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Scope Deployment and PodDisruptionBudget cache to maintenance objects #318

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Scope Deployment and PodDisruptionBudget cache to maintenance objects #318

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33 changes: 22 additions & 11 deletions cmd/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,9 @@ import (

"go.uber.org/zap"
"go.uber.org/zap/zapcore"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
policyv1 "k8s.io/api/policy/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
Expand Down Expand Up @@ -179,7 +181,24 @@ func main() {
bininfo.CommitOr("edge"))

leaderElectionID := "4c28796a.cloud.sap"
var cacheOptions cache.Options
// Deployments and PodDisruptionBudgets owned by the maintenance controller
// always live in kube-system and carry the cobaltcore-maintenance-controller
// label; restrict the cache to exactly those objects.
maintenanceSelector, err := labels.Parse("cobaltcore-maintenance-controller")
if err != nil {
setupLog.Error(err, "unable to parse maintenance label selector")
os.Exit(1)
}
maintenanceCacheConfig := cache.ByObject{
Namespaces: map[string]cache.Config{"kube-system": {}},
Label: maintenanceSelector,
}
Comment on lines +184 to +195
cacheOptions := cache.Options{
ByObject: map[client.Object]cache.ByObject{
&appsv1.Deployment{}: maintenanceCacheConfig,
&policyv1.PodDisruptionBudget{}: maintenanceCacheConfig,
},
}
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fwiesel marked this conversation as resolved.
if global.LabelSelector != "" {
setupLog.Info("setting up cache with label selector", "selector", global.LabelSelector)
selector, err := labels.Parse(global.LabelSelector)
Expand All @@ -188,16 +207,8 @@ func main() {
os.Exit(1)
}

cacheOptions = cache.Options{
ByObject: map[client.Object]cache.ByObject{
&corev1.Node{}: {
Label: selector,
},
&kvmv1.Hypervisor{}: {
Label: selector,
},
},
}
cacheOptions.ByObject[&corev1.Node{}] = cache.ByObject{Label: selector}
cacheOptions.ByObject[&kvmv1.Hypervisor{}] = cache.ByObject{Label: selector}

h := sha256.New()
h.Write([]byte(leaderElectionID)) // Seed it with something "unique" to the project
Expand Down
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