537 lines
19 KiB
Go
537 lines
19 KiB
Go
package base
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import (
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"context"
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"crypto/sha256"
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"encoding/base64"
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"fmt"
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"reflect"
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"strings"
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"time"
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"github.com/jenkinsci/kubernetes-operator/pkg/apis/jenkins/v1alpha2"
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jenkinsclient "github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/client"
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"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/configuration"
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"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/configuration/base/resources"
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"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/groovy"
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"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/notifications/reason"
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"github.com/jenkinsci/kubernetes-operator/pkg/log"
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"github.com/go-logr/logr"
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stackerr "github.com/pkg/errors"
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corev1 "k8s.io/api/core/v1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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)
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const (
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fetchAllPlugins = 1
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)
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// ReconcileJenkinsBaseConfiguration defines values required for Jenkins base configuration
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type ReconcileJenkinsBaseConfiguration struct {
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configuration.Configuration
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logger logr.Logger
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jenkinsAPIConnectionSettings jenkinsclient.JenkinsAPIConnectionSettings
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}
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// New create structure which takes care of base configuration
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func New(config configuration.Configuration, logger logr.Logger, jenkinsAPIConnectionSettings jenkinsclient.JenkinsAPIConnectionSettings) *ReconcileJenkinsBaseConfiguration {
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return &ReconcileJenkinsBaseConfiguration{
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Configuration: config,
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logger: logger,
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jenkinsAPIConnectionSettings: jenkinsAPIConnectionSettings,
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}
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}
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// Reconcile takes care of base configuration
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func (r *ReconcileJenkinsBaseConfiguration) Reconcile() (reconcile.Result, jenkinsclient.Jenkins, error) {
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metaObject := resources.NewResourceObjectMeta(r.Configuration.Jenkins)
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err := r.ensureResourcesRequiredForJenkinsPod(metaObject)
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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r.logger.V(log.VDebug).Info("Kubernetes resources are present")
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result, err := r.ensureJenkinsMasterPod(metaObject)
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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if result.Requeue {
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return result, nil, nil
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}
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r.logger.V(log.VDebug).Info("Jenkins master pod is present")
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stopReconcileLoop, err := r.detectJenkinsMasterPodStartingIssues()
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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if stopReconcileLoop {
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return reconcile.Result{Requeue: false}, nil, nil
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}
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result, err = r.waitForJenkins()
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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if result.Requeue {
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return result, nil, nil
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}
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r.logger.V(log.VDebug).Info("Jenkins master pod is ready")
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jenkinsClient, err := r.ensureJenkinsClient()
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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r.logger.V(log.VDebug).Info("Jenkins API client set")
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ok, err := r.verifyPlugins(jenkinsClient)
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if err != nil {
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return reconcile.Result{}, nil, err
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}
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if !ok {
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//TODO add what plugins have been changed
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message := "Some plugins have changed, restarting Jenkins"
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r.logger.Info(message)
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restartReason := reason.NewPodRestart(
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reason.OperatorSource,
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[]string{message},
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)
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return reconcile.Result{Requeue: true}, nil, r.Configuration.RestartJenkinsMasterPod(restartReason)
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}
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result, err = r.ensureBaseConfiguration(jenkinsClient)
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return result, jenkinsClient, err
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}
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// GetJenkinsOpts gets JENKINS_OPTS env parameter, parses it's values and returns it as a map`
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func GetJenkinsOpts(jenkins v1alpha2.Jenkins) map[string]string {
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envs := jenkins.Spec.Master.Containers[0].Env
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jenkinsOpts := make(map[string]string)
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for key, value := range envs {
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if value.Name == "JENKINS_OPTS" {
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jenkinsOptsEnv := envs[key]
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jenkinsOptsWithDashes := jenkinsOptsEnv.Value
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if len(jenkinsOptsWithDashes) == 0 {
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return nil
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}
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jenkinsOptsWithEqOperators := strings.Split(jenkinsOptsWithDashes, " ")
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for _, vx := range jenkinsOptsWithEqOperators {
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opt := strings.Split(vx, "=")
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jenkinsOpts[strings.ReplaceAll(opt[0], "--", "")] = opt[1]
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}
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return jenkinsOpts
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}
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}
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return nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) ensureResourcesRequiredForJenkinsPod(metaObject metav1.ObjectMeta) error {
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if err := r.createOperatorCredentialsSecret(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Operator credentials secret is present")
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if err := r.createScriptsConfigMap(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Scripts config map is present")
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if err := r.createInitConfigurationConfigMap(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Init configuration config map is present")
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if err := r.createBaseConfigurationConfigMap(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Base configuration config map is present")
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if err := r.addLabelForWatchesResources(r.Configuration.Jenkins.Spec.GroovyScripts.Customization); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("GroovyScripts Secret and ConfigMap added watched labels")
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if err := r.addLabelForWatchesResources(r.Configuration.Jenkins.Spec.ConfigurationAsCode.Customization); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("ConfigurationAsCode Secret and ConfigMap added watched labels")
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if err := r.createRBAC(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Service account, role and role binding are present")
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if err := r.ensureExtraRBAC(metaObject); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Extra role bindings are present")
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if err := r.createService(metaObject, resources.GetJenkinsHTTPServiceName(r.Configuration.Jenkins), r.Configuration.Jenkins.Spec.Service); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Jenkins HTTP Service is present")
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if err := r.createService(metaObject, resources.GetJenkinsSlavesServiceName(r.Configuration.Jenkins), r.Configuration.Jenkins.Spec.SlaveService); err != nil {
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return err
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}
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r.logger.V(log.VDebug).Info("Jenkins slave Service is present")
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return nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) createOperatorCredentialsSecret(meta metav1.ObjectMeta) error {
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found := &corev1.Secret{}
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err := r.Configuration.Client.Get(context.TODO(), types.NamespacedName{Name: resources.GetOperatorCredentialsSecretName(r.Configuration.Jenkins), Namespace: r.Configuration.Jenkins.ObjectMeta.Namespace}, found)
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if err != nil && apierrors.IsNotFound(err) {
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return stackerr.WithStack(r.CreateResource(resources.NewOperatorCredentialsSecret(meta, r.Configuration.Jenkins)))
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} else if err != nil && !apierrors.IsNotFound(err) {
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return stackerr.WithStack(err)
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}
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if found.Data[resources.OperatorCredentialsSecretUserNameKey] != nil &&
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found.Data[resources.OperatorCredentialsSecretPasswordKey] != nil {
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return nil
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}
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return stackerr.WithStack(r.UpdateResource(resources.NewOperatorCredentialsSecret(meta, r.Configuration.Jenkins)))
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}
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func (r *ReconcileJenkinsBaseConfiguration) getJenkinsMasterPod() (*corev1.Pod, error) {
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jenkinsMasterPodName := resources.GetJenkinsMasterPodName(*r.Configuration.Jenkins)
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currentJenkinsMasterPod := &corev1.Pod{}
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err := r.Client.Get(context.TODO(), types.NamespacedName{Name: jenkinsMasterPodName, Namespace: r.Configuration.Jenkins.Namespace}, currentJenkinsMasterPod)
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if err != nil {
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return nil, err // don't wrap error
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}
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return currentJenkinsMasterPod, nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) calculateUserAndPasswordHash() (string, error) {
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credentialsSecret := &corev1.Secret{}
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err := r.Client.Get(context.TODO(), types.NamespacedName{Name: resources.GetOperatorCredentialsSecretName(r.Configuration.Jenkins), Namespace: r.Configuration.Jenkins.ObjectMeta.Namespace}, credentialsSecret)
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if err != nil {
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return "", stackerr.WithStack(err)
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}
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hash := sha256.New()
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hash.Write(credentialsSecret.Data[resources.OperatorCredentialsSecretUserNameKey])
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hash.Write(credentialsSecret.Data[resources.OperatorCredentialsSecretPasswordKey])
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return base64.StdEncoding.EncodeToString(hash.Sum(nil)), nil
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}
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func compareImagePullSecrets(expected, actual []corev1.LocalObjectReference) bool {
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for _, expected := range expected {
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found := false
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for _, actual := range actual {
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if expected.Name == actual.Name {
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found = true
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break
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}
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}
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if !found {
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return false
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}
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}
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return true
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}
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func compareMap(expected, actual map[string]string) bool {
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for expectedKey, expectedValue := range expected {
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actualValue, found := actual[expectedKey]
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if !found {
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return false
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}
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if expectedValue != actualValue {
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return false
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}
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}
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return true
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}
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func compareEnv(expected, actual []corev1.EnvVar) bool {
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var actualEnv []corev1.EnvVar
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for _, env := range actual {
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if env.Name == "KUBERNETES_PORT_443_TCP_ADDR" || env.Name == "KUBERNETES_PORT" ||
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env.Name == "KUBERNETES_PORT_443_TCP" || env.Name == "KUBERNETES_SERVICE_HOST" {
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continue
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}
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actualEnv = append(actualEnv, env)
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}
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return reflect.DeepEqual(expected, actualEnv)
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}
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// CompareContainerVolumeMounts returns true if two containers volume mounts are the same
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func CompareContainerVolumeMounts(expected corev1.Container, actual corev1.Container) bool {
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var withoutServiceAccount []corev1.VolumeMount
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for _, volumeMount := range actual.VolumeMounts {
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if volumeMount.MountPath != "/var/run/secrets/kubernetes.io/serviceaccount" {
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withoutServiceAccount = append(withoutServiceAccount, volumeMount)
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}
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}
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return reflect.DeepEqual(expected.VolumeMounts, withoutServiceAccount)
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}
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// compareVolumes returns true if Jenkins pod and Jenkins CR volumes are the same
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func (r *ReconcileJenkinsBaseConfiguration) compareVolumes(actualPod corev1.Pod) bool {
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var withoutServiceAccount []corev1.Volume
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for _, volume := range actualPod.Spec.Volumes {
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if !strings.HasPrefix(volume.Name, actualPod.Spec.ServiceAccountName) {
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withoutServiceAccount = append(withoutServiceAccount, volume)
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}
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}
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return reflect.DeepEqual(
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append(resources.GetJenkinsMasterPodBaseVolumes(r.Configuration.Jenkins), r.Configuration.Jenkins.Spec.Master.Volumes...),
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withoutServiceAccount,
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)
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}
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func (r *ReconcileJenkinsBaseConfiguration) detectJenkinsMasterPodStartingIssues() (stopReconcileLoop bool, err error) {
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jenkinsMasterPod, err := r.getJenkinsMasterPod()
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if err != nil {
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return false, err
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}
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if r.Configuration.Jenkins.Status.ProvisionStartTime == nil {
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return true, nil
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}
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if jenkinsMasterPod.Status.Phase == corev1.PodPending {
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timeout := r.Configuration.Jenkins.Status.ProvisionStartTime.Add(time.Minute * 2).UTC()
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now := time.Now().UTC()
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if now.After(timeout) {
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events := &corev1.EventList{}
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err = r.Client.List(context.TODO(), events, client.InNamespace(r.Configuration.Jenkins.Namespace))
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if err != nil {
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return false, stackerr.WithStack(err)
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}
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filteredEvents := r.filterEvents(*events, *jenkinsMasterPod)
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if len(filteredEvents) == 0 {
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return false, nil
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}
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r.logger.Info(fmt.Sprintf("Jenkins master pod starting timeout, events '%+v'", filteredEvents))
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return true, nil
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}
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}
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return false, nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) filterEvents(source corev1.EventList, jenkinsMasterPod corev1.Pod) []string {
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events := []string{}
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for _, eventItem := range source.Items {
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if r.Configuration.Jenkins.Status.ProvisionStartTime.UTC().After(eventItem.LastTimestamp.UTC()) {
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continue
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}
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if eventItem.Type == corev1.EventTypeNormal {
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continue
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}
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if !strings.HasPrefix(eventItem.ObjectMeta.Name, jenkinsMasterPod.Name) {
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continue
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}
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events = append(events, fmt.Sprintf("Message: %s Subobject: %s", eventItem.Message, eventItem.InvolvedObject.FieldPath))
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}
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return events
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}
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func (r *ReconcileJenkinsBaseConfiguration) waitForJenkins() (reconcile.Result, error) {
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jenkinsMasterPod, err := r.getJenkinsMasterPod()
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if err != nil {
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return reconcile.Result{}, err
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}
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if r.IsJenkinsTerminating(*jenkinsMasterPod) {
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r.logger.V(log.VDebug).Info("Jenkins master pod is terminating")
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return reconcile.Result{Requeue: true, RequeueAfter: time.Second * 5}, nil
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}
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if jenkinsMasterPod.Status.Phase != corev1.PodRunning {
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r.logger.V(log.VDebug).Info("Jenkins master pod not ready")
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return reconcile.Result{Requeue: true, RequeueAfter: time.Second * 5}, nil
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}
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containersReadyCount := 0
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for _, containerStatus := range jenkinsMasterPod.Status.ContainerStatuses {
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if containerStatus.State.Terminated != nil {
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message := fmt.Sprintf("Container '%s' is terminated, status '%+v'", containerStatus.Name, containerStatus)
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r.logger.Info(message)
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restartReason := reason.NewPodRestart(
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reason.KubernetesSource,
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[]string{message},
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)
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return reconcile.Result{Requeue: true}, r.Configuration.RestartJenkinsMasterPod(restartReason)
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}
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if !containerStatus.Ready {
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r.logger.V(log.VDebug).Info(fmt.Sprintf("Container '%s' not ready, readiness probe failed", containerStatus.Name))
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} else {
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containersReadyCount++
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}
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}
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if containersReadyCount != len(jenkinsMasterPod.Status.ContainerStatuses) {
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return reconcile.Result{Requeue: true, RequeueAfter: time.Second * 5}, nil
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}
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return reconcile.Result{}, nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) ensureJenkinsClient() (jenkinsclient.Jenkins, error) {
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switch r.Configuration.Jenkins.Spec.JenkinsAPISettings.AuthorizationStrategy {
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case v1alpha2.ServiceAccountAuthorizationStrategy:
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return r.ensureJenkinsClientFromServiceAccount()
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case v1alpha2.CreateUserAuthorizationStrategy:
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return r.ensureJenkinsClientFromSecret()
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default:
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return nil, stackerr.Errorf("unrecognized '%s' spec.jenkinsAPISettings.authorizationStrategy", r.Configuration.Jenkins.Spec.JenkinsAPISettings.AuthorizationStrategy)
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}
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}
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func (r *ReconcileJenkinsBaseConfiguration) getJenkinsAPIUrl() (string, error) {
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var service corev1.Service
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err := r.Client.Get(context.TODO(), types.NamespacedName{
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Namespace: r.Configuration.Jenkins.ObjectMeta.Namespace,
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Name: resources.GetJenkinsHTTPServiceName(r.Configuration.Jenkins),
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}, &service)
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if err != nil {
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return "", err
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}
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jenkinsURL := r.jenkinsAPIConnectionSettings.BuildJenkinsAPIUrl(service.Name, service.Namespace, service.Spec.Ports[0].Port, service.Spec.Ports[0].NodePort)
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if prefix, ok := GetJenkinsOpts(*r.Configuration.Jenkins)["prefix"]; ok {
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jenkinsURL = jenkinsURL + prefix
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}
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return jenkinsURL, nil
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}
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func (r *ReconcileJenkinsBaseConfiguration) ensureJenkinsClientFromServiceAccount() (jenkinsclient.Jenkins, error) {
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jenkinsAPIUrl, err := r.getJenkinsAPIUrl()
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if err != nil {
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return nil, err
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}
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podName := resources.GetJenkinsMasterPodName(*r.Configuration.Jenkins)
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token, _, err := r.Configuration.Exec(podName, resources.JenkinsMasterContainerName, []string{"cat", "/var/run/secrets/kubernetes.io/serviceaccount/token"})
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if err != nil {
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return nil, err
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}
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return jenkinsclient.NewBearerTokenAuthorization(jenkinsAPIUrl, token.String())
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}
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func (r *ReconcileJenkinsBaseConfiguration) ensureJenkinsClientFromSecret() (jenkinsclient.Jenkins, error) {
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jenkinsURL, err := r.getJenkinsAPIUrl()
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if err != nil {
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return nil, err
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}
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r.logger.V(log.VDebug).Info(fmt.Sprintf("Jenkins API URL '%s'", jenkinsURL))
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credentialsSecret := &corev1.Secret{}
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err = r.Client.Get(context.TODO(), types.NamespacedName{Name: resources.GetOperatorCredentialsSecretName(r.Configuration.Jenkins), Namespace: r.Configuration.Jenkins.ObjectMeta.Namespace}, credentialsSecret)
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if err != nil {
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return nil, stackerr.WithStack(err)
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}
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currentJenkinsMasterPod, err := r.getJenkinsMasterPod()
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if err != nil {
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return nil, err
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}
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var tokenCreationTime *time.Time
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tokenCreationTimeBytes := credentialsSecret.Data[resources.OperatorCredentialsSecretTokenCreationKey]
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if tokenCreationTimeBytes != nil {
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tokenCreationTime = &time.Time{}
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err = tokenCreationTime.UnmarshalText(tokenCreationTimeBytes)
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if err != nil {
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tokenCreationTime = nil
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}
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}
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if credentialsSecret.Data[resources.OperatorCredentialsSecretTokenKey] == nil ||
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tokenCreationTimeBytes == nil || tokenCreationTime == nil ||
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currentJenkinsMasterPod.ObjectMeta.CreationTimestamp.Time.UTC().After(tokenCreationTime.UTC()) {
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r.logger.Info("Generating Jenkins API token for operator")
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userName := string(credentialsSecret.Data[resources.OperatorCredentialsSecretUserNameKey])
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jenkinsClient, err := jenkinsclient.NewUserAndPasswordAuthorization(
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jenkinsURL,
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userName,
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string(credentialsSecret.Data[resources.OperatorCredentialsSecretPasswordKey]))
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if err != nil {
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return nil, err
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}
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token, err := jenkinsClient.GenerateToken(userName, "token")
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|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
credentialsSecret.Data[resources.OperatorCredentialsSecretTokenKey] = []byte(token.GetToken())
|
|
now, _ := time.Now().UTC().MarshalText()
|
|
credentialsSecret.Data[resources.OperatorCredentialsSecretTokenCreationKey] = now
|
|
err = r.UpdateResource(credentialsSecret)
|
|
if err != nil {
|
|
return nil, stackerr.WithStack(err)
|
|
}
|
|
}
|
|
return jenkinsclient.NewUserAndPasswordAuthorization(
|
|
jenkinsURL,
|
|
string(credentialsSecret.Data[resources.OperatorCredentialsSecretUserNameKey]),
|
|
string(credentialsSecret.Data[resources.OperatorCredentialsSecretTokenKey]))
|
|
}
|
|
|
|
func (r *ReconcileJenkinsBaseConfiguration) ensureBaseConfiguration(jenkinsClient jenkinsclient.Jenkins) (reconcile.Result, error) {
|
|
customization := v1alpha2.GroovyScripts{
|
|
Customization: v1alpha2.Customization{
|
|
Secret: v1alpha2.SecretRef{Name: ""},
|
|
Configurations: []v1alpha2.ConfigMapRef{{Name: resources.GetBaseConfigurationConfigMapName(r.Configuration.Jenkins)}},
|
|
},
|
|
}
|
|
groovyClient := groovy.New(jenkinsClient, r.Client, r.logger, r.Configuration.Jenkins, "base-groovy", customization.Customization)
|
|
requeue, err := groovyClient.Ensure(func(name string) bool {
|
|
return strings.HasSuffix(name, ".groovy")
|
|
}, func(groovyScript string) string {
|
|
return groovyScript
|
|
})
|
|
return reconcile.Result{Requeue: requeue}, err
|
|
}
|
|
|
|
func (r *ReconcileJenkinsBaseConfiguration) waitUntilCreateJenkinsMasterPod() (currentJenkinsMasterPod *corev1.Pod, err error) {
|
|
currentJenkinsMasterPod, err = r.getJenkinsMasterPod()
|
|
for {
|
|
if err != nil && !apierrors.IsNotFound(err) {
|
|
return nil, stackerr.WithStack(err)
|
|
} else if err == nil {
|
|
break
|
|
}
|
|
currentJenkinsMasterPod, err = r.getJenkinsMasterPod()
|
|
time.Sleep(time.Millisecond * 10)
|
|
}
|
|
return
|
|
}
|
|
|
|
func (r *ReconcileJenkinsBaseConfiguration) handleAdmissionControllerChanges(currentJenkinsMasterPod *corev1.Pod) {
|
|
if !reflect.DeepEqual(r.Configuration.Jenkins.Spec.Master.SecurityContext, currentJenkinsMasterPod.Spec.SecurityContext) {
|
|
r.Configuration.Jenkins.Spec.Master.SecurityContext = currentJenkinsMasterPod.Spec.SecurityContext
|
|
r.logger.Info(fmt.Sprintf("The Admission controller has changed the Jenkins master pod spec.securityContext, changing the Jenkinc CR spec.master.securityContext to '%+v'", currentJenkinsMasterPod.Spec.SecurityContext))
|
|
}
|
|
for i, container := range r.Configuration.Jenkins.Spec.Master.Containers {
|
|
if !reflect.DeepEqual(container.SecurityContext, currentJenkinsMasterPod.Spec.Containers[i].SecurityContext) {
|
|
r.Configuration.Jenkins.Spec.Master.Containers[i].SecurityContext = currentJenkinsMasterPod.Spec.Containers[i].SecurityContext
|
|
r.logger.Info(fmt.Sprintf("The Admission controller has changed the securityContext, changing the Jenkins CR spec.master.containers[%s].securityContext to '+%v'", container.Name, currentJenkinsMasterPod.Spec.Containers[i].SecurityContext))
|
|
}
|
|
}
|
|
}
|