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upgrade_ingress.go
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upgrade_ingress.go
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package cmd
import (
"fmt"
"io"
"strings"
"github.com/jenkins-x/jx/pkg/gits"
"github.com/jenkins-x/jx/pkg/kube/services"
"github.com/pkg/errors"
"github.com/jenkins-x/jx/pkg/jx/cmd/templates"
"github.com/jenkins-x/jx/pkg/kube"
"github.com/jenkins-x/jx/pkg/log"
"github.com/jenkins-x/jx/pkg/util"
"github.com/spf13/cobra"
"gopkg.in/AlecAivazis/survey.v1"
"gopkg.in/AlecAivazis/survey.v1/terminal"
"k8s.io/api/extensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var (
upgradeIngressLong = templates.LongDesc(`
Upgrades the Jenkins X Ingress rules
`)
upgradeIngressExample = templates.Examples(`
# Upgrades the Jenkins X Ingress rules
jx upgrade ingress
`)
)
const (
CertManagerDeployment = "cert-manager"
CertManagerNamespace = "cert-manager"
Exposecontroller = "exposecontroller"
)
// UpgradeIngressOptions the options for the create spring command
type UpgradeIngressOptions struct {
CreateOptions
SkipCertManager bool
Cluster bool
Namespaces []string
Version string
TargetNamespaces []string
Services []string
SkipResourcesUpdate bool
IngressConfig kube.IngressConfig
}
// NewCmdUpgradeIngress defines the command
func NewCmdUpgradeIngress(f Factory, in terminal.FileReader, out terminal.FileWriter, errOut io.Writer) *cobra.Command {
commonOptions := CommonOptions{
Factory: f,
In: in,
Out: out,
Err: errOut,
}
options := &UpgradeIngressOptions{
CreateOptions: CreateOptions{
CommonOptions: commonOptions,
},
}
cmd := &cobra.Command{
Use: "ingress",
Short: "Upgrades Ingress rules",
Aliases: []string{"ing"},
Long: upgradeIngressLong,
Example: upgradeIngressExample,
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
}
options.addFlags(cmd)
options.addCommonFlags(cmd)
return cmd
}
func (o *UpgradeIngressOptions) addFlags(cmd *cobra.Command) {
cmd.Flags().BoolVarP(&o.Cluster, "cluster", "", false, "Enable cluster wide Ingress upgrade")
cmd.Flags().StringArrayVarP(&o.Namespaces, "namespaces", "", []string{}, "Namespaces to upgrade")
cmd.Flags().BoolVarP(&o.SkipCertManager, "skip-certmanager", "", false, "Skips certmanager installation")
cmd.Flags().StringArrayVarP(&o.Services, "services", "", []string{}, "Services to upgrdde")
cmd.Flags().BoolVarP(&o.SkipResourcesUpdate, "skip-resources-update", "", false, "Skips the update of jx related resources such as webhook or Jenkins URL")
}
// Run implements the command
func (o *UpgradeIngressOptions) Run() error {
_, _, err := o.KubeClient()
if err != nil {
return fmt.Errorf("cannot connect to Kubernetes cluster: %v", err)
}
o.devNamespace, _, err = kube.GetDevNamespace(o.KubeClientCached, o.currentNamespace)
if err != nil {
return errors.Wrap(err, "getting the dev namesapce")
}
previousWebHookEndpoint := ""
if !o.SkipResourcesUpdate {
previousWebHookEndpoint, err = o.GetWebHookEndpoint()
if err != nil {
return errors.Wrap(err, "getting the webhook endpoint")
}
}
// if existing ingress exist in the namespaces ask do you want to delete them?
ingressToDelete, err := o.getExistingIngressRules()
if err != nil {
return errors.Wrap(err, "getting the existing ingress rules")
}
// wizard to ask for config values
err = o.confirmExposecontrollerConfig()
if err != nil {
return errors.Wrap(err, "configure exposecontroller")
}
// confirm values
if !o.BatchMode {
if !util.Confirm(fmt.Sprintf("Using config values %v, ok?", o.IngressConfig), true, "", o.In, o.Out, o.Err) {
log.Infof("Terminating\n")
return nil
}
}
// save details to a configmap
_, err = kube.SaveAsConfigMap(o.KubeClientCached, kube.ConfigMapIngressConfig, o.devNamespace, o.IngressConfig)
if err != nil {
return errors.Wrap(err, "saving ingress config into a configmap")
}
err = o.CleanServiceAnnotations(o.Services...)
if err != nil {
return errors.Wrap(err, "cleaning service annotations")
}
// if tls create CRDs
if o.IngressConfig.TLS {
err = o.ensureCertmanagerSetup()
if err != nil {
return errors.Wrap(err, "ensure cert-manager setup")
}
}
// annotate any service that has expose=true with correct certmanager staging / prod annotation
err = o.AnnotateExposedServicesWithCertManager(o.Services...)
if err != nil {
return errors.Wrap(err, "annotating the exposed service with cert-manager")
}
// delete ingress
for name, namespace := range ingressToDelete {
log.Infof("Deleting ingress %s/%s\n", namespace, name)
err := o.KubeClientCached.ExtensionsV1beta1().Ingresses(namespace).Delete(name, &metav1.DeleteOptions{})
if err != nil {
return fmt.Errorf("cannot delete ingress rule %s in namespace %s: %v", name, namespace, err)
}
}
err = o.recreateIngressRules()
if err != nil {
return errors.Wrap(err, "recreating the ingress rules")
}
if !o.SkipResourcesUpdate {
o.updateResources(previousWebHookEndpoint)
}
log.Success("Ingress rules recreated\n")
// todo wait for certs secrets to update ingress rules?
if o.IngressConfig.TLS {
log.Warn("It can take around 5 minutes for Cert Manager to get certificates from Lets Encrypt and update Ingress rules\n")
log.Info("Use the following commands to diagnose any issues:\n")
log.Infof("jx logs %s -n %s\n", CertManagerDeployment, CertManagerNamespace)
log.Info("kubectl describe certificates\n")
log.Info("kubectl describe issuers\n\n")
}
return nil
}
func (o *UpgradeIngressOptions) updateResources(previousWebHookEndpoint string) error {
_, _, err := o.JXClient()
if err != nil {
return errors.Wrap(err, "failed to get jxclient")
}
isProwEnabled, err := o.isProw()
if err != nil {
return errors.Wrap(err, "checking if is prow")
}
if !isProwEnabled {
err = o.updateJenkinsURL(o.TargetNamespaces)
if err != nil {
return errors.Wrap(err, "upgrade jenkins URL")
}
}
updatedWebHookEndpoint, err := o.GetWebHookEndpoint()
if err != nil {
return errors.Wrap(err, "retrieving the webhook endpoint")
}
log.Infof("Previous webhook endpoint %s\n", previousWebHookEndpoint)
log.Infof("Updated webhook endpoint %s\n", updatedWebHookEndpoint)
updateWebHooks := true
if !o.BatchMode {
if !util.Confirm("Do you want to update all existing webhooks?", true, "", o.In, o.Out, o.Err) {
updateWebHooks = false
}
}
if updateWebHooks {
o.updateWebHooks(previousWebHookEndpoint, updatedWebHookEndpoint)
}
return nil
}
func (o *UpgradeIngressOptions) isIngressForServices(ingress *v1beta1.Ingress) bool {
services := o.Services
if len(services) == 0 {
// allow all ingresses if no services filter is defined
return true
}
rules := ingress.Spec.Rules
for _, rule := range rules {
http := rule.IngressRuleValue.HTTP
if http == nil {
continue
}
for _, path := range http.Paths {
service := path.Backend.ServiceName
i := util.StringArrayIndex(services, service)
if i >= 0 {
return true
}
}
}
return false
}
func (o *UpgradeIngressOptions) getExistingIngressRules() (map[string]string, error) {
surveyOpts := survey.WithStdio(o.In, o.Out, o.Err)
existingIngressNames := map[string]string{}
var confirmMessage string
if o.Cluster {
confirmMessage = "Existing ingress rules found in the cluster. Confirm to delete all and recreate them"
ings, err := o.KubeClientCached.ExtensionsV1beta1().Ingresses("").List(metav1.ListOptions{})
if err != nil {
return existingIngressNames, fmt.Errorf("cannot list all ingresses in cluster: %v", err)
}
for _, i := range ings.Items {
if i.Annotations[services.ExposeGeneratedByAnnotation] == Exposecontroller {
if o.isIngressForServices(&i) {
existingIngressNames[i.Name] = i.Namespace
}
}
}
nsList, err := o.KubeClientCached.CoreV1().Namespaces().List(metav1.ListOptions{})
for _, n := range nsList.Items {
o.TargetNamespaces = append(o.TargetNamespaces, n.Name)
}
} else if len(o.Namespaces) > 0 {
confirmMessage = fmt.Sprintf("Existing ingress rules found in namespaces %v namespace. Confirm to delete and recreate them", o.Namespaces)
// loop round each
for _, n := range o.Namespaces {
ings, err := o.KubeClientCached.ExtensionsV1beta1().Ingresses(n).List(metav1.ListOptions{})
if err != nil {
return existingIngressNames, fmt.Errorf("cannot list all ingresses in cluster: %v", err)
}
for _, i := range ings.Items {
if i.Annotations[services.ExposeGeneratedByAnnotation] == Exposecontroller {
if o.isIngressForServices(&i) {
existingIngressNames[i.Name] = i.Namespace
}
}
}
o.TargetNamespaces = append(o.TargetNamespaces, n)
}
} else {
confirmMessage = "Existing ingress rules found in current namespace. Confirm to delete and recreate them"
// fall back to current ns only
log.Infof("looking for existing ingress rules in current namespace %s\n", o.currentNamespace)
ings, err := o.KubeClientCached.ExtensionsV1beta1().Ingresses(o.currentNamespace).List(metav1.ListOptions{})
if err != nil {
return existingIngressNames, fmt.Errorf("cannot list all ingresses in cluster: %v", err)
}
for _, i := range ings.Items {
if i.Annotations[services.ExposeGeneratedByAnnotation] == Exposecontroller {
if o.isIngressForServices(&i) {
existingIngressNames[i.Name] = i.Namespace
}
}
}
o.TargetNamespaces = append(o.TargetNamespaces, o.currentNamespace)
}
if len(existingIngressNames) == 0 {
return existingIngressNames, nil
}
confirm := &survey.Confirm{
Message: confirmMessage,
Default: true,
}
flag := true
err := survey.AskOne(confirm, &flag, nil, surveyOpts)
if err != nil {
return existingIngressNames, err
}
if !flag {
return existingIngressNames, errors.New("Not able to automatically delete existing ingress rules. Either delete manually or change the scope the command should run in")
}
return existingIngressNames, nil
}
func (o *UpgradeIngressOptions) confirmExposecontrollerConfig() error {
// get current ingress config to use as existing defaults
devNamespace, _, err := kube.GetDevNamespace(o.KubeClientCached, o.currentNamespace)
if err != nil {
return fmt.Errorf("cannot find a dev team namespace to get existing exposecontroller config from. %v", err)
}
o.IngressConfig, err = kube.GetIngressConfig(o.KubeClientCached, devNamespace)
if err != nil {
// carry on as it just means we dont have any defaults
}
o.IngressConfig.Exposer, err = util.PickNameWithDefault([]string{"Ingress", "Route"}, "Expose type", o.IngressConfig.Exposer, "", o.In, o.Out, o.Err)
if err != nil {
return err
}
o.IngressConfig.Domain, err = util.PickValue("Domain:", o.IngressConfig.Domain, true, "", o.In, o.Out, o.Err)
if err != nil {
return err
}
if !strings.HasSuffix(o.IngressConfig.Domain, "nip.io") {
o.IngressConfig.TLS = util.Confirm("If your network is publicly available would you like to enable cluster wide TLS?", true, "Enables cert-manager and configures TLS with signed certificates from LetsEncrypt", o.In, o.Out, o.Err)
if o.IngressConfig.TLS {
log.Infof("If testing LetsEncrypt you should use staging as you may be rate limited using production.")
clusterIssuer, err := util.PickNameWithDefault([]string{"staging", "production"}, "Use LetsEncrypt staging or production?", "production", "", o.In, o.Out, o.Err)
// if the cluster issuer is production the string needed by letsencrypt is prod
if clusterIssuer == "production" {
clusterIssuer = "prod"
}
if err != nil {
return err
}
o.IngressConfig.Issuer = "letsencrypt-" + clusterIssuer
if o.IngressConfig.Email == "" {
email1, err := o.getCommandOutput("", "git", "config", "user.email")
if err != nil {
return err
}
o.IngressConfig.Email = strings.TrimSpace(email1)
}
o.IngressConfig.Email, err = util.PickValue("Email address to register with LetsEncrypt:", o.IngressConfig.Email, true, "", o.In, o.Out, o.Err)
if err != nil {
return err
}
}
}
return nil
}
func (o *UpgradeIngressOptions) recreateIngressRules() error {
devNamespace, _, err := kube.GetDevNamespace(o.KubeClientCached, o.currentNamespace)
if err != nil {
return fmt.Errorf("cannot find a dev team namespace to get existing exposecontroller config from. %v", err)
}
for _, n := range o.TargetNamespaces {
o.CleanExposecontrollerReources(n)
err := o.cleanTLSSecrets(n)
if err != nil {
return err
}
err = kube.CleanCertmanagerResources(o.KubeClientCached, n, o.IngressConfig)
if err != nil {
return err
}
err = o.runExposecontroller(devNamespace, n, o.IngressConfig, o.Services...)
if err != nil {
return err
}
}
return nil
}
func (o *UpgradeIngressOptions) ensureCertmanagerSetup() error {
if !o.SkipCertManager {
return o.ensureCertmanager()
}
return nil
}
// AnnotateExposedServicesWithCertManager annotates exposed services with cert manager
func (o *UpgradeIngressOptions) AnnotateExposedServicesWithCertManager(svcs ...string) error {
for _, n := range o.TargetNamespaces {
err := services.AnnotateNamespaceServicesWithCertManager(o.KubeClientCached, n, o.IngressConfig.Issuer, svcs...)
if err != nil {
return err
}
}
return nil
}
// CleanServiceAnnotations cleans service annotations
func (o *UpgradeIngressOptions) CleanServiceAnnotations(svcs ...string) error {
for _, n := range o.TargetNamespaces {
err := services.CleanServiceAnnotations(o.KubeClientCached, n, svcs...)
if err != nil {
return err
}
}
return nil
}
func (o *UpgradeIngressOptions) cleanTLSSecrets(ns string) error {
// delete the tls related secrets so we dont reuse old ones when switching from http to https
secrets, err := o.KubeClientCached.CoreV1().Secrets(ns).List(metav1.ListOptions{})
if err != nil {
return err
}
for _, s := range secrets.Items {
if strings.HasPrefix(s.Name, "tls-") {
err := o.KubeClientCached.CoreV1().Secrets(ns).Delete(s.Name, &metav1.DeleteOptions{})
if err != nil {
return fmt.Errorf("failed to delete tls secret %s: %v", s.Name, err)
}
}
}
return nil
}
func (o *UpgradeIngressOptions) updateWebHooks(oldHookEndpoint string, newHookEndpoint string) error {
log.Infof("Updating all webHooks from %s to %s\n", util.ColorInfo(oldHookEndpoint), util.ColorInfo(newHookEndpoint))
updateWebHook := UpdateWebhooksOptions{
CommonOptions: o.CommonOptions,
}
authConfigService, err := o.CreateGitAuthConfigService()
if err != nil {
return errors.Wrap(err, "failed to create git auth service")
}
gitServer := authConfigService.Config().CurrentServer
git, err := o.gitProviderForGitServerURL(gitServer, "github")
if err != nil {
return errors.Wrap(err, "unable to determine git provider")
}
// organisation
organisation, err := gits.PickOrganisation(git, "", o.In, o.Out, o.Err)
if err != nil {
return errors.Wrap(err, "unable to determine git provider")
}
updateWebHook.PreviousHookUrl = oldHookEndpoint
updateWebHook.Org = organisation
updateWebHook.DryRun = false
return updateWebHook.Run()
}