feat(gkeconnect/gateway): start generating apiv1beta1 (#4235)

diff --git a/gkeconnect/gateway/apiv1beta1/doc.go b/gkeconnect/gateway/apiv1beta1/doc.go
new file mode 100644
index 0000000..7243ccd
--- /dev/null
+++ b/gkeconnect/gateway/apiv1beta1/doc.go
@@ -0,0 +1,119 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
+
+// Package gateway is an auto-generated package for the
+// Connect Gateway API.
+//
+// The Connect Gateway service allows connectivity from external parties to
+// connected Kubernetes clusters.
+//
+//   NOTE: This package is in beta. It is not stable, and may be subject to changes.
+//
+// Use of Context
+//
+// The ctx passed to NewClient is used for authentication requests and
+// for creating the underlying connection, but is not used for subsequent calls.
+// Individual methods on the client use the ctx given to them.
+//
+// To close the open connection, use the Close() method.
+//
+// For information about setting deadlines, reusing contexts, and more
+// please visit https://pkg.go.dev/cloud.google.com/go.
+package gateway // import "cloud.google.com/go/gkeconnect/gateway/apiv1beta1"
+
+import (
+	"context"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+	"unicode"
+
+	"google.golang.org/api/option"
+	"google.golang.org/grpc/metadata"
+)
+
+// For more information on implementing a client constructor hook, see
+// https://github.com/googleapis/google-cloud-go/wiki/Customizing-constructors.
+type clientHookParams struct{}
+type clientHook func(context.Context, clientHookParams) ([]option.ClientOption, error)
+
+const versionClient = "20210609"
+
+func insertMetadata(ctx context.Context, mds ...metadata.MD) context.Context {
+	out, _ := metadata.FromOutgoingContext(ctx)
+	out = out.Copy()
+	for _, md := range mds {
+		for k, v := range md {
+			out[k] = append(out[k], v...)
+		}
+	}
+	return metadata.NewOutgoingContext(ctx, out)
+}
+
+func checkDisableDeadlines() (bool, error) {
+	raw, ok := os.LookupEnv("GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE")
+	if !ok {
+		return false, nil
+	}
+
+	b, err := strconv.ParseBool(raw)
+	return b, err
+}
+
+// DefaultAuthScopes reports the default set of authentication scopes to use with this package.
+func DefaultAuthScopes() []string {
+	return []string{
+		"https://www.googleapis.com/auth/cloud-platform",
+	}
+}
+
+// versionGo returns the Go runtime version. The returned string
+// has no whitespace, suitable for reporting in header.
+func versionGo() string {
+	const develPrefix = "devel +"
+
+	s := runtime.Version()
+	if strings.HasPrefix(s, develPrefix) {
+		s = s[len(develPrefix):]
+		if p := strings.IndexFunc(s, unicode.IsSpace); p >= 0 {
+			s = s[:p]
+		}
+		return s
+	}
+
+	notSemverRune := func(r rune) bool {
+		return !strings.ContainsRune("0123456789.", r)
+	}
+
+	if strings.HasPrefix(s, "go1") {
+		s = s[2:]
+		var prerelease string
+		if p := strings.IndexFunc(s, notSemverRune); p >= 0 {
+			s, prerelease = s[:p], s[p:]
+		}
+		if strings.HasSuffix(s, ".") {
+			s += "0"
+		} else if strings.Count(s, ".") < 2 {
+			s += ".0"
+		}
+		if prerelease != "" {
+			s += "-" + prerelease
+		}
+		return s
+	}
+	return "UNKNOWN"
+}
diff --git a/gkeconnect/gateway/apiv1beta1/gapic_metadata.json b/gkeconnect/gateway/apiv1beta1/gapic_metadata.json
new file mode 100644
index 0000000..40cfe97
--- /dev/null
+++ b/gkeconnect/gateway/apiv1beta1/gapic_metadata.json
@@ -0,0 +1,43 @@
+{
+  "schema": "1.0",
+  "comment": "This file maps proto services/RPCs to the corresponding library clients/methods.",
+  "language": "go",
+  "protoPackage": "google.cloud.gkeconnect.gateway.v1beta1",
+  "libraryPackage": "cloud.google.com/go/gkeconnect/gateway/apiv1beta1",
+  "services": {
+    "GatewayService": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "Client",
+          "rpcs": {
+            "DeleteResource": {
+              "methods": [
+                "DeleteResource"
+              ]
+            },
+            "GetResource": {
+              "methods": [
+                "GetResource"
+              ]
+            },
+            "PatchResource": {
+              "methods": [
+                "PatchResource"
+              ]
+            },
+            "PostResource": {
+              "methods": [
+                "PostResource"
+              ]
+            },
+            "PutResource": {
+              "methods": [
+                "PutResource"
+              ]
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/gkeconnect/gateway/apiv1beta1/gateway_client.go b/gkeconnect/gateway/apiv1beta1/gateway_client.go
new file mode 100644
index 0000000..fdfa650
--- /dev/null
+++ b/gkeconnect/gateway/apiv1beta1/gateway_client.go
@@ -0,0 +1,298 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
+
+package gateway
+
+import (
+	"context"
+	"math"
+
+	gax "github.com/googleapis/gax-go/v2"
+	"google.golang.org/api/option"
+	"google.golang.org/api/option/internaloption"
+	gtransport "google.golang.org/api/transport/grpc"
+	httpbodypb "google.golang.org/genproto/googleapis/api/httpbody"
+	gatewaypb "google.golang.org/genproto/googleapis/cloud/gkeconnect/gateway/v1beta1"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+var newClientHook clientHook
+
+// CallOptions contains the retry settings for each method of Client.
+type CallOptions struct {
+	GetResource    []gax.CallOption
+	PostResource   []gax.CallOption
+	DeleteResource []gax.CallOption
+	PutResource    []gax.CallOption
+	PatchResource  []gax.CallOption
+}
+
+func defaultGRPCClientOptions() []option.ClientOption {
+	return []option.ClientOption{
+		internaloption.WithDefaultEndpoint("connectgateway.googleapis.com:443"),
+		internaloption.WithDefaultMTLSEndpoint("connectgateway.mtls.googleapis.com:443"),
+		internaloption.WithDefaultAudience("https://connectgateway.googleapis.com/"),
+		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
+		option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
+		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
+			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
+	}
+}
+
+func defaultCallOptions() *CallOptions {
+	return &CallOptions{
+		GetResource:    []gax.CallOption{},
+		PostResource:   []gax.CallOption{},
+		DeleteResource: []gax.CallOption{},
+		PutResource:    []gax.CallOption{},
+		PatchResource:  []gax.CallOption{},
+	}
+}
+
+// internalClient is an interface that defines the methods availaible from Connect Gateway API.
+type internalClient interface {
+	Close() error
+	setGoogleClientInfo(...string)
+	Connection() *grpc.ClientConn
+	GetResource(context.Context, *httpbodypb.HttpBody, ...gax.CallOption) (*httpbodypb.HttpBody, error)
+	PostResource(context.Context, *httpbodypb.HttpBody, ...gax.CallOption) (*httpbodypb.HttpBody, error)
+	DeleteResource(context.Context, *httpbodypb.HttpBody, ...gax.CallOption) (*httpbodypb.HttpBody, error)
+	PutResource(context.Context, *httpbodypb.HttpBody, ...gax.CallOption) (*httpbodypb.HttpBody, error)
+	PatchResource(context.Context, *httpbodypb.HttpBody, ...gax.CallOption) (*httpbodypb.HttpBody, error)
+}
+
+// Client is a client for interacting with Connect Gateway API.
+// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
+//
+// Gateway service is a public API which works as a Kubernetes resource model
+// proxy between end users and registered Kubernetes clusters. Each RPC in this
+// service matches with an HTTP verb. End user will initiate kubectl commands
+// against the Gateway service, and Gateway service will forward user requests
+// to clusters.
+type Client struct {
+	// The internal transport-dependent client.
+	internalClient internalClient
+
+	// The call options for this service.
+	CallOptions *CallOptions
+}
+
+// Wrapper methods routed to the internal client.
+
+// Close closes the connection to the API service. The user should invoke this when
+// the client is no longer required.
+func (c *Client) Close() error {
+	return c.internalClient.Close()
+}
+
+// setGoogleClientInfo sets the name and version of the application in
+// the `x-goog-api-client` header passed on each request. Intended for
+// use by Google-written clients.
+func (c *Client) setGoogleClientInfo(keyval ...string) {
+	c.internalClient.setGoogleClientInfo(keyval...)
+}
+
+// Connection returns a connection to the API service.
+//
+// Deprecated.
+func (c *Client) Connection() *grpc.ClientConn {
+	return c.internalClient.Connection()
+}
+
+// GetResource getResource performs an HTTP GET request on the Kubernetes API Server.
+func (c *Client) GetResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	return c.internalClient.GetResource(ctx, req, opts...)
+}
+
+// PostResource postResource performs an HTTP POST on the Kubernetes API Server.
+func (c *Client) PostResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	return c.internalClient.PostResource(ctx, req, opts...)
+}
+
+// DeleteResource deleteResource performs an HTTP DELETE on the Kubernetes API Server.
+func (c *Client) DeleteResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	return c.internalClient.DeleteResource(ctx, req, opts...)
+}
+
+// PutResource putResource performs an HTTP PUT on the Kubernetes API Server.
+func (c *Client) PutResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	return c.internalClient.PutResource(ctx, req, opts...)
+}
+
+// PatchResource patchResource performs an HTTP PATCH on the Kubernetes API Server.
+func (c *Client) PatchResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	return c.internalClient.PatchResource(ctx, req, opts...)
+}
+
+// gRPCClient is a client for interacting with Connect Gateway API over gRPC transport.
+//
+// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
+type gRPCClient struct {
+	// Connection pool of gRPC connections to the service.
+	connPool gtransport.ConnPool
+
+	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
+	disableDeadlines bool
+
+	// Points back to the CallOptions field of the containing Client
+	CallOptions **CallOptions
+
+	// The gRPC API client.
+	client gatewaypb.GatewayServiceClient
+
+	// The x-goog-* metadata to be sent with each request.
+	xGoogMetadata metadata.MD
+}
+
+// NewClient creates a new gateway service client based on gRPC.
+// The returned client must be Closed when it is done being used to clean up its underlying connections.
+//
+// Gateway service is a public API which works as a Kubernetes resource model
+// proxy between end users and registered Kubernetes clusters. Each RPC in this
+// service matches with an HTTP verb. End user will initiate kubectl commands
+// against the Gateway service, and Gateway service will forward user requests
+// to clusters.
+func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
+	clientOpts := defaultGRPCClientOptions()
+	if newClientHook != nil {
+		hookOpts, err := newClientHook(ctx, clientHookParams{})
+		if err != nil {
+			return nil, err
+		}
+		clientOpts = append(clientOpts, hookOpts...)
+	}
+
+	disableDeadlines, err := checkDisableDeadlines()
+	if err != nil {
+		return nil, err
+	}
+
+	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
+	if err != nil {
+		return nil, err
+	}
+	client := Client{CallOptions: defaultCallOptions()}
+
+	c := &gRPCClient{
+		connPool:         connPool,
+		disableDeadlines: disableDeadlines,
+		client:           gatewaypb.NewGatewayServiceClient(connPool),
+		CallOptions:      &client.CallOptions,
+	}
+	c.setGoogleClientInfo()
+
+	client.internalClient = c
+
+	return &client, nil
+}
+
+// Connection returns a connection to the API service.
+//
+// Deprecated.
+func (c *gRPCClient) Connection() *grpc.ClientConn {
+	return c.connPool.Conn()
+}
+
+// setGoogleClientInfo sets the name and version of the application in
+// the `x-goog-api-client` header passed on each request. Intended for
+// use by Google-written clients.
+func (c *gRPCClient) setGoogleClientInfo(keyval ...string) {
+	kv := append([]string{"gl-go", versionGo()}, keyval...)
+	kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
+	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
+}
+
+// Close closes the connection to the API service. The user should invoke this when
+// the client is no longer required.
+func (c *gRPCClient) Close() error {
+	return c.connPool.Close()
+}
+
+func (c *gRPCClient) GetResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append((*c.CallOptions).GetResource[0:len((*c.CallOptions).GetResource):len((*c.CallOptions).GetResource)], opts...)
+	var resp *httpbodypb.HttpBody
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.GetResource(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *gRPCClient) PostResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append((*c.CallOptions).PostResource[0:len((*c.CallOptions).PostResource):len((*c.CallOptions).PostResource)], opts...)
+	var resp *httpbodypb.HttpBody
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.PostResource(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *gRPCClient) DeleteResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append((*c.CallOptions).DeleteResource[0:len((*c.CallOptions).DeleteResource):len((*c.CallOptions).DeleteResource)], opts...)
+	var resp *httpbodypb.HttpBody
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.DeleteResource(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *gRPCClient) PutResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append((*c.CallOptions).PutResource[0:len((*c.CallOptions).PutResource):len((*c.CallOptions).PutResource)], opts...)
+	var resp *httpbodypb.HttpBody
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.PutResource(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *gRPCClient) PatchResource(ctx context.Context, req *httpbodypb.HttpBody, opts ...gax.CallOption) (*httpbodypb.HttpBody, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append((*c.CallOptions).PatchResource[0:len((*c.CallOptions).PatchResource):len((*c.CallOptions).PatchResource)], opts...)
+	var resp *httpbodypb.HttpBody
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.PatchResource(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
diff --git a/gkeconnect/gateway/apiv1beta1/gateway_client_example_test.go b/gkeconnect/gateway/apiv1beta1/gateway_client_example_test.go
new file mode 100644
index 0000000..44b24dd
--- /dev/null
+++ b/gkeconnect/gateway/apiv1beta1/gateway_client_example_test.go
@@ -0,0 +1,131 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
+
+package gateway_test
+
+import (
+	"context"
+
+	gateway "cloud.google.com/go/gkeconnect/gateway/apiv1beta1"
+	httpbodypb "google.golang.org/genproto/googleapis/api/httpbody"
+)
+
+func ExampleNewClient() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	// TODO: Use client.
+	_ = c
+}
+
+func ExampleClient_GetResource() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	req := &httpbodypb.HttpBody{
+		// TODO: Fill request struct fields.
+	}
+	resp, err := c.GetResource(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
+
+func ExampleClient_PostResource() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	req := &httpbodypb.HttpBody{
+		// TODO: Fill request struct fields.
+	}
+	resp, err := c.PostResource(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
+
+func ExampleClient_DeleteResource() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	req := &httpbodypb.HttpBody{
+		// TODO: Fill request struct fields.
+	}
+	resp, err := c.DeleteResource(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
+
+func ExampleClient_PutResource() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	req := &httpbodypb.HttpBody{
+		// TODO: Fill request struct fields.
+	}
+	resp, err := c.PutResource(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
+
+func ExampleClient_PatchResource() {
+	ctx := context.Background()
+	c, err := gateway.NewClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	defer c.Close()
+
+	req := &httpbodypb.HttpBody{
+		// TODO: Fill request struct fields.
+	}
+	resp, err := c.PatchResource(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
diff --git a/internal/.repo-metadata-full.json b/internal/.repo-metadata-full.json
index 1d6696e..13bb34a 100644
--- a/internal/.repo-metadata-full.json
+++ b/internal/.repo-metadata-full.json
@@ -575,6 +575,15 @@
     "release_level": "beta",
     "library_type": ""
   },
+  "cloud.google.com/go/gkeconnect/gateway/apiv1beta1": {
+    "distribution_name": "cloud.google.com/go/gkeconnect/gateway/apiv1beta1",
+    "description": "Connect Gateway API",
+    "language": "Go",
+    "client_library_type": "generated",
+    "docs_url": "https://cloud.google.com/go/docs/reference/cloud.google.com/go/latest/gkeconnect/gateway/apiv1beta1",
+    "release_level": "beta",
+    "library_type": ""
+  },
   "cloud.google.com/go/gkehub/apiv1beta1": {
     "distribution_name": "cloud.google.com/go/gkehub/apiv1beta1",
     "description": "GKE Hub",
diff --git a/internal/gapicgen/cmd/genbot/Dockerfile b/internal/gapicgen/cmd/genbot/Dockerfile
index 23043f1..5157514 100644
--- a/internal/gapicgen/cmd/genbot/Dockerfile
+++ b/internal/gapicgen/cmd/genbot/Dockerfile
@@ -28,7 +28,7 @@
     golang.org/x/lint/golint@latest \
     golang.org/x/tools/cmd/goimports@latest \
     honnef.co/go/tools/cmd/staticcheck@latest \
-    github.com/googleapis/gapic-generator-go/cmd/protoc-gen-go_gapic@v0.20.1
+    github.com/googleapis/gapic-generator-go/cmd/protoc-gen-go_gapic@v0.20.2
 ENV PATH="${PATH}:/root/go/bin"
 
 # Source: http://debuggable.com/posts/disable-strict-host-checking-for-git-clone:49896ff3-0ac0-4263-9703-1eae4834cda3
diff --git a/internal/gapicgen/generator/config.go b/internal/gapicgen/generator/config.go
index 733c111..17afd1b 100644
--- a/internal/gapicgen/generator/config.go
+++ b/internal/gapicgen/generator/config.go
@@ -1160,6 +1160,14 @@
 		// GA after 2021/07/03
 		releaseLevel: "beta",
 	},
+	{
+		inputDirectoryPath:    "google/cloud/gkeconnect/gateway/v1beta1",
+		pkg:                   "gateway",
+		importPath:            "cloud.google.com/go/gkeconnect/gateway/apiv1beta1",
+		gRPCServiceConfigPath: "google/cloud/gkeconnect/gateway/v1beta1/connectgw_grpc_service_config.json",
+		apiServiceConfigPath:  "google/cloud/gkeconnect/gateway/v1beta1/connectgateway_v1beta1.yaml",
+		releaseLevel:          "beta",
+	},
 
 	// Non-Cloud APIs
 	{