
if expectPort != svc.Port {
|
||||
errCh <- fmt.Errorf("subscriber %05d: missed %d update(s)!", i, svc.Port-expectPort)
|
||||
return
|
||||
}
|
||||
atomic.AddUint64(updateCount, 1)
|
||||
logger.Logf("subscriber %05d: got event with correct port=%d", i, expectPort)
|
||||
expectPort++
|
||||
} else {
|
||||
// This is a snapshot update. Check if it's an update for the canary
|
||||
// instance that got applied before our snapshot was sent (likely)
|
||||
svc, err := svcOrErr(event)
|
||||
if err != nil {
|
||||
errCh <- err
|
||||
return
|
||||
}
|
||||
if svc.ID == "redis-canary" {
|
||||
// Update the expected port we see in the next update to be one more
|
||||
// than the port in the snapshot.
|
||||
expectPort = svc.Port + 1
|
||||
logger.Logf("subscriber %05d: saw canary in snapshot with port %d", i, svc.Port)
|
||||
}
|
||||
}
|
||||
if expectPort > 100 {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func svcOrErr(event *pbsubscribe.Event) (*pbservice.NodeService, error) {
|
||||
health := event.GetServiceHealth()
|
||||
if health == nil {
|
||||
return nil, fmt.Errorf("not a health event: %#v", event)
|
||||
}
|
||||
csn := health.CheckServiceNode
|
||||
if csn == nil {
|
||||
return nil, fmt.Errorf("nil CSN: %#v", event)
|
||||
}
|
||||
if csn.Service == nil {
|
||||
return nil, fmt.Errorf("nil service: %#v", event)
|
||||
}
|
||||
return csn.Service, nil
|
||||
}
|
||||
*/
|
||||
|
||||
func logError(t *testing.T, f func() error) func() {
|
||||
return func() {
|
||||
|
|
|
|||
Loading…
Reference in New Issue