Merge pull request #99 from onepanelio/feat/microk8s.command

feat: detect microk8s provider in apply/app status

Author: Vafilor

cmd/app.go

@@ -32,8 +32,31 @@ var statusCmd = &cobra.Command{
 			fmt.Println("Error parsing configuration file.")
 			return
 		}
+
 		ready, err := util.DeploymentStatus(yamlFile)
 		if err != nil {
+			yamlFile, yamlErr := util.LoadDynamicYamlFromFile(config.Spec.Params)
+			if yamlErr != nil {
+				fmt.Printf("Error reading file '%v' %v", config.Spec.Params, yamlErr.Error())
+				return
+			}
+
+			flatMap := yamlFile.FlattenToKeyValue(util.AppendDotFlatMapKeyFormatter)
+			provider, providerErr := util.GetYamlStringValue(flatMap, "application.provider")
+			if providerErr != nil {
+				fmt.Printf("Unable to read application.provider from params.yaml %v", providerErr.Error())
+				return
+			}
+			if provider == nil {
+				fmt.Printf("application.provider is not set in params.yaml")
+				return
+			}
+
+			if *provider == "microk8s" {
+				fmt.Printf("Unable to connect to cluster. Make sure you are running with \nKUBECONFIG=./kubeconfig opctl app status\nError: %v", err.Error())
+				return
+			}
+
 			fmt.Println(err.Error())
 			return
 		}

cmd/apply.go

@@ -75,17 +75,40 @@ var applyCmd = &cobra.Command{
 		resApp := ""
 		errResApp := ""
 
+
 		resApp, errResApp, err = applyKubernetesFile(applicationKubernetesYamlFilePath)
+		if err != nil {
+			yamlFile, yamlErr := util.LoadDynamicYamlFromFile(config.Spec.Params)
+			if yamlErr != nil {
+				fmt.Printf("Error reading file '%v' %v", config.Spec.Params, yamlErr.Error())
+				return
+			}
+
+			flatMap := yamlFile.FlattenToKeyValue(util.AppendDotFlatMapKeyFormatter)
+			provider, providerErr := util.GetYamlStringValue(flatMap, "application.provider")
+			if providerErr != nil {
+				fmt.Printf("Unable to read application.provider from params.yaml %v", providerErr.Error())
+				return
+			}
+			if provider == nil {
+				fmt.Printf("application.provider is not set in params.yaml")
+				return
+			}
+
+			if *provider == "microk8s" {
+				fmt.Printf("Unable to connect to cluster. Make sure you are running with \nKUBECONFIG=./kubeconfig opctl apply\nError: %v", err.Error())
+				return
+			}
+
+			fmt.Printf("\nFailed: %v", err.Error())
+			return
+		}
 
 		log.Printf("res: %v", resApp)
 		if errResApp != "" {
 			log.Printf("err: %v", errResApp)
 		}
 
-		if err != nil {
-			fmt.Printf("\nFailed: %v", err.Error())
-			return
-		}
 		//Once applied, verify the application is running before moving on with the rest
 		//of the yaml.
 		applicationRunning := false

cmd/auth.go

@@ -4,6 +4,7 @@ import (
 	"crypto/md5"
 	"encoding/hex"
 	"fmt"
+	opConfig "github.com/onepanelio/cli/config"
 
 	"github.com/onepanelio/cli/util"
 	"github.com/spf13/cobra"
@@ -29,12 +30,45 @@ var tokenCmd = &cobra.Command{
 	Long:    "Get a token for a given provider. Google Cloud Platform is different from minikube, for example.",
 	Example: "auth token",
 	Run: func(cmd *cobra.Command, args []string) {
-		config := util.NewConfig()
+		config, err := util.NewConfig()
+		if err != nil {
+			fmt.Printf("Error getting kubernetes configuration: %v", err.Error())
+			return
+		}
+
 		if ServiceAccountName == "" {
 			ServiceAccountName = "admin"
 		}
 		token, username, err := util.GetBearerToken(config, "", ServiceAccountName)
 		if err != nil {
+			configFilePath := "config.yaml"
+			opConfig, opErr := opConfig.FromFile(configFilePath)
+			if opErr != nil {
+				fmt.Printf("Unable to read configuration file: %v", err.Error())
+				return
+			}
+			yamlFile, yamlErr := util.LoadDynamicYamlFromFile(opConfig.Spec.Params)
+			if yamlErr != nil {
+				fmt.Printf("Error reading file '%v' %v", opConfig.Spec.Params, yamlErr.Error())
+				return
+			}
+
+			flatMap := yamlFile.FlattenToKeyValue(util.AppendDotFlatMapKeyFormatter)
+			provider, providerErr := util.GetYamlStringValue(flatMap, "application.provider")
+			if providerErr != nil {
+				fmt.Printf("Unable to read application.provider from params.yaml %v", providerErr.Error())
+				return
+			}
+			if provider == nil {
+				fmt.Printf("application.provider is not set in params.yaml")
+				return
+			}
+
+			if *provider == "microk8s" {
+				fmt.Printf("Make sure you are running with \nKUBECONFIG=./kubeconfig opctl auth token\nError: %v", err.Error())
+				return
+			}
+
 			fmt.Printf("Error encountered for user %s: %s\n", username, err.Error())
 		}
 

util/dynamic_yaml.go

@@ -745,3 +745,22 @@ func NodeValueToActual(node *yaml.Node) (interface{}, error) {
 
 	return value, nil
 }
+
+// GetYamlStringValue will attempt to get the key from the input mapping and return it as a lowercase string
+// If the key does not exist, nil is returned, with no error
+// If the value exists, but is not a string, an error is returned
+func GetYamlStringValue(mapping map[string]interface{}, key string) (*string, error) {
+	value, ok := mapping[key]
+	if !ok {
+		return nil, nil
+	}
+
+	valueString, okString := value.(string)
+	if !okString {
+		return nil, fmt.Errorf("value is not a string")
+	}
+
+	result := strings.ToLower(valueString)
+
+	return &result, nil
+}

util/kubeconfig.go

@@ -16,12 +16,9 @@ import (
 
 type Config = restclient.Config
 
-func NewConfig() (config *Config) {
-	config, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
+func NewConfig() (config *Config, err error) {
+	config, err = clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
 		clientcmd.NewDefaultClientConfigLoadingRules(), &clientcmd.ConfigOverrides{}).ClientConfig()
-	if err != nil {
-		panic(err)
-	}
 
 	return
 }

util/kubectl.go

@@ -256,6 +256,7 @@ func GetClusterIp(url string) {
 				hostsPath = "C:\\Windows\\System32\\Drivers\\etc\\hosts"
 			}
 
+			dnsRecordMessage = "local"
 			fmt.Printf("\nIn your %v file, add %v and point it to %v\n", hostsPath, stdout, fqdn)
 		} else {
 			dnsRecordMessage = "an A"