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Setting CSI AWS topology label on machine deployment creation to allow scale-up #365

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merged 7 commits into from
Jun 28, 2021
Merged

Setting CSI AWS topology label on machine deployment creation to allow scale-up #365

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c344d8c
added csi driver label if not present and tests
himanshu-kun Jun 21, 2021
44de089
Update pkg/controller/worker/helper.go
himanshu-kun Jun 23, 2021
ab15506
checking if CSI enabled before adding csi label
himanshu-kun Jun 23, 2021
df1b320
used lambda fn to add aws csi label
himanshu-kun Jun 24, 2021
5231046
Update pkg/controller/worker/machines.go
himanshu-kun Jun 24, 2021
8d32318
Update pkg/controller/worker/machines.go
himanshu-kun Jun 24, 2021
9ae49f7
added test case
himanshu-kun Jun 28, 2021
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18 changes: 14 additions & 4 deletions pkg/controller/worker/machines.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ import (
awsapi "github.com/gardener/gardener-extension-provider-aws/pkg/apis/aws"
awsapihelper "github.com/gardener/gardener-extension-provider-aws/pkg/apis/aws/helper"
"github.com/gardener/gardener-extension-provider-aws/pkg/aws"

"github.com/gardener/gardener/extensions/pkg/controller/csimigration"
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"github.com/gardener/gardener/extensions/pkg/controller/worker"
genericworkeractuator "github.com/gardener/gardener/extensions/pkg/controller/worker/genericactuator"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
Expand Down Expand Up @@ -95,6 +95,11 @@ func (w *workerDelegate) generateMachineConfig() error {
return err
}

csiEnabled, _, err := csimigration.CheckCSIConditions(w.cluster, aws.GetCSIMigrationKubernetesVersion(w.cluster))
if err != nil {
return err
}

for _, pool := range w.worker.Spec.Pools {
zoneLen := int32(len(pool.Zones))

Expand Down Expand Up @@ -168,8 +173,9 @@ func (w *workerDelegate) generateMachineConfig() error {
}

var (
deploymentName = fmt.Sprintf("%s-%s-z%d", w.worker.Namespace, pool.Name, zoneIndex+1)
className = fmt.Sprintf("%s-%s", deploymentName, workerPoolHash)
deploymentName = fmt.Sprintf("%s-%s-z%d", w.worker.Namespace, pool.Name, zoneIndex+1)
className = fmt.Sprintf("%s-%s", deploymentName, workerPoolHash)
awsCSIDriverTopologyKey = "topology.ebs.csi.aws.com/zone"
)

machineDeployments = append(machineDeployments, worker.MachineDeployment{
Expand All @@ -185,7 +191,11 @@ func (w *workerDelegate) generateMachineConfig() error {
Taints: pool.Taints,
MachineConfiguration: genericworkeractuator.ReadMachineConfiguration(pool),
})

// TODO: remove when AWS CSI driver stops using the aws csi topology key - https://github.com/kubernetes-sigs/aws-ebs-csi-driver/issues/899
// add aws csi driver topology label if its not specified
if csiEnabled {
machineDeployments[len(machineDeployments)-1].Labels = utils.MergeStringMaps(pool.Labels, map[string]string{awsCSIDriverTopologyKey: zone})
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}
machineClassSpec["name"] = className
machineClassSpec["labels"] = map[string]string{corev1.LabelZoneFailureDomain: zone}
machineClassSpec["secret"].(map[string]interface{})["labels"] = map[string]string{v1beta1constants.GardenerPurpose: genericworkeractuator.GardenPurposeMachineClass}
Expand Down