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add_app.go
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add_app.go
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package cmd
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/jenkins-x/jx/pkg/gits"
"github.com/jenkins-x/jx/pkg/io/secrets"
"github.com/jenkins-x/jx/pkg/vault"
"github.com/jenkins-x/jx/pkg/surveyutils"
"github.com/ghodss/yaml"
"github.com/jenkins-x/jx/pkg/helm"
"github.com/jenkins-x/jx/pkg/util"
jenkinsv1 "github.com/jenkins-x/jx/pkg/apis/jenkins.io/v1"
"github.com/jenkins-x/jx/pkg/log"
"github.com/jenkins-x/jx/pkg/kube"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"gopkg.in/AlecAivazis/survey.v1/terminal"
)
// AddAppOptions the options for the create spring command
type AddAppOptions struct {
AddOptions
GitOps bool
DevEnv *jenkinsv1.Environment
Repo string
Username string
Password string
Alias string
// allow git to be configured externally before a PR is created
ConfigureGitCallback ConfigureGitFolderFn
Namespace string
Version string
ReleaseName string
SetValues []string
ValueFiles []string
HelmUpdate bool
}
const (
optionHelmUpdate = "helm-update"
optionValues = "values"
optionSet = "set"
optionAlias = "alias"
)
const (
appsGeneratedSecretKey = "appsGeneratedSecrets"
)
const secretTemplate = `
{{- range .Values.generatedSecrets }}
apiVersion: v1
data:
{{ .key }}: {{ .value }}
kind: Secret
metadata:
name: {{ .name }}
type: Opaque
{{- end }}
`
// NewCmdAddApp creates a command object for the "create" command
func NewCmdAddApp(f Factory, in terminal.FileReader, out terminal.FileWriter, errOut io.Writer) *cobra.Command {
options := &AddAppOptions{
AddOptions: AddOptions{
CommonOptions: CommonOptions{
Factory: f,
In: in,
Out: out,
Err: errOut,
},
},
}
cmd := &cobra.Command{
Use: "app",
Short: "Adds an app",
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
}
options.addFlags(cmd, kube.DefaultNamespace, "", "")
return cmd
}
func (o *AddAppOptions) addFlags(cmd *cobra.Command, defaultNamespace string, defaultOptionRelease string, defaultVersion string) {
// Common flags
cmd.Flags().StringVarP(&o.Version, "version", "v", defaultVersion,
"The chart version to install")
cmd.Flags().StringVarP(&o.Repo, "repository", "", "",
"The repository from which the app should be installed (default specified in your dev environment)")
cmd.Flags().StringVarP(&o.Username, "username", "", "",
"The username for the repository")
cmd.Flags().StringVarP(&o.Password, "password", "", "",
"The password for the repository")
cmd.Flags().BoolVarP(&o.BatchMode, optionBatchMode, "b", false, "In batch mode the command never prompts for user input")
cmd.Flags().BoolVarP(&o.Verbose, optionVerbose, "", false, "Enable verbose logging")
cmd.Flags().StringVarP(&o.Alias, optionAlias, "", "",
"An alias to use for the app (available when using GitOps for your dev environment)")
cmd.Flags().StringVarP(&o.ReleaseName, optionRelease, "r", defaultOptionRelease,
"The chart release name (available when NOT using GitOps for your dev environment)")
cmd.Flags().BoolVarP(&o.HelmUpdate, optionHelmUpdate, "", true,
"Should we run helm update first to ensure we use the latest version (available when NOT using GitOps for your dev environment)")
cmd.Flags().StringVarP(&o.Namespace, optionNamespace, "n", defaultNamespace, "The Namespace to install into (available when NOT using GitOps for your dev environment)")
cmd.Flags().StringArrayVarP(&o.ValueFiles, optionValues, "f", []string{}, "List of locations for values files, "+
"can be local files or URLs (available when NOT using GitOps for your dev environment)")
cmd.Flags().StringArrayVarP(&o.SetValues, optionSet, "s", []string{},
"The chart set values (can specify multiple or separate values with commas: key1=val1,key2=val2) (available when NOT using GitOps for your dev environment)")
}
// Run implements this command
func (o *AddAppOptions) Run() error {
o.GitOps, o.DevEnv = o.GetDevEnv()
if o.Repo == "" {
o.Repo = o.DevEnv.Spec.TeamSettings.AppsRepository
}
if o.Repo == "" {
o.Repo = kube.DefaultChartMuseumURL
}
var vaultBasepath string
var vaultClient vault.Client
secretsLocation := o.SecretsLocation()
useVault := (secretsLocation == secrets.VaultLocationKind)
if useVault {
var err error
if o.GitOps {
gitInfo, err := gits.ParseGitURL(o.DevEnv.Spec.Source.URL)
if err != nil {
return err
}
vaultBasepath = strings.Join([]string{"gitOps", gitInfo.Organisation, gitInfo.Name}, "/")
} else {
teamName, _, err := o.TeamAndEnvironmentNames()
if err != nil {
return err
}
vaultBasepath = strings.Join([]string{"teams", teamName}, "/")
}
vaultClient, err = o.CreateSystemVaultClient("")
if err != nil {
return err
}
}
if o.GitOps {
msg := "unable to specify --%s when using GitOps for your dev environment"
if o.ReleaseName != "" {
return util.InvalidOptionf(optionRelease, o.ReleaseName, msg, optionRelease)
}
if !o.HelmUpdate {
return util.InvalidOptionf(optionHelmUpdate, o.HelmUpdate, msg, optionHelmUpdate)
}
if o.Namespace != "" && o.Namespace != kube.DefaultNamespace {
return util.InvalidOptionf(optionNamespace, o.Namespace, msg, optionNamespace)
}
if len(o.SetValues) > 0 {
return util.InvalidOptionf(optionSet, o.SetValues, msg, optionSet)
}
if len(o.ValueFiles) > 1 {
return util.InvalidOptionf(optionValues, o.SetValues,
"no more than one --%s can be specified when using GitOps for your dev environment", optionValues)
}
if !useVault {
return fmt.Errorf("cannot install apps without a vault when using GitOps for your dev environment")
}
}
if !o.GitOps {
if o.Alias != "" {
return util.InvalidOptionf(optionAlias, o.Alias,
"unable to specify --%s when NOT using GitOps for your dev environment", optionAlias)
}
}
args := o.Args
if len(args) == 0 {
return o.Cmd.Help()
}
if len(args) > 1 {
return o.Cmd.Help()
}
if o.Repo == "" {
return fmt.Errorf("must specify a repository")
}
for _, app := range args {
var version string
if o.Version != "" {
version = o.Version
}
var schema []byte
err := helm.InspectChart(app, version, o.Repo, o.Username, o.Password, o.Helm(), func(dir string) error {
if version == "" {
var err error
_, version, err = helm.LoadChartNameAndVersion(filepath.Join(dir, "Chart.yaml"))
if err != nil {
return errors.Wrapf(err, "error loading chart from %s", dir)
}
if o.Verbose {
log.Infof("No version specified so using latest version which is %s\n", util.ColorInfo(version))
}
}
schemaFile := filepath.Join(dir, "values.schema.json")
if _, err := os.Stat(schemaFile); !os.IsNotExist(err) {
schema, err = ioutil.ReadFile(schemaFile)
if err != nil {
return errors.Wrapf(err, "error reading schema file %s", schemaFile)
}
}
if schema != nil {
secrets := make([]*surveyutils.GeneratedSecret, 0)
schemaOptions := surveyutils.JSONSchemaOptions{
CreateSecret: func(name string, key string, value string) (*jenkinsv1.ResourceReference, error) {
secret := &surveyutils.GeneratedSecret{
Name: name,
Key: key,
Value: value,
}
secrets = append(secrets, secret)
return &jenkinsv1.ResourceReference{
Name: name,
Kind: "Secret",
}, nil
},
}
values, err := schemaOptions.GenerateValues(schema, []string{}, o.In, o.Out, o.Err)
if err != nil {
return errors.Wrapf(err, "error generating values for schema %s", schemaFile)
}
valuesYaml, err := yaml.JSONToYAML(values)
if err != nil {
return errors.Wrapf(err, "error converting values from json to yaml\n\n%v", values)
}
if o.Verbose {
log.Infof("Generated values.yaml:\n\n%v\n", util.ColorInfo(string(valuesYaml)))
}
var secretsYaml []byte
// We write a secret template into the chart, append the values for the generated secrets to values.yaml
if len(secrets) > 0 {
if useVault {
for _, secret := range secrets {
path := strings.Join([]string{vaultBasepath, secret.Name}, "/")
err := vault.WriteMap(vaultClient, path, map[string]interface{}{
secret.Key: secret.Value,
})
if err != nil {
return err
}
}
} else {
// For each secret, we write a file into the chart
templatesDir := filepath.Join(dir, "templates")
err = os.MkdirAll(templatesDir, 0700)
if err != nil {
return err
}
fileName := filepath.Join(templatesDir, "app-generated-secret-template.yaml")
err := ioutil.WriteFile(fileName, []byte(secretTemplate), 0755)
if err != nil {
return err
}
allSecrets := map[string][]*surveyutils.GeneratedSecret{
appsGeneratedSecretKey: secrets,
}
secretsYaml, err = yaml.Marshal(allSecrets)
if err != nil {
return err
}
}
}
if err != nil {
return err
}
if len(o.ValueFiles) > 0 && schema != nil {
log.Warnf("values.yaml specified by --valuesFiles will be used despite presence of schema in app")
} else if schema != nil {
valuesFile, err := ioutil.TempFile("", fmt.Sprintf("%s-values.yaml", app))
defer func() {
err = valuesFile.Close()
if err != nil {
log.Warnf("Error closing %s because %v\n", valuesFile.Name(), err)
}
err = util.DeleteFile(valuesFile.Name())
if err != nil {
log.Warnf("Error deleting %s because %v\n", valuesFile.Name(), err)
}
}()
if err != nil {
return err
}
_, err = valuesFile.Write(valuesYaml)
if err != nil {
return err
}
o.ValueFiles = []string{
valuesFile.Name(),
}
if !o.GitOps {
if len(secretsYaml) > 0 {
secretsFile, err := ioutil.TempFile("", fmt.Sprintf("%s-secrets.yaml", app))
defer func() {
err = secretsFile.Close()
if err != nil {
log.Warnf("Error closing %s because %v\n", secretsFile.Name(), err)
}
err = util.DeleteFile(secretsFile.Name())
if err != nil {
log.Warnf("Error deleting %s because %v\n", secretsFile.Name(), err)
}
}()
if err != nil {
return err
}
_, err = secretsFile.Write(secretsYaml)
if err != nil {
return err
}
o.ValueFiles = append(o.ValueFiles, secretsFile.Name())
}
}
}
if err != nil {
return err
}
}
if o.GitOps {
err := o.createPR(app, dir, version)
if err != nil {
return err
}
} else {
err := o.installApp(app, dir, version)
if err != nil {
return err
}
}
return nil
})
if err != nil {
return err
}
}
return nil
}
func (o *AddAppOptions) createPR(app string, dir string, version string) error {
branchNameText := "add-app-" + app + "-" + version
title := fmt.Sprintf("Add %s %s", app, version)
message := fmt.Sprintf("Add app %s %s", app, version)
pullRequestInfo, err := o.createEnvironmentPullRequest(o.DevEnv, o.CreateAddRequirementFn(app, o.Alias, version,
o.Repo, o.ValueFiles, dir),
&branchNameText, &title,
&message,
nil, o.ConfigureGitCallback)
if err != nil {
return errors.Wrapf(err, "creating pr for %s", app)
}
log.Infof("Added app via Pull Request %s\n", pullRequestInfo.PullRequest.URL)
return nil
}
func (o *AddAppOptions) installApp(name string, chart string, version string) error {
err := o.ensureHelm()
if err != nil {
return errors.Wrap(err, "failed to ensure that helm is present")
}
setValues := make([]string, 0)
for _, vs := range o.SetValues {
setValues = append(setValues, strings.Split(vs, ",")...)
}
err = o.installChartOptions(helm.InstallChartOptions{
ReleaseName: name,
Chart: chart,
Version: version,
Ns: o.Namespace,
HelmUpdate: o.HelmUpdate,
SetValues: setValues,
ValueFiles: o.ValueFiles,
Repository: o.Repo,
Username: o.Username,
Password: o.Password,
})
if err != nil {
return fmt.Errorf("failed to install name %s: %v", name, err)
}
// Attach the secrets to the name CRD
err = o.OnAppInstall(name, version)
if err != nil {
return errors.Wrapf(err, "running postinstall hooks for %s version %s", name, version)
}
log.Infof("Successfully installed %s %s\n", util.ColorInfo(name), util.ColorInfo(version))
return nil
}