mirror of https://github.com/hashicorp/consul
118 lines
3.4 KiB
Go
118 lines
3.4 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package proxycfgglue
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import (
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"context"
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"errors"
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"fmt"
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"testing"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/agent/consul/state"
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"github.com/hashicorp/consul/agent/proxycfg"
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"github.com/hashicorp/consul/agent/structs"
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)
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func TestServerCompiledDiscoveryChain(t *testing.T) {
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t.Run("remote queries are delegated to the remote source", func(t *testing.T) {
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var (
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ctx = context.Background()
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req = &structs.DiscoveryChainRequest{Datacenter: "dc2"}
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correlationID = "correlation-id"
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ch = make(chan<- proxycfg.UpdateEvent)
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result = errors.New("KABOOM")
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)
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remoteSource := newMockCompiledDiscoveryChain(t)
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remoteSource.On("Notify", ctx, req, correlationID, ch).Return(result)
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dataSource := ServerCompiledDiscoveryChain(ServerDataSourceDeps{Datacenter: "dc1"}, remoteSource)
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err := dataSource.Notify(ctx, req, correlationID, ch)
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require.Equal(t, result, err)
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})
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t.Run("local queries are served from the state store", func(t *testing.T) {
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const (
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serviceName = "web"
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datacenter = "dc1"
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index = 123
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)
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store := state.NewStateStore(nil)
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require.NoError(t, store.CASetConfig(index, &structs.CAConfiguration{ClusterID: "cluster-id"}))
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require.NoError(t, store.EnsureConfigEntry(index, &structs.ServiceConfigEntry{
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Name: serviceName,
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Kind: structs.ServiceDefaults,
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}))
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req := &structs.DiscoveryChainRequest{
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Name: serviceName,
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Datacenter: datacenter,
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}
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resolver := newStaticResolver(
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policyAuthorizer(t, fmt.Sprintf(`service "%s" { policy = "read" }`, serviceName)),
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)
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dataSource := ServerCompiledDiscoveryChain(ServerDataSourceDeps{
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ACLResolver: resolver,
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Datacenter: datacenter,
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GetStore: func() Store { return store },
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}, nil)
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eventCh := make(chan proxycfg.UpdateEvent)
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err := dataSource.Notify(context.Background(), req, "", eventCh)
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require.NoError(t, err)
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// Check we get an event with the initial state.
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result := getEventResult[*structs.DiscoveryChainResponse](t, eventCh)
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require.NotNil(t, result.Chain)
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// Change the protocol to HTTP and check we get a recompiled chain.
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require.NoError(t, store.EnsureConfigEntry(index+1, &structs.ServiceConfigEntry{
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Name: serviceName,
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Kind: structs.ServiceDefaults,
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Protocol: "http",
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}))
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result = getEventResult[*structs.DiscoveryChainResponse](t, eventCh)
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require.NotNil(t, result.Chain)
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require.Equal(t, "http", result.Chain.Protocol)
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// Revoke access to the service.
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resolver.SwapAuthorizer(acl.DenyAll())
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// Write another config entry.
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require.NoError(t, store.EnsureConfigEntry(index+2, &structs.ServiceConfigEntry{
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Name: serviceName,
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Kind: structs.ServiceDefaults,
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MaxInboundConnections: 1,
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}))
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// Should no longer receive events for this service.
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expectNoEvent(t, eventCh)
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})
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}
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func newMockCompiledDiscoveryChain(t *testing.T) *mockCompiledDiscoveryChain {
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mock := &mockCompiledDiscoveryChain{}
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mock.Mock.Test(t)
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t.Cleanup(func() { mock.AssertExpectations(t) })
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return mock
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}
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type mockCompiledDiscoveryChain struct {
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mock.Mock
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}
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func (m *mockCompiledDiscoveryChain) Notify(ctx context.Context, req *structs.DiscoveryChainRequest, correlationID string, ch chan<- proxycfg.UpdateEvent) error {
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return m.Called(ctx, req, correlationID, ch).Error(0)
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}
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