Make node version customizable (QubitPi#42)

.web-docs/components/provisioner/react/README.md

@@ -31,6 +31,7 @@ The `react` provisioner is used to install a compiled React-based APP in AWS AMI
 
 **Optional**
 
+- `nodeVersion` (string) - The Node.js version running the React app; default to "18"
 - `homeDir` (string) - The `$Home` directory in AMI image; default to `/home/ubuntu`
 
 <!--

docs/provisioners/react.mdx

@@ -34,6 +34,7 @@ The `react` provisioner is used to install a compiled React-based APP in AWS AMI
 
 **Optional**
 
+- `nodeVersion` (string) - The Node.js version running the React app; default to "18"
 - `homeDir` (string) - The `$Home` directory in AMI image; default to `/home/ubuntu`
 
 <!--

provisioner/react/provisioner.go

@@ -20,14 +20,18 @@ import (
 	"text/template"
 )
 
-// PORT Default port of Sonatype Nexus
+// PORT Default port of React app
 const PORT string = "3000"
 
+// NODE_VERSION Default node version running the React app
+const NODE_VERSION = "18"
+
 type Config struct {
 	DistSource       string `mapstructure:"distSource" required:"true"`
 	SslCertBase64    string `mapstructure:"sslCertBase64" required:"true"`
 	SslCertKeyBase64 string `mapstructure:"sslCertKeyBase64" required:"true"`
 	AppDomain        string `mapstructure:"appDomain" required:"true"`
+	NodeVersion      string `mapstructure:"nodeVersion" required:"false"`
 	HomeDir          string `mapstructure:"homeDir" required:"false"`
 
 	ctx interpolate.Context
@@ -59,7 +63,10 @@ func (p *Provisioner) Provision(ctx context.Context, ui packersdk.Ui, communicat
 		return err
 	}
 
-	err = shell.Provision(ctx, ui, communicator, getCommands())
+	if p.config.NodeVersion == "" {
+		p.config.NodeVersion = NODE_VERSION
+	}
+	err = shell.Provision(ctx, ui, communicator, getCommands(p.config.NodeVersion))
 	if err != nil {
 		return err
 	}
@@ -125,8 +132,8 @@ server {
 	return buf.String()
 }
 
-func getCommands() []string {
-	return append(getCommandsUpdatingUbuntu(), getCommandsInstallingNode()...)
+func getCommands(nodeVersion string) []string {
+	return append(getCommandsUpdatingUbuntu(), getCommandsInstallingNode(nodeVersion)...)
 }
 
 func getCommandsUpdatingUbuntu() []string {
@@ -136,14 +143,12 @@ func getCommandsUpdatingUbuntu() []string {
 	}
 }
 
-func getCommandsInstallingNode() []string {
+func getCommandsInstallingNode(nodeVersion string) []string {
 	return []string{
 		"sudo apt install -y curl",
-		"curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash -",
+		fmt.Sprintf("curl -fsSL https://deb.nodesource.com/setup_%s.x | sudo -E bash -", nodeVersion),
 		"sudo apt install -y nodejs",
-
 		"sudo npm install -g yarn",
-
 		"sudo npm install -g serve",
 	}
 }

provisioner/react/provisioner_test.go

@@ -0,0 +1,27 @@
+// Copyright (c) Jiaqi Liu
+// SPDX-License-Identifier: MPL-2.0
+
+package react
+
+import (
+	"reflect"
+	"testing"
+)
+
+func Test_getCommandsInstallingNode(t *testing.T) {
+	actualCommands := getCommandsInstallingNode("18")
+
+	expectedCommands := []string{
+		"sudo apt install -y curl",
+		"curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -",
+		"sudo apt install -y nodejs",
+
+		"sudo npm install -g yarn",
+
+		"sudo npm install -g serve",
+	}
+
+	if !reflect.DeepEqual(expectedCommands, actualCommands) {
+		t.Errorf("Expected and actual commands do not match: %s\n\n%s", expectedCommands, actualCommands)
+	}
+}