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install.go
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install.go
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package qliksense
import (
"errors"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"github.com/mitchellh/go-homedir"
"github.com/qlik-oss/k-apis/pkg/config"
"github.com/qlik-oss/k-apis/pkg/cr"
"sigs.k8s.io/kustomize/api/filesys"
qapi "github.com/qlik-oss/sense-installer/pkg/api"
)
type InstallCommandOptions struct {
StorageClass string
MongodbUri string
RotateKeys string
DryRun bool
}
func (q *Qliksense) InstallQK8s(version string, opts *InstallCommandOptions, cleanPatchFiles bool) error {
// step1: fetch 1.0.0 # pull down qliksense-k8s@1.0.0
// step2: operator view | kubectl apply -f # operator manifest (CRD)
// step3: config apply | kubectl apply -f # generates patches (if required) in configuration directory, applies manifest
// step4: config view | kubectl apply -f # generates Custom Resource manifest (CR)
// fetch the version
qConfig := qapi.NewQConfig(q.QliksenseHome)
if cleanPatchFiles {
if err := q.DiscardAllUnstagedChangesFromGitRepo(qConfig); err != nil {
fmt.Printf("error removing temporary changes to the config: %v\n", err)
}
}
qcr, err := qConfig.GetCurrentCR()
if err != nil {
fmt.Println("cannot get the current-context cr", err)
return err
}
qcr.SetEULA("yes")
if opts.MongodbUri != "" {
qcr.Spec.AddToSecrets("qliksense", "mongodbUri", opts.MongodbUri, "")
}
if opts.StorageClass != "" {
qcr.Spec.StorageClassName = opts.StorageClass
}
if opts.RotateKeys != "" {
qcr.Spec.RotateKeys = opts.RotateKeys
}
// for debugging purpose
if opts.DryRun {
// generate patches
qcr.Spec.RotateKeys = "None"
userHomeDir, _ := homedir.Dir()
fmt.Println("Generating patches only")
cr.GeneratePatches(&qcr.KApiCr, path.Join(userHomeDir, ".kube", "config"))
return nil
}
qConfig.WriteCurrentContextCR(qcr)
if installed, err := q.CheckAllCrdsInstalled(); err != nil {
fmt.Println("error verifying whether CRDs are installed", err)
return err
} else if !installed {
return errors.New(`please install CRDs by executing: $ qliksense crds install`)
}
if err := applyImagePullSecret(qConfig); err != nil {
return err
}
//CRD will be installed outside of operator
//install operator controller into the namespace
fmt.Println("Installing operator controller")
if operatorControllerString, err := q.getProcessedOperatorControllerString(qcr); err != nil {
fmt.Println("error extracting/transforming operator controller", err)
return err
} else if err := qapi.KubectlApply(operatorControllerString, ""); err != nil {
fmt.Println("cannot do kubectl apply on operator controller", err)
return err
}
// create patch dependent resources
fmt.Println("Installing resources used by the kuztomize patch")
if err := q.createK8sResourceBeforePatch(qcr); err != nil {
return err
}
if qcr.Spec.OpsRunner != nil {
// fetching and applying manifest will be in the operator controller
// get decrypted cr
if dcr, err := qConfig.GetDecryptedCr(qcr); err != nil {
return err
} else {
return q.applyCR(dcr)
}
}
if !qcr.IsRepoExist() {
if err := fetchAndUpdateCR(qConfig, version); err != nil {
return err
}
}
qcr, err = qConfig.GetCurrentCR()
if err != nil {
fmt.Println("cannot get the current-context cr", err)
return err
} else if qcr.Spec.GetManifestsRoot() == "" {
return errors.New("cannot get the manifest root. Use qliksense fetch <version> or qliksense set manifestsRoot")
}
// install generated manifests into cluster
fmt.Println("Installing generated manifests into the cluster")
if dcr, err := qConfig.GetDecryptedCr(qcr); err != nil {
return err
} else {
if IsQliksenseInstalled(dcr.GetName()) {
return q.UpgradeQK8s(cleanPatchFiles)
}
if err := q.applyConfigToK8s(dcr); err != nil {
fmt.Println("cannot do kubectl apply on manifests")
return err
} else {
return q.applyCR(dcr)
}
}
}
func (q *Qliksense) getProcessedOperatorControllerString(qcr *qapi.QliksenseCR) (string, error) {
operatorControllerString := q.GetOperatorControllerString()
if imageRegistry := qcr.Spec.GetImageRegistry(); imageRegistry != "" {
return kustomizeForImageRegistry(operatorControllerString, pullSecretName,
path.Join(qliksenseOperatorImageRepo, qliksenseOperatorImageName),
path.Join(imageRegistry, qliksenseOperatorImageName))
}
return operatorControllerString, nil
}
func applyImagePullSecret(qConfig *qapi.QliksenseConfig) error {
if pullDockerConfigJsonSecret, err := qConfig.GetPullDockerConfigJsonSecret(); err == nil {
if dockerConfigJsonSecretYaml, err := pullDockerConfigJsonSecret.ToYaml(""); err != nil {
return err
} else if err := qapi.KubectlApply(string(dockerConfigJsonSecretYaml), ""); err != nil {
return err
}
}
return nil
}
func kustomizeForImageRegistry(resources, dockerConfigJsonSecretName, name, newName string) (string, error) {
dir, err := ioutil.TempDir("", "")
if err != nil {
return "", err
}
defer os.RemoveAll(dir)
if err := ioutil.WriteFile(filepath.Join(dir, "resources.yaml"), []byte(resources), os.ModePerm); err != nil {
return "", err
} else if err := ioutil.WriteFile(filepath.Join(dir, "addImagePullSecrets.yaml"), []byte(fmt.Sprintf(`
apiVersion: builtin
kind: PatchTransformer
metadata:
name: notImportantHere
patch: '[{"op": "add", "path": "/spec/template/spec/imagePullSecrets", "value": [{"name": "%v"}]}]'
target:
name: .*-operator
kind: Deployment
`, dockerConfigJsonSecretName)), os.ModePerm); err != nil {
return "", err
} else if err := ioutil.WriteFile(filepath.Join(dir, "kustomization.yaml"), []byte(fmt.Sprintf(`
resources:
- resources.yaml
transformers:
- addImagePullSecrets.yaml
images:
- name: %s
newName: %s
`, name, newName)), os.ModePerm); err != nil {
return "", err
} else if out, err := executeKustomizeBuildForFileSystem(dir, filesys.MakeFsOnDisk()); err != nil {
return "", err
} else {
return string(out), nil
}
}
func (q *Qliksense) applyCR(cr *qapi.QliksenseCR) error {
// install operator cr into cluster
//get the current context cr
fmt.Println("Installing operator CR into the cluster")
r, err := cr.GetString()
if err != nil {
return err
}
if err := qapi.KubectlApply(r, ""); err != nil {
fmt.Println("cannot do kubectl apply on operator CR")
return err
}
return nil
}
func (q *Qliksense) createK8sResourceBeforePatch(qcr *qapi.QliksenseCR) error {
for svc, nvs := range qcr.Spec.Secrets {
for _, nv := range nvs {
if isK8sSecretNeedToCreate(nv) {
fmt.Println(filepath.Join(qcr.GetK8sSecretsFolder(q.QliksenseHome), svc+".yaml"))
if secS, err := q.PrepareK8sSecret(filepath.Join(qcr.GetK8sSecretsFolder(q.QliksenseHome), svc+".yaml")); err != nil {
return err
} else {
return qapi.KubectlApply(secS, "")
}
}
}
}
return nil
}
func isK8sSecretNeedToCreate(nv config.NameValue) bool {
return nv.ValueFrom != nil
}