cc5d82883c
This builder pattern refactors things so that we can use the same code to generate manifests/etc. This means that if we make sure that we exclusively use those, we can do testing there and keep something common. Change-Id: Ibc39f9b9e3e21b18fb255ba2a67d2d8ba3b5c585
60 lines
1.7 KiB
Go
Executable File
60 lines
1.7 KiB
Go
Executable File
package builders
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import (
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appsv1 "k8s.io/api/apps/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/utils/pointer"
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"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
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)
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// DeploymentBuilder defines the interface to build a deployment
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type DeploymentBuilder struct {
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obj *appsv1.Deployment
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podTemplateSpec *PodTemplateSpecBuilder
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owner metav1.Object
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scheme *runtime.Scheme
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labels map[string]string
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}
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// Deployment returns a new deployment builder
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func Deployment(existing *appsv1.Deployment, owner metav1.Object, scheme *runtime.Scheme) *DeploymentBuilder {
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return &DeploymentBuilder{
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obj: existing,
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labels: map[string]string{},
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owner: owner,
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scheme: scheme,
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}
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}
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// Labels specifies labels for the deployment
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func (d *DeploymentBuilder) Labels(labels map[string]string) *DeploymentBuilder {
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d.labels = labels
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d.obj.ObjectMeta.Labels = d.labels
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d.obj.Spec.Selector = &metav1.LabelSelector{MatchLabels: d.labels}
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return d
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}
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// Replicas defines the number of replicas
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func (d *DeploymentBuilder) Replicas(replicas int32) *DeploymentBuilder {
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d.obj.Spec.Replicas = pointer.Int32Ptr(replicas)
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return d
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}
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// PodTemplateSpec defines a builder for the pod template spec
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func (d *DeploymentBuilder) PodTemplateSpec(podTemplateSpec *PodTemplateSpecBuilder) *DeploymentBuilder {
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d.podTemplateSpec = podTemplateSpec
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return d
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}
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// Build creates a final deployment objet
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func (d *DeploymentBuilder) Build() error {
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podTemplateSpec, err := d.podTemplateSpec.Labels(d.labels).Build()
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if err != nil {
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return err
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}
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d.obj.Spec.Template = podTemplateSpec
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return controllerutil.SetControllerReference(d.owner, d.obj, d.scheme)
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}
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