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/
create.go
68 lines (54 loc) · 1.95 KB
/
create.go
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package deployment
import (
"context"
"github.com/giantswarm/microerror"
v1 "k8s.io/api/apps/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
v12 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/giantswarm/kvm-operator/service/controller/key"
)
func (r *Resource) ApplyCreateChange(ctx context.Context, obj, createChange interface{}) error {
customResource, err := key.ToCustomObject(obj)
if err != nil {
return microerror.Mask(err)
}
deploymentsToCreate, err := toDeployments(createChange)
if err != nil {
return microerror.Mask(err)
}
if len(deploymentsToCreate) != 0 {
r.logger.Debugf(ctx, "creating the deployments in the Kubernetes API")
namespace := key.ClusterNamespace(customResource)
for _, deployment := range deploymentsToCreate {
_, err := r.k8sClient.AppsV1().Deployments(namespace).Create(ctx, deployment, v12.CreateOptions{})
if apierrors.IsAlreadyExists(err) {
// fall through
} else if err != nil {
return microerror.Mask(err)
}
}
r.logger.Debugf(ctx, "created the deployments in the Kubernetes API")
} else {
r.logger.Debugf(ctx, "the deployments do not need to be created in the Kubernetes API")
}
return nil
}
func (r *Resource) newCreateChange(ctx context.Context, obj, currentState, desiredState interface{}) (interface{}, error) {
currentDeployments, err := toDeployments(currentState)
if err != nil {
return nil, microerror.Mask(err)
}
desiredDeployments, err := toDeployments(desiredState)
if err != nil {
return nil, microerror.Mask(err)
}
r.logger.Debugf(ctx, "finding out which deployments have to be created")
var deploymentsToCreate []*v1.Deployment
for _, desiredDeployment := range desiredDeployments {
if !containsDeployment(currentDeployments, desiredDeployment) {
deploymentsToCreate = append(deploymentsToCreate, desiredDeployment)
}
}
r.logger.Debugf(ctx, "found %d deployments that have to be created", len(deploymentsToCreate))
return deploymentsToCreate, nil
}