{{ $gateway := index .Values "gateways" "istio-egressgateway" }}
{{- if and $gateway.autoscaleEnabled $gateway.autoscaleMin $gateway.autoscaleMax }}
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: {{ $gateway.name }}
  namespace: {{ .Release.Namespace }}
  labels:
{{ $gateway.labels | toYaml | indent 4 }}
    release: {{ .Release.Name }}
    istio.io/rev: {{ .Values.revision | default "default" | quote }}

[[sec:build_script]]
== Build scripts

The build script is either a `build.gradle` file written in Groovy or a `build.gradle.kts` file in Kotlin.

The link:{groovyDslPath}/index.html[Groovy DSL^] and the link:{kotlinDslPath}/index.html[Kotlin DSL^] are the only accepted languages for Gradle scripts.

Let's take a look at an example and break it down:

====
[.multi-language-sample]
=====
.build.gradle.kts

diff --git a/bits/utmp.h b/bits/utmp.h
index 775123d..bf28c6d 100644
--- a/bits/utmp.h
+++ b/bits/utmp.h
@@ -1,5 +1,5 @@
-/* The `struct utmp' type, describing entries in the utmp file.  Generic/BSDish
-   Copyright (C) 1993, 1996, 1997 Free Software Foundation, Inc.
+/* The `struct utmp' type, describing entries in the utmp file.
+   Copyright (C) 1993-2022 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 

apiVersion: release-notes/v2
kind: feature
area: traffic-management

releaseNotes:
- |

index 0 1 1 0 0 0 0 chapter toc,title Version - © Gradle Inc. 2021 All rights reserved. .cls-1 { fill: #02303a; } gradle Careers | Privacy | Terms of Service | Contact User Manual Home DSL Reference Home Release Notes User Manual Home DSL Reference Home Release Notes signature : :...

            {{- end }}
            service.istio.io/canonical-name: {{ index .ObjectMeta.Labels `service.istio.io/canonical-name` | default (index .ObjectMeta.Labels `app.kubernetes.io/name`) | default (index .ObjectMeta.Labels `app`) | default .DeploymentMeta.Name  | quote }}

{{ $gateway := index .Values "gateways" "istio-ingressgateway" }}
{{- if not $gateway.customService }}
apiVersion: v1
kind: Service
metadata:
  name: {{ $gateway.name }}
  namespace: {{ .Release.Namespace }}
  annotations:
    {{- range $key, $val := $gateway.serviceAnnotations }}
    {{ $key }}: {{ $val | quote }}
    {{- end }}
  labels:
{{ $gateway.labels | toYaml | indent 4 }}
    release: {{ .Release.Name }}

              "id": "'${NODE_ID}'",
              "metadata": {
                "GENERATOR": "grpc"
              }
            }
          }' > /var/lib/grpc/data/bootstrap.json
  containers:
  {{- range $index, $container := .Spec.Containers }}
  - name: {{ $container.Name }}
    env:
      - name: GRPC_XDS_BOOTSTRAP
        value: /var/lib/grpc/data/bootstrap.json
      - name: GRPC_GO_LOG_VERBOSITY_LEVEL
        value: "99"

        heritage: Tiller
        release: istio
        chart: gateways
{{- end }}
        service.istio.io/canonical-name: {{ $gateway.name }}
        service.istio.io/canonical-revision: {{ index $gateway.labels "app.kubernetes.io/version" | default (index $gateway.labels "version") | default .Values.revision | default "latest" | quote }}
        istio.io/rev: {{ .Values.revision | default "default" | quote }}

// H7 = h + H7

// Wt = Mt; for 0 <= t <= 15
#define MSGSCHEDULE0(index) \
	MOVL	(index*4)(SI), AX; \
	BSWAPL	AX; \
	MOVL	AX, (index*4)(BP)

// Wt = SIGMA1(Wt-2) + Wt-7 + SIGMA0(Wt-15) + Wt-16; for 16 <= t <= 63
//   SIGMA0(x) = ROTR(7,x) XOR ROTR(18,x) XOR SHR(3,x)
//   SIGMA1(x) = ROTR(17,x) XOR ROTR(19,x) XOR SHR(10,x)
#define MSGSCHEDULE1(index) \
	MOVL	((index-2)*4)(BP), AX; \
	MOVL	AX, CX; \
	RORL	$17, AX; \
	MOVL	CX, DX; \