/
controller.go
56 lines (46 loc) · 1.64 KB
/
controller.go
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package configmap
import (
"fmt"
apiv1 "k8s.io/api/core/v1"
k8sErrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/client-go/kubernetes"
corelisters "k8s.io/client-go/listers/core/v1"
"k8s.io/client-go/tools/record"
v1alpha1 "github.com/jetstack/navigator/pkg/apis/navigator/v1alpha1"
)
type Interface interface {
Sync(*v1alpha1.ElasticsearchCluster) (v1alpha1.ElasticsearchClusterStatus, error)
}
type defaultElasticsearchClusterConfigMapControl struct {
kubeClient kubernetes.Interface
configMapLister corelisters.ConfigMapLister
recorder record.EventRecorder
}
var _ Interface = &defaultElasticsearchClusterConfigMapControl{}
func NewController(
kubeClient kubernetes.Interface,
configMapLister corelisters.ConfigMapLister,
recorder record.EventRecorder,
) Interface {
return &defaultElasticsearchClusterConfigMapControl{
kubeClient: kubeClient,
configMapLister: configMapLister,
recorder: recorder,
}
}
func (e *defaultElasticsearchClusterConfigMapControl) Sync(c *v1alpha1.ElasticsearchCluster) (v1alpha1.ElasticsearchClusterStatus, error) {
for _, np := range c.Spec.NodePools {
if err := e.ensureConfigMap(esConfigConfigMap(c, &np)); err != nil {
return c.Status, fmt.Errorf("error ensuring %q/%q nodepool configmap: %s", c.Name, np.Name, err.Error())
}
}
return c.Status, nil
}
func (e *defaultElasticsearchClusterConfigMapControl) ensureConfigMap(configMap *apiv1.ConfigMap) error {
_, err := e.configMapLister.ConfigMaps(configMap.Namespace).Get(configMap.Name)
if k8sErrors.IsNotFound(err) {
_, err := e.kubeClient.CoreV1().ConfigMaps(configMap.Namespace).Create(configMap)
return err
}
return err
}