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125 lines
3.7 KiB
Go
125 lines
3.7 KiB
Go
package azure
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import (
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"github.com/edgelesssys/constellation/coordinator/cloudprovider/cloudtypes"
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"github.com/edgelesssys/constellation/coordinator/kubernetes/k8sapi/resources"
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"github.com/edgelesssys/constellation/internal/azureshared"
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k8s "k8s.io/api/core/v1"
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meta "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// Autoscaler holds the Azure cluster-autoscaler configuration.
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type Autoscaler struct{}
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// Name returns the cloud-provider name as used by k8s cluster-autoscaler.
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func (a *Autoscaler) Name() string {
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return "azure"
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}
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// Secrets returns a list of secrets to deploy together with the k8s cluster-autoscaler.
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func (a *Autoscaler) Secrets(instance cloudtypes.Instance, cloudServiceAccountURI string) (resources.Secrets, error) {
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subscriptionID, resourceGroup, err := extractBasicsFromProviderID(instance.ProviderID)
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if err != nil {
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return resources.Secrets{}, err
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}
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creds, err := azureshared.ApplicationCredentialsFromURI(cloudServiceAccountURI)
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if err != nil {
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return resources.Secrets{}, err
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}
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return resources.Secrets{
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&k8s.Secret{
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TypeMeta: meta.TypeMeta{
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Kind: "Secret",
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APIVersion: "v1",
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},
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ObjectMeta: meta.ObjectMeta{
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Name: "cluster-autoscaler-azure",
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Namespace: "kube-system",
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},
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Data: map[string][]byte{
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"ClientID": []byte(creds.ClientID),
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"ClientSecret": []byte(creds.ClientSecret),
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"ResourceGroup": []byte(resourceGroup),
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"SubscriptionID": []byte(subscriptionID),
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"TenantID": []byte(creds.TenantID),
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"VMType": []byte("vmss"),
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},
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},
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}, nil
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}
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// Volumes returns a list of volumes to deploy together with the k8s cluster-autoscaler.
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func (a *Autoscaler) Volumes() []k8s.Volume {
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return []k8s.Volume{}
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}
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// VolumeMounts returns a list of volume mounts to deploy together with the k8s cluster-autoscaler.
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func (a *Autoscaler) VolumeMounts() []k8s.VolumeMount {
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return []k8s.VolumeMount{}
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}
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// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cluster-autoscaler.
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func (a *Autoscaler) Env() []k8s.EnvVar {
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return []k8s.EnvVar{
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{
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Name: "ARM_SUBSCRIPTION_ID",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "SubscriptionID",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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{
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Name: "ARM_RESOURCE_GROUP",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "ResourceGroup",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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{
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Name: "ARM_TENANT_ID",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "TenantID",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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{
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Name: "ARM_CLIENT_ID",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "ClientID",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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{
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Name: "ARM_CLIENT_SECRET",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "ClientSecret",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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{
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Name: "ARM_VM_TYPE",
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ValueFrom: &k8s.EnvVarSource{
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SecretKeyRef: &k8s.SecretKeySelector{
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Key: "VMType",
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LocalObjectReference: k8s.LocalObjectReference{Name: "cluster-autoscaler-azure"},
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},
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},
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},
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}
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}
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// Supported is used to determine if we support autoscaling for the cloud provider.
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func (a *Autoscaler) Supported() bool {
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return true
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}
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