Updated the install command UX (#1118)

cli/cmd/install.go

@@ -1,8 +1,11 @@
 package cmd
 
 import (
+	"github.com/creasty/defaults"
 	"github.com/spf13/cobra"
+	"github.com/up9inc/mizu/cli/config/configStructs"
 	"github.com/up9inc/mizu/cli/telemetry"
+	"github.com/up9inc/mizu/logger"
 )
 
 var installCmd = &cobra.Command{
@@ -17,4 +20,11 @@ var installCmd = &cobra.Command{
 
 func init() {
 	rootCmd.AddCommand(installCmd)
+
+	defaultInstallConfig := configStructs.InstallConfig{}
+	if err := defaults.Set(&defaultInstallConfig); err != nil {
+		logger.Log.Debug(err)
+	}
+
+	installCmd.Flags().BoolP(configStructs.OutInstallName, "o", defaultInstallConfig.Out, "print (to stdout) Kubernetes manifest used to install Mizu Pro edition")
 }

cli/cmd/installRunner.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
 
 	"github.com/up9inc/mizu/cli/bucket"
 	"github.com/up9inc/mizu/cli/config"
@@ -9,6 +10,7 @@ import (
 )
 
 func runMizuInstall() {
+	if config.Config.Install.Out {
 		bucketProvider := bucket.NewProvider(config.Config.Install.TemplateUrl, bucket.DefaultTimeout)
 		installTemplate, err := bucketProvider.GetInstallTemplate(config.Config.Install.TemplateName)
 		if err != nil {
@@ -17,4 +19,14 @@ func runMizuInstall() {
 		}
 
 		fmt.Print(installTemplate)
+		return
+	}
+
+	var sb strings.Builder
+	sb.WriteString("Hello! This command can be used to install Mizu Pro edition on your Kubernetes cluster.")
+	sb.WriteString("\nPlease run:")
+	sb.WriteString("\n\tmizu install -o | kubectl apply -f -")
+	sb.WriteString("\n\nor use helm chart as described in https://getmizu.io/docs/installing-mizu/centralized-installation\n")
+
+	fmt.Print(sb.String())
 }

cli/config/configStructs/installConfig.go

@@ -1,6 +1,11 @@
 package configStructs
 
+const (
+	OutInstallName = "out"
+)
+
 type InstallConfig struct {
 	TemplateUrl  string `yaml:"template-url" default:"https://storage.googleapis.com/static.up9.io/mizu/helm-template"`
 	TemplateName string `yaml:"template-name" default:"helm-template.yaml"`
+	Out          bool   `yaml:"out"`
 }