changed to bool

Signed-off-by: Foysal Iqbal <mqb@qlik.com>

action_about.md

@@ -1,41 +0,0 @@
-# qliksense about
-
-About action will display inside information regarding [qliksense-k8](https://github.com/qlik-oss/qliksense-k8s) release.
-
-it will support following flags
-
-- `qliksense about 1.0.0` display default profile for tag `1.0.0`.
-- `qliksense about 1.0.0 --profile=docker-desktop`
-- `qliksense about` 
-  - assuming current directory has `manifests/docker-desktop`
-  - or get version information from pull of `qliksense-k8s` `master`
-
-using other supported commands user might have built the CR into the location `~/.qliksense/myqliksense.yaml`
-
-```yaml
-apiVersion: qlik.com/v1
-kind: QlikSense
-metadata:
-  name: myqliksense
-spec:
-  profile: docker-desktop
-  manifestsRoot: /Usr/ddd/my-k8-repo/manifests
-  namespace: myqliksense
-  storageClassName: efs
-  configs:
-    qliksense:
-    - name: acceptEULA
-      value: "yes"
-  secrets:
-    qliksense:
-    - name: mongoDbUri
-      value: "mongo://mongo:3307"
-    - name: messagingPassword
-      valueFromKey: messagingPassword
-```
-
-In that case the command would be
-
-- `qliksense about`
-   - display from `/Usr/ddd/my-k8-repo/manifests/docker-desktop` location
-   - pull from `master` if directory invalid/empty

action_config.md

@@ -1,34 +0,0 @@
-# qliksense config
-
-Config action will perform operations on configurations and contexts regarding the [qliksense-k8](https://github.com/qlik-oss/qliksense-k8s) release.
-
-it will support following commands:
-
-- `qliksense config apply` - generate the patchs and apply manifests to k8s
-- `qliksense config list-contexts` - retrieves the contexts and lists them
-- `qliksense config set` - configure a key value pair into the current context
-- `qliksense config set-configs` - set configurations into the qliksense context as key-value pairs
-- `qliksense config set-context` - sets the context in which the Kubernetes cluster and resources live in
-- `qliksense config set-secrets <service_name>.<attribute>="<value>" --secret=false` - set secrets configurations into the qliksense context as key-value pairs and show encrypted value as part of CR
-- `qliksense config set-secrets <service_name>.<attribute>="<value>" --secret=true` - set secrets configurations into the qliksense context as key-value pairs and show a key reference to the created Kubernetes secret resource as part of the CR
-- `qliksense config view` - view the qliksense operator CR
-- `qliksense config delete-context` - deletes a specific context locally (not in-cluster). Deletes context in spec of `config.yaml` and locally deletes entire folder of specified context (does not delete in-cluster secrets)
-
-
-the global file that abstracts all the contexts is `config.yaml`, located at:  `~/.qliksense/config.yaml`:
-```yaml
-apiVersion: config.qlik.com/v1
-kind: QliksenseConfig
-metadata:
-  name: QliksenseConfigMetadata
-spec:
-  contexts:
-  - name: qlik-default
-    crFile: /Users/fff/.qliksense/contexts/qlik-default/qlik-default.yaml
-  - name: myqliksense
-    crFile: /Users/fff/.qliksense/contexts/myqliksense/myqliksense.yaml
-  - name: hello
-    crFile: /Users/fff/.qliksense/contexts/hello/hello.yaml
-  currentContext: hello
-```
-

cmd/qliksense/apply.go

@@ -1,39 +1,37 @@
 package main
 
 import (
-	"os"
+	"io"
 
-	"github.com/pkg/errors"
 	"github.com/qlik-oss/sense-installer/pkg/qliksense"
 	"github.com/spf13/cobra"
 )
 
 func applyCmd(q *qliksense.Qliksense) *cobra.Command {
-
+	opts := &qliksense.InstallCommandOptions{}
 	filePath := ""
+	keepPatchFiles := false
 	c := &cobra.Command{
 		Use:     "apply",
 		Short:   "install qliksense based on provided cr file",
 		Long:    `install qliksense based on provided cr file`,
 		Example: `qliksense apply -f file_name or cat cr_file | qliksense apply -f -`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if filePath == "-" {
-				if !isInputFromPipe() {
-					return errors.New("No input pipe present")
-				}
-				return q.ApplyCRFromReader(os.Stdin)
-			}
-			file, e := os.Open(filePath)
-			if e != nil {
-				return errors.Wrapf(e,
-					"unable to read the file %s", filePath)
-			}
-			return q.ApplyCRFromReader(file)
+			return runLoadOrApplyCommandE(cmd, func(reader io.Reader) error {
+				return q.ApplyCRFromReader(reader, opts, keepPatchFiles, true)
+			})
 		},
 	}
 
 	f := c.Flags()
 	f.StringVarP(&filePath, "file", "f", "", "Install from a CR file")
 	c.MarkFlagRequired("file")
+	f.StringVarP(&opts.StorageClass, "storageClass", "s", "", "Storage class for qliksense")
+	f.StringVarP(&opts.MongoDbUri, "mongoDbUri", "m", "", "mongoDbUri for qliksense (i.e. mongodb://qlik-default-mongodb:27017/qliksense?ssl=false)")
+	f.StringVarP(&opts.RotateKeys, "rotateKeys", "r", "", "Rotate JWT keys for qliksense (yes:rotate keys/ no:use exising keys from cluster/ None: use default EJSON_KEY from env")
+	f.BoolVar(&keepPatchFiles, keepPatchFilesFlagName, keepPatchFiles, keepPatchFilesFlagUsage)
+
+	eulaPreRunHooks.addValidator(c.Name(), loadOrApplyCommandEulaPreRunHook)
+
 	return c
 }

cmd/qliksense/context.go

@@ -115,15 +115,18 @@ func deleteContextConfigCmd(q *qliksense.Qliksense) *cobra.Command {
 	var (
 		cmd *cobra.Command
 	)
-
+	skipConfirmation := false
 	cmd = &cobra.Command{
 		Use:     "delete-context",
 		Short:   "deletes a specific context locally (not in-cluster)",
 		Example: `qliksense config delete-contexts <context_name>`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return q.DeleteContextConfig(args)
+			return q.DeleteContextConfig(args, skipConfirmation)
 		},
 	}
+	f := cmd.Flags()
+
+	f.BoolVar(&skipConfirmation, "yes", skipConfirmation, "skips confirmation")
 	return cmd
 }
 

cmd/qliksense/eula.go

@@ -1,47 +1,106 @@
 package main
 
 import (
-	"bufio"
 	"fmt"
 	"os"
 	"strings"
 
+	"github.com/mattn/go-tty"
 	qapi "github.com/qlik-oss/sense-installer/pkg/api"
 	"github.com/qlik-oss/sense-installer/pkg/qliksense"
+	"github.com/spf13/cobra"
 )
 
-var eulaEnforced = false
-var eulaText = "EULA text goes here..."
-var eulaPrompt = "Do you accept our EULA? (y/n): "
-var eulaErrorInstruction = "You must enter y/yes to continue"
-
-func isEulaEnforced() bool {
-	return eulaEnforced
+type eulaPreRunHooksT struct {
+	validators              map[string]func(cmd *cobra.Command, q *qliksense.Qliksense) (bool, error)
+	postValidationArtifacts map[string]interface{}
 }
 
-func enforceEula(q *qliksense.Qliksense) {
-	if isEulaEnforced() {
-		if qConfig, err := qapi.NewQConfigE(q.QliksenseHome); err != nil {
-			doEnforceEula()
-		} else if qcr, err := qConfig.GetCurrentCR(); err != nil || !qcr.IsEULA() {
-			doEnforceEula()
+func (e *eulaPreRunHooksT) addValidator(command string, validator func(cmd *cobra.Command, q *qliksense.Qliksense) (bool, error)) {
+	e.validators[command] = validator
+}
+
+func (e *eulaPreRunHooksT) getValidator(command string) func(cmd *cobra.Command, q *qliksense.Qliksense) (bool, error) {
+	if validator, ok := e.validators[command]; ok {
+		return validator
+	}
+	return nil
+}
+
+func (e *eulaPreRunHooksT) addPostValidationArtifact(artifactName string, artifact interface{}) {
+	e.postValidationArtifacts[artifactName] = artifact
+}
+
+func (e *eulaPreRunHooksT) getPostValidationArtifact(artifactName string) interface{} {
+	if artifact, ok := e.postValidationArtifacts[artifactName]; ok {
+		return artifact
+	}
+	return nil
+}
+
+var eulaEnforced = os.Getenv("QLIKSENSE_EULA_ENFORCE") == "true"
+var eulaText = "Please read the end user license agreement at: https://www.qlik.com/us/legal/license-terms"
+var eulaPrompt = "Do you accept our EULA? (y/n): "
+var eulaErrorInstruction = `You must enter "y" to continue`
+var eulaPreRunHooks = eulaPreRunHooksT{
+	validators:              make(map[string]func(cmd *cobra.Command, q *qliksense.Qliksense) (bool, error)),
+	postValidationArtifacts: make(map[string]interface{}),
+}
+
+func commandAlwaysRequiresEulaAcceptance(commandName string) bool {
+	return commandName == "install" || commandName == "upgrade" || commandName == "apply"
+}
+
+func globalEulaPreRun(cmd *cobra.Command, q *qliksense.Qliksense) {
+	if isEulaEnforced(cmd.Name()) {
+		if strings.TrimSpace(strings.ToLower(cmd.Flag("acceptEULA").Value.String())) != "yes" {
+			if eulaPreRunHook := eulaPreRunHooks.getValidator(cmd.Name()); eulaPreRunHook != nil {
+				if eulaAccepted, err := eulaPreRunHook(cmd, q); err != nil {
+					panic(err)
+				} else if !eulaAccepted {
+					doEnforceEula()
+				}
+			} else if qConfig, err := qapi.NewQConfigE(q.QliksenseHome); err != nil {
+				doEnforceEula()
+			} else if qcr, err := qConfig.GetCurrentCR(); err != nil || !qcr.IsEULA() {
+				doEnforceEula()
+			}
 		}
 	}
 }
 
+func globalEulaPostRun(cmd *cobra.Command, q *qliksense.Qliksense) {
+	if isEulaEnforced(cmd.Name()) {
+		if err := q.SetEulaAccepted(); err != nil {
+			panic(err)
+		}
+	}
+}
+
+func isEulaEnforced(commandName string) bool {
+	return eulaEnforced || commandAlwaysRequiresEulaAcceptance(commandName)
+}
+
 func doEnforceEula() {
 	fmt.Println(eulaText)
 	fmt.Print(eulaPrompt)
-	scanner := bufio.NewScanner(os.Stdin)
-	scanSuccess := scanner.Scan()
-	if !scanSuccess {
-		fmt.Println(eulaErrorInstruction)
-		os.Exit(1)
-	}
-	line := scanner.Text()
-	answer := strings.ToLower(strings.TrimSpace(line))
-	if answer != "y" && answer != "yes" {
+	answer := readRuneFromTty()
+	fmt.Printf("%v\n", answer)
+	if strings.ToLower(answer) != "y" {
 		fmt.Println(eulaErrorInstruction)
 		os.Exit(1)
 	}
 }
+
+func readRuneFromTty() string {
+	t, err := tty.Open()
+	if err != nil {
+		panic(err)
+	}
+	defer t.Close()
+	answer, err := t.ReadRune()
+	if err != nil {
+		panic(err)
+	}
+	return string(answer)
+}

cmd/qliksense/install.go

@@ -14,18 +14,19 @@ func installCmd(q *qliksense.Qliksense) *cobra.Command {
 		Long:    `install a qliksense release`,
 		Example: `qliksense install <version> #if no version provides, expect manifestsRoot is set somewhere in the file system`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if len(args) == 0 {
-				return q.InstallQK8s("", opts, keepPatchFiles)
+			version := ""
+			if len(args) != 0 {
+				version = args[0]
 			}
-			return q.InstallQK8s(args[0], opts, keepPatchFiles)
+			return q.InstallQK8s(version, opts, keepPatchFiles)
 		},
 	}
 
 	f := c.Flags()
-	f.StringVarP(&opts.AcceptEULA, "acceptEULA", "a", "", "AcceptEULA for qliksense")
 	f.StringVarP(&opts.StorageClass, "storageClass", "s", "", "Storage class for qliksense")
 	f.StringVarP(&opts.MongoDbUri, "mongoDbUri", "m", "", "mongoDbUri for qliksense (i.e. mongodb://qlik-default-mongodb:27017/qliksense?ssl=false)")
 	f.StringVarP(&opts.RotateKeys, "rotateKeys", "r", "", "Rotate JWT keys for qliksense (yes:rotate keys/ no:use exising keys from cluster/ None: use default EJSON_KEY from env")
 	f.BoolVar(&keepPatchFiles, keepPatchFilesFlagName, keepPatchFiles, keepPatchFilesFlagUsage)
+
 	return c
 }

cmd/qliksense/load.go

@@ -1,6 +1,9 @@
 package main
 
 import (
+	"bytes"
+	"io"
+	"io/ioutil"
 	"os"
 
 	"github.com/pkg/errors"
@@ -10,32 +13,72 @@ import (
 
 func loadCrFile(q *qliksense.Qliksense) *cobra.Command {
 	filePath := ""
+	overwriteExistingContext := false
 	c := &cobra.Command{
-		Use:   "load",
-		Short: "load a CR a file and create necessary structure for future use",
-		Long:  `load a CR a file and create necessary structure for future use`,
+		Use:     "load",
+		Short:   "load a CR a file and create necessary structure for future use",
+		Long:    `load a CR a file and create necessary structure for future use`,
+		Example: `qliksense load -f file_name or cat cr_file | qliksense load -f -`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if filePath == "-" {
-				if !isInputFromPipe() {
-					return errors.New("No input pipe present")
-				}
-				return q.LoadCr(os.Stdin)
-			}
-			file, e := os.Open(filePath)
-			if e != nil {
-				return errors.Wrapf(e,
-					"unable to read the file %s", filePath)
-			}
-			return q.LoadCr(file)
+			return runLoadOrApplyCommandE(cmd, func(reader io.Reader) error {
+				return q.LoadCr(reader, overwriteExistingContext)
+			})
 		},
 	}
 	f := c.Flags()
-	f.StringVarP(&filePath, "file", "f", "", "File to laod CR from")
+	f.StringVarP(&filePath, "file", "f", "", "File to load CR from")
 	c.MarkFlagRequired("file")
+	f.BoolVarP(&overwriteExistingContext, "overwrite", "o", overwriteExistingContext, "Overwrite any existing contexts with the same name")
+
+	eulaPreRunHooks.addValidator(c.Name(), loadOrApplyCommandEulaPreRunHook)
 	return c
 }
 
+func getCrFileFromFlag(cmd *cobra.Command, flagName string) (*os.File, error) {
+	filePath := cmd.Flag(flagName).Value.String()
+	if filePath == "-" {
+		if !isInputFromPipe() {
+			return nil, errors.New("No input pipe present")
+		}
+		return os.Stdin, nil
+	}
+	file, e := os.Open(filePath)
+	if e != nil {
+		return nil, errors.Wrapf(e,
+			"unable to read the file %s", filePath)
+	}
+	return file, nil
+}
+
 func isInputFromPipe() bool {
 	fileInfo, _ := os.Stdin.Stat()
 	return fileInfo.Mode()&os.ModeCharDevice == 0
 }
+
+func loadOrApplyCommandEulaPreRunHook(cmd *cobra.Command, q *qliksense.Qliksense) (bool, error) {
+	file, err := getCrFileFromFlag(cmd, "file")
+	if err != nil {
+		return false, err
+	}
+	defer file.Close()
+
+	if crBytes, err := ioutil.ReadAll(file); err != nil {
+		return false, err
+	} else {
+		eulaPreRunHooks.addPostValidationArtifact("CR", crBytes)
+		return q.IsEulaAcceptedInCrFile(bytes.NewBuffer(crBytes))
+	}
+}
+
+func runLoadOrApplyCommandE(cmd *cobra.Command, callBack func(io.Reader) error) error {
+	if crBytes := eulaPreRunHooks.getPostValidationArtifact("CR"); crBytes != nil {
+		return callBack(bytes.NewBuffer(crBytes.([]byte)))
+	} else {
+		file, err := getCrFileFromFlag(cmd, "file")
+		if err != nil {
+			return err
+		}
+		defer file.Close()
+		return callBack(file)
+	}
+}

cmd/qliksense/preflight.go

@@ -4,21 +4,20 @@ import (
 	"fmt"
 	"log"
 
+	"github.com/qlik-oss/sense-installer/pkg/preflight"
+
 	"github.com/qlik-oss/sense-installer/pkg/qliksense"
 	"github.com/spf13/cobra"
 )
 
 func preflightCmd(q *qliksense.Qliksense) *cobra.Command {
-	var configCmd = &cobra.Command{
-		Use:   "preflight",
-		Short: "perform preflight checks on the cluster",
-		Long:  `perform preflight checks on the cluster`,
-		Example: `qliksense preflight <preflight_check_to_run>
-Usage:
-qliksense preflight dns
-`,
+	var preflightCmd = &cobra.Command{
+		Use:     "preflight",
+		Short:   "perform preflight checks on the cluster",
+		Long:    `perform preflight checks on the cluster`,
+		Example: `qliksense preflight <preflight_check_to_run>`,
 	}
-	return configCmd
+	return preflightCmd
 }
 
 func preflightCheckDnsCmd(q *qliksense.Qliksense) *cobra.Command {
@@ -28,14 +27,55 @@ func preflightCheckDnsCmd(q *qliksense.Qliksense) *cobra.Command {
 		Long:    `perform preflight dns check to check DNS connectivity status in the cluster`,
 		Example: `qliksense preflight dns`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			err := q.DownloadPreflight()
+			qp := &preflight.QliksensePreflight{Q: q}
+			err := qp.DownloadPreflight()
 			if err != nil {
 				err = fmt.Errorf("There has been an error downloading preflight: %+v", err)
 				log.Println(err)
 				return err
 			}
-			return q.CheckDns()
+			return qp.CheckDns()
 		},
 	}
 	return preflightDnsCmd
 }
+
+func preflightCheckK8sVersionCmd(q *qliksense.Qliksense) *cobra.Command {
+	var preflightCheckK8sVersionCmd = &cobra.Command{
+		Use:     "k8s-version",
+		Short:   "check k8s version",
+		Long:    `check minimum valid k8s version on the cluster`,
+		Example: `qliksense preflight k8s-version`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			qp := &preflight.QliksensePreflight{Q: q}
+			err := qp.DownloadPreflight()
+			if err != nil {
+				err = fmt.Errorf("There has been an error downloading preflight: %+v", err)
+				log.Println(err)
+				return err
+			}
+			return qp.CheckK8sVersion()
+		},
+	}
+	return preflightCheckK8sVersionCmd
+}
+
+func preflightAllChecksCmd(q *qliksense.Qliksense) *cobra.Command {
+	var preflightAllChecksCmd = &cobra.Command{
+		Use:     "all",
+		Short:   "perform all checks",
+		Long:    `perform all preflight checks on the target cluster`,
+		Example: `qliksense preflight all`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			qp := &preflight.QliksensePreflight{Q: q}
+			err := qp.DownloadPreflight()
+			if err != nil {
+				err = fmt.Errorf("There has been an error downloading preflight: %+v", err)
+				log.Println(err)
+				return err
+			}
+			return qp.RunAllPreflightChecks()
+		},
+	}
+	return preflightAllChecksCmd
+}

cmd/qliksense/root.go

@@ -78,51 +78,59 @@ func setUpPaths() (string, error) {
 var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Print the version number of qliksense cli",
-	Long:  `All software has versions. This is Hugo's`,
+	Long:  "Print the version number of qliksense cli",
 	Run: func(cmd *cobra.Command, args []string) {
 		fmt.Printf("%s (%s, %s)\n", pkg.Version, pkg.Commit, pkg.CommitDate)
 	},
 }
 
-func commandUsesContext(command string) bool {
-	return command != "" && command != "help" && command != "version"
+func commandUsesContext(commandName string) bool {
+	return commandName != "" && commandName != "qliksense" && commandName != "help" && commandName != "version"
 }
 
-func globalPreRun(cmd *cobra.Command, p *qliksense.Qliksense) {
-	if command := cmd.CalledAs(); commandUsesContext(command) {
-		if isEulaEnforced() {
-			enforceEula(p)
-		}
-
-		if err := p.SetUpQliksenseDefaultContext(); err != nil {
-			panic(err)
-		}
-
-		if isEulaEnforced() {
-			if err := p.SetEulaAccepted(); err != nil {
-				panic(err)
-			}
-		}
-	}
-}
-
-func rootCmd(p *qliksense.Qliksense) *cobra.Command {
+func getRootCmd(p *qliksense.Qliksense) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "qliksense",
 		Short: "Qliksense cli tool",
 		Long:  `qliksense cli tool provides functionality to perform operations on qliksense-k8s, qliksense operator, and kubernetes cluster`,
 		Args:  cobra.ArbitraryArgs,
 		PersistentPreRun: func(cmd *cobra.Command, args []string) {
-			globalPreRun(cmd, p)
+			if commandUsesContext(cmd.Name()) {
+				globalEulaPreRun(cmd, p)
+				if err := p.SetUpQliksenseDefaultContext(); err != nil {
+					panic(err)
+				}
+				globalEulaPostRun(cmd, p)
+			}
+		},
+		PersistentPostRun: func(cmd *cobra.Command, args []string) {
+			if commandUsesContext(cmd.Name()) {
+				globalEulaPostRun(cmd, p)
+			}
 		},
 	}
-
+	origHelpFunc := cmd.HelpFunc()
+	cmd.SetHelpFunc(func(cmd *cobra.Command, args []string) {
+		if !commandUsesContext(cmd.Name()) {
+			cmd.Flags().MarkHidden("acceptEULA")
+		}
+		origHelpFunc(cmd, args)
+	})
+	accept := ""
+	cmd.PersistentFlags().StringVarP(&accept, "acceptEULA", "a", "", "Accept EULA for qliksense")
 	cmd.Flags().SetInterspersed(false)
+	return cmd
+}
 
+func initConfig() {
+	viper.SetEnvPrefix("QLIKSENSE")
+	viper.AutomaticEnv()
+}
+
+func rootCmd(p *qliksense.Qliksense) *cobra.Command {
+	cmd := getRootCmd(p)
 	cobra.OnInitialize(initConfig)
 
-	// For qliksense overrides/commands
-
 	cmd.AddCommand(getInstallableVersionsCmd(p))
 	cmd.AddCommand(pullQliksenseImages(p))
 	cmd.AddCommand(pushQliksenseImages(p))
@@ -188,6 +196,8 @@ func rootCmd(p *qliksense.Qliksense) *cobra.Command {
 	// add preflight command
 	preflightCmd := preflightCmd(p)
 	preflightCmd.AddCommand(preflightCheckDnsCmd(p))
+	preflightCmd.AddCommand(preflightCheckK8sVersionCmd(p))
+	preflightCmd.AddCommand(preflightAllChecksCmd(p))
 	//preflightCmd.AddCommand(preflightCheckMongoCmd(p))
 	//preflightCmd.AddCommand(preflightCheckAllCmd(p))
 
@@ -197,11 +207,6 @@ func rootCmd(p *qliksense.Qliksense) *cobra.Command {
 	return cmd
 }
 
-func initConfig() {
-	viper.SetEnvPrefix("QLIKSENSE")
-	viper.AutomaticEnv()
-}
-
 func copy(src, dst string) (int64, error) {
 	var (
 		source, destination *os.File

docs/command_reference.md

@@ -29,7 +29,7 @@ spec:
   rotateKeys: "yes"
   ```
 
-after doing one of the above commands, cli will set the current context to the cr name and install the qliksense into the cluster. so make sure you dont have a context (cr name = context name) with the same name already. It will though error if it same context name already exist. It will encrypt the secrets from CR while writing CR into the disk.
+This will do everything `qliksense load` does and install the qliksense into the cluster. 
 
 ## qliksense load
 
@@ -38,4 +38,82 @@ after doing one of the above commands, cli will set the current context to the c
 - `qliksense load -f cr-file.yaml`
 - `cat cr-file.yaml | qliksense load -f -`
 
-It will load the cr into `~/.qliksense` folder and create context strcture with for the CR and set the current context with the cr name. In case of multiple documents in a single stream/file it will set the current context to the last one. It will encrypt the secrets from CR while writing the CR into the disk.
+This will load the CR into `${QLIKSENSE_HOME}` folder, create context structure and set the current context to that CR. 
+This will also encrypt the secrets from CR while writing the CR into the disk.
+
+## qliksense about
+
+About action will display inside information regarding [qliksense-k8](https://github.com/qlik-oss/qliksense-k8s) release.
+
+it will support following flags
+
+- `qliksense about 1.0.0` display default profile for tag `1.0.0`.
+- `qliksense about 1.0.0 --profile=docker-desktop`
+- `qliksense about` 
+  - assuming current directory has `manifests/docker-desktop`
+  - or get version information from pull of `qliksense-k8s` `master`
+
+using other supported commands user might have built the CR into the location `~/.qliksense/myqliksense.yaml`
+
+```yaml
+apiVersion: qlik.com/v1
+kind: QlikSense
+metadata:
+  name: myqliksense
+spec:
+  profile: docker-desktop
+  manifestsRoot: /Usr/ddd/my-k8-repo/manifests
+  namespace: myqliksense
+  storageClassName: efs
+  configs:
+    qliksense:
+    - name: acceptEULA
+      value: "yes"
+  secrets:
+    qliksense:
+    - name: mongoDbUri
+      value: "mongo://mongo:3307"
+    - name: messagingPassword
+      valueFromKey: messagingPassword
+```
+
+In that case the command would be
+
+- `qliksense about`
+   - display from `/Usr/ddd/my-k8-repo/manifests/docker-desktop` location
+   - pull from `master` if directory invalid/empty
+
+
+## qliksense config
+
+Config action will perform operations on configurations and contexts regarding the [qliksense-k8](https://github.com/qlik-oss/qliksense-k8s) release.
+
+it will support following commands:
+
+- `qliksense config apply` - generate the patchs and apply manifests to k8s
+- `qliksense config list-contexts` - retrieves the contexts and lists them
+- `qliksense config set` - configure a key value pair into the current context
+- `qliksense config set-configs` - set configurations into the qliksense context as key-value pairs
+- `qliksense config set-context` - sets the context in which the Kubernetes cluster and resources live in
+- `qliksense config set-secrets <service_name>.<attribute>="<value>" --secret=false` - set secrets configurations into the qliksense context as key-value pairs and show encrypted value as part of CR
+- `qliksense config set-secrets <service_name>.<attribute>="<value>" --secret=true` - set secrets configurations into the qliksense context as key-value pairs and show a key reference to the created Kubernetes secret resource as part of the CR
+- `qliksense config view` - view the qliksense operator CR
+- `qliksense config delete-context` - deletes a specific context locally (not in-cluster). Deletes context in spec of `config.yaml` and locally deletes entire folder of specified context (does not delete in-cluster secrets)
+
+
+the global file that abstracts all the contexts is `config.yaml`, located at:  `~/.qliksense/config.yaml`:
+```yaml
+apiVersion: config.qlik.com/v1
+kind: QliksenseConfig
+metadata:
+  name: QliksenseConfigMetadata
+spec:
+  contexts:
+  - name: qlik-default
+    crFile: /Users/fff/.qliksense/contexts/qlik-default/qlik-default.yaml
+  - name: myqliksense
+    crFile: /Users/fff/.qliksense/contexts/myqliksense/myqliksense.yaml
+  - name: hello
+    crFile: /Users/fff/.qliksense/contexts/hello/hello.yaml
+  currentContext: hello
+```

docs/concepts.md

@@ -95,36 +95,3 @@ spec:
 ....
 ```
 
-##Preflight checks
-Preflight checks provide pre-installation cluster conformance testing and validation before we install qliksense on the cluster. We gather a suite of conformance tests that can be easily written and run on the target cluster to verify that cluster-specific requirements are met.
-The suite consists of a set of `collectors` which run the specifications of every test and `analyzers` which analyze the results of every test run by the collector.
-We support the following tests at the moment as part of preflight checks, and the range of the suite will be expanded in future.
-
-### DNS check
-Run the following command to view help about the commands supported by preflight at any moment:
-```console
-qliksense preflight
-perform preflight checks on the cluster
-
-Usage:
-  qliksense preflight [command]
-
-Examples:
-qliksense preflight <preflight_check_to_run>
-
-Usage:
-qliksense preflight dns
-
-Available Commands:
-  dns         perform preflight dns check
-```
-
-Run the following command to perform preflight DNS check. The expected output is also shown below.
-```console
-qliksense preflight dns
-  Running Preflight checks ⠧
---- PASS DNS check
-      --- DNS check passed
---- PASS   cluster-preflight-checks
-PASS
-```

docs/preflight_checks.md

@@ -0,0 +1,100 @@
+##Preflight checks
+Preflight checks provide pre-installation cluster conformance testing and validation before we install qliksense on the cluster. We gather a suite of conformance tests that can be easily written and run on the target cluster to verify that cluster-specific requirements are met.
+The suite consists of a set of `collectors` which run the specifications of every test and `analyzers` which analyze the results of every test run by the collector.
+We support the following tests at the moment as part of preflight checks, and the range of the suite will be expanded in future.
+
+Run the following command to view help about the commands supported by preflight at any moment:
+```console
+$ qliksense preflight
+perform preflight checks on the cluster
+
+Usage:
+  qliksense preflight [command]
+
+Examples:
+qliksense preflight <preflight_check_to_run>
+
+Available Commands:
+  all         perform all checks
+  dns         perform preflight dns check
+  k8s-version check k8s version
+
+Flags:
+  -h, --help   help for preflight
+```
+
+### DNS check
+Run the following command to perform preflight DNS check. We setup a kubernetes deployment and try to reach it as part of establishing DNS connectivity in this check. 
+The expected output should be similar to the one shown below.
+```console
+$ qliksense preflight dns
+
+Creating resources to run preflight checks
+deployment.apps/qnginx001 created
+service/qnginx001 created
+pod/qnginx001-6db5fc95c5-s9sl2 condition met
+  Running Preflight checks ⠇
+--- PASS DNS check
+      --- DNS check passed
+--- PASS   cluster-preflight-checks
+PASS
+
+DNS check completed, cleaning up resources now
+service "qnginx001" deleted
+deployment.extensions "qnginx001" deleted
+
+```
+
+### Kubernetes version check
+We check the version of the target kubernetes cluster and ensure that it falls in the valid range of kubernetes versions that are supported by qliksense. 
+The command to run this check and the expected similar output are as shown below:
+```console
+$ qliksense preflight k8s-version
+
+Minimum Kubernetes version supported: 1.11.0
+Client Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.3", GitCommit:"06ad960bfd03b39c8310aaf92d1e7c12ce618213", GitTreeState:"clean", BuildDate:"2020-02-13T18:08:14Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"darwin/amd64"}
+Server Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.5", GitCommit:"20c265fef0741dd71a66480e35bd69f18351daea", GitTreeState:"clean", BuildDate:"2019-10-15T19:07:57Z", GoVersion:"go1.12.10", Compiler:"gc", Platform:"linux/amd64"}
+  Running Preflight checks ⠇
+--- PASS Required Kubernetes Version
+      --- Good to go.
+--- PASS   cluster-preflight-checks
+PASS
+
+Minimum kubernetes version check completed
+```
+
+### Running all checks
+Run the command shown below to execute all preflight checks.
+```console
+$ qliksense preflight all
+
+Running all preflight checks
+
+Running DNS check...
+Creating resources to run preflight checks
+deployment.apps/qnginx001 created
+service/qnginx001 created
+pod/qnginx001-6db5fc95c5-grwv2 condition met
+  Running Preflight checks ⠇
+--- PASS DNS check
+      --- DNS check passed
+--- PASS   cluster-preflight-checks
+PASS
+
+DNS check completed, cleaning up resources now
+service "qnginx001" deleted
+deployment.extensions "qnginx001" deleted
+
+Running minimum kubernetes version check...
+Minimum Kubernetes version supported: 1.11.0
+Client Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.3", GitCommit:"06ad960bfd03b39c8310aaf92d1e7c12ce618213", GitTreeState:"clean", BuildDate:"2020-02-13T18:08:14Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"darwin/amd64"}
+Server Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.5", GitCommit:"20c265fef0741dd71a66480e35bd69f18351daea", GitTreeState:"clean", BuildDate:"2019-10-15T19:07:57Z", GoVersion:"go1.12.10", Compiler:"gc", Platform:"linux/amd64"}
+  Running Preflight checks ⠧
+--- PASS Required Kubernetes Version
+      --- Good to go.
+--- PASS   cluster-preflight-checks
+PASS
+
+Minimum kubernetes version check completed
+Completed running all preflight checks
+```

go.mod

@@ -37,6 +37,7 @@ require (
 	github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
 	github.com/mattn/go-colorable v0.1.4
+	github.com/mattn/go-tty v0.0.3
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/pkg/errors v0.8.1

go.sum

@@ -696,9 +696,13 @@ github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcME
 github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.6 h1:V2iyH+aX9C5fsYCpK60U8BYIvmhqxuOL3JZcqc1NB7k=
+github.com/mattn/go-runewidth v0.0.6/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-shellwords v1.0.5/go.mod h1:3xCvwCdWdlDJUrvuMn7Wuy9eWs4pE8vqg+NOMyg4B2o=
 github.com/mattn/go-shellwords v1.0.6 h1:9Jok5pILi5S1MnDirGVTufYGtksUs/V2BWUP3ZkeUUI=
 github.com/mattn/go-shellwords v1.0.6/go.mod h1:3xCvwCdWdlDJUrvuMn7Wuy9eWs4pE8vqg+NOMyg4B2o=
+github.com/mattn/go-tty v0.0.3 h1:5OfyWorkyO7xP52Mq7tB36ajHDG5OHrmBGIS/DtakQI=
+github.com/mattn/go-tty v0.0.3/go.mod h1:ihxohKRERHTVzN+aSVRwACLCeqIoZAWpoICkkvrWyR0=
 github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=

mkdocs.yml

@@ -19,5 +19,6 @@ nav:
   - getting_started.md
   - command_reference.md
   - concepts.md
+  - preflight_checks.md
   - air_gap.md
   - Releases ⧉: https://github.com/qlik-oss/sense-installer/releases

pkg/api/apis.go

@@ -59,7 +59,7 @@ func (qc *QliksenseConfig) GetCR(contextName string) (*QliksenseCR, error) {
 	if crFilePath == "" {
 		return nil, errors.New("context name " + contextName + " not found")
 	}
-	return GetCRObject(crFilePath)
+	return qc.GetAndTransformCrObject(crFilePath)
 }
 
 // GetCurrentCR create a QliksenseCR object for current context
@@ -98,6 +98,17 @@ func GetCRObject(crfile string) (*QliksenseCR, error) {
 	return cr, nil
 }
 
+func (qc *QliksenseConfig) GetAndTransformCrObject(crfile string) (*QliksenseCR, error) {
+	cr, err := GetCRObject(crfile)
+	if err != nil {
+		return nil, err
+	}
+	if cr.Spec.ManifestsRoot != "" && !filepath.IsAbs(cr.Spec.ManifestsRoot) {
+		cr.Spec.ManifestsRoot = filepath.Join(qc.QliksenseHomePath, cr.Spec.ManifestsRoot)
+	}
+	return cr, nil
+}
+
 //CreateCRObjectFromString create a QliksenseCR from string content
 func CreateCRObjectFromString(crContent string) (*QliksenseCR, error) {
 	if crContent == "" {
@@ -141,7 +152,7 @@ func (qc *QliksenseConfig) BuildRepoPath(version string) string {
 }
 
 func (qc *QliksenseConfig) BuildRepoPathForContext(contextName, version string) string {
-	return filepath.Join(qc.QliksenseHomePath, qliksenseContextsDirName, contextName, "qlik-k8s", version)
+	return filepath.Join(qc.GetContextPath(contextName), "qlik-k8s", version)
 }
 
 func (qc *QliksenseConfig) BuildCurrentManifestsRoot(version string) string {
@@ -153,7 +164,8 @@ func (qc *QliksenseConfig) WriteCR(cr *QliksenseCR, contextName string) error {
 	if crf == "" {
 		return errors.New("context name " + contextName + " not found")
 	}
-	return WriteToFile(cr, crf)
+
+	return qc.TransformAndWriteCr(cr, crf)
 }
 
 //CreateOrWriteCrAndContext create necessary folder structure, update config.yaml and context yaml files
@@ -175,13 +187,26 @@ func (qc *QliksenseConfig) CreateOrWriteCrAndContext(cr *QliksenseCR) error {
 		}
 		qc.AddToContexts(ctx)
 
-		if err := WriteToFile(qc, filepath.Join(qc.QliksenseHomePath, "config.yaml")); err != nil {
+		if err := qc.Write(); err != nil {
 			return err
 		}
 	}
-	return WriteToFile(cr, crf)
+
+	return qc.TransformAndWriteCr(cr, crf)
 }
 
+func (qc *QliksenseConfig) TransformAndWriteCr(cr *QliksenseCR, file string) error {
+	if strings.HasPrefix(cr.Spec.ManifestsRoot, qc.QliksenseHomePath) {
+		cr.Spec.ManifestsRoot = strings.Replace(cr.Spec.ManifestsRoot, qc.QliksenseHomePath+"/", "", 1)
+	}
+	if err := WriteToFile(cr, file); err != nil {
+		return err
+	}
+	if cr.Spec.ManifestsRoot != "" {
+		cr.Spec.ManifestsRoot = filepath.Join(qc.QliksenseHomePath, cr.Spec.ManifestsRoot)
+	}
+	return nil
+}
 func (qc *QliksenseConfig) AddToContexts(ctx Context) error {
 	//TODO: additional duplicate check may be added latter
 	qc.Spec.Contexts = append(qc.Spec.Contexts, ctx)
@@ -454,19 +479,22 @@ func (cr *QliksenseCR) Validate() bool {
 }
 
 //CreateContextDirs create context dir structure ~/.qliksense/contexts/contextName
-func (qc *QliksenseConfig) CreateContextDirs(contextName string) {
-	contexPath := filepath.Join(qc.QliksenseHomePath, qliksenseContextsDirName, contextName)
-	os.MkdirAll(contexPath, os.ModePerm)
+func (qc *QliksenseConfig) CreateContextDirs(contextName string) error {
+	return os.MkdirAll(qc.GetContextPath(contextName), os.ModePerm)
+}
+
+func (qc *QliksenseConfig) GetContextPath(contextName string) string {
+	return filepath.Join(qc.QliksenseHomePath, qliksenseContextsDirName, contextName)
 }
 
 //BuildCrFileAbsolutePath build absolute path for a cr ie. ~/.qliksense/contexts/qlik-defautl/qlik-default.yaml
 func (qc *QliksenseConfig) BuildCrFileAbsolutePath(contextName string) string {
-	return filepath.Join(qc.QliksenseHomePath, qliksenseContextsDirName, contextName, contextName+".yaml")
+	return filepath.Join(qc.GetContextPath(contextName), contextName+".yaml")
 }
 
 //BuildCrFilePath build cr file path i.e. contexts/qlik-default/qlik-default.yaml
 func (qc *QliksenseConfig) BuildCrFilePath(contextName string) string {
-	return filepath.Join(qliksenseContextsDirName, contextName, contextName+".yaml")
+	return filepath.Join(qc.GetContextPath(contextName), contextName+".yaml")
 }
 
 //AddToContexts add the context into qc.Spec.Contexts

pkg/api/utils.go

@@ -232,7 +232,6 @@ func UntarGzFile(destination, fileToUntar string) error {
 			fileAtLoc.Chmod(os.ModePerm)
 		}
 	}
-	return nil
 }
 
 func UnZipFile(destination, fileToUnzip string) error {

pkg/preflight/all_checks.go

@@ -0,0 +1,16 @@
+package preflight
+
+import (
+	"fmt"
+)
+
+func (qp *QliksensePreflight) RunAllPreflightChecks() error {
+	//run all preflight checks
+	fmt.Println("Running all preflight checks")
+	fmt.Printf("\nRunning DNS check...\n")
+	qp.CheckDns()
+	fmt.Printf("\nRunning minimum kubernetes version check...\n")
+	qp.CheckK8sVersion()
+	fmt.Println("Completed running all preflight checks")
+	return nil
+}

pkg/preflight/dns_check.go

@@ -0,0 +1,128 @@
+package preflight
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"io/ioutil"
+	"path/filepath"
+
+	"github.com/qlik-oss/sense-installer/pkg/api"
+)
+
+const dnsCheckYAML = `
+apiVersion: troubleshoot.replicated.com/v1beta1
+kind: Preflight
+metadata:
+  name: cluster-preflight-checks
+  namespace: {{ . }}
+spec:
+  collectors:
+    - run: 
+        collectorName: spin-up-pod
+        args: ["-z", "-v", "-w 1", "qnginx001", "80"]
+        command: ["nc"]
+        image: subfuzion/netcat:latest
+        imagePullPolicy: IfNotPresent
+        name: spin-up-pod-check-dns
+        namespace: {{ . }}
+        timeout: 30s
+
+  analyzers:
+    - textAnalyze:
+        checkName: DNS check
+        collectorName: spin-up-pod-check-dns
+        fileName: spin-up-pod.txt
+        regex: succeeded
+        outcomes:
+          - fail:
+              message: DNS check failed
+          - pass:
+              message: DNS check passed
+`
+
+func (qp *QliksensePreflight) CheckDns() error {
+	// retrieve namespace
+	namespace := api.GetKubectlNamespace()
+
+	api.LogDebugMessage("Namespace: %s\n", namespace)
+
+	tmpl, err := template.New("dnsCheckYAML").Parse(dnsCheckYAML)
+	if err != nil {
+		fmt.Printf("cannot parse template: %v", err)
+		return err
+	}
+	tempYaml, err := ioutil.TempFile("", "")
+	if err != nil {
+		fmt.Printf("cannot create file: %v", err)
+		return err
+	}
+	api.LogDebugMessage("Temp Yaml file: %s\n", tempYaml.Name())
+
+	b := bytes.Buffer{}
+	err = tmpl.Execute(&b, namespace)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	tempYaml.WriteString(b.String())
+
+	// creating Kubectl resources
+	appName := "qnginx001"
+	const PreflightChecksDirName = "preflight_checks"
+
+	fmt.Println("Creating resources to run preflight checks")
+
+	// kubectl create deployment
+	opr := fmt.Sprintf("create deployment %s --image=nginx", appName)
+	err = initiateK8sOps(opr, namespace)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	defer func() {
+		// Deleting deployment..
+		opr = fmt.Sprintf("delete deployment %s", appName)
+		// we want to delete the k8s resource here, we dont care a lot about an error here
+		_ = initiateK8sOps(opr, namespace)
+		api.LogDebugMessage("delete deployment executed")
+	}()
+
+	// create service
+	opr = fmt.Sprintf("create service clusterip %s --tcp=80:80", appName)
+	err = initiateK8sOps(opr, namespace)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	defer func() {
+		// delete service
+		opr = fmt.Sprintf("delete service %s", appName)
+		// we want to delete the k8s resource here, we dont care a lot about an error here
+		_ = initiateK8sOps(opr, namespace)
+		api.LogDebugMessage("delete service executed")
+	}()
+
+	//kubectl -n $namespace wait --for=condition=ready pod -l app=$appName --timeout=120s
+	opr = fmt.Sprintf("wait --for=condition=ready pod -l app=%s --timeout=120s", appName)
+	err = initiateK8sOps(opr, namespace)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+	api.LogDebugMessage("kubectl wait executed")
+
+	// call preflight
+	preflightCommand := filepath.Join(qp.Q.QliksenseHome, PreflightChecksDirName, preflightFileName)
+
+	err = invokePreflight(preflightCommand, tempYaml)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+	fmt.Println("DNS check completed, cleaning up resources now")
+	return nil
+}

pkg/preflight/preflight_utils.go

@@ -1,9 +1,8 @@
-package qliksense
+package preflight
 
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"os/exec"
@@ -11,11 +10,15 @@ import (
 	"runtime"
 	"strings"
 
-	"text/template"
+	"github.com/qlik-oss/sense-installer/pkg/qliksense"
 
 	"github.com/qlik-oss/sense-installer/pkg/api"
 )
 
+type QliksensePreflight struct {
+	Q *qliksense.Qliksense
+}
+
 const (
 	// preflight releases have the same version
 	preflightRelease       = "v0.9.26"
@@ -23,45 +26,15 @@ const (
 	preflightMacFile       = "preflight_darwin_amd64.tar.gz"
 	preflightWindowsFile   = "preflight_windows_amd64.zip"
 	PreflightChecksDirName = "preflight_checks"
+	preflightFileName      = "preflight"
 )
 
 var preflightBaseURL = fmt.Sprintf("https://github.com/replicatedhq/troubleshoot/releases/download/%s/", preflightRelease)
 
-const dnsCheckYAML = `
-apiVersion: troubleshoot.replicated.com/v1beta1
-kind: Preflight
-metadata:
-  name: cluster-preflight-checks
-  namespace: {{ . }}
-spec:
-  collectors:
-    - run: 
-        collectorName: spin-up-pod
-        args: ["-z", "-v", "-w 1", "qnginx001", "80"]
-        command: ["nc"]
-        image: subfuzion/netcat:latest
-        imagePullPolicy: IfNotPresent
-        name: spin-up-pod-check-dns
-        namespace: {{ . }}
-        timeout: 30s
-
-  analyzers:
-    - textAnalyze:
-        checkName: DNS check
-        collectorName: spin-up-pod-check-dns
-        fileName: spin-up-pod.txt
-        regex: succeeded
-        outcomes:
-          - fail:
-              message: DNS check failed
-          - pass:
-              message: DNS check passed
-`
-
-func (q *Qliksense) DownloadPreflight() error {
+func (qp *QliksensePreflight) DownloadPreflight() error {
 	const preflightExecutable = "preflight"
 
-	preflightInstallDir := filepath.Join(q.QliksenseHome, PreflightChecksDirName)
+	preflightInstallDir := filepath.Join(qp.Q.QliksenseHome, PreflightChecksDirName)
 	platform := runtime.GOOS
 
 	exists, err := checkInstalled(preflightInstallDir, preflightExecutable)
@@ -72,7 +45,7 @@ func (q *Qliksense) DownloadPreflight() error {
 	}
 	if exists {
 		// preflight exist, no need to download again.
-		api.LogDebugMessage("Preflight already exist, proceeding to perform checks")
+		api.LogDebugMessage("Preflight already exists, proceeding to perform checks")
 		return nil
 	}
 
@@ -160,93 +133,6 @@ func determinePlatformSpecificUrls(platform string) (string, string, error) {
 	return preflightUrl, preflightFile, nil
 }
 
-func (q *Qliksense) CheckDns() error {
-	// retrieve namespace
-	namespace := api.GetKubectlNamespace()
-
-	api.LogDebugMessage("Namespace: %s\n", namespace)
-
-	tmpl, err := template.New("test").Parse(dnsCheckYAML)
-	if err != nil {
-		fmt.Printf("cannot parse template: %v", err)
-		return err
-	}
-	tempYaml, err := ioutil.TempFile("", "")
-	if err != nil {
-		fmt.Printf("cannot create file: %v", err)
-		return err
-	}
-	api.LogDebugMessage("Temp Yaml file: %s\n", tempYaml.Name())
-
-	b := bytes.Buffer{}
-	err = tmpl.Execute(&b, namespace)
-	if err != nil {
-		fmt.Println(err)
-		return err
-	}
-
-	tempYaml.WriteString(b.String())
-
-	// creating Kubectl resources
-	appName := "qnginx001"
-	const PreflightChecksDirName = "preflight_checks"
-	const preflightFileName = "preflight"
-
-	fmt.Println("Creating resources to run preflight checks")
-
-	// kubectl create deployment
-	opr := fmt.Sprintf("create deployment %s --image=nginx", appName)
-	err = initiateK8sOps(opr, namespace)
-	if err != nil {
-		fmt.Println(err)
-		return err
-	}
-
-	defer func() {
-		// Deleting deployment..
-		opr = fmt.Sprintf("delete deployment %s", appName)
-		// we want to delete the k8s resource here, we dont care a lot about an error here
-		_ = initiateK8sOps(opr, namespace)
-		api.LogDebugMessage("delete deployment executed")
-	}()
-
-	// create service
-	opr = fmt.Sprintf("create service clusterip %s --tcp=80:80", appName)
-	err = initiateK8sOps(opr, namespace)
-	if err != nil {
-		fmt.Println(err)
-		return err
-	}
-
-	defer func() {
-		// delete service
-		opr = fmt.Sprintf("delete service %s", appName)
-		// we want to delete the k8s resource here, we dont care a lot about an error here
-		_ = initiateK8sOps(opr, namespace)
-		api.LogDebugMessage("delete service executed")
-	}()
-
-	//kubectl -n $namespace wait --for=condition=ready pod -l app=$appName --timeout=120s
-	opr = fmt.Sprintf("wait --for=condition=ready pod -l app=%s --timeout=120s", appName)
-	err = initiateK8sOps(opr, namespace)
-	if err != nil {
-		fmt.Println(err)
-		return err
-	}
-	api.LogDebugMessage("kubectl wait executed")
-
-	// call preflight
-	preflightCommand := filepath.Join(q.QliksenseHome, PreflightChecksDirName, preflightFileName)
-
-	err = invokePreflight(preflightCommand, tempYaml)
-	if err != nil {
-		fmt.Println(err)
-		return err
-	}
-
-	return nil
-}
-
 func initiateK8sOps(opr, namespace string) error {
 	opr1 := strings.Fields(opr)
 	err := api.KubectlDirectOps(opr1, namespace)
@@ -296,6 +182,6 @@ func invokePreflight(preflightCommand string, yamlFile *os.File) error {
 	//		break
 	//	}
 	//}
-	fmt.Println("Preflight checks completed, cleaning up resources now")
+
 	return nil
 }

pkg/preflight/preflight_utils_test.go

@@ -1,4 +1,4 @@
-package qliksense
+package preflight
 
 import (
 	"fmt"

pkg/preflight/version_check.go

@@ -0,0 +1,84 @@
+package preflight
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"path/filepath"
+	"text/template"
+
+	"github.com/qlik-oss/sense-installer/pkg/api"
+)
+
+const minK8sVersion = "1.11.0"
+const checkVersionYAML = `
+apiVersion: troubleshoot.replicated.com/v1beta1
+kind: Preflight
+metadata:
+  name: cluster-preflight-checks
+  namespace: {{ .namespace }}
+spec:
+  analyzers:
+    - clusterVersion:
+        outcomes:
+          - fail:
+              when: "< {{ .minK8sVersion }}"
+              message: The application requires at least Kubernetes {{ .minK8sVersion }} or later.
+              uri: https://www.kubernetes.io
+          - pass:
+              when: ">= {{ .minK8sVersion }}"
+              message: Good to go.
+`
+
+func (qp *QliksensePreflight) CheckK8sVersion() error {
+	// retrieve namespace
+	namespace := api.GetKubectlNamespace()
+
+	api.LogDebugMessage("Namespace: %s\n", namespace)
+
+	tmpl, err := template.New("checkVersionYAML").Parse(checkVersionYAML)
+	if err != nil {
+		fmt.Printf("cannot parse template: %v", err)
+		return err
+	}
+	tempYaml, err := ioutil.TempFile("", "")
+	if err != nil {
+		fmt.Printf("cannot create file: %v", err)
+		return err
+	}
+	api.LogDebugMessage("Temp Yaml file: %s\n", tempYaml.Name())
+
+	b := bytes.Buffer{}
+	err = tmpl.Execute(&b, map[string]string{
+		"namespace":     namespace,
+		"minK8sVersion": minK8sVersion,
+	})
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	tempYaml.WriteString(b.String())
+	//api.LogDebugMessage("Temp yaml contents: %s", b.String())
+	fmt.Printf("Minimum Kubernetes version supported: %s\n", minK8sVersion)
+
+	// current kubectl version
+	opr := fmt.Sprintf("version")
+	err = initiateK8sOps(opr, namespace)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	// call preflight
+	preflightCommand := filepath.Join(qp.Q.QliksenseHome, PreflightChecksDirName, preflightFileName)
+
+	err = invokePreflight(preflightCommand, tempYaml)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	fmt.Println("Minimum kubernetes version check completed")
+	return nil
+}

pkg/qliksense/apply.go

@@ -6,8 +6,8 @@ import (
 	qapi "github.com/qlik-oss/sense-installer/pkg/api"
 )
 
-func (q *Qliksense) ApplyCRFromReader(r io.Reader) error {
-	if err := q.LoadCr(r); err != nil {
+func (q *Qliksense) ApplyCRFromReader(r io.Reader, opts *InstallCommandOptions, keepPatchFiles, overwriteExistingContext bool) error {
+	if err := q.LoadCr(r, overwriteExistingContext); err != nil {
 		return err
 	}
 	qConfig := qapi.NewQConfig(q.QliksenseHome)
@@ -15,8 +15,7 @@ func (q *Qliksense) ApplyCRFromReader(r io.Reader) error {
 	if err != nil {
 		return err
 	}
-	opts := &InstallCommandOptions{}
-	if err := q.InstallQK8s(cr.GetLabelFromCr("version"), opts, true); err != nil {
+	if err := q.InstallQK8s(cr.GetLabelFromCr("version"), opts, keepPatchFiles); err != nil {
 		return err
 	}
 	return nil

pkg/qliksense/confirmation.go

@@ -0,0 +1,24 @@
+package qliksense
+
+import (
+	"fmt"
+	"log"
+	"strings"
+)
+
+func AskForConfirmation(s string) bool {
+	for {
+		fmt.Printf("%s [y/n]: ", s)
+		var response string
+		_, err := fmt.Scanln(&response)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		if strings.EqualFold(response, "y") || strings.EqualFold(response, "yes") {
+			return true
+		} else if strings.EqualFold(response, "n") || strings.EqualFold(response, "no") {
+			return false
+		}
+	}
+}

pkg/qliksense/context_configs.go

@@ -276,7 +276,7 @@ func (q *Qliksense) SetOtherConfigs(args []string) error {
 // SetContextConfig - set the context for qliksense kubernetes resources to live in
 func (q *Qliksense) SetContextConfig(args []string) error {
 	if len(args) == 1 {
-		err := q.SetUpQliksenseContext(args[0], false)
+		err := q.SetUpQliksenseContext(args[0])
 		if err != nil {
 			return err
 		}
@@ -312,7 +312,7 @@ func (q *Qliksense) ListContextConfigs() error {
 	return nil
 }
 
-func (q *Qliksense) DeleteContextConfig(args []string) error {
+func (q *Qliksense) DeleteContextConfig(args []string, flag bool) error {
 	if len(args) == 1 {
 		qliksenseConfigFile := filepath.Join(q.QliksenseHome, QliksenseConfigFile)
 		var qliksenseConfig api.QliksenseConfig
@@ -354,9 +354,17 @@ func (q *Qliksense) DeleteContextConfig(args []string) error {
 					}
 					newLength := len(qliksenseConfig.Spec.Contexts)
 					if currentLength != newLength {
-						api.WriteToFile(&qliksenseConfig, qliksenseConfigFile)
-						fmt.Fprintln(out, chalk.Yellow.Color(chalk.Underline.TextStyle("Warning: Active resources may still be running in-cluster")))
-						fmt.Fprintln(out, chalk.Green.Color("Successfully deleted context: "), chalk.Bold.TextStyle(args[0]))
+						ans := flag
+						if ans == false {
+							ans = AskForConfirmation("Are You Sure? ")
+						}
+						if ans == true {
+							api.WriteToFile(&qliksenseConfig, qliksenseConfigFile)
+							fmt.Fprintln(out, chalk.Yellow.Color(chalk.Underline.TextStyle("Warning: Active resources may still be running in-cluster")))
+							fmt.Fprintln(out, chalk.Green.Color("Successfully deleted context: "), chalk.Bold.TextStyle(args[0]))
+						} else {
+							return nil
+						}
 					} else {
 						err := fmt.Errorf(chalk.Red.Color("Context not found"))
 						return err
@@ -374,12 +382,11 @@ func (q *Qliksense) DeleteContextConfig(args []string) error {
 
 // SetUpQliksenseDefaultContext - to setup dir structure for default qliksense context
 func (q *Qliksense) SetUpQliksenseDefaultContext() error {
-	return q.SetUpQliksenseContext(DefaultQliksenseContext, true)
+	return q.SetUpQliksenseContext(DefaultQliksenseContext)
 }
 
 // SetUpQliksenseContext - to setup qliksense context
-func (q *Qliksense) SetUpQliksenseContext(contextName string, isDefaultContext bool) error {
-	fmt.Println(contextName)
+func (q *Qliksense) SetUpQliksenseContext(contextName string) error {
 	if contextName == "" {
 		err := fmt.Errorf("Please enter a non-empty context-name")
 		log.Println(err)
@@ -405,14 +412,15 @@ func (q *Qliksense) SetUpQliksenseContext(contextName string, isDefaultContext b
 	}
 
 	if qliksenseConfig.IsContextExist(contextName) {
-		fmt.Println("context [ " + contextName + " ] already exist")
 		return nil
 	}
 	qliksenseCR := &api.QliksenseCR{}
 	qliksenseCR.AddCommonConfig(contextName)
+	qliksenseConfig.Spec.CurrentContext = contextName
 	if err := qliksenseConfig.CreateOrWriteCrAndContext(qliksenseCR); err != nil {
 		return err
 	}
+
 	// set the encrypted default mongo
 	return q.SetSecrets([]string{`qliksense.mongoDbUri="mongodb://qlik-default-mongodb:27017/qliksense?ssl=false"`}, false)
 }
@@ -532,6 +540,9 @@ func (q *Qliksense) SetEulaAccepted() error {
 	if err != nil {
 		return err
 	}
-	qcr.SetEULA("yes")
-	return qConfig.WriteCurrentContextCR(qcr)
+	if !qcr.IsEULA() {
+		qcr.SetEULA("yes")
+		return qConfig.WriteCurrentContextCR(qcr)
+	}
+	return nil
 }

pkg/qliksense/context_configs_test.go

@@ -275,7 +275,7 @@ func TestSetUpQliksenseContext(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			q := New(tt.args.qlikSenseHome)
-			if err := q.SetUpQliksenseContext(tt.args.contextName, tt.args.isDefaultContext); (err != nil) != tt.wantErr {
+			if err := q.SetUpQliksenseContext(tt.args.contextName); (err != nil) != tt.wantErr {
 				t.Errorf("SetUpQliksenseContext() error = %v, wantErr %v", err, tt.wantErr)
 			}
 		})
@@ -928,9 +928,10 @@ func TestDeleteContexts(t *testing.T) {
 			q := New(tt.args.qlikSenseHome)
 			var arg []string
 			arg = append(arg, tt.args.contextName)
-			if err := q.DeleteContextConfig(arg); (err != nil) != tt.wantErr {
+			if err := q.DeleteContextConfig(arg, true); (err != nil) != tt.wantErr {
 				t.Errorf("DeleteContext() error = %v, wantErr %v", err, tt.wantErr)
 			}
+
 		})
 	}
 

pkg/qliksense/fetch_test.go

@@ -0,0 +1,35 @@
+package qliksense
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"testing"
+
+	qapi "github.com/qlik-oss/sense-installer/pkg/api"
+)
+
+func TestFetchAndUpdateCR(t *testing.T) {
+	tempHome, _ := ioutil.TempDir("", "")
+
+	q := &Qliksense{
+		QliksenseHome: tempHome,
+	}
+	q.SetUpQliksenseContext("test1")
+	qConfig := qapi.NewQConfig(tempHome)
+	if err := fetchAndUpdateCR(qConfig, "v0.0.2"); err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+
+	actualCrFile := filepath.Join(tempHome, "contexts", "test1", "test1.yaml")
+	cr := &qapi.QliksenseCR{}
+	if err := qapi.ReadFromFile(cr, actualCrFile); err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+
+	if cr.Spec.ManifestsRoot != "contexts/test1/qlik-k8s/v0.0.2" {
+		t.Log("actual path: " + cr.Spec.ManifestsRoot + ", expected path: contexts/test1/qlik-k8s/v0.0.2")
+		t.FailNow()
+	}
+}

pkg/qliksense/install.go

@@ -12,7 +12,6 @@ import (
 )
 
 type InstallCommandOptions struct {
-	AcceptEULA   string
 	StorageClass string
 	MongoDbUri   string
 	RotateKeys   string
@@ -41,9 +40,7 @@ func (q *Qliksense) InstallQK8s(version string, opts *InstallCommandOptions, kee
 		return err
 	}
 
-	if opts.AcceptEULA != "" {
-		qcr.SetEULA(opts.AcceptEULA)
-	}
+	qcr.SetEULA("yes")
 	if opts.MongoDbUri != "" {
 		qcr.Spec.AddToSecrets("qliksense", "mongoDbUri", opts.MongoDbUri, "")
 	}

pkg/qliksense/install_test.go

@@ -47,7 +47,7 @@ spec:
 		t.Log(e)
 		t.FailNow()
 	}
-	if err := q.LoadCr(file); err != nil {
+	if err := q.LoadCr(file, false); err != nil {
 		t.Log(err)
 		t.FailNow()
 	}

pkg/qliksense/load_cr.go

@@ -1,36 +1,53 @@
 package qliksense
 
 import (
-	"bufio"
 	"errors"
 	"fmt"
 	"io"
+	"io/ioutil"
+	"os"
 
 	qapi "github.com/qlik-oss/sense-installer/pkg/api"
 )
 
-//
-func (q *Qliksense) LoadCr(reader io.Reader) error {
-	for _, doc := range readMultipleYamlFromReader(reader) {
-		if crName, err := q.loadCrStringIntoFileSystem(doc); err != nil {
-			return err
-		} else {
-			fmt.Println("cr name: [ " + crName + " ] has been loaded")
-		}
+func (q *Qliksense) LoadCr(reader io.Reader, overwriteExistingContext bool) error {
+	if crBytes, err := ioutil.ReadAll(reader); err != nil {
+		return err
+	} else if crName, err := q.loadCrStringIntoFileSystem(string(crBytes), overwriteExistingContext); err != nil {
+		return err
+	} else {
+		fmt.Println("cr name: [ " + crName + " ] has been loaded")
 	}
 	return nil
 }
 
-func (q *Qliksense) loadCrStringIntoFileSystem(crstr string) (string, error) {
+func (q *Qliksense) IsEulaAcceptedInCrFile(reader io.Reader) (bool, error) {
+	if crBytes, err := ioutil.ReadAll(reader); err != nil {
+		return false, err
+	} else if cr, err := qapi.CreateCRObjectFromString(string(crBytes)); err != nil {
+		return false, err
+	} else {
+		return cr.IsEULA(), nil
+	}
+}
+
+func (q *Qliksense) loadCrStringIntoFileSystem(crstr string, overwriteExistingContext bool) (string, error) {
 	cr, err := qapi.CreateCRObjectFromString(crstr)
 	if err != nil {
 		return "", err
 	}
 	qConfig := qapi.NewQConfig(q.QliksenseHome)
 	if qConfig.IsContextExist(cr.GetName()) {
-		return "", errors.New("Context Name: " + cr.GetName() + " already exist. please delete the existing context first using delete-context command")
+		if !overwriteExistingContext {
+			return "", errors.New("Context with name: " + cr.GetName() + " already exists. " +
+				"Please delete the existing context first using the delete-context command or specify the --overwrite flag.")
+		} else if err := os.RemoveAll(qConfig.GetContextPath(cr.GetName())); err != nil {
+			return "", err
+		}
+	}
+	if err := qConfig.CreateContextDirs(cr.GetName()); err != nil {
+		return "", err
 	}
-	qConfig.CreateContextDirs(cr.GetName())
 
 	// encrypt the secrets and do base64 then update the CR
 	rsaPublicKey, _, err := qConfig.GetContextEncryptionKeyPair(cr.GetName())
@@ -57,28 +74,8 @@ func (q *Qliksense) loadCrStringIntoFileSystem(crstr string) (string, error) {
 	if err = qConfig.CreateOrWriteCrAndContext(cr); err != nil {
 		return "", err
 	}
-	qConfig.AddToContextsRaw(cr.GetName(), qConfig.BuildCrFilePath(cr.GetName()))
 	qConfig.SetCurrentContextName(cr.GetName())
 	qConfig.Write()
 
 	return cr.GetName(), nil
 }
-
-func readMultipleYamlFromReader(reader io.Reader) []string {
-	docs := make([]string, 0)
-	scanner := bufio.NewScanner(bufio.NewReader(reader))
-	adoc := ""
-	for scanner.Scan() {
-		s := scanner.Text()
-		if s == "---" {
-			docs = append(docs, adoc)
-			adoc = ""
-			s = ""
-		}
-		adoc = adoc + "\n" + s
-	}
-	if adoc != "" {
-		docs = append(docs, adoc)
-	}
-	return docs
-}

pkg/qliksense/load_cr_test.go

@@ -12,7 +12,7 @@ import (
 func TestLoadCrFile(t *testing.T) {
 	td := setup()
 	setup()
-	sampleCr := `
+	sampleCr1 := `
 apiVersion: qlik.com/v1
 kind: Qliksense
 metadata:
@@ -38,8 +38,8 @@ spec:
     - name: mongoDbUri
       value: mongodb://qlik-default-mongodb:27017/qliksense?ssl=false
   profile: docker-desktop
-  rotateKeys: "yes"
----
+  rotateKeys: "yes"`
+	sampleCr2 := `
 apiVersion: qlik.com/v1
 kind: Qliksense
 metadata:
@@ -79,19 +79,30 @@ spec:
     repository: https://github.com/ffoysal/qliksense-k8s
     accessToken: abababababababaab
     userName: "blblbl"`
-	crFile := filepath.Join(testDir, "testcr.yaml")
-	ioutil.WriteFile(crFile, []byte(sampleCr), 0644)
+	crFile1 := filepath.Join(testDir, "testcr1.yaml")
+	ioutil.WriteFile(crFile1, []byte(sampleCr1), 0644)
+	crFile2 := filepath.Join(testDir, "testcr2.yaml")
+	ioutil.WriteFile(crFile2, []byte(sampleCr2), 0644)
 
 	dupCrFile := filepath.Join(testDir, "dupcr.yaml")
 	ioutil.WriteFile(dupCrFile, []byte(duplicateCr), 0644)
 
 	q := New(testDir)
-	file, e := os.Open(crFile)
+	file1, e := os.Open(crFile1)
 	if e != nil {
 		t.Log(e)
 		t.FailNow()
 	}
-	if err := q.LoadCr(file); err != nil {
+	if err := q.LoadCr(file1, false); err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+	file2, e := os.Open(crFile2)
+	if e != nil {
+		t.Log(e)
+		t.FailNow()
+	}
+	if err := q.LoadCr(file2, false); err != nil {
 		t.Log(err)
 		t.FailNow()
 	}
@@ -117,12 +128,12 @@ spec:
 	if qConfig.Spec.CurrentContext != "qlik-test3" {
 		t.FailNow()
 	}
-	file, e = os.Open(dupCrFile)
+	file, e := os.Open(dupCrFile)
 	if e != nil {
 		t.Log(e)
 		t.FailNow()
 	}
-	if err := q.LoadCr(file); err == nil {
+	if err := q.LoadCr(file, false); err == nil {
 		t.FailNow()
 	}
 	td()