Added code to support qliksense way to do preflight checks (#5)

* Added code to support qliksense way to do preflight checks

.circleci/config.yml

@@ -17,12 +17,23 @@ jobs:
     steps:
       - checkout
       - run: make xbuild-all
+      - run:
+          name: "Build latest master from porter repo"
+          command: |
+            export GO111MODULE=off
+            go get -u get.porter.sh/porter || true
+            cd /go/src/get.porter.sh/porter
+            # store porter master commit
+            git rev-parse HEAD > /go/porter-master-commit.txt
+            make xbuild-all VERSION=latest
+            cp -r bin/latest/* /go/src/github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/bin/${CIRCLE_TAG}/
       - run:
           name: "Publish Release on GitHub"
           command: |
             go get github.com/tcnksm/ghr
             # VERSION=v$(./artifacts/qliksense-linux-amd64 version | sed -nre 's/^[^0-9]*(([0-9]+\.)*[0-9]+).*/\1/p')
-            ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -delete ${CIRCLE_TAG} /go/src/github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/bin/${CIRCLE_TAG}/
+            PORTER_REPO_COMMIT=$(cat /go/porter-master-commit.txt)
+            ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -b "porter build based on commit: https://github.com/deislabs/porter/commit/${PORTER_REPO_COMMIT}" -delete ${CIRCLE_TAG}  /go/src/github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/bin/${CIRCLE_TAG}/
 workflows:
   version: 2
   commit:

Makefile

@@ -1,4 +1,4 @@
-PKG = qlik-oss/sense-installer
+PKG = github.com/qlik-oss/sense-installer
 
 # --no-print-directory avoids verbose logging when invoking targets that utilize sub-makes
 MAKE_OPTS ?= --no-print-directory

README.md

@@ -7,9 +7,16 @@ The Qlik Sense installations and operations CLI provides capabilities for instal
 Download the appropriate executable for your platform from the [releases page](https://github.com/qlik-oss/sense-installer/releases). When used, the CLI will check to see if porter is installed, if not, will download and install it. Once done, you can find porter through `echo $HOME/.porter` on Linux and MacOS and in `$Env:USERPROFILE\.porter` on Windows. You can also install it in advance, release > 0.22.1-beta.1 is required.
 
 To make sure everything is order, you can fetch the Qlik Sense bundle version and corresponding image list from:
- - `qliksense about -tag qlik/qliksense-cnab-bundle:latest `
+ - `qliksense about --tag qlik/qliksense-cnab-bundle:latest `
+
+## Running Preflight checks
+You can run preflight checks to ensure that the cluster is in a healthy state before installing Qliksense. 
+- `qliksense preflight -c <credential_name> `
+
+The above command runs the checks in the default namespace. If you want to specify the namespace to run preflight checks on:
+- `qliksense preflight --param namespace=<value> -c <credential_name> `
 
 ## Qliksense Packaging
-Packaging of Qlik Sense on Kubernetes is done through a [Porter](https://porter.sh/) definition in the [Qlik Sense on Kubernetes configuration repository](https://github.com/qlik-oss/qliksense-k8s/blob/master/porter.yaml), the resulting bundle publisked on DockerHub as a [Cloud Natvie Application Bundle](https://cnab.io/) called [qliksense-cnab-bundle](https://hub.docker.com/r/qlik/qliksense-cnab-bundle).
+Packaging of Qlik Sense on Kubernetes is done through a [Porter](https://porter.sh/) definition in the [Qlik Sense on Kubernetes configuration repository](https://github.com/qlik-oss/qliksense-k8s/blob/master/porter.yaml), the resulting bundle published on DockerHub as a [Cloud Natvie Application Bundle](https://cnab.io/) called [qliksense-cnab-bundle](https://hub.docker.com/r/qlik/qliksense-cnab-bundle).
 ### Versioning
 A version of [qliksense-cnab-bundle](https://hub.docker.com/r/qlik/qliksense-cnab-bundle) is published corresponding to an edge release. To get the latest edge release simply specify `qliksense-cnab-bundle:latest`

cmd/qliksense/aliases.go

@@ -15,6 +15,7 @@ func buildAliasCommands(porterCmd *cobra.Command, q *qliksense.Qliksense) []*cob
 		buildBuildAlias(porterCmd),
 		buildInstallAlias(porterCmd, q),
 		buildAboutAlias(porterCmd),
+		buildPreflightAlias(porterCmd, q),
 	}
 
 }
@@ -172,6 +173,36 @@ func buildAboutAlias(porterCmd *cobra.Command) *cobra.Command {
 	return c
 }
 
+func buildPreflightAlias(porterCmd *cobra.Command, q *qliksense.Qliksense) *cobra.Command {
+	var (
+		c    *cobra.Command
+		opts *paramOptions
+	)
+
+	opts = &paramOptions{}
+
+	c = &cobra.Command{
+		Use:   "preflight",
+		Short: "Preflight Checks",
+		Long:  "Perform Preflight Checks",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			args = append(os.Args[1:], opts.getTagDefaults(args)...)
+			return porterCmd.RunE(porterCmd, append([]string{"invoke", "--action", "preflight"}, args...))
+		},
+		Annotations: map[string]string{
+			"group": "alias",
+		},
+	}
+	f := c.Flags()
+	f.StringSliceVar(&opts.Params, "param", nil,
+		"Define an individual parameter in the form NAME=VALUE. Overrides parameters set with the same name using --param-file. May be specified multiple times.")
+	f.StringSliceVar(&opts.ParamFiles, "param-file", nil,
+		"Path to a parameters definition file for the bundle, each line in the form of NAME=VALUE. May be specified multiple times.")
+	f.StringSliceVarP(&opts.CredentialIdentifiers, "cred", "c", nil,
+		"Credential to use when installing the bundle. May be either a named set of credentials or a filepath, and specified multiple times.")
+	return c
+}
+
 func (o *paramOptions) findKey(param string) *string {
 	var (
 		value *string

cmd/qliksense/root.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	"github.com/mitchellh/go-homedir"
+	"github.com/qlik-oss/sense-installer/pkg"
 	"github.com/qlik-oss/sense-installer/pkg/qliksense"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -43,10 +44,10 @@ func initAndExecute() error {
 
 func installPorter() (string, error) {
 	var (
-		//porterPermaLink = pkg.Version
-		porterPermaLink                                          = "v0.3.0"
+		porterPermaLink = pkg.Version
+		//porterPermaLink                                          = "v0.3.0"
 		destination, homeDir, mixin, mixinOpts, qlikSenseHome, porterExe, ext string
-		mixinsVar                                                = map[string]string{
+		mixinsVar                                                             = map[string]string{
 			"kustomize":  "-v 0.2-beta-3-0e19ca4 --url https://github.com/donmstewart/porter-kustomize/releases/download",
 			"qliksense":  "-v v0.11.0 --url https://github.com/qlik-oss/porter-qliksense/releases/download",
 			"exec":       "-v latest",
@@ -97,7 +98,7 @@ func installPorter() (string, error) {
 	if downloadPorter {
 		os.Mkdir(qlikSenseHome, os.ModePerm)
 		destination = filepath.Join(qlikSenseHome, porterRuntime)
-		if err = downloadFile(porterURLBase+"/"+porterPermaLink+"/porter-linux-amd64", destination ); err != nil {
+		if err = downloadFile(porterURLBase+"/"+porterPermaLink+"/porter-linux-amd64", destination); err != nil {
 			return "", err
 		}
 		os.Chmod(destination, 0755)