500 lines
19 KiB
Go
500 lines
19 KiB
Go
/*
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Copyright 2021.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controllers
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import (
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"context"
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"fmt"
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"math/rand"
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"reflect"
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"time"
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"github.com/jenkinsci/kubernetes-operator/api/v1alpha2"
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jenkinsclient "github.com/jenkinsci/kubernetes-operator/pkg/client"
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"github.com/jenkinsci/kubernetes-operator/pkg/configuration"
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"github.com/jenkinsci/kubernetes-operator/pkg/configuration/base"
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"github.com/jenkinsci/kubernetes-operator/pkg/configuration/base/resources"
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"github.com/jenkinsci/kubernetes-operator/pkg/configuration/user"
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"github.com/jenkinsci/kubernetes-operator/pkg/constants"
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"github.com/jenkinsci/kubernetes-operator/pkg/log"
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"github.com/jenkinsci/kubernetes-operator/pkg/notifications/event"
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"github.com/jenkinsci/kubernetes-operator/pkg/notifications/reason"
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"github.com/jenkinsci/kubernetes-operator/pkg/plugins"
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"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/runtime"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/rest"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/handler"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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"sigs.k8s.io/controller-runtime/pkg/source"
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)
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type reconcileError struct {
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err error
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counter uint64
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}
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const (
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APIVersion = "core/v1"
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SecretKind = "Secret"
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ConfigMapKind = "ConfigMap"
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containerProbeURI = "login"
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containerProbePortName = "http"
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)
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var reconcileErrors = map[string]reconcileError{}
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var logx = log.Log
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// JenkinsReconciler reconciles a Jenkins object
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type JenkinsReconciler struct {
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Client client.Client
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Scheme *runtime.Scheme
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JenkinsAPIConnectionSettings jenkinsclient.JenkinsAPIConnectionSettings
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ClientSet kubernetes.Clientset
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Config rest.Config
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NotificationEvents *chan event.Event
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KubernetesClusterDomain string
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}
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// SetupWithManager sets up the controller with the Manager.
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func (r *JenkinsReconciler) SetupWithManager(mgr ctrl.Manager) error {
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jenkinsHandler := &enqueueRequestForJenkins{}
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configMapResource := &source.Kind{Type: &corev1.ConfigMap{TypeMeta: metav1.TypeMeta{APIVersion: APIVersion, Kind: ConfigMapKind}}}
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secretResource := &source.Kind{Type: &corev1.Secret{TypeMeta: metav1.TypeMeta{APIVersion: APIVersion, Kind: SecretKind}}}
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decorator := jenkinsDecorator{handler: &handler.EnqueueRequestForObject{}}
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return ctrl.NewControllerManagedBy(mgr).
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For(&v1alpha2.Jenkins{}).
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Owns(&corev1.Pod{}).
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Owns(&corev1.Secret{}).
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Owns(&corev1.ConfigMap{}).
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Watches(secretResource, jenkinsHandler).
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Watches(configMapResource, jenkinsHandler).
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Watches(&source.Kind{Type: &v1alpha2.Jenkins{}}, &decorator).
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Complete(r)
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}
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func (r *JenkinsReconciler) newJenkinsReconcilier(jenkins *v1alpha2.Jenkins) configuration.Configuration {
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config := configuration.Configuration{
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Client: r.Client,
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ClientSet: r.ClientSet,
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Notifications: r.NotificationEvents,
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Jenkins: jenkins,
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Scheme: r.Scheme,
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Config: &r.Config,
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JenkinsAPIConnectionSettings: r.JenkinsAPIConnectionSettings,
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KubernetesClusterDomain: r.KubernetesClusterDomain,
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}
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return config
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}
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// +kubebuilder:rbac:groups=jenkins.io,resources=jenkins,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups=jenkins.io,resources=jenkins/status,verbs=get;update;patch
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// +kubebuilder:rbac:groups=jenkins.io,resources=jenkins/finalizers,verbs=update
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// +kubebuilder:rbac:groups=core,resources=pods,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups=core,resources=services;configmaps;secrets,verbs=get;list;watch;create;update
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// +kubebuilder:rbac:groups=apps,resources=deployments;daemonsets;replicasets;statefulsets,verbs=*
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// +kubebuilder:rbac:groups=core,resources=serviceaccounts,verbs=get;list;watch;create;update
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// +kubebuilder:rbac:groups=rbac.authorization.k8s.io,resources=roles;rolebindings,verbs=get;list;watch;create;update
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// +kubebuilder:rbac:groups=core,resources=pods/portforward,verbs=create
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// +kubebuilder:rbac:groups=core,resources=pods/log,verbs=get;list;watch
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// +kubebuilder:rbac:groups=core,resources=pods;pods/exec,verbs=*
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// +kubebuilder:rbac:groups=core,resources=events,verbs=get;watch;list;create;patch
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// +kubebuilder:rbac:groups=apps;jenkins-operator,resources=deployments/finalizers,verbs=update
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// +kubebuilder:rbac:groups=jenkins.io,resources=*,verbs=*
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// +kubebuilder:rbac:groups=core,resources=persistentvolumeclaims,verbs=get;list;watch
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// +kubebuilder:rbac:groups=route.openshift.io,resources=routes,verbs=get;list;watch;create;update
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// +kubebuilder:rbac:groups=image.openshift.io,resources=imagestreams,verbs=get;list;watch
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// +kubebuilder:rbac:groups=build.openshift.io,resources=builds;buildconfigs,verbs=get;list;watch
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// For more details, check Reconcile and its Result here:
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// - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.7.0/pkg/reconcile
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func (r *JenkinsReconciler) Reconcile(_ context.Context, request ctrl.Request) (ctrl.Result, error) {
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reconcileFailLimit := uint64(10)
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logger := logx.WithValues("cr", request.Name)
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logger.V(log.VDebug).Info("Reconciling Jenkins")
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result, jenkins, err := r.reconcile(request)
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if err != nil && apierrors.IsConflict(err) {
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return reconcile.Result{Requeue: true}, nil
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} else if err != nil {
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lastErrors, found := reconcileErrors[request.Name]
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if found {
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if err.Error() == lastErrors.err.Error() {
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lastErrors.counter++
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} else {
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lastErrors.counter = 1
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lastErrors.err = err
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}
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} else {
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lastErrors = reconcileError{
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err: err,
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counter: 1,
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}
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}
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reconcileErrors[request.Name] = lastErrors
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if lastErrors.counter >= reconcileFailLimit {
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if log.Debug {
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logger.V(log.VWarn).Info(fmt.Sprintf("Reconcile loop failed %d times with the same errors, giving up: %+v", reconcileFailLimit, err))
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} else {
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logger.V(log.VWarn).Info(fmt.Sprintf("Reconcile loop failed %d times with the same errors, giving up: %s", reconcileFailLimit, err))
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}
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseBase,
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Level: v1alpha2.NotificationLevelWarning,
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Reason: reason.NewReconcileLoopFailed(
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reason.OperatorSource,
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[]string{fmt.Sprintf("Reconcile loop failed %d times with the same errors, giving up: %s", reconcileFailLimit, err)},
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),
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}
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return reconcile.Result{Requeue: false}, nil
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}
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if log.Debug {
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logger.V(log.VWarn).Info(fmt.Sprintf("Reconcile loop failed: %+v", err))
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} else if err.Error() != fmt.Sprintf("Operation cannot be fulfilled on jenkins.jenkins.io \"%s\": the object has been modified; please apply your changes to the latest version and try again", request.Name) {
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logger.V(log.VWarn).Info(fmt.Sprintf("Reconcile loop failed: %s", err))
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}
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if groovyErr, ok := err.(*jenkinsclient.GroovyScriptExecutionFailed); ok {
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseBase,
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Level: v1alpha2.NotificationLevelWarning,
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Reason: reason.NewGroovyScriptExecutionFailed(
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reason.OperatorSource,
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[]string{fmt.Sprintf("%s Source '%s' Name '%s' groovy script execution failed", groovyErr.ConfigurationType, groovyErr.Source, groovyErr.Name)},
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[]string{fmt.Sprintf("%s Source '%s' Name '%s' groovy script execution failed, logs: %+v", groovyErr.ConfigurationType, groovyErr.Source, groovyErr.Name, groovyErr.Logs)}...,
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),
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}
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return reconcile.Result{Requeue: false}, nil
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}
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return reconcile.Result{Requeue: true}, nil
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}
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if result.Requeue && result.RequeueAfter == 0 {
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result.RequeueAfter = time.Duration(rand.Intn(10)) * time.Millisecond
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}
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return result, nil
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}
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func (r *JenkinsReconciler) reconcile(request reconcile.Request) (reconcile.Result, *v1alpha2.Jenkins, error) {
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logger := logx.WithValues("cr", request.Name)
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// Fetch the Jenkins instance
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jenkins := &v1alpha2.Jenkins{}
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var err error
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err = r.Client.Get(context.TODO(), request.NamespacedName, jenkins)
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if err != nil {
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if apierrors.IsNotFound(err) {
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// Request object not found, could have been deleted after reconcile request.
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// Owned objects are automatically garbage collected. For additional cleanup logic use finalizers.
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// Return and don't requeue
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return reconcile.Result{}, nil, nil
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}
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// Error reading the object - requeue the request.
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return reconcile.Result{}, nil, errors.WithStack(err)
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}
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var requeue bool
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requeue, err = r.setDefaults(jenkins)
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if requeue {
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return reconcile.Result{Requeue: true}, jenkins, nil
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}
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config := r.newJenkinsReconcilier(jenkins)
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// Reconcile base configuration
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baseConfiguration := base.New(config, r.JenkinsAPIConnectionSettings)
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var baseMessages []string
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baseMessages, err = baseConfiguration.Validate(jenkins)
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if len(baseMessages) > 0 {
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message := "Validation of base configuration failed, please correct Jenkins CR."
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseBase,
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Level: v1alpha2.NotificationLevelWarning,
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Reason: reason.NewBaseConfigurationFailed(reason.HumanSource, []string{message}, append([]string{message}, baseMessages...)...),
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}
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logger.V(log.VWarn).Info(message)
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for _, msg := range baseMessages {
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logger.V(log.VWarn).Info(msg)
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}
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return reconcile.Result{}, jenkins, nil // don't requeue
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}
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var result reconcile.Result
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var jenkinsClient jenkinsclient.Jenkins
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result, jenkinsClient, err = baseConfiguration.Reconcile()
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if result.Requeue {
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return result, jenkins, nil
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}
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if jenkinsClient == nil {
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return reconcile.Result{Requeue: false}, jenkins, nil
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}
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if jenkins.Status.BaseConfigurationCompletedTime == nil {
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now := metav1.Now()
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jenkins.Status.BaseConfigurationCompletedTime = &now
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err = r.Client.Status().Update(context.TODO(), jenkins)
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if err != nil {
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return reconcile.Result{}, jenkins, errors.WithStack(err)
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}
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message := fmt.Sprintf("Base configuration phase is complete, took %s",
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jenkins.Status.BaseConfigurationCompletedTime.Sub(jenkins.Status.ProvisionStartTime.Time))
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseBase,
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Level: v1alpha2.NotificationLevelInfo,
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Reason: reason.NewBaseConfigurationComplete(reason.OperatorSource, []string{message}),
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}
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logger.Info(message)
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}
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// Reconcile casc, seedjobs and backups
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userConfiguration := user.New(config, jenkinsClient)
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var messages []string
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messages, err = userConfiguration.Validate(jenkins)
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if len(messages) > 0 {
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message := "Validation of user configuration failed, please correct Jenkins CR"
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseUser,
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Level: v1alpha2.NotificationLevelWarning,
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Reason: reason.NewUserConfigurationFailed(reason.HumanSource, []string{message}, append([]string{message}, messages...)...),
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}
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logger.V(log.VWarn).Info(message)
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for _, msg := range messages {
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logger.V(log.VWarn).Info(msg)
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}
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return reconcile.Result{}, jenkins, nil // don't requeue
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}
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// Reconcile casc
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result, err = userConfiguration.ReconcileCasc()
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if result.Requeue {
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return result, jenkins, nil
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}
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// Reconcile seedjobs, backups
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result, err = userConfiguration.ReconcileOthers()
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if err != nil {
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return reconcile.Result{}, jenkins, err
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}
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if result.Requeue {
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return result, jenkins, nil
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}
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if jenkins.Status.UserConfigurationCompletedTime == nil {
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now := metav1.Now()
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jenkins.Status.UserConfigurationCompletedTime = &now
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err = r.Client.Status().Update(context.TODO(), jenkins)
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if err != nil {
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return reconcile.Result{}, jenkins, errors.WithStack(err)
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}
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message := fmt.Sprintf("User configuration phase is complete, took %s",
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jenkins.Status.UserConfigurationCompletedTime.Sub(jenkins.Status.ProvisionStartTime.Time))
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*r.NotificationEvents <- event.Event{
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Jenkins: *jenkins,
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Phase: event.PhaseUser,
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Level: v1alpha2.NotificationLevelInfo,
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Reason: reason.NewUserConfigurationComplete(reason.OperatorSource, []string{message}),
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}
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logger.Info(message)
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}
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return reconcile.Result{}, jenkins, nil
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}
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func (r *JenkinsReconciler) setDefaults(jenkins *v1alpha2.Jenkins) (requeue bool, err error) {
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changed := false
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logger := logx.WithValues("cr", jenkins.Name)
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var jenkinsContainer v1alpha2.Container
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if len(jenkins.Spec.Master.Containers) == 0 {
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changed = true
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jenkinsContainer = v1alpha2.Container{Name: resources.JenkinsMasterContainerName}
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} else {
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if jenkins.Spec.Master.Containers[0].Name != resources.JenkinsMasterContainerName {
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return false, errors.Errorf("first container in spec.master.containers must be Jenkins container with name '%s', please correct CR", resources.JenkinsMasterContainerName)
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}
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jenkinsContainer = jenkins.Spec.Master.Containers[0]
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}
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if len(jenkinsContainer.Image) == 0 {
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logger.Info("Setting default Jenkins master image: " + constants.DefaultJenkinsMasterImage)
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changed = true
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jenkinsContainer.Image = constants.DefaultJenkinsMasterImage
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jenkinsContainer.ImagePullPolicy = corev1.PullAlways
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}
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if len(jenkinsContainer.ImagePullPolicy) == 0 {
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logger.Info(fmt.Sprintf("Setting default Jenkins master image pull policy: %s", corev1.PullAlways))
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changed = true
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jenkinsContainer.ImagePullPolicy = corev1.PullAlways
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}
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if jenkinsContainer.ReadinessProbe == nil {
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logger.Info("Setting default Jenkins readinessProbe")
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changed = true
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jenkinsContainer.ReadinessProbe = resources.NewProbe(containerProbeURI, containerProbePortName, corev1.URISchemeHTTP, 60, 1, 10)
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}
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if jenkinsContainer.LivenessProbe == nil {
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logger.Info("Setting default Jenkins livenessProbe")
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changed = true
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jenkinsContainer.LivenessProbe = resources.NewProbe(containerProbeURI, containerProbePortName, corev1.URISchemeHTTP, 80, 5, 12)
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}
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if len(jenkinsContainer.Command) == 0 {
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logger.Info("Setting default Jenkins container command")
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changed = true
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jenkinsContainer.Command = resources.GetJenkinsMasterContainerBaseCommand()
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}
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if isJavaOpsVariableNotSet(jenkinsContainer) {
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logger.Info("Setting default Jenkins container JAVA_OPTS environment variable")
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changed = true
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jenkinsContainer.Env = append(jenkinsContainer.Env, corev1.EnvVar{
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Name: constants.JavaOpsVariableName,
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Value: "-XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1 -Djenkins.install.runSetupWizard=false -Djava.awt.headless=true",
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})
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}
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if len(jenkins.Spec.Master.BasePlugins) == 0 {
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logger.Info("Setting default operator plugins")
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changed = true
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jenkins.Spec.Master.BasePlugins = basePlugins()
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}
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if isResourceRequirementsNotSet(jenkinsContainer.Resources) {
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logger.Info("Setting default Jenkins master container resource requirements")
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changed = true
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jenkinsContainer.Resources = resources.NewResourceRequirements("1", "500Mi", "1500m", "3Gi")
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}
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if reflect.DeepEqual(jenkins.Spec.Service, v1alpha2.Service{}) {
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logger.Info("Setting default Jenkins master service")
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changed = true
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var serviceType = corev1.ServiceTypeClusterIP
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if r.JenkinsAPIConnectionSettings.UseNodePort {
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serviceType = corev1.ServiceTypeNodePort
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}
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jenkins.Spec.Service = v1alpha2.Service{
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Type: serviceType,
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Port: constants.DefaultHTTPPortInt32,
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}
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}
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if reflect.DeepEqual(jenkins.Spec.SlaveService, v1alpha2.Service{}) {
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logger.Info("Setting default Jenkins slave service")
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changed = true
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jenkins.Spec.SlaveService = v1alpha2.Service{
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Type: corev1.ServiceTypeClusterIP,
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Port: constants.DefaultSlavePortInt32,
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}
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}
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if len(jenkins.Spec.Master.Containers) > 1 {
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for i, container := range jenkins.Spec.Master.Containers[1:] {
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if r.setDefaultsForContainer(jenkins, container.Name, i+1) {
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changed = true
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}
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}
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}
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if len(jenkins.Spec.Backup.ContainerName) > 0 && jenkins.Spec.Backup.Interval == 0 {
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logger.Info("Setting default backup interval")
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changed = true
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jenkins.Spec.Backup.Interval = 30
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}
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if len(jenkins.Spec.Master.Containers) == 0 || len(jenkins.Spec.Master.Containers) == 1 {
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jenkins.Spec.Master.Containers = []v1alpha2.Container{jenkinsContainer}
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} else {
|
|
noJenkinsContainers := jenkins.Spec.Master.Containers[1:]
|
|
containers := []v1alpha2.Container{jenkinsContainer}
|
|
containers = append(containers, noJenkinsContainers...)
|
|
jenkins.Spec.Master.Containers = containers
|
|
}
|
|
|
|
if reflect.DeepEqual(jenkins.Spec.JenkinsAPISettings, v1alpha2.JenkinsAPISettings{}) {
|
|
logger.Info("Setting default Jenkins API settings")
|
|
changed = true
|
|
jenkins.Spec.JenkinsAPISettings = v1alpha2.JenkinsAPISettings{AuthorizationStrategy: v1alpha2.CreateUserAuthorizationStrategy}
|
|
}
|
|
|
|
if jenkins.Spec.JenkinsAPISettings.AuthorizationStrategy == "" {
|
|
logger.Info("Setting default Jenkins API settings authorization strategy")
|
|
changed = true
|
|
jenkins.Spec.JenkinsAPISettings.AuthorizationStrategy = v1alpha2.CreateUserAuthorizationStrategy
|
|
}
|
|
|
|
if changed {
|
|
return changed, errors.WithStack(r.Client.Update(context.TODO(), jenkins))
|
|
}
|
|
return changed, nil
|
|
}
|
|
|
|
func isJavaOpsVariableNotSet(container v1alpha2.Container) bool {
|
|
for _, env := range container.Env {
|
|
if env.Name == constants.JavaOpsVariableName {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (r *JenkinsReconciler) setDefaultsForContainer(jenkins *v1alpha2.Jenkins, containerName string, containerIndex int) bool {
|
|
changed := false
|
|
logger := logx.WithValues("cr", jenkins.Name, "container", containerName)
|
|
|
|
if len(jenkins.Spec.Master.Containers[containerIndex].ImagePullPolicy) == 0 {
|
|
logger.Info(fmt.Sprintf("Setting default container image pull policy: %s", corev1.PullAlways))
|
|
changed = true
|
|
jenkins.Spec.Master.Containers[containerIndex].ImagePullPolicy = corev1.PullAlways
|
|
}
|
|
if isResourceRequirementsNotSet(jenkins.Spec.Master.Containers[containerIndex].Resources) {
|
|
logger.Info("Setting default container resource requirements")
|
|
changed = true
|
|
jenkins.Spec.Master.Containers[containerIndex].Resources = resources.NewResourceRequirements("50m", "50Mi", "100m", "100Mi")
|
|
}
|
|
return changed
|
|
}
|
|
|
|
func isResourceRequirementsNotSet(requirements corev1.ResourceRequirements) bool {
|
|
return reflect.DeepEqual(requirements, corev1.ResourceRequirements{})
|
|
}
|
|
|
|
func basePlugins() (result []v1alpha2.Plugin) {
|
|
for _, value := range plugins.BasePlugins() {
|
|
result = append(result, v1alpha2.Plugin{Name: value.Name, Version: value.Version})
|
|
}
|
|
return
|
|
}
|