757 lines
27 KiB
Go
757 lines
27 KiB
Go
/*
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Copyright 2020 The Flux authors
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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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"errors"
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"fmt"
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"strings"
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"time"
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"github.com/go-logr/logr"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chartutil"
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"helm.sh/helm/v3/pkg/strvals"
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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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apimeta "k8s.io/apimachinery/pkg/api/meta"
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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/apimachinery/pkg/types"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/client-go/rest"
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kuberecorder "k8s.io/client-go/tools/record"
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"k8s.io/client-go/tools/reference"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/builder"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/controller"
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"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
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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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"github.com/fluxcd/pkg/apis/meta"
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"github.com/fluxcd/pkg/runtime/events"
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"github.com/fluxcd/pkg/runtime/metrics"
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"github.com/fluxcd/pkg/runtime/predicates"
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sourcev1 "github.com/fluxcd/source-controller/api/v1beta1"
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v2 "github.com/fluxcd/helm-controller/api/v2beta1"
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"github.com/fluxcd/helm-controller/internal/kube"
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"github.com/fluxcd/helm-controller/internal/runner"
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"github.com/fluxcd/helm-controller/internal/util"
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)
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// +kubebuilder:rbac:groups=helm.toolkit.fluxcd.io,resources=helmreleases,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups=helm.toolkit.fluxcd.io,resources=helmreleases/status,verbs=get;update;patch
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// +kubebuilder:rbac:groups=helm.toolkit.fluxcd.io,resources=helmreleases/finalizers,verbs=get;create;update;patch;delete
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// +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=helmcharts,verbs=get;list;watch
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// +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=helmcharts/status,verbs=get
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// +kubebuilder:rbac:groups="",resources=events,verbs=create;patch
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// HelmReleaseReconciler reconciles a HelmRelease object
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type HelmReleaseReconciler struct {
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client.Client
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Config *rest.Config
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Log logr.Logger
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Scheme *runtime.Scheme
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requeueDependency time.Duration
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EventRecorder kuberecorder.EventRecorder
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ExternalEventRecorder *events.Recorder
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MetricsRecorder *metrics.Recorder
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}
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func (r *HelmReleaseReconciler) SetupWithManager(mgr ctrl.Manager, opts HelmReleaseReconcilerOptions) error {
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// Index the HelmRelease by the HelmChart references they point at
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if err := mgr.GetFieldIndexer().IndexField(context.TODO(), &v2.HelmRelease{}, v2.SourceIndexKey,
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func(rawObj runtime.Object) []string {
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hr := rawObj.(*v2.HelmRelease)
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return []string{fmt.Sprintf("%s/%s", hr.Spec.Chart.GetNamespace(hr.Namespace), hr.GetHelmChartName())}
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},
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); err != nil {
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return err
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}
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r.requeueDependency = opts.DependencyRequeueInterval
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return ctrl.NewControllerManagedBy(mgr).
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For(&v2.HelmRelease{}, builder.WithPredicates(predicates.ChangePredicate{})).
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Watches(
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&source.Kind{Type: &sourcev1.HelmChart{}},
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&handler.EnqueueRequestsFromMapFunc{ToRequests: handler.ToRequestsFunc(r.requestsForHelmChartChange)},
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builder.WithPredicates(SourceRevisionChangePredicate{}),
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).
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WithOptions(controller.Options{MaxConcurrentReconciles: opts.MaxConcurrentReconciles}).
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Complete(r)
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}
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// ConditionError represents an error with a status condition reason attached.
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type ConditionError struct {
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Reason string
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Err error
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}
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func (c ConditionError) Error() string {
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return c.Err.Error()
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}
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func (r *HelmReleaseReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) {
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ctx := context.Background()
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start := time.Now()
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var hr v2.HelmRelease
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if err := r.Get(ctx, req.NamespacedName, &hr); err != nil {
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return ctrl.Result{}, client.IgnoreNotFound(err)
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}
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log := r.Log.WithValues("controller", strings.ToLower(v2.HelmReleaseKind), "request", req.NamespacedName)
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// Add our finalizer if it does not exist
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if !controllerutil.ContainsFinalizer(&hr, v2.HelmReleaseFinalizer) {
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controllerutil.AddFinalizer(&hr, v2.HelmReleaseFinalizer)
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if err := r.Update(ctx, &hr); err != nil {
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log.Error(err, "unable to register finalizer")
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return ctrl.Result{}, err
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}
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}
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// Examine if the object is under deletion
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if !hr.ObjectMeta.DeletionTimestamp.IsZero() {
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return r.reconcileDelete(ctx, log, hr)
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}
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hr, result, err := r.reconcile(ctx, log, hr)
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// Update status after reconciliation.
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if updateStatusErr := r.patchStatus(ctx, &hr); updateStatusErr != nil {
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log.Error(updateStatusErr, "unable to update status after reconciliation")
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return ctrl.Result{Requeue: true}, updateStatusErr
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}
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// Record ready status
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r.recordReadiness(hr)
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// Log reconciliation duration
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durationMsg := fmt.Sprintf("reconcilation finished in %s", time.Now().Sub(start).String())
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if result.RequeueAfter > 0 {
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durationMsg = fmt.Sprintf("%s, next run in %s", durationMsg, result.RequeueAfter.String())
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}
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log.Info(durationMsg)
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return result, err
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}
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func (r *HelmReleaseReconciler) reconcile(ctx context.Context, log logr.Logger, hr v2.HelmRelease) (v2.HelmRelease, ctrl.Result, error) {
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reconcileStart := time.Now()
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// Record the value of the reconciliation request, if any
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if v, ok := meta.ReconcileAnnotationValue(hr.GetAnnotations()); ok {
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hr.Status.SetLastHandledReconcileRequest(v)
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}
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// Observe HelmRelease generation.
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if hr.Status.ObservedGeneration != hr.Generation {
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hr.Status.ObservedGeneration = hr.Generation
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hr = v2.HelmReleaseProgressing(hr)
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if updateStatusErr := r.patchStatus(ctx, &hr); updateStatusErr != nil {
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log.Error(updateStatusErr, "unable to update status after generation update")
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return hr, ctrl.Result{Requeue: true}, updateStatusErr
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}
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// Record progressing status
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r.recordReadiness(hr)
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}
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if hr.Spec.Suspend {
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msg := "HelmRelease is suspended, skipping reconciliation"
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log.Info(msg)
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return v2.HelmReleaseNotReady(hr, meta.SuspendedReason, msg), ctrl.Result{}, nil
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}
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// Record reconciliation duration
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if r.MetricsRecorder != nil {
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objRef, err := reference.GetReference(r.Scheme, &hr)
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if err != nil {
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return hr, ctrl.Result{Requeue: true}, err
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}
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defer r.MetricsRecorder.RecordDuration(*objRef, reconcileStart)
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}
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// Reconcile chart based on the HelmChartTemplate
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hc, reconcileErr := r.reconcileChart(ctx, &hr)
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if reconcileErr != nil {
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msg := fmt.Sprintf("chart reconciliation failed: %s", reconcileErr.Error())
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r.event(hr, hr.Status.LastAttemptedRevision, events.EventSeverityError, msg)
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return v2.HelmReleaseNotReady(hr, v2.ArtifactFailedReason, msg), ctrl.Result{Requeue: true}, reconcileErr
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}
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// Check chart readiness
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if hc.Generation != hc.Status.ObservedGeneration || !apimeta.IsStatusConditionTrue(hc.Status.Conditions, meta.ReadyCondition) {
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msg := fmt.Sprintf("HelmChart '%s/%s' is not ready", hc.GetNamespace(), hc.GetName())
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r.event(hr, hr.Status.LastAttemptedRevision, events.EventSeverityInfo, msg)
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log.Info(msg)
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// Do not requeue immediately, when the artifact is created
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// the watcher should trigger a reconciliation.
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return v2.HelmReleaseNotReady(hr, v2.ArtifactFailedReason, msg), ctrl.Result{RequeueAfter: hc.Spec.Interval.Duration}, nil
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}
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// Check dependencies
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if len(hr.Spec.DependsOn) > 0 {
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if err := r.checkDependencies(hr); err != nil {
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msg := fmt.Sprintf("dependencies do not meet ready condition (%s), retrying in %s",
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err.Error(), r.requeueDependency.String())
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r.event(hr, hc.GetArtifact().Revision, events.EventSeverityInfo, msg)
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log.Info(msg)
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// Exponential backoff would cause execution to be prolonged too much,
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// instead we requeue on a fixed interval.
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return v2.HelmReleaseNotReady(hr,
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meta.DependencyNotReadyReason, err.Error()), ctrl.Result{RequeueAfter: r.requeueDependency}, nil
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}
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log.Info("all dependencies are ready, proceeding with release")
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}
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// Compose values
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values, err := r.composeValues(ctx, hr)
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if err != nil {
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r.event(hr, hr.Status.LastAttemptedRevision, events.EventSeverityError, err.Error())
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return v2.HelmReleaseNotReady(hr, v2.InitFailedReason, err.Error()), ctrl.Result{Requeue: true}, nil
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}
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// Load chart from artifact
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chart, err := r.loadHelmChart(hc)
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if err != nil {
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r.event(hr, hr.Status.LastAttemptedRevision, events.EventSeverityError, err.Error())
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return v2.HelmReleaseNotReady(hr, v2.ArtifactFailedReason, err.Error()), ctrl.Result{Requeue: true}, nil
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}
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// Reconcile Helm release
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reconciledHr, reconcileErr := r.reconcileRelease(ctx, log, *hr.DeepCopy(), chart, values)
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if reconcileErr != nil {
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r.event(hr, hc.GetArtifact().Revision, events.EventSeverityError,
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fmt.Sprintf("reconciliation failed: %s", reconcileErr.Error()))
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}
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return reconciledHr, ctrl.Result{RequeueAfter: hr.Spec.Interval.Duration}, reconcileErr
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}
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type HelmReleaseReconcilerOptions struct {
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MaxConcurrentReconciles int
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DependencyRequeueInterval time.Duration
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}
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func (r *HelmReleaseReconciler) reconcileRelease(ctx context.Context, log logr.Logger,
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hr v2.HelmRelease, chart *chart.Chart, values chartutil.Values) (v2.HelmRelease, error) {
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// Initialize Helm action runner
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getter, err := r.getRESTClientGetter(ctx, hr)
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if err != nil {
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return v2.HelmReleaseNotReady(hr, v2.InitFailedReason, err.Error()), err
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}
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run, err := runner.NewRunner(getter, hr.GetNamespace(), r.Log)
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if err != nil {
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return v2.HelmReleaseNotReady(hr, v2.InitFailedReason, "failed to initialize Helm action runner"), err
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}
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// Determine last release revision.
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rel, observeLastReleaseErr := run.ObserveLastRelease(hr)
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if observeLastReleaseErr != nil {
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err = fmt.Errorf("failed to get last release revision: %w", observeLastReleaseErr)
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return v2.HelmReleaseNotReady(hr, v2.GetLastReleaseFailedReason, "failed to get last release revision"), err
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}
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// Register the current release attempt.
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revision := chart.Metadata.Version
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releaseRevision := util.ReleaseRevision(rel)
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valuesChecksum := util.ValuesChecksum(values)
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hr, hasNewState := v2.HelmReleaseAttempted(hr, revision, releaseRevision, valuesChecksum)
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if hasNewState {
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hr = v2.HelmReleaseProgressing(hr)
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if updateStatusErr := r.patchStatus(ctx, &hr); updateStatusErr != nil {
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log.Error(updateStatusErr, "unable to update status after state update")
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return hr, updateStatusErr
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}
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// Record progressing status
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r.recordReadiness(hr)
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}
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// Check status of any previous release attempt.
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released := apimeta.FindStatusCondition(hr.Status.Conditions, v2.ReleasedCondition)
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if released != nil {
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switch released.Status {
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// Succeed if the previous release attempt succeeded.
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case metav1.ConditionTrue:
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return v2.HelmReleaseReady(hr), nil
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case metav1.ConditionFalse:
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// Fail if the previous release attempt remediation failed.
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remediated := apimeta.FindStatusCondition(hr.Status.Conditions, v2.RemediatedCondition)
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if remediated != nil && remediated.Status == metav1.ConditionFalse {
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err = fmt.Errorf("previous release attempt remediation failed")
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return v2.HelmReleaseNotReady(hr, remediated.Reason, remediated.Message), err
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}
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}
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// Fail if install retries are exhausted.
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if hr.Spec.GetInstall().GetRemediation().RetriesExhausted(hr) {
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err = fmt.Errorf("install retries exhausted")
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return v2.HelmReleaseNotReady(hr, released.Reason, released.Message), err
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}
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// Fail if there is a release and upgrade retries are exhausted.
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// This avoids failing after an upgrade uninstall remediation strategy.
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if rel != nil && hr.Spec.GetUpgrade().GetRemediation().RetriesExhausted(hr) {
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err = fmt.Errorf("upgrade retries exhausted")
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return v2.HelmReleaseNotReady(hr, released.Reason, released.Message), err
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}
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}
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// Deploy the release.
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var deployAction v2.DeploymentAction
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if rel == nil {
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deployAction = hr.Spec.GetInstall()
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rel, err = run.Install(hr, chart, values)
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err = r.handleHelmActionResult(&hr, revision, err, deployAction.GetDescription(), v2.ReleasedCondition, v2.InstallSucceededReason, v2.InstallFailedReason)
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} else {
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deployAction = hr.Spec.GetUpgrade()
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rel, err = run.Upgrade(hr, chart, values)
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err = r.handleHelmActionResult(&hr, revision, err, deployAction.GetDescription(), v2.ReleasedCondition, v2.UpgradeSucceededReason, v2.UpgradeFailedReason)
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}
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remediation := deployAction.GetRemediation()
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// If there is a new release revision...
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if util.ReleaseRevision(rel) > releaseRevision {
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// Ensure release is not marked remediated.
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apimeta.RemoveStatusCondition(&hr.Status.Conditions, v2.RemediatedCondition)
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// If new release revision is successful and tests are enabled, run them.
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if err == nil && hr.Spec.GetTest().Enable {
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_, testErr := run.Test(hr)
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testErr = r.handleHelmActionResult(&hr, revision, testErr, "test", v2.TestSuccessCondition, v2.TestSucceededReason, v2.TestFailedReason)
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// Propagate any test error if not marked ignored.
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if testErr != nil && !remediation.MustIgnoreTestFailures(hr.Spec.GetTest().IgnoreFailures) {
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testsPassing := apimeta.FindStatusCondition(hr.Status.Conditions, v2.TestSuccessCondition)
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meta.SetResourceCondition(&hr, v2.ReleasedCondition, metav1.ConditionFalse, testsPassing.Reason, testsPassing.Message)
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err = testErr
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}
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}
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}
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if err != nil {
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// Increment failure count for deployment action.
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remediation.IncrementFailureCount(&hr)
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// Remediate deployment failure if necessary.
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if !remediation.RetriesExhausted(hr) || remediation.MustRemediateLastFailure() {
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if util.ReleaseRevision(rel) <= releaseRevision {
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log.Info(fmt.Sprintf("skipping remediation, no new release revision created"))
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} else {
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var remediationErr error
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switch remediation.GetStrategy() {
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case v2.RollbackRemediationStrategy:
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rollbackErr := run.Rollback(hr)
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remediationErr = r.handleHelmActionResult(&hr, revision, rollbackErr, "rollback",
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v2.RemediatedCondition, v2.RollbackSucceededReason, v2.RollbackFailedReason)
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case v2.UninstallRemediationStrategy:
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uninstallErr := run.Uninstall(hr)
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remediationErr = r.handleHelmActionResult(&hr, revision, uninstallErr, "uninstall",
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v2.RemediatedCondition, v2.UninstallSucceededReason, v2.UninstallFailedReason)
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}
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if remediationErr != nil {
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err = remediationErr
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}
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}
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// Determine release after remediation.
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rel, observeLastReleaseErr = run.ObserveLastRelease(hr)
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if observeLastReleaseErr != nil {
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err = &ConditionError{
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Reason: v2.GetLastReleaseFailedReason,
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Err: errors.New("failed to get last release revision after remediation"),
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}
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}
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}
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}
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hr.Status.LastReleaseRevision = util.ReleaseRevision(rel)
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if err != nil {
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reason := meta.ReconciliationFailedReason
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var cerr *ConditionError
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if errors.As(err, &cerr) {
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reason = cerr.Reason
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}
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return v2.HelmReleaseNotReady(hr, reason, err.Error()), err
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}
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return v2.HelmReleaseReady(hr), nil
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}
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func (r *HelmReleaseReconciler) checkDependencies(hr v2.HelmRelease) error {
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for _, d := range hr.Spec.DependsOn {
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if d.Namespace == "" {
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d.Namespace = hr.GetNamespace()
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}
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dName := types.NamespacedName(d)
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var dHr v2.HelmRelease
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err := r.Get(context.Background(), dName, &dHr)
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if err != nil {
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return fmt.Errorf("unable to get '%s' dependency: %w", dName, err)
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}
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if len(dHr.Status.Conditions) == 0 || dHr.Generation != dHr.Status.ObservedGeneration {
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return fmt.Errorf("dependency '%s' is not ready", dName)
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}
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if !apimeta.IsStatusConditionTrue(dHr.Status.Conditions, meta.ReadyCondition) {
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return fmt.Errorf("dependency '%s' is not ready", dName)
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}
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}
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return nil
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}
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func (r *HelmReleaseReconciler) getRESTClientGetter(ctx context.Context, hr v2.HelmRelease) (genericclioptions.RESTClientGetter, error) {
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if hr.Spec.KubeConfig == nil {
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// impersonate service account if specified
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if hr.Spec.ServiceAccountName != "" {
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token, err := r.getServiceAccountToken(ctx, hr)
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if err != nil {
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return nil, fmt.Errorf("could not impersonate ServiceAccount '%s': %w", hr.Spec.ServiceAccountName, err)
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}
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config := *r.Config
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config.BearerToken = token
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return kube.NewInClusterRESTClientGetter(&config, hr.GetReleaseNamespace()), nil
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}
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return kube.NewInClusterRESTClientGetter(r.Config, hr.GetReleaseNamespace()), nil
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}
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secretName := types.NamespacedName{
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Namespace: hr.GetNamespace(),
|
|
Name: hr.Spec.KubeConfig.SecretRef.Name,
|
|
}
|
|
var secret corev1.Secret
|
|
if err := r.Get(ctx, secretName, &secret); err != nil {
|
|
return nil, fmt.Errorf("could not find KubeConfig secret '%s': %w", secretName, err)
|
|
}
|
|
kubeConfig, ok := secret.Data["value"]
|
|
if !ok {
|
|
return nil, fmt.Errorf("KubeConfig secret '%s' does not contain a 'value' key", secretName)
|
|
}
|
|
return kube.NewMemoryRESTClientGetter(kubeConfig, hr.GetReleaseNamespace()), nil
|
|
}
|
|
|
|
func (r *HelmReleaseReconciler) getServiceAccountToken(ctx context.Context, hr v2.HelmRelease) (string, error) {
|
|
namespacedName := types.NamespacedName{
|
|
Namespace: hr.Namespace,
|
|
Name: hr.Spec.ServiceAccountName,
|
|
}
|
|
|
|
var serviceAccount corev1.ServiceAccount
|
|
err := r.Client.Get(ctx, namespacedName, &serviceAccount)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
secretName := types.NamespacedName{
|
|
Namespace: hr.Namespace,
|
|
Name: hr.Spec.ServiceAccountName,
|
|
}
|
|
|
|
for _, secret := range serviceAccount.Secrets {
|
|
if strings.HasPrefix(secret.Name, fmt.Sprintf("%s-token", serviceAccount.Name)) {
|
|
secretName.Name = secret.Name
|
|
break
|
|
}
|
|
}
|
|
|
|
var secret corev1.Secret
|
|
err = r.Client.Get(ctx, secretName, &secret)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
var token string
|
|
if data, ok := secret.Data["token"]; ok {
|
|
token = string(data)
|
|
} else {
|
|
return "", fmt.Errorf("the service account secret '%s' does not containt a token", secretName.String())
|
|
}
|
|
|
|
return token, nil
|
|
}
|
|
|
|
// composeValues attempts to resolve all v2beta1.ValuesReference resources
|
|
// and merges them as defined. Referenced resources are only retrieved once
|
|
// to ensure a single version is taken into account during the merge.
|
|
func (r *HelmReleaseReconciler) composeValues(ctx context.Context, hr v2.HelmRelease) (chartutil.Values, error) {
|
|
result := chartutil.Values{}
|
|
|
|
configMaps := make(map[string]*corev1.ConfigMap)
|
|
secrets := make(map[string]*corev1.Secret)
|
|
|
|
for _, v := range hr.Spec.ValuesFrom {
|
|
namespacedName := types.NamespacedName{Namespace: hr.Namespace, Name: v.Name}
|
|
var valuesData []byte
|
|
|
|
switch v.Kind {
|
|
case "ConfigMap":
|
|
resource, ok := configMaps[namespacedName.String()]
|
|
if !ok {
|
|
// The resource may not exist, but we want to act on a single version
|
|
// of the resource in case the values reference is marked as optional.
|
|
configMaps[namespacedName.String()] = nil
|
|
|
|
resource = &corev1.ConfigMap{}
|
|
if err := r.Get(ctx, namespacedName, resource); err != nil {
|
|
if apierrors.IsNotFound(err) {
|
|
if v.Optional {
|
|
r.Log.Info("could not find optional %s '%s'", v.Kind, namespacedName)
|
|
continue
|
|
}
|
|
return nil, fmt.Errorf("could not find %s '%s'", v.Kind, namespacedName)
|
|
}
|
|
return nil, err
|
|
}
|
|
configMaps[namespacedName.String()] = resource
|
|
}
|
|
if resource == nil {
|
|
if v.Optional {
|
|
r.Log.Info("could not find optional %s '%s'", v.Kind, namespacedName)
|
|
continue
|
|
}
|
|
return nil, fmt.Errorf("could not find %s '%s'", v.Kind, namespacedName)
|
|
}
|
|
if data, ok := resource.Data[v.GetValuesKey()]; !ok {
|
|
return nil, fmt.Errorf("missing key '%s' in %s '%s'", v.GetValuesKey(), v.Kind, namespacedName)
|
|
} else {
|
|
valuesData = []byte(data)
|
|
}
|
|
case "Secret":
|
|
resource, ok := secrets[namespacedName.String()]
|
|
if !ok {
|
|
// The resource may not exist, but we want to act on a single version
|
|
// of the resource in case the values reference is marked as optional.
|
|
secrets[namespacedName.String()] = nil
|
|
|
|
resource = &corev1.Secret{}
|
|
if err := r.Get(ctx, namespacedName, resource); err != nil {
|
|
if apierrors.IsNotFound(err) {
|
|
if v.Optional {
|
|
r.Log.Info("could not find optional %s '%s'", v.Kind, namespacedName)
|
|
continue
|
|
}
|
|
return nil, fmt.Errorf("could not find %s '%s'", v.Kind, namespacedName)
|
|
}
|
|
return nil, err
|
|
}
|
|
secrets[namespacedName.String()] = resource
|
|
}
|
|
if resource == nil {
|
|
if v.Optional {
|
|
r.Log.Info("could not find optional %s '%s'", v.Kind, namespacedName)
|
|
continue
|
|
}
|
|
return nil, fmt.Errorf("could not find %s '%s'", v.Kind, namespacedName)
|
|
}
|
|
if data, ok := resource.Data[v.GetValuesKey()]; !ok {
|
|
return nil, fmt.Errorf("missing key '%s' in %s '%s'", v.GetValuesKey(), v.Kind, namespacedName)
|
|
} else {
|
|
valuesData = data
|
|
}
|
|
default:
|
|
return nil, fmt.Errorf("unsupported ValuesReference kind '%s'", v.Kind)
|
|
}
|
|
switch v.TargetPath {
|
|
case "":
|
|
values, err := chartutil.ReadValues(valuesData)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to read values from key '%s' in %s '%s': %w", v.GetValuesKey(), v.Kind, namespacedName, err)
|
|
}
|
|
result = util.MergeMaps(result, values)
|
|
default:
|
|
// TODO(hidde): this is a bit of hack, as it mimics the way the option string is passed
|
|
// to Helm from a CLI perspective. Given the parser is however not publicly accessible
|
|
// while it contains all logic around parsing the target path, it is a fair trade-off.
|
|
singleValue := v.TargetPath + "=" + string(valuesData)
|
|
if err := strvals.ParseInto(singleValue, result); err != nil {
|
|
return nil, fmt.Errorf("unable to merge value from key '%s' in %s '%s' into target path '%s': %w", v.GetValuesKey(), v.Kind, namespacedName, v.TargetPath, err)
|
|
}
|
|
}
|
|
}
|
|
return util.MergeMaps(result, hr.GetValues()), nil
|
|
}
|
|
|
|
// reconcileDelete deletes the v1beta1.HelmChart of the v2beta1.HelmRelease,
|
|
// and uninstalls the Helm release if the resource has not been suspended.
|
|
func (r *HelmReleaseReconciler) reconcileDelete(ctx context.Context, logger logr.Logger, hr v2.HelmRelease) (ctrl.Result, error) {
|
|
r.recordReadiness(hr)
|
|
|
|
if err := r.deleteHelmChart(ctx, &hr); err != nil {
|
|
return ctrl.Result{}, err
|
|
}
|
|
|
|
if hr.Spec.Suspend {
|
|
logger.Info("skipping Helm uninstall for suspended resource")
|
|
return ctrl.Result{}, nil
|
|
}
|
|
|
|
if err := r.uninstallHelmRelease(logger, hr); err != nil {
|
|
return ctrl.Result{}, err
|
|
}
|
|
|
|
// Remove our finalizer from the list and update it
|
|
controllerutil.RemoveFinalizer(&hr, v2.HelmReleaseFinalizer)
|
|
if err := r.Update(ctx, &hr); err != nil {
|
|
return ctrl.Result{}, err
|
|
}
|
|
|
|
return ctrl.Result{}, nil
|
|
}
|
|
|
|
// uninstallHelmRelease uninstalls the deployed Helm release of
|
|
// the given v2beta1.HelmRelease.
|
|
func (r *HelmReleaseReconciler) uninstallHelmRelease(logger logr.Logger, hr v2.HelmRelease) error {
|
|
getter, err := r.getRESTClientGetter(context.TODO(), hr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
run, err := runner.NewRunner(getter, hr.GetNamespace(), logger)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rel, err := run.ObserveLastRelease(hr)
|
|
if err != nil {
|
|
err = fmt.Errorf("failed to perform Helm uninstall for deleted resource: %w", err)
|
|
return err
|
|
}
|
|
if rel == nil {
|
|
return nil
|
|
}
|
|
err = run.Uninstall(hr)
|
|
if err != nil {
|
|
err = fmt.Errorf("failed to perform Helm uninstall for deleted resource: %w", err)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (r *HelmReleaseReconciler) handleHelmActionResult(hr *v2.HelmRelease, revision string, err error, action string, condition string, succeededReason string, failedReason string) error {
|
|
if err != nil {
|
|
msg := fmt.Sprintf("Helm %s failed: %s", action, err.Error())
|
|
meta.SetResourceCondition(hr, condition, metav1.ConditionFalse, failedReason, msg)
|
|
r.event(*hr, revision, events.EventSeverityError, msg)
|
|
return &ConditionError{Reason: failedReason, Err: errors.New(msg)}
|
|
} else {
|
|
msg := fmt.Sprintf("Helm %s succeeded", action)
|
|
meta.SetResourceCondition(hr, condition, metav1.ConditionTrue, succeededReason, msg)
|
|
r.event(*hr, revision, events.EventSeverityInfo, msg)
|
|
return nil
|
|
}
|
|
}
|
|
|
|
func (r *HelmReleaseReconciler) patchStatus(ctx context.Context, hr *v2.HelmRelease) error {
|
|
key, err := client.ObjectKeyFromObject(hr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
latest := &v2.HelmRelease{}
|
|
if err := r.Client.Get(ctx, key, latest); err != nil {
|
|
return err
|
|
}
|
|
return r.Client.Status().Patch(ctx, hr, client.MergeFrom(latest))
|
|
}
|
|
|
|
func (r *HelmReleaseReconciler) requestsForHelmChartChange(obj handler.MapObject) []reconcile.Request {
|
|
hc, ok := obj.Object.(*sourcev1.HelmChart)
|
|
if !ok {
|
|
panic(fmt.Sprintf("Expected a HelmChart, got %T", hc))
|
|
}
|
|
// If we do not have an artifact, we have no requests to make
|
|
if hc.GetArtifact() == nil {
|
|
return nil
|
|
}
|
|
|
|
ctx := context.Background()
|
|
var list v2.HelmReleaseList
|
|
if err := r.List(ctx, &list, client.MatchingFields{
|
|
v2.SourceIndexKey: fmt.Sprintf("%s/%s", obj.Meta.GetNamespace(), obj.Meta.GetName()),
|
|
}); err != nil {
|
|
r.Log.Error(err, "failed to list HelmReleases for HelmChart")
|
|
return nil
|
|
}
|
|
|
|
var reqs []reconcile.Request
|
|
for _, i := range list.Items {
|
|
// If the revision of the artifact equals to the last attempted revision,
|
|
// we should not make a request for this HelmRelease
|
|
if hc.GetArtifact().Revision == i.Status.LastAttemptedRevision {
|
|
continue
|
|
}
|
|
req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: i.GetNamespace(), Name: i.GetName()}}
|
|
reqs = append(reqs, req)
|
|
r.Log.Info("requesting reconciliation due to GitRepository revision change",
|
|
strings.ToLower(v2.HelmReleaseKind), &req,
|
|
"revision", hc.GetArtifact().Revision)
|
|
}
|
|
return reqs
|
|
}
|
|
|
|
// event emits a Kubernetes event and forwards the event to notification controller if configured.
|
|
func (r *HelmReleaseReconciler) event(hr v2.HelmRelease, revision, severity, msg string) {
|
|
r.EventRecorder.Event(&hr, "Normal", severity, msg)
|
|
objRef, err := reference.GetReference(r.Scheme, &hr)
|
|
if err != nil {
|
|
r.Log.WithValues(
|
|
"request",
|
|
fmt.Sprintf("%s/%s", hr.GetNamespace(), hr.GetName()),
|
|
).Error(err, "unable to send event")
|
|
return
|
|
}
|
|
|
|
if r.ExternalEventRecorder != nil {
|
|
var meta map[string]string
|
|
if revision != "" {
|
|
meta = map[string]string{"revision": revision}
|
|
}
|
|
if err := r.ExternalEventRecorder.Eventf(*objRef, meta, severity, severity, msg); err != nil {
|
|
r.Log.WithValues(
|
|
"request",
|
|
fmt.Sprintf("%s/%s", hr.GetNamespace(), hr.GetName()),
|
|
).Error(err, "unable to send event")
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func (r *HelmReleaseReconciler) recordReadiness(hr v2.HelmRelease) {
|
|
if r.MetricsRecorder == nil {
|
|
return
|
|
}
|
|
|
|
objRef, err := reference.GetReference(r.Scheme, &hr)
|
|
if err != nil {
|
|
r.Log.WithValues(
|
|
strings.ToLower(hr.Kind),
|
|
fmt.Sprintf("%s/%s", hr.GetNamespace(), hr.GetName()),
|
|
).Error(err, "unable to record readiness metric")
|
|
return
|
|
}
|
|
if rc := apimeta.FindStatusCondition(hr.Status.Conditions, meta.ReadyCondition); rc != nil {
|
|
r.MetricsRecorder.RecordCondition(*objRef, *rc, !hr.DeletionTimestamp.IsZero())
|
|
} else {
|
|
r.MetricsRecorder.RecordCondition(*objRef, metav1.Condition{
|
|
Type: meta.ReadyCondition,
|
|
Status: metav1.ConditionUnknown,
|
|
}, !hr.DeletionTimestamp.IsZero())
|
|
}
|
|
}
|