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machinesets.go
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machinesets.go
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// Package aws generates Machine objects for aws.
package aws
import (
"fmt"
machineapi "github.com/openshift/cluster-api/pkg/apis/machine/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"github.com/openshift/installer/pkg/types"
"github.com/openshift/installer/pkg/types/aws"
"github.com/pkg/errors"
)
// MachineSets returns a list of machinesets for a machinepool.
func MachineSets(clusterID string, config *types.InstallConfig, pool *types.MachinePool, osImage, role, userDataSecret string) ([]*machineapi.MachineSet, error) {
if configPlatform := config.Platform.Name(); configPlatform != aws.Name {
return nil, fmt.Errorf("non-AWS configuration: %q", configPlatform)
}
if poolPlatform := pool.Platform.Name(); poolPlatform != aws.Name {
return nil, fmt.Errorf("non-AWS machine-pool: %q", poolPlatform)
}
platform := config.Platform.AWS
mpool := pool.Platform.AWS
azs := mpool.Zones
total := int64(0)
if pool.Replicas != nil {
total = *pool.Replicas
}
numOfAZs := int64(len(azs))
var machinesets []*machineapi.MachineSet
for idx, az := range azs {
replicas := int32(total / numOfAZs)
if int64(idx) < total%numOfAZs {
replicas++
}
provider, err := provider(clusterID, platform, mpool, osImage, idx, role, userDataSecret)
if err != nil {
return nil, errors.Wrap(err, "failed to create provider")
}
name := fmt.Sprintf("%s-%s-%s", clusterID, pool.Name, az)
mset := &machineapi.MachineSet{
TypeMeta: metav1.TypeMeta{
APIVersion: "machine.openshift.io/v1beta1",
Kind: "MachineSet",
},
ObjectMeta: metav1.ObjectMeta{
Namespace: "openshift-machine-api",
Name: name,
Labels: map[string]string{
"machine.openshift.io/cluster-api-cluster": clusterID,
"machine.openshift.io/cluster-api-machine-role": role,
"machine.openshift.io/cluster-api-machine-type": role,
},
},
Spec: machineapi.MachineSetSpec{
Replicas: &replicas,
Selector: metav1.LabelSelector{
MatchLabels: map[string]string{
"machine.openshift.io/cluster-api-machineset": name,
"machine.openshift.io/cluster-api-cluster": clusterID,
},
},
Template: machineapi.MachineTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
"machine.openshift.io/cluster-api-machineset": name,
"machine.openshift.io/cluster-api-cluster": clusterID,
"machine.openshift.io/cluster-api-machine-role": role,
"machine.openshift.io/cluster-api-machine-type": role,
},
},
Spec: machineapi.MachineSpec{
ProviderSpec: machineapi.ProviderSpec{
Value: &runtime.RawExtension{Object: provider},
},
// we don't need to set Versions, because we control those via cluster operators.
},
},
},
}
machinesets = append(machinesets, mset)
}
return machinesets, nil
}