Skip to content

[release-4.10] Bug 2108292: pkg/cvo: retain initial completed update history entry #798

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
openshift-ci merged 1 commit into from
Jul 19, 2022
Merged

[release-4.10] Bug 2108292: pkg/cvo: retain initial completed update history entry #798

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 14 additions & 11 deletions pkg/cvo/status.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,10 @@ const (
// cannot reach the desired state. It is considered more serious than Degraded
// and indicates the cluster is not healthy.
ClusterStatusFailing = configv1.ClusterStatusConditionType("Failing")

// MaxHistory is the maximum size of ClusterVersion history. Once exceeded
// ClusterVersion history will be pruned.
MaxHistory = 50
)

func mergeEqualVersions(current *configv1.UpdateHistory, desired configv1.Release) bool {
Expand Down Expand Up @@ -128,26 +132,25 @@ func mergeOperatorHistory(config *configv1.ClusterVersion, desired configv1.Rele
}

// TODO: prune Z versions over transitions to Y versions, keep initial installed version
pruneStatusHistory(config, 50)
pruneStatusHistory(config, MaxHistory)

config.Status.Desired = desired
}

// pruneStatusHistory maintains history size at MaxHistory by removing entry at index MaxHistory
// unless that entry is a completed update in which case entry at MaxHistory-1 is removed thereby
// retaining the initial completed version.
func pruneStatusHistory(config *configv1.ClusterVersion, maxHistory int) {
if len(config.Status.History) <= maxHistory {
return
}
for i, item := range config.Status.History {
if item.State != configv1.CompletedUpdate {
continue
}
// guarantee the last position in the history is always a completed item
if i >= maxHistory {
config.Status.History[maxHistory-1] = item
}
break
if config.Status.History[maxHistory].State == configv1.CompletedUpdate {
item := config.Status.History[maxHistory]
config.Status.History = config.Status.History[0 : maxHistory-1]
config.Status.History = append(config.Status.History, item)
} else {
config.Status.History = config.Status.History[:maxHistory]
}
config.Status.History = config.Status.History[:maxHistory]
}

// ClusterVersionInvalid indicates that the cluster version has an error that prevents the server from
Expand Down
71 changes: 70 additions & 1 deletion pkg/cvo/status_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import (
"fmt"
"reflect"
"testing"
"time"

metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/diff"
Expand Down Expand Up @@ -80,14 +81,16 @@ func Test_pruneStatusHistory(t *testing.T) {
want []configv1.UpdateHistory
}{
{
name: "max history 2",
config: obj.DeepCopy(),
maxHistory: 2,
want: []configv1.UpdateHistory{
{State: configv1.PartialUpdate, Version: "0.0.10"},
{State: configv1.CompletedUpdate, Version: "0.0.7"},
{State: configv1.PartialUpdate, Version: "0.0.9"},
},
},
{
name: "max history 3",
config: obj.DeepCopy(),
maxHistory: 3,
want: []configv1.UpdateHistory{
Expand All @@ -97,6 +100,7 @@ func Test_pruneStatusHistory(t *testing.T) {
},
},
{
name: "max history 4",
config: obj.DeepCopy(),
maxHistory: 4,
want: []configv1.UpdateHistory{
Expand All @@ -107,6 +111,7 @@ func Test_pruneStatusHistory(t *testing.T) {
},
},
{
name: "max history 5",
config: obj.DeepCopy(),
maxHistory: 5,
want: []configv1.UpdateHistory{
Expand All @@ -118,6 +123,7 @@ func Test_pruneStatusHistory(t *testing.T) {
},
},
{
name: "max history 6",
config: obj.DeepCopy(),
maxHistory: 6,
want: []configv1.UpdateHistory{
Expand All @@ -134,12 +140,75 @@ func Test_pruneStatusHistory(t *testing.T) {
config := tt.config.DeepCopy()
pruneStatusHistory(config, tt.maxHistory)
if !reflect.DeepEqual(tt.want, config.Status.History) {
t.Logf("%v", config.Status.History)
t.Fatalf("%s", diff.ObjectReflectDiff(tt.want, config.Status.History))
}
})
}
}

func Test_mergeOperatorHistory(t *testing.T) {
obj := &configv1.ClusterVersion{}
var nowT time.Time
now := metav1.NewTime(nowT)
tests := []struct {
name string
config *configv1.ClusterVersion
first configv1.UpdateHistory
second configv1.UpdateHistory
want configv1.UpdateHistory
}{
{
name: "drop partial",
config: obj.DeepCopy(),
first: configv1.UpdateHistory{State: configv1.PartialUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
second: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
want: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
},
{
name: "keep completed",
config: obj.DeepCopy(),
first: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
second: configv1.UpdateHistory{State: configv1.PartialUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
want: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
},
{
name: "neither completed",
config: obj.DeepCopy(),
first: configv1.UpdateHistory{State: configv1.PartialUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
second: configv1.UpdateHistory{State: configv1.PartialUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
want: configv1.UpdateHistory{State: configv1.PartialUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
},
{
name: "keep first completed",
config: obj.DeepCopy(),
first: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
second: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.6", Image: "test:1"},
want: configv1.UpdateHistory{State: configv1.CompletedUpdate, CompletionTime: &now, Version: "0.0.7", Image: "test:0"},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
for i := 0; i <= MaxHistory; i++ {
image := fmt.Sprintf("test:%d", i)
if i == 0 {
mergeOperatorHistory(tt.config, configv1.Release{Image: image, Version: tt.first.Version}, false, now,
(tt.first.State == configv1.CompletedUpdate))
} else if i == 1 {
mergeOperatorHistory(tt.config, configv1.Release{Image: image, Version: tt.second.Version}, false, now,
(tt.second.State == configv1.CompletedUpdate))
} else {
version := fmt.Sprintf("%d", i)
mergeOperatorHistory(tt.config, configv1.Release{Image: image, Version: version}, false, now, true)
}
}
if !reflect.DeepEqual(tt.want, tt.config.Status.History[MaxHistory-1]) {
t.Fatalf("%s", diff.ObjectReflectDiff(tt.want, tt.config.Status.History[MaxHistory-1]))
}
})
}
}

func TestOperator_syncFailingStatus(t *testing.T) {
ctx := context.Background()
tests := []struct {
Expand Down