ca: fix mockCAServerDelegate to work with the new interface

raftApply was removed so ApplyCARequest needs to handle all the possible operations

Also set the providerShim to use the mock provider.

other changes are small test improvements that were necessary to debug the failures.

agent/connect/ca/provider_consul.go

@@ -113,23 +113,15 @@ func (c *ConsulProvider) Configure(cfg ProviderConfig) error {
 		return nil
 	}
 
-	// Write the provider state to the state store.
-	newState := structs.CAConsulProviderState{
-		ID: c.id,
-	}
-
 	args := &structs.CARequest{
 		Op:            structs.CAOpSetProviderState,
-		ProviderState: &newState,
+		ProviderState: &structs.CAConsulProviderState{ID: c.id},
 	}
 	if _, err := c.Delegate.ApplyCARequest(args); err != nil {
 		return err
 	}
 
-	c.Logger.Debug("consul CA provider configured",
-		"id", c.id,
-		"is_primary", c.isPrimary,
-	)
+	c.Logger.Debug("consul CA provider configured", "id", c.id, "is_primary", c.isPrimary)
 
 	return nil
 }

agent/consul/leader_connect_ca.go

@@ -23,10 +23,10 @@ type caState string
 
 const (
 	caStateUninitialized     caState = "UNINITIALIZED"
-	caStateInitializing              = "INITIALIZING"
-	caStateInitialized               = "INITIALIZED"
-	caStateRenewIntermediate         = "RENEWING"
-	caStateReconfig                  = "RECONFIGURING"
+	caStateInitializing      caState = "INITIALIZING"
+	caStateInitialized       caState = "INITIALIZED"
+	caStateRenewIntermediate caState = "RENEWING"
+	caStateReconfig          caState = "RECONFIGURING"
 )
 
 // caServerDelegate is an interface for server operations for facilitating

agent/consul/leader_connect_ca_test.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/hashicorp/go-version"
 	"github.com/hashicorp/serf/serf"
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	"github.com/hashicorp/consul/agent/connect"
@@ -61,15 +62,57 @@ func (m *mockCAServerDelegate) CheckServers(datacenter string, fn func(*metadata
 	})
 }
 
+// ApplyCARequest mirrors FSM.applyConnectCAOperation because that functionality
+// is not exported.
 func (m *mockCAServerDelegate) ApplyCARequest(req *structs.CARequest) (interface{}, error) {
-	return ca.ApplyCARequestToStore(m.store, req)
-}
+	idx, _, err := m.store.CAConfig(nil)
+	if err != nil {
+		return nil, err
+	}
 
-func (m *mockCAServerDelegate) createCAProvider(conf *structs.CAConfiguration) (ca.Provider, error) {
-	return &mockCAProvider{
-		callbackCh: m.callbackCh,
-		rootPEM:    m.primaryRoot.RootCert,
-	}, nil
+	m.callbackCh <- fmt.Sprintf("raftApply/ConnectCA")
+
+	switch req.Op {
+	case structs.CAOpSetConfig:
+		if req.Config.ModifyIndex != 0 {
+			act, err := m.store.CACheckAndSetConfig(idx+1, req.Config.ModifyIndex, req.Config)
+			if err != nil {
+				return nil, err
+			}
+
+			return act, nil
+		}
+
+		return nil, m.store.CASetConfig(idx+1, req.Config)
+	case structs.CAOpSetRootsAndConfig:
+		act, err := m.store.CARootSetCAS(idx, req.Index, req.Roots)
+		if err != nil || !act {
+			return act, err
+		}
+
+		act, err = m.store.CACheckAndSetConfig(idx+1, req.Config.ModifyIndex, req.Config)
+		if err != nil {
+			return nil, err
+		}
+		return act, nil
+	case structs.CAOpSetProviderState:
+		_, err := m.store.CASetProviderState(idx+1, req.ProviderState)
+		if err != nil {
+			return nil, err
+		}
+
+		return true, nil
+	case structs.CAOpDeleteProviderState:
+		if err := m.store.CADeleteProviderState(idx+1, req.ProviderState.ID); err != nil {
+			return nil, err
+		}
+
+		return true, nil
+	case structs.CAOpIncrementProviderSerialNumber:
+		return uint64(2), nil
+	default:
+		return nil, fmt.Errorf("Invalid CA operation '%s'", req.Op)
+	}
 }
 
 func (m *mockCAServerDelegate) forwardDC(method, dc string, args interface{}, reply interface{}) error {
@@ -98,23 +141,6 @@ func (m *mockCAServerDelegate) generateCASignRequest(csr string) *structs.CASign
 	}
 }
 
-func (m *mockCAServerDelegate) raftApply(t structs.MessageType, msg interface{}) (interface{}, error) {
-	if t == structs.ConnectCARequestType {
-		req := msg.(*structs.CARequest)
-		act, err := m.store.CARootSetCAS(1, req.Index, req.Roots)
-		require.NoError(m.t, err)
-		require.True(m.t, act)
-
-		act, err = m.store.CACheckAndSetConfig(1, req.Config.ModifyIndex, req.Config)
-		require.NoError(m.t, err)
-		require.True(m.t, act)
-	} else {
-		return nil, fmt.Errorf("got invalid MessageType %v", t)
-	}
-	m.callbackCh <- fmt.Sprintf("raftApply/%s", t)
-	return nil, nil
-}
-
 // mockCAProvider mocks an empty provider implementation with a channel in order to coordinate
 // waiting for certain methods to be called.
 type mockCAProvider struct {
@@ -147,6 +173,7 @@ func (m *mockCAProvider) SupportsCrossSigning() (bool, error)
 func (m *mockCAProvider) Cleanup(_ bool, _ map[string]interface{}) error            { return nil }
 
 func waitForCh(t *testing.T, ch chan string, expected string) {
+	t.Helper()
 	select {
 	case op := <-ch:
 		if op != expected {
@@ -179,6 +206,7 @@ func testCAConfig() *structs.CAConfiguration {
 // initTestManager initializes a CAManager with a mockCAServerDelegate, consuming
 // the ops that come through the channels and returning when initialization has finished.
 func initTestManager(t *testing.T, manager *CAManager, delegate *mockCAServerDelegate) {
+	t.Helper()
 	initCh := make(chan struct{})
 	go func() {
 		require.NoError(t, manager.InitializeCA())
@@ -209,13 +237,19 @@ func TestCAManager_Initialize(t *testing.T) {
 	conf.Datacenter = "dc2"
 	delegate := NewMockCAServerDelegate(t, conf)
 	manager := NewCAManager(delegate, nil, testutil.Logger(t), conf)
+	manager.providerShim = &mockCAProvider{
+		callbackCh: delegate.callbackCh,
+		rootPEM:    delegate.primaryRoot.RootCert,
+	}
 
 	// Call InitializeCA and then confirm the RPCs and provider calls
 	// happen in the expected order.
-	require.EqualValues(t, caStateUninitialized, manager.state)
+	require.Equal(t, caStateUninitialized, manager.state)
 	errCh := make(chan error)
 	go func() {
-		errCh <- manager.InitializeCA()
+		err := manager.InitializeCA()
+		assert.NoError(t, err)
+		errCh <- err
 	}()
 
 	waitForCh(t, delegate.callbackCh, "forwardDC/ConnectCA.Roots")
@@ -234,7 +268,7 @@ func TestCAManager_Initialize(t *testing.T) {
 		t.Fatal("never got result from errCh")
 	}
 
-	require.EqualValues(t, caStateInitialized, manager.state)
+	require.Equal(t, caStateInitialized, manager.state)
 }
 
 func TestCAManager_UpdateConfigWhileRenewIntermediate(t *testing.T) {
@@ -259,6 +293,10 @@ func TestCAManager_UpdateConfigWhileRenewIntermediate(t *testing.T) {
 	conf.Datacenter = "dc2"
 	delegate := NewMockCAServerDelegate(t, conf)
 	manager := NewCAManager(delegate, nil, testutil.Logger(t), conf)
+	manager.providerShim = &mockCAProvider{
+		callbackCh: delegate.callbackCh,
+		rootPEM:    delegate.primaryRoot.RootCert,
+	}
 	initTestManager(t, manager, delegate)
 
 	// Wait half the TTL for the cert to need renewing.