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preprocessor.go
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preprocessor.go
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package preprocessor
import (
"context"
"fmt"
"emperror.dev/errors"
"github.com/banzaicloud/operator-tools/pkg/reconciler"
loggingv1beta1 "github.com/rancher/opni/apis/logging/v1beta1"
"github.com/rancher/opni/pkg/opensearch/certs"
"github.com/rancher/opni/pkg/resources"
"github.com/rancher/opni/pkg/util/k8sutil"
"k8s.io/client-go/util/retry"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
type Reconciler struct {
ReconcilerOptions
reconciler.ResourceReconciler
client client.Client
preprocessor *loggingv1beta1.Preprocessor
ctx context.Context
}
type ReconcilerOptions struct {
certMgr certs.OpensearchCertReconcile
resourceOptions []reconciler.ResourceReconcilerOption
}
type ReconcilerOption func(*ReconcilerOptions)
func (o *ReconcilerOptions) apply(opts ...ReconcilerOption) {
for _, op := range opts {
op(o)
}
}
func WithCertManager(certMgr certs.OpensearchCertReconcile) ReconcilerOption {
return func(o *ReconcilerOptions) {
o.certMgr = certMgr
}
}
func WithResourceOptions(opts ...reconciler.ResourceReconcilerOption) ReconcilerOption {
return func(o *ReconcilerOptions) {
o.resourceOptions = opts
}
}
func NewReconciler(
ctx context.Context,
instance *loggingv1beta1.Preprocessor,
c client.Client,
opts ...ReconcilerOption,
) *Reconciler {
options := ReconcilerOptions{}
options.apply(opts...)
if options.certMgr == nil {
certMgr := certs.NewCertMgrOpensearchCertManager(
ctx,
certs.WithNamespace(instance.Namespace),
certs.WithCluster(instance.Name),
)
options.certMgr = certMgr.(certs.OpensearchCertReconcile)
}
return &Reconciler{
ReconcilerOptions: options,
ResourceReconciler: reconciler.NewReconcilerWith(c,
append(options.resourceOptions, reconciler.WithLog(log.FromContext(ctx)))...),
client: c,
preprocessor: instance,
ctx: ctx,
}
}
func (r *Reconciler) Reconcile() (retResult *reconcile.Result, retErr error) {
lg := log.FromContext(r.ctx)
conditions := []string{}
defer func() {
// When the reconciler is done, figure out what the state of the opnicluster
// is and set it in the state field accordingly.
op := k8sutil.LoadResult(retResult, retErr)
err := retry.RetryOnConflict(retry.DefaultRetry, func() error {
if err := r.client.Get(r.ctx, client.ObjectKeyFromObject(r.preprocessor), r.preprocessor); err != nil {
return err
}
r.preprocessor.Status.Conditions = conditions
if op.ShouldRequeue() {
if retErr != nil {
// If an error occurred, the state should be set to error
r.preprocessor.Status.State = loggingv1beta1.PreprocessorStateError
} else {
// If no error occurred, but we need to requeue, the state should be
// set to working
r.preprocessor.Status.State = loggingv1beta1.PreprocessorStatePending
}
} else if len(r.preprocessor.Status.Conditions) == 0 {
// If we are not requeueing and there are no conditions, the state should
// be set to ready
r.preprocessor.Status.State = loggingv1beta1.PreprocessorStateReady
}
return r.client.Status().Update(r.ctx, r.preprocessor)
})
if err != nil {
lg.Error(err, "failed to update status")
}
}()
if r.preprocessor.Spec.OpensearchCluster == nil {
return nil, errors.New("missing opensearch reference")
}
var resourceList []resources.Resource
config, configHash := r.configMap()
resourceList = append(resourceList, config)
resourceList = append(resourceList, r.caChain())
resourceList = append(resourceList, r.deployment(configHash))
resourceList = append(resourceList, r.service())
for _, factory := range resourceList {
o, state, err := factory()
if err != nil {
retErr = errors.WrapIf(err, "failed to create object")
return
}
if o == nil {
panic(fmt.Sprintf("reconciler %#v created a nil object", factory))
}
result, err := r.ReconcileResource(o, state)
if err != nil {
retErr = errors.WrapWithDetails(err, "failed to reconcile resource",
"resource", o.GetObjectKind().GroupVersionKind())
return
}
if result != nil {
retResult = result
}
}
return
}