generated from giantswarm/template-operator
/
app.go
169 lines (141 loc) · 4.12 KB
/
app.go
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package encryption
import (
"context"
"fmt"
chartv1 "github.com/giantswarm/apiextensions-application/api/v1alpha1"
"github.com/giantswarm/k8smetadata/pkg/annotation"
"github.com/giantswarm/k8smetadata/pkg/label"
"github.com/giantswarm/microerror"
"gopkg.in/yaml.v2"
v1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
ctrlclient "sigs.k8s.io/controller-runtime/pkg/client"
"github.com/giantswarm/encryption-provider-operator/pkg/project"
)
const (
configMapName = "encryption-config-hasher-chart-values"
chartNamespace = "giantswarm"
appName = "encryption-config-hasher"
appNamespace = "kube-system"
encryptionConfigHasherVersion = "0.1.2"
)
func chartURL(appCatalog string) string {
return fmt.Sprintf("https://giantswarm.github.io/%s/encryption-config-hasher-%s.tgz", appCatalog, encryptionConfigHasherVersion)
}
func (s *Service) deployEncryptionProviderHasherApp(ctx context.Context, wcClient ctrlclient.Client) error {
cm := buildConfigMapValues(s.registryDomain)
err := wcClient.Create(ctx, cm)
if apierrors.IsAlreadyExists(err) {
// update chart of it already exists
err = wcClient.Get(ctx, ctrlclient.ObjectKey{Name: cm.Name, Namespace: cm.Namespace}, cm)
if err != nil {
return microerror.Mask(err)
}
cm.Data = configMapData(s.registryDomain)
err = wcClient.Update(ctx, cm)
if err != nil {
return microerror.Mask(err)
}
} else if err != nil {
return microerror.Mask(err)
}
chart := buildAppChart(s.appCatalog)
err = wcClient.Create(ctx, chart)
if apierrors.IsAlreadyExists(err) {
// update chart of it already exists
err = wcClient.Get(ctx, ctrlclient.ObjectKey{Name: chart.Name, Namespace: chart.Namespace}, chart)
if err != nil {
return microerror.Mask(err)
}
chart.Spec = chartSpec(s.appCatalog)
err = wcClient.Update(ctx, chart)
if err != nil {
return microerror.Mask(err)
} else {
s.logger.Info(fmt.Sprintf("updated '%s' app in workload cluster", chart.Name))
}
} else if err != nil {
return microerror.Mask(err)
} else {
s.logger.Info(fmt.Sprintf("deployed '%s' app to workload cluster", chart.Name))
}
return nil
}
func (s *Service) deleteEncryptionProviderHasherApp(ctx context.Context, wcClient ctrlclient.Client) error {
cm := buildConfigMapValues(s.registryDomain)
err := wcClient.Delete(ctx, cm)
if apierrors.IsNotFound(err) {
// fall through
} else if err != nil {
return microerror.Mask(err)
}
chart := buildAppChart(s.appCatalog)
err = wcClient.Delete(ctx, chart)
if apierrors.IsNotFound(err) {
// fall through
} else if err != nil {
return microerror.Mask(err)
}
return nil
}
type Values struct {
Registry Registry `yaml:"registry"`
}
type Registry struct {
Domain string `yaml:"domain"`
}
func buildConfigMapValues(registryDomain string) *v1.ConfigMap {
cm := &v1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: configMapName,
Namespace: chartNamespace,
Labels: map[string]string{
label.AppKubernetesName: "encryption-config-hasher",
},
},
Data: configMapData(registryDomain),
}
return cm
}
func configMapData(registryDomain string) map[string]string {
val := Values{
Registry: Registry{
Domain: registryDomain,
},
}
values, _ := yaml.Marshal(&val)
return map[string]string{"values": string(values)}
}
func buildAppChart(appCatalog string) *chartv1.Chart {
c := &chartv1.Chart{
ObjectMeta: metav1.ObjectMeta{
Name: appName,
Namespace: chartNamespace,
Labels: map[string]string{
label.AppKubernetesName: appName,
label.ManagedBy: project.Name(),
label.ChartOperatorVersion: "1.0.0",
},
Annotations: map[string]string{
annotation.ChartOperatorForceHelmUpgrade: "true",
},
},
Spec: chartSpec(appCatalog),
}
return c
}
func chartSpec(appCatalog string) chartv1.ChartSpec {
return chartv1.ChartSpec{
Name: appName,
Namespace: appNamespace,
Config: chartv1.ChartSpecConfig{
ConfigMap: chartv1.ChartSpecConfigConfigMap{
Name: configMapName,
Namespace: chartNamespace,
},
},
TarballURL: chartURL(appCatalog),
Version: encryptionConfigHasherVersion,
}
}