openstack-operator/builders/statefulset.go
okozachenko cd2aad7abd Add Rabbitmq
Change-Id: I9edabda696c341d86936e3ded06c5fd2e2cc94ed
2020-04-02 16:57:32 -07:00

77 lines
2.0 KiB
Go

package builders
import (
appsv1 "k8s.io/api/apps/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
)
// StatefulSetBuilder defines the interface to build a StatefulSet
type StatefulSetBuilder struct {
obj *appsv1.StatefulSet
podTemplateSpec *PodTemplateSpecBuilder
pvcs []*PersistentVolumeClaimBuilder
scheme *runtime.Scheme
labels map[string]string
owner metav1.Object
}
// StatefulSet returns a new StatefulSet builder
func StatefulSet(existing *appsv1.StatefulSet, owner metav1.Object, scheme *runtime.Scheme) *StatefulSetBuilder {
return &StatefulSetBuilder{
obj: existing,
labels: map[string]string{},
owner: owner,
scheme: scheme,
}
}
// Labels specifies labels for the StatefulSet
func (d *StatefulSetBuilder) Labels(labels map[string]string) *StatefulSetBuilder {
d.labels = labels
d.obj.ObjectMeta.Labels = d.labels
return d
}
// Replicas defines the number of replicas
func (d *StatefulSetBuilder) Replicas(replicas int32) *StatefulSetBuilder {
d.obj.Spec.Replicas = pointer.Int32Ptr(replicas)
return d
}
// PodTemplateSpec defines a builder for the pod template spec
func (d *StatefulSetBuilder) PodTemplateSpec(podTemplateSpec *PodTemplateSpecBuilder) *StatefulSetBuilder {
d.podTemplateSpec = podTemplateSpec
return d
}
// PVCs defines a builder array for the PVC spec
func (d *StatefulSetBuilder) PVCs(pvcs ...*PersistentVolumeClaimBuilder) *StatefulSetBuilder {
d.pvcs = pvcs
return d
}
// Build creates a final StatefulSet objet
func (d *StatefulSetBuilder) Build() error {
podTemplateSpec, err := d.podTemplateSpec.Labels(d.labels).Build()
if err != nil {
return err
}
d.obj.Spec.Template = podTemplateSpec
for _, c := range d.pvcs {
pvc, err := c.Build()
if err != nil {
return err
}
d.obj.Spec.VolumeClaimTemplates = append(d.obj.Spec.VolumeClaimTemplates, pvc)
}
return controllerutil.SetControllerReference(d.owner, d.obj, d.scheme)
}