Golang NewConfigFromFile Examples

Example #1

File: command_validate.go Project: colhom/coreos-kubernetes

func runCmdValidate(cmd *cobra.Command, args []string) {
	cfg, err := config.NewConfigFromFile(ConfigPath)
	if err != nil {
		stderr("Unable to load cluster config: %v", err)
		os.Exit(1)
	}

	if err := cfg.ReadAssetsFromFiles(); err != nil {
		stderr("Error reading assets from files: %v", err)
		os.Exit(1)
	}

	if err := cfg.TemplateAndEncodeAssets(); err != nil {
		stderr("template/encode error: %v", err)
		os.Exit(1)
	}

	cluster := cluster.New(cfg, upOpts.awsDebug)

	report, err := cluster.ValidateStack()

	if report != "" {
		fmt.Printf("Validation Report: %s\n", report)
	}

	if err != nil {
		stderr("Error creating cluster: %v", err)
		os.Exit(1)
	} else {
		fmt.Printf("Validation OK!\n")
	}
}

Example #2

File: command_up.go Project: colhom/coreos-kubernetes

func runCmdUp(cmd *cobra.Command, args []string) {
	cfg, err := config.NewConfigFromFile(ConfigPath)
	if err != nil {
		stderr("Unable to load cluster config: %v", err)
		os.Exit(1)
	}

	if err := cfg.ReadAssetsFromFiles(); err != nil {
		stderr("Error reading assets from files: %v", err)
		os.Exit(1)
	}

	if err := cfg.TemplateAndEncodeAssets(); err != nil {
		stderr("Error templating assets: %v", err)
		os.Exit(1)
	}
	if upOpts.export {
		templatePath := fmt.Sprintf("./%s.stack-template.json", cfg.ClusterName)
		fmt.Printf("Exporting %s\n", templatePath)
		if err := ioutil.WriteFile(templatePath, cfg.StackTemplate.Bytes(), 0600); err != nil {
			stderr("Error writing %s : %v", templatePath, err)
			os.Exit(1)
		}
		fmt.Printf("BEWARE: %s contains your TLS secrets!\n", templatePath)
		os.Exit(0)
	}
	cluster := cluster.New(cfg, upOpts.awsDebug)

	if upOpts.update {
		if err := cluster.Update(); err != nil {
			stderr("Error updating cluster: %v", err)
			os.Exit(1)
		}
	} else {
		if err := cluster.Create(); err != nil {
			stderr("Error creating cluster: %v", err)
			os.Exit(1)
		}
	}

	info, err := cluster.Info()
	if err != nil {
		stderr("Failed fetching cluster info: %v", err)
		os.Exit(1)
	}

	fmt.Print(info.String())

}

Example #3

File: command_destroy.go Project: colhom/coreos-kubernetes

func runCmdDestroy(cmd *cobra.Command, args []string) {
	cfg, err := config.NewConfigFromFile(ConfigPath)
	if err != nil {
		stderr("Error parsing config: %v", err)
		os.Exit(1)
	}

	cluster := cluster.New(cfg, destroyOpts.awsDebug)

	if err := cluster.Destroy(); err != nil {
		stderr("Failed destroying cluster: %v", err)
		os.Exit(1)
	}

	fmt.Println("Destroyed cluster")
}

Example #4

File: command_status.go Project: colhom/coreos-kubernetes

func runCmdStatus(cmd *cobra.Command, args []string) {
	cfg, err := config.NewConfigFromFile(ConfigPath)
	if err != nil {
		stderr("Error parsing config: %v", err)
		os.Exit(1)
	}

	cluster := cluster.New(cfg, false)

	info, err := cluster.Info()
	if err != nil {
		stderr("Failed fetching cluster info: %v", err)
		os.Exit(1)
	}

	fmt.Print(info.String())
}

Example #5

File: command_render.go Project: colhom/coreos-kubernetes

func runCmdRender(cmd *cobra.Command, args []string) {
	cfg, err := config.NewConfigFromFile(ConfigPath)
	if err != nil {
		stderr("Error parsing config from file: %v", err)
		os.Exit(1)
	}

	if err := cfg.GenerateDefaultAssets(); err != nil {
		stderr("Error generating default assets : %v", err)
		os.Exit(1)
	}

	if err := cfg.KubeConfig.Template(cfg); err != nil {
		stderr("Error templating kubeconfig : %v", err)
		os.Exit(1)
	}

	if err := cfg.WriteAssetsToFiles(); err != nil {
		stderr("Error writing assets to file: %v", err)
		os.Exit(1)
	}

	fmt.Printf("Edit %s and/or any of the cluster assets. Then use the \"kube-aws up\" command to create the stack\n", ConfigPath)
}