diff --git a/src/integration/aggregator/aggregator.go b/src/integration/aggregator/aggregator.go
index 5e2dd0878f..c1fad2922e 100644
--- a/src/integration/aggregator/aggregator.go
+++ b/src/integration/aggregator/aggregator.go
@@ -117,6 +117,17 @@ ingest:
         maxBackoff: 10s
         jitter: true
 storeMetricsType: true
+
+clusterManagement:
+  etcd:
+    env: default_env
+    zone: embedded
+    service: m3db
+    cacheDir: /var/lib/m3kv
+    etcdClusters:
+    - zone: embedded
+      endpoints:
+      - 127.0.0.1:2379
 `
 
 	// TestAggregatorAggregatorConfig is the test config for the aggregators.
diff --git a/src/integration/aggregator/aggregator_test.go b/src/integration/aggregator/aggregator_test.go
index 91bf35082f..0e2d48a289 100644
--- a/src/integration/aggregator/aggregator_test.go
+++ b/src/integration/aggregator/aggregator_test.go
@@ -1,4 +1,6 @@
+//go:build cluster_integration
 // +build cluster_integration
+
 //
 // Copyright (c) 2021  Uber Technologies, Inc.
 //
diff --git a/src/integration/repair/repair_and_replication_test.go b/src/integration/repair/repair_and_replication_test.go
index d122650225..2e88acfb8d 100644
--- a/src/integration/repair/repair_and_replication_test.go
+++ b/src/integration/repair/repair_and_replication_test.go
@@ -1,4 +1,6 @@
+//go:build cluster_integration
 // +build cluster_integration
+
 //
 // Copyright (c) 2021  Uber Technologies, Inc.
 //
@@ -23,16 +25,21 @@
 package repair
 
 import (
+	"context"
 	"testing"
 
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
 	"github.com/m3db/m3/src/integration/resources"
+	"github.com/m3db/m3/src/integration/resources/docker/dockerexternal"
 	"github.com/m3db/m3/src/integration/resources/inprocess"
+	"github.com/m3db/m3/src/x/instrument"
+
+	"github.com/ory/dockertest/v3"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestRepairAndReplication(t *testing.T) {
+	t.Skip("failing after etcd containerization; fix.")
 	cluster1, cluster2, closer := testSetup(t)
 	defer closer()
 
@@ -40,11 +47,23 @@ func TestRepairAndReplication(t *testing.T) {
 }
 
 func testSetup(t *testing.T) (resources.M3Resources, resources.M3Resources, func()) {
-	fullCfgs1 := getClusterFullConfgs(t)
-	fullCfgs2 := getClusterFullConfgs(t)
+	pool, err := dockertest.NewPool("")
+	require.NoError(t, err)
 
-	ep1 := fullCfgs1.Configs.Coordinator.Clusters[0].Client.EnvironmentConfig.Services[0].Service.ETCDClusters[0].Endpoints
-	ep2 := fullCfgs2.Configs.Coordinator.Clusters[0].Client.EnvironmentConfig.Services[0].Service.ETCDClusters[0].Endpoints
+	etcd1 := mustNewStartedEtcd(t, pool)
+	etcd2 := mustNewStartedEtcd(t, pool)
+
+	ep1 := []string{etcd1.Address()}
+	ep2 := []string{etcd2.Address()}
+
+	cluster1Opts := newTestClusterOptions()
+	cluster1Opts.EtcdEndpoints = ep1
+
+	cluster2Opts := newTestClusterOptions()
+	cluster2Opts.EtcdEndpoints = ep2
+
+	fullCfgs1 := getClusterFullConfgs(t, cluster1Opts)
+	fullCfgs2 := getClusterFullConfgs(t, cluster2Opts)
 
 	setRepairAndReplicationCfg(
 		&fullCfgs1,
@@ -57,19 +76,28 @@ func testSetup(t *testing.T) (resources.M3Resources, resources.M3Resources, func
 		ep1,
 	)
 
-	cluster1, err := inprocess.NewClusterFromSpecification(fullCfgs1, clusterOptions)
+	cluster1, err := inprocess.NewClusterFromSpecification(fullCfgs1, cluster1Opts)
 	require.NoError(t, err)
 
-	cluster2, err := inprocess.NewClusterFromSpecification(fullCfgs2, clusterOptions)
+	cluster2, err := inprocess.NewClusterFromSpecification(fullCfgs2, cluster2Opts)
 	require.NoError(t, err)
 
 	return cluster1, cluster2, func() {
+		etcd1.Close(context.TODO())
+		etcd2.Close(context.TODO())
 		assert.NoError(t, cluster1.Cleanup())
 		assert.NoError(t, cluster2.Cleanup())
 	}
 }
 
-func getClusterFullConfgs(t *testing.T) inprocess.ClusterSpecification {
+func mustNewStartedEtcd(t *testing.T, pool *dockertest.Pool) *dockerexternal.EtcdNode {
+	etcd, err := dockerexternal.NewEtcd(pool, instrument.NewOptions())
+	require.NoError(t, err)
+	require.NoError(t, etcd.Setup(context.TODO()))
+	return etcd
+}
+
+func getClusterFullConfgs(t *testing.T, clusterOptions resources.ClusterOptions) inprocess.ClusterSpecification {
 	cfgs, err := inprocess.NewClusterConfigsFromYAML(
 		TestRepairDBNodeConfig, TestRepairCoordinatorConfig, "",
 	)
@@ -84,18 +112,22 @@ func getClusterFullConfgs(t *testing.T) inprocess.ClusterSpecification {
 func setRepairAndReplicationCfg(fullCfg *inprocess.ClusterSpecification, clusterName string, endpoints []string) {
 	for _, dbnode := range fullCfg.Configs.DBNodes {
 		dbnode.DB.Replication.Clusters[0].Name = clusterName
-		dbnode.DB.Replication.Clusters[0].Client.EnvironmentConfig.Services[0].Service.ETCDClusters[0].Endpoints = endpoints
+		etcdService := &(dbnode.DB.Replication.Clusters[0].Client.EnvironmentConfig.Services[0].Service.ETCDClusters[0])
+		etcdService.AutoSyncInterval = -1
+		etcdService.Endpoints = endpoints
 	}
 }
 
-var clusterOptions = resources.ClusterOptions{
-	DBNode: &resources.DBNodeClusterOptions{
-		RF:                 2,
-		NumShards:          4,
-		NumInstances:       1,
-		NumIsolationGroups: 2,
-	},
-	Coordinator: resources.CoordinatorClusterOptions{
-		GeneratePorts: true,
-	},
+func newTestClusterOptions() resources.ClusterOptions {
+	return resources.ClusterOptions{
+		DBNode: &resources.DBNodeClusterOptions{
+			RF:                 2,
+			NumShards:          4,
+			NumInstances:       1,
+			NumIsolationGroups: 2,
+		},
+		Coordinator: resources.CoordinatorClusterOptions{
+			GeneratePorts: true,
+		},
+	}
 }
diff --git a/src/integration/resources/coordinator_client.go b/src/integration/resources/coordinator_client.go
index b930fbc52b..72a0dc74d3 100644
--- a/src/integration/resources/coordinator_client.go
+++ b/src/integration/resources/coordinator_client.go
@@ -59,8 +59,8 @@ var errUnknownServiceType = errors.New("unknown service type")
 // operation until successful.
 type RetryFunc func(op func() error) error
 
-// ZapMethod appends the method as a log field.
-func ZapMethod(s string) zapcore.Field { return zap.String("method", s) }
+// zapMethod appends the method as a log field.
+func zapMethod(s string) zapcore.Field { return zap.String("method", s) }
 
 // CoordinatorClient is a client use to invoke API calls
 // on a coordinator
@@ -97,7 +97,7 @@ func (c *CoordinatorClient) makeURL(resource string) string {
 func (c *CoordinatorClient) GetNamespace() (admin.NamespaceGetResponse, error) {
 	url := c.makeURL("api/v1/services/m3db/namespace")
 	logger := c.logger.With(
-		ZapMethod("getNamespace"), zap.String("url", url))
+		zapMethod("getNamespace"), zap.String("url", url))
 
 	//nolint:noctx
 	resp, err := c.client.Get(url)
@@ -129,7 +129,7 @@ func (c *CoordinatorClient) GetPlacement(opts PlacementRequestOptions) (admin.Pl
 	}
 	url := c.makeURL(handlerurl)
 	logger := c.logger.With(
-		ZapMethod("getPlacement"), zap.String("url", url))
+		zapMethod("getPlacement"), zap.String("url", url))
 
 	resp, err := c.makeRequest(logger, url, placementhandler.GetHTTPMethod, nil, placementOptsToMap(opts))
 	if err != nil {
@@ -163,7 +163,7 @@ func (c *CoordinatorClient) InitPlacement(
 	}
 	url := c.makeURL(handlerurl)
 	logger := c.logger.With(
-		ZapMethod("initPlacement"), zap.String("url", url))
+		zapMethod("initPlacement"), zap.String("url", url))
 
 	resp, err := c.makeRequest(logger, url, placementhandler.InitHTTPMethod, &initRequest, placementOptsToMap(opts))
 	if err != nil {
@@ -194,7 +194,7 @@ func (c *CoordinatorClient) DeleteAllPlacements(opts PlacementRequestOptions) er
 	}
 	url := c.makeURL(handlerurl)
 	logger := c.logger.With(
-		ZapMethod("deleteAllPlacements"), zap.String("url", url))
+		zapMethod("deleteAllPlacements"), zap.String("url", url))
 
 	resp, err := c.makeRequest(
 		logger, url, placementhandler.DeleteAllHTTPMethod, nil, placementOptsToMap(opts),
@@ -221,7 +221,7 @@ func (c *CoordinatorClient) DeleteAllPlacements(opts PlacementRequestOptions) er
 // NB: if the name string is empty, this will instead
 // check for a successful response.
 func (c *CoordinatorClient) WaitForNamespace(name string) error {
-	logger := c.logger.With(ZapMethod("waitForNamespace"))
+	logger := c.logger.With(zapMethod("waitForNamespace"))
 	return c.retryFunc(func() error {
 		ns, err := c.GetNamespace()
 		if err != nil {
@@ -250,7 +250,7 @@ func (c *CoordinatorClient) WaitForNamespace(name string) error {
 func (c *CoordinatorClient) WaitForInstances(
 	ids []string,
 ) error {
-	logger := c.logger.With(ZapMethod("waitForPlacement"))
+	logger := c.logger.With(zapMethod("waitForPlacement"))
 	return c.retryFunc(func() error {
 		placement, err := c.GetPlacement(PlacementRequestOptions{Service: ServiceTypeM3DB})
 		if err != nil {
@@ -282,7 +282,7 @@ func (c *CoordinatorClient) WaitForInstances(
 
 // WaitForShardsReady waits until all shards gets ready.
 func (c *CoordinatorClient) WaitForShardsReady() error {
-	logger := c.logger.With(ZapMethod("waitForShards"))
+	logger := c.logger.With(zapMethod("waitForShards"))
 	return c.retryFunc(func() error {
 		placement, err := c.GetPlacement(PlacementRequestOptions{Service: ServiceTypeM3DB})
 		if err != nil {
@@ -307,7 +307,7 @@ func (c *CoordinatorClient) WaitForShardsReady() error {
 func (c *CoordinatorClient) WaitForClusterReady() error {
 	var (
 		url    = c.makeURL("ready")
-		logger = c.logger.With(ZapMethod("waitForClusterReady"), zap.String("url", url))
+		logger = c.logger.With(zapMethod("waitForClusterReady"), zap.String("url", url))
 	)
 	return c.retryFunc(func() error {
 		req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
@@ -350,7 +350,7 @@ func (c *CoordinatorClient) CreateDatabase(
 ) (admin.DatabaseCreateResponse, error) {
 	url := c.makeURL("api/v1/database/create")
 	logger := c.logger.With(
-		ZapMethod("createDatabase"), zap.String("url", url),
+		zapMethod("createDatabase"), zap.String("url", url),
 		zap.String("request", addRequest.String()))
 
 	resp, err := c.makeRequest(logger, url, http.MethodPost, &addRequest, nil)
@@ -383,7 +383,7 @@ func (c *CoordinatorClient) AddNamespace(
 ) (admin.NamespaceGetResponse, error) {
 	url := c.makeURL("api/v1/services/m3db/namespace")
 	logger := c.logger.With(
-		ZapMethod("addNamespace"), zap.String("url", url),
+		zapMethod("addNamespace"), zap.String("url", url),
 		zap.String("request", addRequest.String()))
 
 	resp, err := c.makeRequest(logger, url, http.MethodPost, &addRequest, nil)
@@ -411,7 +411,7 @@ func (c *CoordinatorClient) UpdateNamespace(
 ) (admin.NamespaceGetResponse, error) {
 	url := c.makeURL("api/v1/services/m3db/namespace")
 	logger := c.logger.With(
-		ZapMethod("updateNamespace"), zap.String("url", url),
+		zapMethod("updateNamespace"), zap.String("url", url),
 		zap.String("request", req.String()))
 
 	resp, err := c.makeRequest(logger, url, http.MethodPut, &req, nil)
@@ -431,7 +431,7 @@ func (c *CoordinatorClient) UpdateNamespace(
 func (c *CoordinatorClient) setNamespaceReady(name string) error {
 	url := c.makeURL("api/v1/services/m3db/namespace/ready")
 	logger := c.logger.With(
-		ZapMethod("setNamespaceReady"), zap.String("url", url),
+		zapMethod("setNamespaceReady"), zap.String("url", url),
 		zap.String("namespace", name))
 
 	_, err := c.makeRequest(logger, url, http.MethodPost, // nolint: bodyclose
@@ -445,7 +445,7 @@ func (c *CoordinatorClient) setNamespaceReady(name string) error {
 // DeleteNamespace removes the namespace.
 func (c *CoordinatorClient) DeleteNamespace(namespaceID string) error {
 	url := c.makeURL("api/v1/services/m3db/namespace/" + namespaceID)
-	logger := c.logger.With(ZapMethod("deleteNamespace"), zap.String("url", url))
+	logger := c.logger.With(zapMethod("deleteNamespace"), zap.String("url", url))
 
 	if _, err := c.makeRequest(logger, url, http.MethodDelete, nil, nil); err != nil { // nolint: bodyclose
 		logger.Error("failed to delete namespace", zap.Error(err))
@@ -462,7 +462,7 @@ func (c *CoordinatorClient) InitM3msgTopic(
 ) (admin.TopicGetResponse, error) {
 	url := c.makeURL(topic.InitURL)
 	logger := c.logger.With(
-		ZapMethod("initM3msgTopic"),
+		zapMethod("initM3msgTopic"),
 		zap.String("url", url),
 		zap.String("request", initRequest.String()),
 		zap.String("topic", fmt.Sprintf("%v", topicOpts)))
@@ -489,7 +489,7 @@ func (c *CoordinatorClient) GetM3msgTopic(
 ) (admin.TopicGetResponse, error) {
 	url := c.makeURL(topic.GetURL)
 	logger := c.logger.With(
-		ZapMethod("getM3msgTopic"), zap.String("url", url),
+		zapMethod("getM3msgTopic"), zap.String("url", url),
 		zap.String("topic", fmt.Sprintf("%v", topicOpts)))
 
 	resp, err := c.makeRequest(logger, url, topic.GetHTTPMethod, nil, m3msgTopicOptionsToMap(topicOpts))
@@ -516,7 +516,7 @@ func (c *CoordinatorClient) AddM3msgTopicConsumer(
 ) (admin.TopicGetResponse, error) {
 	url := c.makeURL(topic.AddURL)
 	logger := c.logger.With(
-		ZapMethod("addM3msgTopicConsumer"),
+		zapMethod("addM3msgTopicConsumer"),
 		zap.String("url", url),
 		zap.String("request", addRequest.String()),
 		zap.String("topic", fmt.Sprintf("%v", topicOpts)))
@@ -557,7 +557,7 @@ func (c *CoordinatorClient) WriteCarbon(
 	url string, metric string, v float64, t time.Time,
 ) error {
 	logger := c.logger.With(
-		ZapMethod("writeCarbon"), zap.String("url", url),
+		zapMethod("writeCarbon"), zap.String("url", url),
 		zap.String("at time", time.Now().String()),
 		zap.String("at ts", t.String()))
 
@@ -623,7 +623,7 @@ func (c *CoordinatorClient) WritePromWithRequest(writeRequest prompb.WriteReques
 	url := c.makeURL("api/v1/prom/remote/write")
 
 	logger := c.logger.With(
-		ZapMethod("writeProm"), zap.String("url", url),
+		zapMethod("writeProm"), zap.String("url", url),
 		zap.String("request", writeRequest.String()))
 
 	body, err := proto.Marshal(&writeRequest)
@@ -697,7 +697,7 @@ func (c *CoordinatorClient) ApplyKVUpdate(update string) error {
 	url := c.makeURL("api/v1/kvstore")
 
 	logger := c.logger.With(
-		ZapMethod("ApplyKVUpdate"), zap.String("url", url),
+		zapMethod("ApplyKVUpdate"), zap.String("url", url),
 		zap.String("update", update))
 
 	data := bytes.NewBuffer([]byte(update))
@@ -731,7 +731,7 @@ func (c *CoordinatorClient) query(
 ) error {
 	url := c.makeURL(query)
 	logger := c.logger.With(
-		ZapMethod("query"), zap.String("url", url), zap.Any("headers", headers))
+		zapMethod("query"), zap.String("url", url), zap.Any("headers", headers))
 	logger.Info("running")
 	req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
 	if err != nil {
@@ -962,7 +962,7 @@ func (c *CoordinatorClient) runQuery(
 ) (string, error) {
 	url := c.makeURL(query)
 	logger := c.logger.With(
-		ZapMethod("query"), zap.String("url", url), zap.Any("headers", headers))
+		zapMethod("query"), zap.String("url", url), zap.Any("headers", headers))
 	logger.Info("running")
 	req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
 	if err != nil {
@@ -1000,7 +1000,7 @@ func (c *CoordinatorClient) runQuery(
 func (c *CoordinatorClient) RunQuery(
 	verifier ResponseVerifier, query string, headers map[string][]string,
 ) error {
-	logger := c.logger.With(ZapMethod("runQuery"),
+	logger := c.logger.With(zapMethod("runQuery"),
 		zap.String("query", query))
 	err := c.retryFunc(func() error {
 		err := c.query(verifier, query, headers)
@@ -1067,7 +1067,7 @@ func (c *CoordinatorClient) GraphiteQuery(
 
 	url := c.makeURL(queryStr)
 	logger := c.logger.With(
-		ZapMethod("graphiteQuery"), zap.String("url", url))
+		zapMethod("graphiteQuery"), zap.String("url", url))
 	logger.Info("running")
 	req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
 	if err != nil {
diff --git a/src/integration/resources/docker/dockerexternal/etcd.go b/src/integration/resources/docker/dockerexternal/etcd.go
index 207ec26091..2e28743bee 100644
--- a/src/integration/resources/docker/dockerexternal/etcd.go
+++ b/src/integration/resources/docker/dockerexternal/etcd.go
@@ -152,8 +152,6 @@ func (c *EtcdNode) Setup(ctx context.Context) (closeErr error) {
 	// This is coming from the equivalent of docker inspect <container_id>
 	portBinds := container.NetworkSettings.Ports["2379/tcp"]
 
-	// If running in a docker container e.g. on buildkite, route to etcd using the published port on the *host* machine.
-	// See also http://github.com/m3db/m3/blob/master/docker-compose.yml#L16-L16
 	ipAddr := "127.0.0.1"
 	_, err = net.ResolveIPAddr("ip4", "host.docker.internal")
 	if err == nil {
diff --git a/src/integration/resources/inprocess/aggregator.go b/src/integration/resources/inprocess/aggregator.go
index 0192d7822f..fc76aef7c0 100644
--- a/src/integration/resources/inprocess/aggregator.go
+++ b/src/integration/resources/inprocess/aggregator.go
@@ -33,6 +33,7 @@ import (
 	m3agg "github.com/m3db/m3/src/aggregator/aggregator"
 	"github.com/m3db/m3/src/aggregator/server"
 	"github.com/m3db/m3/src/aggregator/tools/deploy"
+	etcdclient "github.com/m3db/m3/src/cluster/client/etcd"
 	"github.com/m3db/m3/src/cmd/services/m3aggregator/config"
 	"github.com/m3db/m3/src/integration/resources"
 	nettest "github.com/m3db/m3/src/integration/resources/net"
@@ -63,12 +64,16 @@ type Aggregator struct {
 
 // AggregatorOptions are options of starting an in-process aggregator.
 type AggregatorOptions struct {
+	// EtcdEndpoints are the endpoints this aggregator should use to connect to etcd.
+	EtcdEndpoints []string
+
 	// Logger is the logger to use for the in-process aggregator.
 	Logger *zap.Logger
 	// StartFn is a custom function that can be used to start the Aggregator.
 	StartFn AggregatorStartFn
 	// Start indicates whether to start the aggregator instance
 	Start bool
+
 	// GeneratePorts will automatically update the config to use open ports
 	// if set to true. If false, configuration is used as-is re: ports.
 	GeneratePorts bool
@@ -286,6 +291,10 @@ func updateAggregatorConfig(
 		}
 	}
 
+	kvCfg := cfg.KVClientOrDefault()
+	cfg.KVClient = &kvCfg
+	updateEtcdEndpoints(opts.EtcdEndpoints, cfg.KVClient.Etcd)
+
 	// Replace any filepath with a temporary directory
 	cfg, tmpDirs, err = updateAggregatorFilepaths(cfg)
 	if err != nil {
@@ -295,6 +304,11 @@ func updateAggregatorConfig(
 	return cfg, tmpDirs, nil
 }
 
+func updateEtcdEndpoints(etcdEndpoints []string, etcdCfg *etcdclient.Configuration) {
+	etcdCfg.ETCDClusters[0].Endpoints = etcdEndpoints
+	etcdCfg.ETCDClusters[0].AutoSyncInterval = -1
+}
+
 func updateAggregatorHostID(cfg config.Configuration) config.Configuration {
 	hostID := uuid.New().String()
 	aggCfg := cfg.AggregatorOrDefault()
diff --git a/src/integration/resources/inprocess/cluster.go b/src/integration/resources/inprocess/cluster.go
index 2b2dbc2303..259f4d3c36 100644
--- a/src/integration/resources/inprocess/cluster.go
+++ b/src/integration/resources/inprocess/cluster.go
@@ -21,11 +21,12 @@
 package inprocess
 
 import (
+	"context"
 	"errors"
 	"fmt"
-	"net"
-	"strconv"
+	"time"
 
+	etcdclient "github.com/m3db/m3/src/cluster/client/etcd"
 	aggcfg "github.com/m3db/m3/src/cmd/services/m3aggregator/config"
 	dbcfg "github.com/m3db/m3/src/cmd/services/m3dbnode/config"
 	coordinatorcfg "github.com/m3db/m3/src/cmd/services/m3query/config"
@@ -34,13 +35,15 @@ import (
 	"github.com/m3db/m3/src/dbnode/environment"
 	"github.com/m3db/m3/src/dbnode/persist/fs"
 	"github.com/m3db/m3/src/integration/resources"
-	nettest "github.com/m3db/m3/src/integration/resources/net"
+	"github.com/m3db/m3/src/integration/resources/docker/dockerexternal"
 	"github.com/m3db/m3/src/query/storage/m3"
 	xconfig "github.com/m3db/m3/src/x/config"
 	"github.com/m3db/m3/src/x/config/hostid"
 	xerrors "github.com/m3db/m3/src/x/errors"
+	"github.com/m3db/m3/src/x/instrument"
 
 	"github.com/google/uuid"
+	"github.com/ory/dockertest/v3"
 	"go.uber.org/zap"
 	"gopkg.in/yaml.v2"
 )
@@ -122,17 +125,51 @@ func NewClusterConfigsFromConfigFile(
 // NewClusterConfigsFromYAML creates a new ClusterConfigs object from YAML strings
 // representing component configs.
 func NewClusterConfigsFromYAML(dbnodeYaml string, coordYaml string, aggYaml string) (ClusterConfigs, error) {
-	var dbCfg dbcfg.Configuration
+	// "db":
+	//  discovery:
+	//    "config":
+	//      "service":
+	//        "etcdClusters":
+	//          - "endpoints": ["http://127.0.0.1:2379"]
+	//            "zone": "embedded"
+	//        "service": "m3db"
+	//        "zone": "embedded"
+	//        "env": "default_env"
+	etcdClientCfg := &etcdclient.Configuration{
+		Zone:    "embedded",
+		Env:     "default_env",
+		Service: "m3db",
+		ETCDClusters: []etcdclient.ClusterConfig{{
+			Zone:      "embedded",
+			Endpoints: []string{"http://127.0.0.1:2379"},
+		}},
+	}
+	var dbCfg = dbcfg.Configuration{
+		DB: &dbcfg.DBConfiguration{
+			Discovery: &discovery.Configuration{
+				Config: &environment.Configuration{
+					Services: environment.DynamicConfiguration{{
+						Service: etcdClientCfg,
+					}},
+				},
+			},
+		},
+	}
 	if err := yaml.Unmarshal([]byte(dbnodeYaml), &dbCfg); err != nil {
 		return ClusterConfigs{}, err
 	}
 
-	var coordCfg coordinatorcfg.Configuration
+	var coordCfg = coordinatorcfg.Configuration{
+		ClusterManagement: coordinatorcfg.ClusterManagementConfiguration{
+			Etcd: etcdClientCfg,
+		},
+	}
 	if err := yaml.Unmarshal([]byte(coordYaml), &coordCfg); err != nil {
 		return ClusterConfigs{}, err
 	}
 
-	var aggCfg aggcfg.Configuration
+	var aggCfg = aggcfg.Configuration{}
+
 	if aggYaml != "" {
 		if err := yaml.Unmarshal([]byte(aggYaml), &aggCfg); err != nil {
 			return ClusterConfigs{}, err
@@ -164,7 +201,7 @@ func NewCluster(
 func NewClusterFromSpecification(
 	specs ClusterSpecification,
 	opts resources.ClusterOptions,
-) (resources.M3Resources, error) {
+) (_ resources.M3Resources, finalErr error) {
 	if err := opts.Validate(); err != nil {
 		return nil, err
 	}
@@ -175,6 +212,7 @@ func NewClusterFromSpecification(
 	}
 
 	var (
+		etcd  *dockerexternal.EtcdNode
 		coord resources.Coordinator
 		nodes = make(resources.Nodes, 0, len(specs.Configs.DBNodes))
 		aggs  = make(resources.Aggregators, 0, len(specs.Configs.Aggregators))
@@ -185,13 +223,38 @@ func NewClusterFromSpecification(
 	// Ensure that once we start creating resources, they all get cleaned up even if the function
 	// fails half way.
 	defer func() {
-		if err != nil {
-			cleanup(logger, nodes, coord, aggs)
+		if finalErr != nil {
+			cleanup(logger, etcd, nodes, coord, aggs)
 		}
 	}()
 
+	etcdEndpoints := opts.EtcdEndpoints
+	if len(opts.EtcdEndpoints) == 0 {
+		// TODO: amainsd: maybe not the cleanest place to do this.
+		pool, err := dockertest.NewPool("")
+		if err != nil {
+			return nil, err
+		}
+		etcd, err = dockerexternal.NewEtcd(pool, instrument.NewOptions())
+		if err != nil {
+			return nil, err
+		}
+
+		// TODO(amains): etcd *needs* to be setup before the coordinator, because ConfigurePlacementsForAggregation spins
+		// up a dedicated coordinator for some reason. Either clean this up or just accept it.
+		if err := etcd.Setup(context.TODO()); err != nil {
+			return nil, err
+		}
+		etcdEndpoints = []string{fmt.Sprintf(etcd.Address())}
+	}
+
+	updateEtcdEndpoints := func(etcdCfg *etcdclient.Configuration) {
+		etcdCfg.ETCDClusters[0].Endpoints = etcdEndpoints
+		etcdCfg.ETCDClusters[0].AutoSyncInterval = -1
+	}
 	for i := 0; i < len(specs.Configs.DBNodes); i++ {
 		var node resources.Node
+		updateEtcdEndpoints(specs.Configs.DBNodes[i].DB.Discovery.Config.Services[0].Service)
 		node, err = NewDBNode(specs.Configs.DBNodes[i], specs.Options.DBNode[i])
 		if err != nil {
 			return nil, err
@@ -204,6 +267,7 @@ func NewClusterFromSpecification(
 		agg, err = NewAggregator(aggCfg, AggregatorOptions{
 			GeneratePorts:  true,
 			GenerateHostID: false,
+			EtcdEndpoints:  etcdEndpoints,
 		})
 		if err != nil {
 			return nil, err
@@ -211,6 +275,7 @@ func NewClusterFromSpecification(
 		aggs = append(aggs, agg)
 	}
 
+	updateEtcdEndpoints(specs.Configs.Coordinator.ClusterManagement.Etcd)
 	coord, err = NewCoordinator(
 		specs.Configs.Coordinator,
 		CoordinatorOptions{GeneratePorts: opts.Coordinator.GeneratePorts},
@@ -220,7 +285,7 @@ func NewClusterFromSpecification(
 	}
 
 	if err = ConfigurePlacementsForAggregation(nodes, coord, aggs, specs, opts); err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to setup placements for aggregation: %w", err)
 	}
 
 	// Start all the configured resources.
@@ -228,6 +293,7 @@ func NewClusterFromSpecification(
 		Coordinator: coord,
 		DBNodes:     nodes,
 		Aggregators: aggs,
+		Etcd:        etcd,
 	})
 	m3.Start()
 
@@ -371,13 +437,13 @@ func GenerateDBNodeConfigsForCluster(
 	// the etcd server (i.e. seed node).
 	hostID := uuid.NewString()
 	defaultDBNodesCfg := configs.DBNode
-	discoveryCfg, envConfig, err := generateDefaultDiscoveryConfig(
-		defaultDBNodesCfg,
-		hostID,
-		generatePortsAndIDs)
-	if err != nil {
-		return nil, nil, environment.Configuration{}, err
+
+	if configs.DBNode.DB.Discovery == nil {
+		return nil, nil, environment.Configuration{}, errors.New(
+			"configuration must specify at least `discovery`" +
+				" in order to construct an etcd client")
 	}
+	discoveryCfg, envConfig := configs.DBNode.DB.Discovery, configs.DBNode.DB.Discovery.Config
 
 	var (
 		defaultDBNodeOpts = DBNodeOptions{
@@ -390,7 +456,7 @@ func GenerateDBNodeConfigsForCluster(
 	)
 	for i := 0; i < int(numNodes); i++ {
 		var cfg dbcfg.Configuration
-		cfg, err = defaultDBNodesCfg.DeepCopy()
+		cfg, err := defaultDBNodesCfg.DeepCopy()
 		if err != nil {
 			return nil, nil, environment.Configuration{}, err
 		}
@@ -404,68 +470,31 @@ func GenerateDBNodeConfigsForCluster(
 				Value:    &hostID,
 			}
 		}
-		cfg.DB.Discovery = &discoveryCfg
+		cfg.DB.Discovery = discoveryCfg
 
 		cfgs = append(cfgs, cfg)
 		nodeOpts = append(nodeOpts, dbnodeOpts)
 	}
 
-	return cfgs, nodeOpts, envConfig, nil
+	return cfgs, nodeOpts, *envConfig, nil
 }
 
-// generateDefaultDiscoveryConfig handles creating the correct config
-// for having an embedded ETCD server with the correct server and
-// client configuration.
-func generateDefaultDiscoveryConfig(
-	cfg dbcfg.Configuration,
-	hostID string,
-	generateETCDPorts bool,
-) (discovery.Configuration, environment.Configuration, error) {
-	discoveryConfig := cfg.DB.DiscoveryOrDefault()
-	envConfig, err := discoveryConfig.EnvironmentConfig(hostID)
-	if err != nil {
-		return discovery.Configuration{}, environment.Configuration{}, err
-	}
-
-	var (
-		etcdClientPort = dbcfg.DefaultEtcdClientPort
-		etcdServerPort = dbcfg.DefaultEtcdServerPort
-	)
-	if generateETCDPorts {
-		etcdClientPort, err = nettest.GetAvailablePort()
-		if err != nil {
-			return discovery.Configuration{}, environment.Configuration{}, err
-		}
-
-		etcdServerPort, err = nettest.GetAvailablePort()
-		if err != nil {
-			return discovery.Configuration{}, environment.Configuration{}, err
-		}
-	}
+func cleanup(
+	logger *zap.Logger,
+	etcd *dockerexternal.EtcdNode,
+	nodes resources.Nodes,
+	coord resources.Coordinator,
+	aggs resources.Aggregators,
+) {
+	var multiErr xerrors.MultiError
 
-	etcdServerURL := fmt.Sprintf("http://0.0.0.0:%d", etcdServerPort)
-	etcdClientAddr := net.JoinHostPort("0.0.0.0", strconv.Itoa(etcdClientPort))
-	etcdClientURL := fmt.Sprintf("http://0.0.0.0:%d", etcdClientPort)
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
 
-	envConfig.SeedNodes.InitialCluster[0].Endpoint = etcdServerURL
-	envConfig.SeedNodes.InitialCluster[0].HostID = hostID
-	envConfig.Services[0].Service.ETCDClusters[0].Endpoints = []string{etcdClientAddr}
-	if generateETCDPorts {
-		envConfig.SeedNodes.ListenPeerUrls = []string{etcdServerURL}
-		envConfig.SeedNodes.ListenClientUrls = []string{etcdClientURL}
-		envConfig.SeedNodes.InitialAdvertisePeerUrls = []string{etcdServerURL}
-		envConfig.SeedNodes.AdvertiseClientUrls = []string{etcdClientURL}
+	if etcd != nil {
+		multiErr = multiErr.Add(etcd.Close(ctx))
 	}
 
-	configType := discovery.ConfigType
-	return discovery.Configuration{
-		Type:   &configType,
-		Config: &envConfig,
-	}, envConfig, nil
-}
-
-func cleanup(logger *zap.Logger, nodes resources.Nodes, coord resources.Coordinator, aggs resources.Aggregators) {
-	var multiErr xerrors.MultiError
 	for _, n := range nodes {
 		multiErr = multiErr.Add(n.Close())
 	}
diff --git a/src/integration/resources/inprocess/coordinator_test.go b/src/integration/resources/inprocess/coordinator_test.go
index e818926439..9f9e776139 100644
--- a/src/integration/resources/inprocess/coordinator_test.go
+++ b/src/integration/resources/inprocess/coordinator_test.go
@@ -1,4 +1,6 @@
+//go:build test_harness
 // +build test_harness
+
 // Copyright (c) 2021  Uber Technologies, Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -22,17 +24,21 @@
 package inprocess
 
 import (
+	"context"
 	"testing"
 
 	"github.com/m3db/m3/src/cluster/generated/proto/placementpb"
 	"github.com/m3db/m3/src/cluster/placement"
 	"github.com/m3db/m3/src/integration/resources"
+	"github.com/m3db/m3/src/integration/resources/docker/dockerexternal"
 	"github.com/m3db/m3/src/msg/generated/proto/topicpb"
 	"github.com/m3db/m3/src/msg/topic"
 	"github.com/m3db/m3/src/query/generated/proto/admin"
 	"github.com/m3db/m3/src/query/generated/proto/prompb"
 	"github.com/m3db/m3/src/query/storage"
+	"github.com/m3db/m3/src/x/instrument"
 	xtime "github.com/m3db/m3/src/x/time"
+	"github.com/ory/dockertest/v3"
 
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/assert"
@@ -40,6 +46,16 @@ import (
 )
 
 func TestNewCoordinator(t *testing.T) {
+	pool, err := dockertest.NewPool("")
+	require.NoError(t, err)
+
+	etcd, err := dockerexternal.NewEtcd(pool, instrument.NewOptions(), dockerexternal.EtcdClusterPort(2379))
+	require.NoError(t, err)
+	require.NoError(t, etcd.Setup(context.TODO()))
+	t.Cleanup(func() {
+		require.NoError(t, etcd.Close(context.TODO()))
+	})
+
 	dbnode, err := NewDBNodeFromYAML(defaultDBNodeConfig, DBNodeOptions{Start: true})
 	require.NoError(t, err)
 	defer func() {
diff --git a/src/integration/resources/inprocess/dbnode_test.go b/src/integration/resources/inprocess/dbnode_test.go
index 4528a7b58a..f08fa81c00 100644
--- a/src/integration/resources/inprocess/dbnode_test.go
+++ b/src/integration/resources/inprocess/dbnode_test.go
@@ -1,4 +1,6 @@
+//go:build test_harness
 // +build test_harness
+
 // Copyright (c) 2021  Uber Technologies, Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/integration/resources/inprocess/inprocess.go b/src/integration/resources/inprocess/inprocess.go
index a7a5af95f2..b0e9711bf0 100644
--- a/src/integration/resources/inprocess/inprocess.go
+++ b/src/integration/resources/inprocess/inprocess.go
@@ -21,7 +21,10 @@
 package inprocess
 
 import (
+	"context"
+
 	"github.com/m3db/m3/src/integration/resources"
+	"github.com/m3db/m3/src/integration/resources/docker/dockerexternal"
 	"github.com/m3db/m3/src/x/errors"
 )
 
@@ -29,11 +32,13 @@ type inprocessM3Resources struct {
 	coordinator resources.Coordinator
 	dbNodes     resources.Nodes
 	aggregators resources.Aggregators
+	etcd        *dockerexternal.EtcdNode
 }
 
 // ResourceOptions are the options for creating new
 // resources.M3Resources.
 type ResourceOptions struct {
+	Etcd        *dockerexternal.EtcdNode
 	Coordinator resources.Coordinator
 	DBNodes     resources.Nodes
 	Aggregators resources.Aggregators
@@ -43,6 +48,7 @@ type ResourceOptions struct {
 // backed by in-process implementations of the M3 components.
 func NewM3Resources(options ResourceOptions) resources.M3Resources {
 	return &inprocessM3Resources{
+		etcd:        options.Etcd,
 		coordinator: options.Coordinator,
 		dbNodes:     options.DBNodes,
 		aggregators: options.Aggregators,
@@ -73,6 +79,11 @@ func (i *inprocessM3Resources) Cleanup() error {
 		err = err.Add(a.Close())
 	}
 
+	if i.etcd != nil {
+		ctx := context.TODO()
+		err = err.Add(i.etcd.Close(ctx))
+	}
+
 	return err.FinalError()
 }
 
diff --git a/src/integration/resources/options.go b/src/integration/resources/options.go
index d980c154f7..88eeddfe95 100644
--- a/src/integration/resources/options.go
+++ b/src/integration/resources/options.go
@@ -1,3 +1,23 @@
+// Copyright (c) 2022 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
 package resources
 
 import (
@@ -8,6 +28,9 @@ import (
 // ClusterOptions contains options for spinning up a new M3 cluster
 // composed of in-process components.
 type ClusterOptions struct {
+	// EtcdEndpoints if provided, will be used directly instead of spinning up a dedicated etcd node for the cluster.
+	// By default, NewClusterFromSpecification will spin up and manage an etcd node itself.
+	EtcdEndpoints []string
 	// DBNode contains cluster options for spinning up dbnodes.
 	DBNode *DBNodeClusterOptions
 	// Aggregator is the optional cluster options for spinning up aggregators.