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jetjob_controller.go
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jetjob_controller.go
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package hazelcast
import (
"context"
"encoding/json"
"errors"
"fmt"
"net"
"path"
"strings"
"sync"
"time"
"github.com/go-logr/logr"
"github.com/hazelcast/platform-operator-agent/sidecar"
"golang.org/x/sync/errgroup"
apiErrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/util/retry"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
hazelcastv1alpha1 "github.com/hazelcast/hazelcast-platform-operator/api/v1alpha1"
"github.com/hazelcast/hazelcast-platform-operator/internal/controller"
hzclient "github.com/hazelcast/hazelcast-platform-operator/internal/hazelcast-client"
"github.com/hazelcast/hazelcast-platform-operator/internal/mtls"
n "github.com/hazelcast/hazelcast-platform-operator/internal/naming"
codecTypes "github.com/hazelcast/hazelcast-platform-operator/internal/protocol/types"
"github.com/hazelcast/hazelcast-platform-operator/internal/rest"
"github.com/hazelcast/hazelcast-platform-operator/internal/util"
)
// JetJobReconciler reconciles a JetJob object
type JetJobReconciler struct {
client.Client
Log logr.Logger
ClientRegistry hzclient.ClientRegistry
clusterStatusChecker sync.Map
phoneHomeTrigger chan struct{}
mtlsClientRegistry mtls.HttpClientRegistry
}
func NewJetJobReconciler(c client.Client, log logr.Logger, cs hzclient.ClientRegistry, mtlsClientRegistry mtls.HttpClientRegistry, pht chan struct{}) *JetJobReconciler {
return &JetJobReconciler{
Client: c,
Log: log,
ClientRegistry: cs,
mtlsClientRegistry: mtlsClientRegistry,
phoneHomeTrigger: pht,
}
}
// Role related to CRs
//+kubebuilder:rbac:groups=hazelcast.com,resources=jetjobs,verbs=get;list;watch;create;update;patch;delete,namespace=watched
//+kubebuilder:rbac:groups=hazelcast.com,resources=jetjobs/status,verbs=get;update;patch,namespace=watched
//+kubebuilder:rbac:groups=hazelcast.com,resources=jetjobs/finalizers,verbs=update,namespace=watched
func (r *JetJobReconciler) Reconcile(ctx context.Context, req ctrl.Request) (result reconcile.Result, err error) {
logger := r.Log.WithValues("hazelcast-jet-job", req.NamespacedName)
jj := &hazelcastv1alpha1.JetJob{}
err = r.Client.Get(ctx, req.NamespacedName, jj)
if err != nil {
if apiErrors.IsNotFound(err) {
logger.Info("JetJob resource not found. Ignoring since object must be deleted")
return result, nil
}
logger.Error(err, "Failed to get JetJob")
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
err = util.AddFinalizer(ctx, r.Client, jj, logger)
if err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
//Check if the JetJob CR is marked to be deleted
if jj.GetDeletionTimestamp() != nil {
err = r.executeFinalizer(ctx, jj, logger)
if err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
logger.V(util.DebugLevel).Info("Finalizer's pre-delete function executed successfully and the finalizer removed from custom resource", "Name:", n.Finalizer)
return
}
if jj.Status.Phase.IsRunning() && jj.Spec.State == hazelcastv1alpha1.RunningJobState {
logger.Info("JetJob is already running.",
"name", jj.Name, "namespace", jj.Namespace, "state", jj.Status.Phase)
return
}
if jj.Status.Phase.IsFinished() {
r.removeJobFromChecker(jj)
logger.Info("JetJob is already finished.",
"name", jj.Name, "namespace", jj.Namespace, "state", jj.Status.Phase)
return
}
jjs, err := json.Marshal(jj.Spec)
if err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(fmt.Errorf("error marshaling JetJob as JSON: %w", err)))
}
s, createdBefore := jj.ObjectMeta.Annotations[n.LastSuccessfulSpecAnnotation]
if createdBefore {
if s == string(jjs) {
logger.Info("JetJob was already applied.", "name", jj.Name, "namespace", jj.Namespace)
return
}
if err := hazelcastv1alpha1.ValidateJetJobUpdateSpec(jj); err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
} else {
jjList := &hazelcastv1alpha1.JetJobList{}
nsMatcher := client.InNamespace(req.Namespace)
if err = r.Client.List(ctx, jjList, nsMatcher); err != nil {
logger.Error(err, "Unable to fetch JetJobList")
}
if err = hazelcastv1alpha1.ValidateExistingJobName(jj, jjList); err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
}
hazelcastName := types.NamespacedName{Namespace: req.Namespace, Name: jj.Spec.HazelcastResourceName}
h := &hazelcastv1alpha1.Hazelcast{}
err = r.Client.Get(ctx, hazelcastName, h)
if err != nil {
logger.Info("Could not find hazelcast cluster", "name", hazelcastName, "err", err)
return r.updateStatus(ctx, req.NamespacedName, jetJobWithStatus(hazelcastv1alpha1.JetJobNotRunning))
}
if h.Status.Phase != hazelcastv1alpha1.Running {
logger.Info("Hazelcast cluster is not ready", "name", hazelcastName, "phase", h.Status.Phase)
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(fmt.Errorf("hazelcast cluster %s cluster is not ready", h.Name)))
}
if err = hazelcastv1alpha1.ValidateJetConfiguration(h); err != nil {
return r.updateStatus(ctx, req.NamespacedName, failedJetJobStatus(err))
}
result, err = r.applyJetJob(ctx, jj, hazelcastName, logger)
if err != nil {
return result, err
}
err = r.updateLastSuccessfulConfiguration(ctx, req.NamespacedName)
if err != nil {
logger.Info("Could not save the current successful spec as annotation to the custom resource")
}
return
}
func (r *JetJobReconciler) applyJetJob(ctx context.Context, job *hazelcastv1alpha1.JetJob, hazelcastName types.NamespacedName, logger logr.Logger) (ctrl.Result, error) {
logger.Info("Applying Jet Job")
defer logger.Info("Jet Job applied")
jjnn := types.NamespacedName{Name: job.Name, Namespace: job.Namespace}
c, err := r.ClientRegistry.GetOrCreate(ctx, hazelcastName)
if err != nil {
logger.Error(err, "Get Hazelcast Client failed")
return r.updateStatus(ctx, jjnn, failedJetJobStatus(err))
}
val, _ := r.clusterStatusChecker.LoadOrStore(hazelcastName, newJetJobStatusChecker())
checker, ok := val.(*jetJobStatusChecker)
if !ok {
logger.Error(fmt.Errorf("unable to cast jetJobStatusChecker"), "wrong type")
}
js := hzclient.NewJetService(c)
if job.Spec.State != hazelcastv1alpha1.RunningJobState {
err = r.changeJobState(ctx, job, js)
return ctrl.Result{}, err
}
if job.Status.Phase.IsSuspended() && job.Spec.State == hazelcastv1alpha1.RunningJobState {
err = js.ResumeJob(ctx, job.Status.Id)
return ctrl.Result{}, err
}
checker.storeJob(job.JobName(), jjnn)
jarName := job.Spec.JarName
if job.Spec.IsRemoteURLsEnabled() && jarName == "" {
url := job.Spec.JetRemoteFileConfiguration.RemoteURL
jarName = url[strings.LastIndex(url, "/")+1:]
}
metaData := codecTypes.DefaultExistingJarJobMetaData(job.JobName(), path.Join(n.JetJobJarsPath, jarName))
if job.Spec.MainClass != "" {
metaData.MainClass = job.Spec.MainClass
}
if job.Spec.InitialSnapshotResourceName != "" {
jjsnn := types.NamespacedName{Name: job.Spec.InitialSnapshotResourceName, Namespace: job.Namespace}
jjs := hazelcastv1alpha1.JetJobSnapshot{}
err := r.Client.Get(ctx, jjsnn, &jjs)
if err != nil {
logger.Error(err, "Error on getting JetJobSnapshot custom resource",
"snapshotResourceName", job.Spec.InitialSnapshotResourceName)
return r.updateStatus(ctx, jjnn, failedJetJobStatus(err))
}
if jjs.Status.CreationTime.IsZero() {
err := fmt.Errorf("JetJobSnapshot '%s' is not exported", job.Spec.InitialSnapshotResourceName)
logger.Error(err, "JetJobSnapshot creation time is zero")
return r.updateStatus(ctx, jjnn, failedJetJobStatus(err))
}
metaData.SnapshotName = jjs.SnapshotName()
}
if job.Spec.IsDownloadEnabled() {
logger.V(util.DebugLevel).Info("Downloading the JAR file before running the JetJob", "jj", jjnn)
if err = r.downloadFile(ctx, job, hazelcastName, jjnn, c, logger); err != nil {
logger.Error(err, "Error downloading Jar for JetJob")
return r.updateStatus(ctx, jjnn, failedJetJobStatus(err))
}
logger.V(util.DebugLevel).Info("JAR downloaded, starting the JetJob", "jj", jjnn)
}
go func(ctx context.Context, metaData codecTypes.JobMetaData, jjnn types.NamespacedName, client hzclient.Client, logger logr.Logger) {
if err = js.RunJob(ctx, metaData); err != nil {
logger.Error(err, "Error running JetJob")
_, _ = r.updateStatus(ctx, jjnn, failedJetJobStatus(err))
}
}(ctx, metaData, jjnn, c, logger)
checker.runChecker(ctx, js, r.updateJob, logger)
if util.IsPhoneHomeEnabled() && !controller.IsSuccessfullyApplied(job) {
go func() { r.phoneHomeTrigger <- struct{}{} }()
}
return r.updateStatus(ctx, jjnn, jetJobWithStatus(hazelcastv1alpha1.JetJobStarting))
}
func (r *JetJobReconciler) downloadFile(ctx context.Context, job *hazelcastv1alpha1.JetJob, hazelcastName types.NamespacedName, jjnn types.NamespacedName, client hzclient.Client, logger logr.Logger) error {
g, groupCtx := errgroup.WithContext(ctx)
mtlsClient, ok := r.mtlsClientRegistry.Get(hazelcastName.Namespace)
if !ok {
returnErr := errors.New("failed to get MTLS client")
_, _ = r.updateStatus(ctx, jjnn, failedJetJobStatus(returnErr))
}
for _, m := range client.OrderedMembers() {
m := m
g.Go(func() error {
host, _, err := net.SplitHostPort(m.Address.String())
if err != nil {
return err
}
fds, err := rest.NewFileDownloadService(hzclient.AgentUrl(host), mtlsClient)
if err != nil {
logger.Error(err, "unable to create NewFileDownloadService")
return err
}
_, err = fds.Download(groupCtx, fileDownloadReq(job))
if err != nil {
logger.Error(err, "unable to download Jar file")
}
return err
})
}
return g.Wait()
}
func fileDownloadReq(job *hazelcastv1alpha1.JetJob) sidecar.DownloadFileReq {
req := sidecar.DownloadFileReq{
FileName: job.Spec.JarName,
DestDir: n.JetJobJarsPath,
}
jrfc := job.Spec.JetRemoteFileConfiguration
if job.Spec.IsBucketEnabled() {
req.DownloadType = sidecar.BucketDownload
req.URL = jrfc.BucketConfiguration.BucketURI
req.SecretName = jrfc.BucketConfiguration.GetSecretName()
} else if job.Spec.IsRemoteURLsEnabled() {
req.DownloadType = sidecar.URLDownload
req.URL = jrfc.RemoteURL
}
return req
}
func (r *JetJobReconciler) changeJobState(ctx context.Context, jj *hazelcastv1alpha1.JetJob, js hzclient.JetService) error {
jtj := codecTypes.JetTerminateJob{
JobId: jj.Status.Id,
TerminateMode: jetJobTerminateMode(jj.Spec.State),
}
return js.UpdateJobState(ctx, jtj)
}
func jetJobTerminateMode(jjs hazelcastv1alpha1.JetJobState) codecTypes.TerminateMode {
switch jjs {
case hazelcastv1alpha1.SuspendedJobState:
return codecTypes.SuspendGracefully
case hazelcastv1alpha1.CanceledJobState:
return codecTypes.CancelGracefully
case hazelcastv1alpha1.RestartedJobState:
return codecTypes.RestartGracefully
default:
return codecTypes.CancelGracefully
}
}
func (r *JetJobReconciler) updateJob(ctx context.Context, summary codecTypes.JobAndSqlSummary, name types.NamespacedName) {
logger := r.Log.WithName("jet-job-status-checker").WithValues("hazelcast-jet-job", name)
job := &hazelcastv1alpha1.JetJob{}
err := r.Client.Get(ctx, name, job)
if err != nil {
logger.Error(err, "Unable to update jet job", "JetJob", name)
return
}
if job.Status.Phase.IsFinished() {
r.removeJobFromChecker(job)
}
job.Status.Phase = jobStatusPhase(summary.Status)
job.Status.Id = summary.JobId
job.Status.SubmissionTime = &metav1.Time{Time: time.Unix(0, summary.SubmissionTime*int64(time.Millisecond))}
if summary.CompletionTime != 0 {
job.Status.CompletionTime = &metav1.Time{Time: time.Unix(0, summary.CompletionTime*int64(time.Millisecond))}
}
job.Status.SuspensionCause = summary.SuspensionCause
job.Status.FailureText = summary.FailureText
err = r.Status().Update(ctx, job)
if err != nil {
logger.Error(err, "unable to update job status")
}
}
func (r *JetJobReconciler) removeJobFromChecker(job *hazelcastv1alpha1.JetJob) {
hzName := types.NamespacedName{Name: job.Spec.HazelcastResourceName, Namespace: job.Namespace}
val, ok := r.clusterStatusChecker.Load(hzName)
if !ok {
return
}
checker, ok := val.(*jetJobStatusChecker)
if !ok {
return
}
checker.deleteJob(job.JobName())
}
func jobStatusPhase(readStatus int32) hazelcastv1alpha1.JetJobStatusPhase {
switch readStatus {
case 0:
return hazelcastv1alpha1.JetJobNotRunning
case 1:
return hazelcastv1alpha1.JetJobStarting
case 2:
return hazelcastv1alpha1.JetJobRunning
case 3:
return hazelcastv1alpha1.JetJobSuspended
case 4:
return hazelcastv1alpha1.JetJobSuspendedExportingSnapshot
case 5:
return hazelcastv1alpha1.JetJobCompleting
case 6:
return hazelcastv1alpha1.JetJobExecutionFailed
case 7:
return hazelcastv1alpha1.JetJobCompleted
default:
return hazelcastv1alpha1.JetJobNotRunning
}
}
func (r *JetJobReconciler) updateLastSuccessfulConfiguration(ctx context.Context, name types.NamespacedName) error {
return retry.RetryOnConflict(retry.DefaultRetry, func() error {
// Always fetch the new version of the resource
jj := &hazelcastv1alpha1.JetJob{}
if err := r.Client.Get(ctx, name, jj); err != nil {
return err
}
controller.InsertLastSuccessfullyAppliedSpec(jj.Spec, jj)
return r.Client.Update(ctx, jj)
})
}
func (r *JetJobReconciler) executeFinalizer(ctx context.Context, jj *hazelcastv1alpha1.JetJob, logger logr.Logger) error {
if !controllerutil.ContainsFinalizer(jj, n.Finalizer) {
return nil
}
hzNn := types.NamespacedName{
Name: jj.Spec.HazelcastResourceName,
Namespace: jj.Namespace,
}
hz := &hazelcastv1alpha1.Hazelcast{}
err := r.Client.Get(ctx, hzNn, hz)
if err != nil {
if apiErrors.IsNotFound(err) {
logger.Info("Hazelcast resource not found. Ignoring since object must be deleted")
return r.removeCheckerAndFinalizer(ctx, jj)
}
return err
}
// If Hazelcast CR is getting deleted, the finalizer doesn't cancel the actual job
if hz.DeletionTimestamp == nil {
if err := r.stopJetExecution(ctx, jj, hzNn, logger); err != nil {
return fmt.Errorf("failed to remove finalizer: %w", err)
}
} else {
logger.Info("Hazelcast CR is being deleted, no need to cancel actual job", "hazelcast", hz.Name)
}
return r.removeCheckerAndFinalizer(ctx, jj)
}
func (r *JetJobReconciler) removeCheckerAndFinalizer(ctx context.Context, jj *hazelcastv1alpha1.JetJob) error {
r.removeJobFromChecker(jj)
controllerutil.RemoveFinalizer(jj, n.Finalizer)
if err := r.Update(ctx, jj); err != nil {
return fmt.Errorf("failed to remove finalizer from custom resource: %w", err)
}
return nil
}
func (r *JetJobReconciler) stopJetExecution(ctx context.Context, jj *hazelcastv1alpha1.JetJob, hzNn types.NamespacedName, logger logr.Logger) error {
if jj.Status.Id == 0 {
logger.Info("Jet job ID is 0", "name", jj.Name, "namespace", jj.Namespace)
return nil
}
c, err := r.ClientRegistry.GetOrCreate(ctx, hzNn)
if err != nil {
logger.Error(err, "Get Hazelcast Client failed")
return err
}
js := hzclient.NewJetService(c)
terminateJob := codecTypes.JetTerminateJob{
JobId: jj.Status.Id,
TerminateMode: codecTypes.CancelForcefully,
}
if err = js.UpdateJobState(ctx, terminateJob); err != nil {
logger.Error(err, "Could not terminate JetJob")
return err
}
return nil
}
func (r *JetJobReconciler) updateStatus(ctx context.Context, name types.NamespacedName, options *jetJobStatusBuilder) (ctrl.Result, error) {
err := retry.RetryOnConflict(retry.DefaultRetry, func() error {
// Always fetch the new version of the resource
jj := &hazelcastv1alpha1.JetJob{}
if err := r.Get(ctx, name, jj); err != nil {
return err
}
jj.Status.Phase = options.status
if options.err != nil {
jj.Status.FailureText = options.err.Error()
}
return r.Status().Update(ctx, jj)
})
if options.status == hazelcastv1alpha1.JetJobFailed {
return ctrl.Result{}, options.err
}
if options.status == hazelcastv1alpha1.JetJobNotRunning {
return ctrl.Result{Requeue: true, RequeueAfter: 1 * time.Second}, nil
}
return ctrl.Result{}, err
}
// SetupWithManager sets up the controller with the Manager.
func (r *JetJobReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&hazelcastv1alpha1.JetJob{}).
Complete(r)
}