UPSTREAM: 1663: Recommended leaderelection setting

Extensive e2e tests revealed that operator-controller might run into
leader election timeouts during cluster bootstrap, causing sporadic
alerts being generated.

This commit uses recommended settings for leaderelection
LeaseDuration: 15s -> 137s
RenewDeadline: 10s -> 107s
RetryPeriod:    2s ->  26s

Warning: This will increase potential down-time of catalogd to 163s in
the worst case (up from 17s). (LeaseDuration + RetryPeriod)

Author: thetechnick

catalogd/cmd/catalogd/main.go

@@ -42,6 +42,7 @@ import (
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	"k8s.io/klog/v2"
 	"k8s.io/klog/v2/textlogger"
+	"k8s.io/utils/ptr"
 	ctrl "sigs.k8s.io/controller-runtime"
 	crcache "sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/certwatcher"
@@ -231,8 +232,14 @@ func main() {
 		HealthProbeBindAddress: probeAddr,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "catalogd-operator-lock",
-		WebhookServer:          webhookServer,
-		Cache:                  cacheOptions,
+		// Recommended Leader Election values
+		// https://github.com/openshift/enhancements/blob/61581dcd985130357d6e4b0e72b87ee35394bf6e/CONVENTIONS.md#handling-kube-apiserver-disruption
+		LeaseDuration: ptr.To(137 * time.Second),
+		RenewDeadline: ptr.To(107 * time.Second),
+		RetryPeriod:   ptr.To(26 * time.Second),
+
+		WebhookServer: webhookServer,
+		Cache:         cacheOptions,
 	})
 	if err != nil {
 		setupLog.Error(err, "unable to create manager")

cmd/operator-controller/main.go

@@ -40,6 +40,7 @@ import (
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	"k8s.io/klog/v2"
 	"k8s.io/klog/v2/textlogger"
+	"k8s.io/utils/ptr"
 	ctrl "sigs.k8s.io/controller-runtime"
 	crcache "sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/certwatcher"
@@ -229,7 +230,13 @@ func main() {
 		HealthProbeBindAddress: probeAddr,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "9c4404e7.operatorframework.io",
-		Cache:                  cacheOptions,
+		// Recommended Leader Election values
+		// https://github.com/openshift/enhancements/blob/61581dcd985130357d6e4b0e72b87ee35394bf6e/CONVENTIONS.md#handling-kube-apiserver-disruption
+		LeaseDuration: ptr.To(137 * time.Second),
+		RenewDeadline: ptr.To(107 * time.Second),
+		RetryPeriod:   ptr.To(26 * time.Second),
+
+		Cache: cacheOptions,
 		// LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily
 		// when the Manager ends. This requires the binary to immediately end when the
 		// Manager is stopped, otherwise, this setting is unsafe. Setting this significantly

vendor/carvel.dev/kapp/LICENSE

@@ -0,0 +1,176 @@
+                                Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      and distribution as defined by Sections 1 through 9 of this document.
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
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+      the Work and Derivative Works thereof.
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
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+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      (except as stated in this section) patent license to make, have made,
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+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
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+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+      (d) If the Work includes a "NOTICE" text file as part of its
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+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+   END OF TERMS AND CONDITIONS

vendor/carvel.dev/kapp/NOTICE

@@ -0,0 +1,15 @@
+kapp
+
+Copyright (c) 2019-Present Pivotal Software, Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

vendor/carvel.dev/kapp/pkg/kapp/cmd/core/age_value.go

@@ -0,0 +1,40 @@
+// Copyright 2024 The Carvel Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package core
+
+import (
+	"time"
+
+	uitable "github.com/cppforlife/go-cli-ui/ui/table"
+	"k8s.io/apimachinery/pkg/util/duration"
+)
+
+type ValueAge struct {
+	T time.Time
+}
+
+var _ uitable.Value = ValueAge{}
+
+func NewValueAge(t time.Time) ValueAge { return ValueAge{T: t} }
+
+func (t ValueAge) String() string {
+	if t.T.IsZero() {
+		return ""
+	}
+	return duration.ShortHumanDuration(time.Now().Sub(t.T))
+}
+
+func (t ValueAge) Value() uitable.Value { return t }
+
+func (t ValueAge) Compare(other uitable.Value) int {
+	otherT := other.(ValueAge).T
+	switch {
+	case t.T.Equal(otherT):
+		return 0
+	case t.T.Before(otherT):
+		return -1
+	default:
+		return 1
+	}
+}

vendor/carvel.dev/kapp/pkg/kapp/cmd/core/cancel_signals.go

@@ -0,0 +1,24 @@
+// Copyright 2024 The Carvel Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package core
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+type CancelSignals struct{}
+
+func (CancelSignals) Watch(stopFunc func()) {
+	signalCh := make(chan os.Signal, 1)
+	signal.Notify(signalCh, syscall.SIGINT, syscall.SIGHUP)
+	go func() {
+		defer signal.Stop(signalCh)
+		select {
+		case <-signalCh:
+			stopFunc()
+		}
+	}()
+}