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install.go
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install.go
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package apps
import (
"encoding/base64"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"time"
"github.com/jenkins-x/jx/v2/pkg/kube/naming"
rbacv1 "k8s.io/api/rbac/v1"
corev1 "k8s.io/api/core/v1"
"github.com/jenkins-x/jx/v2/pkg/kube"
"github.com/google/uuid"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
jenkinsv1 "github.com/jenkins-x/jx-api/pkg/apis/jenkins.io/v1"
"github.com/jenkins-x/jx-api/pkg/client/clientset/versioned"
"github.com/jenkins-x/jx/v2/pkg/environments"
"github.com/jenkins-x/jx/v2/pkg/gits"
"github.com/jenkins-x/jx/v2/pkg/vault"
"k8s.io/client-go/kubernetes"
"github.com/jenkins-x/jx-logging/pkg/log"
"github.com/jenkins-x/jx/v2/pkg/helm"
"github.com/jenkins-x/jx/v2/pkg/util"
"github.com/pkg/errors"
)
// InstallOptions are shared options for installing, removing or upgrading apps for either GitOps or HelmOps
type InstallOptions struct {
Helmer helm.Helmer
KubeClient kubernetes.Interface
InstallTimeout string
JxClient versioned.Interface
Namespace string
EnvironmentCloneDir string
GitProvider gits.GitProvider
Gitter gits.Gitter
Verbose bool
DevEnv *jenkinsv1.Environment
BatchMode bool
IOFileHandles util.IOFileHandles
GitOps bool
TeamName string
BasePath string
VaultClient vault.Client
AutoMerge bool
SecretsScheme string
valuesFiles *environments.ValuesFiles // internal variable used to track, most be passed in
}
// AddApp adds the app at a particular version (
// or latest if not specified) from the repository with username and password. A releaseName can be specified.
// Values can be passed with in files or as a slice of name=value pairs. An alias can be specified.
// GitOps or HelmOps will be automatically chosen based on the o.GitOps flag
func (o *InstallOptions) AddApp(app string, version string, repository string, username string, password string,
releaseName string, valuesFiles []string, setValues []string, alias string, helmUpdate bool) error {
o.valuesFiles = &environments.ValuesFiles{
Items: valuesFiles,
}
username, password, err := helm.DecorateWithCredentials(repository, username, password, o.VaultClient, o.IOFileHandles)
if err != nil {
return errors.Wrapf(err, "locating credentials for %s", repository)
}
_, err = helm.AddHelmRepoIfMissing(repository, "", username, password, o.Helmer, o.VaultClient, o.IOFileHandles)
if err != nil {
return errors.Wrapf(err, "adding helm repo")
}
chartName, err := o.resolvePrefixesAgainstRepos(repository, app)
if err != nil {
return errors.WithStack(err)
}
if chartName == "" {
return errors.Errorf("unable to find %s in %s", app, repository)
}
// The chart inspector allows us to operate on the unpacked chart.
// We need to ask questions then as we have access to the schema, and can add secrets.
interrogateChartFn := o.createInterrogateChartFn(version, chartName, repository, username, password, alias, true)
// Called whilst the chart is unpacked and modifiable
installAppFunc := func(dir string) error {
//Ask the questions, this is an install, so no existing values
chartDetails, err := interrogateChartFn(dir, make(map[string]interface{}))
defer chartDetails.Cleanup()
if err != nil {
return err
}
if o.GitOps {
opts := GitOpsOptions{
InstallOptions: o,
}
err = opts.AddApp(chartDetails.Name, dir, chartDetails.Version, repository, alias, o.AutoMerge)
if err != nil {
return errors.Wrapf(err, "adding app %s version %s with alias %s using gitops", chartName, version, alias)
}
} else {
opts := HelmOpsOptions{
InstallOptions: o,
}
if releaseName == "" {
releaseName = fmt.Sprintf("%s-%s", o.Namespace, chartDetails.Name)
}
chartFromGit, _ := helm.IsGitURL(chartName)
if helm.IsLocal(chartName) || chartFromGit {
// We need to manually build the dependencies
err = opts.Helmer.BuildDependency()
if err != nil {
return errors.Wrapf(err, "building dependencies for %s", chartName)
}
}
err = opts.AddApp(chartName, dir, chartDetails.Name, chartDetails.Version, chartDetails.Values, repository,
username, password,
releaseName,
setValues,
helmUpdate)
if err != nil {
errStr := fmt.Sprintf("adding app %s version %s using helm", chartName, version)
if alias != "" {
errStr = fmt.Sprintf("%s with alias %s", errStr, alias)
}
errStr = fmt.Sprintf("%s with helm", errStr)
return errors.Wrap(err, errStr)
}
}
return nil
}
// Do the actual work
return helm.InspectChart(chartName, version, repository, username, password, o.Helmer, installAppFunc)
}
//GetApps gets a list of installed apps
func (o *InstallOptions) GetApps(appNames []string) (apps *jenkinsv1.AppList, err error) {
prefixes := o.getPrefixes()
in := make([]string, 0)
appsMap := make(map[string]bool)
for _, prefix := range prefixes {
for _, appName := range appNames {
completeAppName := fmt.Sprintf("%s%s", prefix, appName)
in = append(in, completeAppName)
appsMap[completeAppName] = true
}
}
helmOpts := HelmOpsOptions{
InstallOptions: o,
}
if o.GitOps {
opts := GitOpsOptions{
InstallOptions: o,
}
return opts.GetApps(appsMap, helmOpts.getAppsFromCRDAPI)
}
return helmOpts.getAppsFromCRDAPI(in)
}
//DeleteApp deletes the app. An alias and releaseName can be specified. GitOps or HelmOps will be automatically chosen based on the o.GitOps flag
func (o *InstallOptions) DeleteApp(app string, alias string, releaseName string, purge bool) error {
o.valuesFiles = &environments.ValuesFiles{
Items: make([]string, 0),
}
apps, err := o.GetApps([]string{app})
if err != nil {
return errors.WithStack(err)
}
if len(apps.Items) == 0 {
return errors.Errorf("No app found for %s", app)
}
chartName := apps.Items[0].Labels[helm.LabelAppName]
if o.GitOps {
opts := GitOpsOptions{
InstallOptions: o,
}
err := opts.DeleteApp(chartName, alias, o.AutoMerge)
if err != nil {
return err
}
} else {
opts := HelmOpsOptions{
InstallOptions: o,
}
err = opts.DeleteApp(chartName, releaseName, true)
if err != nil {
return err
}
}
return nil
}
// UpgradeApp upgrades the app (or all apps if empty) to a particular version (
// or the latest if not specified) from the repository with username and password. An alias can be specified.
// GitOps or HelmOps will be automatically chosen based on the o.GitOps flag
func (o *InstallOptions) UpgradeApp(app string, version string, repository string, username string, password string,
releaseName string, alias string, update bool, askExisting bool) error {
o.valuesFiles = &environments.ValuesFiles{
Items: make([]string, 0),
}
if releaseName == "" {
releaseName = fmt.Sprintf("%s-%s", o.Namespace, app)
}
username, password, err := helm.DecorateWithCredentials(repository, username, password, o.VaultClient, o.IOFileHandles)
if err != nil {
return errors.Wrapf(err, "locating credentials for %s", repository)
}
_, err = helm.AddHelmRepoIfMissing(repository, "", username, password, o.Helmer, o.VaultClient, o.IOFileHandles)
if err != nil {
return errors.Wrapf(err, "adding helm repo")
}
chartName := ""
// empty app means upgrade all
if app != "" {
chartName, err = o.resolvePrefixesAgainstRepos(repository, app)
if err != nil {
return errors.WithStack(err)
}
if chartName == "" {
return errors.Errorf("unable to find %s in %s", chartName, repository)
}
}
interrogateChartFunc := o.createInterrogateChartFn(version, app, repository, username, password, alias, askExisting)
// The chart inspector allows us to operate on the unpacked chart.
// We need to ask questions then as we have access to the schema, and can add secrets.
if o.GitOps {
opts := GitOpsOptions{
InstallOptions: o,
}
// Asking questions is a bit more complex in this case as the existing values file is in the environment
// repo, so we need to ask questions once we have that repo available
err := opts.UpgradeApp(chartName, version, repository, username, password, alias, interrogateChartFunc, o.AutoMerge)
if err != nil {
return err
}
} else {
upgradeAppFunc := func(dir string) error {
// Try to load existing answers from the apps CRD
appCrdName := fmt.Sprintf("%s-%s", releaseName, chartName)
appResource, err := o.JxClient.JenkinsV1().Apps(o.Namespace).Get(appCrdName, metav1.GetOptions{})
if err != nil {
return errors.Wrapf(err, "getting App CRD %s", appResource.Name)
}
var existingValues map[string]interface{}
if appResource.Annotations != nil {
if encodedValues, ok := appResource.Annotations[ValuesAnnotation]; ok && encodedValues != "" {
existingValuesBytes, err := base64.StdEncoding.DecodeString(encodedValues)
if err != nil {
log.Logger().Warnf("Error decoding base64 encoded string from %s on %s\n%s", ValuesAnnotation,
appCrdName, encodedValues)
}
err = json.Unmarshal(existingValuesBytes, &existingValues)
if err != nil {
return errors.Wrapf(err, "unmarshaling %s", string(existingValuesBytes))
}
}
}
// Ask the questions
chartDetails, err := interrogateChartFunc(dir, existingValues)
defer chartDetails.Cleanup()
if err != nil {
return errors.Wrapf(err, "asking questions")
}
opts := HelmOpsOptions{
InstallOptions: o,
}
err = opts.UpgradeApp(chartName, version, repository, username, password, releaseName, alias, update)
if err != nil {
return err
}
return nil
}
// Do the actual work
err := helm.InspectChart(chartName, version, repository, username, password, o.Helmer, upgradeAppFunc)
if err != nil {
return err
}
}
return nil
}
// ChartDetails are details about a chart returned by the chart interrogator
type ChartDetails struct {
Values []byte
Version string
Name string
Cleanup func()
}
func (o *InstallOptions) createInterrogateChartFn(version string, chartName string, repository string, username string,
password string, alias string, askExisting bool) func(chartDir string,
existing map[string]interface{}) (*ChartDetails, error) {
return func(chartDir string, existing map[string]interface{}) (*ChartDetails, error) {
var schema []byte
chartDetails := ChartDetails{
Cleanup: func() {},
}
chartyamlpath := filepath.Join(chartDir, "Chart.yaml")
if _, err := os.Stat(chartyamlpath); err == nil {
loadedName, loadedVersion, err := helm.LoadChartNameAndVersion(chartyamlpath)
if err != nil {
return &chartDetails, errors.Wrapf(err, "error loading chart from %s", chartDir)
}
chartDetails.Name = loadedName
chartDetails.Version = loadedVersion
} else {
chartDetails.Name = chartName
chartDetails.Version = version
}
requirements, err := helm.LoadRequirementsFile(filepath.Join(chartDir, helm.RequirementsFileName))
if err != nil {
return &chartDetails, errors.Wrapf(err, "loading requirements.yaml for %s", chartDir)
}
for _, requirement := range requirements.Dependencies {
// repositories that start with an @ are aliases to helm repo names
if !strings.HasPrefix(requirement.Repository, "@") {
_, err := helm.AddHelmRepoIfMissing(requirement.Repository, "", "", "", o.Helmer, o.VaultClient, o.IOFileHandles)
if err != nil {
return &chartDetails, errors.Wrapf(err, "")
}
}
}
if version == "" {
if o.Verbose {
log.Logger().Infof("No version specified so using latest version which is %s",
util.ColorInfo(chartDetails.Version))
}
}
schemaFile := filepath.Join(chartDir, "values.schema.json")
if _, err := os.Stat(schemaFile); !os.IsNotExist(err) {
schema, err = ioutil.ReadFile(schemaFile)
if err != nil {
return &chartDetails, errors.Wrapf(err, "error reading schema file %s", schemaFile)
}
}
var values []byte
if schema != nil {
if o.valuesFiles != nil && len(o.valuesFiles.Items) > 0 {
log.Logger().Warnf("values.yaml specified by --valuesFiles will be used despite presence of schema in app")
}
appResource, _, err := environments.LocateAppResource(o.Helmer, chartDir, chartDetails.Name)
if err != nil {
return &chartDetails, errors.Wrapf(err, "locating app resource in %s", chartDir)
}
if appResource.Spec.SchemaPreprocessor != nil {
// Generate a new UUID and get it's string form for use later
id := uuid.New().String()
cmName := toValidName(chartDetails.Name, "schema", id)
cm := corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: cmName,
},
Data: map[string]string{
"values.schema.json": string(schema),
},
}
_, err := o.KubeClient.CoreV1().ConfigMaps(o.Namespace).Create(&cm)
defer func() {
err := o.KubeClient.CoreV1().ConfigMaps(o.Namespace).Delete(cmName, &metav1.DeleteOptions{})
if err != nil {
log.Logger().Errorf("error removing configmap %s: %v", cmName, err)
}
}()
if err != nil {
return &chartDetails, errors.Wrapf(err, "creating configmap %s for values.schema."+
"json preprocessing", cmName)
}
// We launch this as a pod in the cluster, mounting the values.schema.json
if appResource.Spec.SchemaPreprocessor.Env == nil {
appResource.Spec.SchemaPreprocessor.Env = make([]corev1.EnvVar, 0)
}
appResource.Spec.SchemaPreprocessor.Env = append(appResource.Spec.SchemaPreprocessor.
Env, corev1.EnvVar{
Name: "VALUES_SCHEMA_JSON_CONFIG_MAP_NAME",
Value: cmName,
})
serviceAccountName := toValidName(chartName, "schema-sa%s", id)
role := &rbacv1.Role{
ObjectMeta: metav1.ObjectMeta{
Name: toValidName(chartName, "schema-role", id),
},
Rules: []rbacv1.PolicyRule{
{
APIGroups: []string{
corev1.GroupName,
},
Resources: []string{
"configmaps",
},
Verbs: []string{
"get",
"update",
"delete",
},
ResourceNames: []string{
cmName,
},
},
},
}
if appResource.Spec.SchemaPreprocessor.Name == "" {
appResource.Spec.SchemaPreprocessor.Name = "preprocessor"
}
if appResource.Spec.SchemaPreprocessorRole != nil {
role = appResource.Spec.SchemaPreprocessorRole
}
_, err = o.KubeClient.RbacV1().Roles(o.Namespace).Create(role)
defer func() {
err := o.KubeClient.RbacV1().Roles(o.Namespace).Delete(role.Name, &metav1.DeleteOptions{})
if err != nil {
log.Logger().Errorf("Error deleting role %s created for values.schema.json preprocessing: %v",
role.Name, err)
}
}()
if err != nil {
return &chartDetails, errors.Wrapf(err, "creating role %s for values.schema.json preprocessing",
role.Name)
}
serviceAccount := &corev1.ServiceAccount{
ObjectMeta: metav1.ObjectMeta{
Name: serviceAccountName,
},
}
_, err = o.KubeClient.CoreV1().ServiceAccounts(o.Namespace).Create(serviceAccount)
defer func() {
err := o.KubeClient.CoreV1().ServiceAccounts(o.Namespace).Delete(serviceAccountName, &metav1.DeleteOptions{})
if err != nil {
log.Logger().Errorf("Error deleting serviceaccount %s created for values.schema.json preprocessing: %v",
serviceAccountName, err)
}
}()
if err != nil {
return &chartDetails, errors.Wrapf(err, "creating serviceaccount %s for values.schema."+
"json preprocessing: %v", serviceAccountName, err)
}
roleBinding := rbacv1.RoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: toValidName(chartName, "schema-rolebinding", id),
},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.GroupName,
Name: role.Name,
Kind: "Role",
},
Subjects: []rbacv1.Subject{
{
Kind: rbacv1.ServiceAccountKind,
Name: serviceAccountName,
Namespace: o.Namespace,
APIGroup: corev1.GroupName,
},
},
}
_, err = o.KubeClient.RbacV1().RoleBindings(o.Namespace).Create(&roleBinding)
defer func() {
err := o.KubeClient.RbacV1().RoleBindings(o.Namespace).Delete(roleBinding.Name,
&metav1.DeleteOptions{})
if err != nil {
log.Logger().Errorf("Error deleting rolebinding %s for values.schema.json preprocessing: %v",
roleBinding.Name, err)
}
}()
pod := corev1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: toValidName(chartName, "values-preprocessor", id),
},
Spec: corev1.PodSpec{
Containers: []corev1.Container{
*appResource.Spec.SchemaPreprocessor,
},
ServiceAccountName: serviceAccountName,
RestartPolicy: corev1.RestartPolicyNever,
},
}
log.Logger().Infof("Preparing questions to configure %s. "+
"If this is the first time you have installed the app, this may take a couple of minutes.",
chartDetails.Name)
_, err = o.KubeClient.CoreV1().Pods(o.Namespace).Create(&pod)
defer func() {
err := o.KubeClient.CoreV1().Pods(o.Namespace).Delete(pod.Name,
&metav1.DeleteOptions{})
if err != nil {
log.Logger().Errorf("Error deleting pod %s for values.schema.json preprocessing: %v",
pod.Name, err)
}
}()
if err != nil {
return &chartDetails, errors.Wrapf(err, "creating pod %s for values.schema.json proprocessing",
pod.Name)
}
timeout, err := time.ParseDuration(fmt.Sprintf("%ss", o.InstallTimeout))
if err != nil {
return &chartDetails, errors.Wrapf(err, "invalid timeout %s", o.InstallTimeout)
}
err = kube.WaitForPodNameToBeComplete(o.KubeClient, o.Namespace, pod.Name, timeout)
if err != nil {
return &chartDetails, errors.Wrapf(err, "waiting for %s to complete for values.schema."+
"json preprocessing",
pod.Name)
}
completePod, err := o.KubeClient.CoreV1().Pods(o.Namespace).Get(pod.Name, metav1.GetOptions{})
if err != nil {
return &chartDetails, errors.Wrapf(err, "getting pod %s", pod.Name)
}
if kube.PodStatus(completePod) == string(corev1.PodFailed) {
log.Logger().Errorf("Pod Log")
log.Logger().Errorf("-----------")
err := kube.TailLogs(o.Namespace, pod.Name, appResource.Spec.SchemaPreprocessor.Name, o.IOFileHandles.Err, o.IOFileHandles.Out)
log.Logger().Errorf("-----------")
if err != nil {
return &chartDetails, errors.Wrapf(err, "getting pod logs for %s container %s", pod.Name,
appResource.Spec.SchemaPreprocessor.Name)
}
return &chartDetails, errors.Errorf("failed to prepare questions")
}
log.Logger().Infof("Questions prepared.")
newCm, err := o.KubeClient.CoreV1().ConfigMaps(o.Namespace).Get(cmName, metav1.GetOptions{})
if err != nil {
return &chartDetails, errors.Wrapf(err, "getting configmap %s for values.schema."+
"json preprocessing", cmName)
}
if v, ok := newCm.Data["values.schema.json"]; !ok {
return &chartDetails, errors.Errorf("no key values.schema.json in configmap %s for values.schema."+
"json preprocessing", cmName)
} else {
schema = []byte(v)
}
}
gitOpsURL := ""
if o.GitOps {
gitOpsURL = o.DevEnv.Spec.Source.URL
}
if schema != nil {
valuesFileName, cleanup, err := ProcessValues(schema, chartName, gitOpsURL, o.TeamName, o.BasePath, o.BatchMode, askExisting, o.VaultClient, existing, o.SecretsScheme, o.IOFileHandles, o.Verbose)
chartDetails.Cleanup = cleanup
if err != nil {
return &chartDetails, errors.WithStack(err)
}
if valuesFileName != "" {
o.valuesFiles.Items = append(o.valuesFiles.Items, valuesFileName)
}
values, err = ioutil.ReadFile(valuesFileName)
if err != nil {
return &chartDetails, errors.Wrapf(err, "reading %s", valuesFileName)
}
}
}
chartDetails.Values = values
return &chartDetails, nil
}
}
func toValidName(appName string, name string, id string) string {
base := fmt.Sprintf("%s-%s", name, appName)
l := len(base)
if l > 20 {
l = 20
}
return naming.ToValidName(fmt.Sprintf("%s-%s", base[0:l], id))
}
func (o *InstallOptions) getPrefixes() []string {
// Set the default prefixes
prefixes := o.DevEnv.Spec.TeamSettings.AppsPrefixes
if prefixes == nil {
prefixes = []string{
"jx-app-",
}
}
prefixes = append(prefixes, "")
return prefixes
}
func (o *InstallOptions) resolvePrefixesAgainstRepos(repository string, chartName string) (string, error) {
prefixes := o.getPrefixes()
// Create the short chart name
repos, err := o.Helmer.ListRepos()
if err != nil {
return "", errors.Wrapf(err, "listing helm repos")
}
possiblesRepoNames := make([]string, 0)
for repo, url := range repos {
if url == repository {
possiblesRepoNames = append(possiblesRepoNames, repo)
}
}
charts, err := o.Helmer.SearchCharts("", false)
if err != nil {
return "", errors.Wrapf(err, "searching charts")
}
for _, prefix := range prefixes {
for _, possibleRepoName := range possiblesRepoNames {
fullName := fmt.Sprintf("%s/%s%s", possibleRepoName, prefix, chartName)
for _, chart := range charts {
if chart.Name == fullName {
// Chart found!
return fmt.Sprintf("%s%s", prefix, chartName), nil
}
}
}
}
return chartName, nil
}