/
terraform.go
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/
terraform.go
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// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal
import (
"time"
"github.com/gardener/gardener/extensions/pkg/terraformer"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/go-logr/logr"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/rest"
"github.com/gardener/gardener-extension-provider-azure/pkg/azure"
"github.com/gardener/gardener-extension-provider-azure/pkg/internal/imagevector"
)
const (
// TerraformVarSubscriptionID is the name of the terraform subscription id environment variable.
TerraformVarSubscriptionID = "TF_VAR_SUBSCRIPTION_ID"
// TerraformVarTenantID is the name of the terraform tenant id environment variable.
TerraformVarTenantID = "TF_VAR_TENANT_ID"
// TerraformVarClientID is the name of the terraform client id environment variable.
TerraformVarClientID = "TF_VAR_CLIENT_ID"
// TerraformVarClientSecret is the name of the client secret environment variable.
TerraformVarClientSecret = "TF_VAR_CLIENT_SECRET"
)
// TerraformerEnvVars computes the Terraformer environment variables from the given secret reference.
func TerraformerEnvVars(secretRef corev1.SecretReference) []corev1.EnvVar {
return []corev1.EnvVar{{
Name: TerraformVarSubscriptionID,
ValueFrom: &corev1.EnvVarSource{SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: secretRef.Name,
},
Key: azure.SubscriptionIDKey,
}},
}, {
Name: TerraformVarTenantID,
ValueFrom: &corev1.EnvVarSource{SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: secretRef.Name,
},
Key: azure.TenantIDKey,
}},
}, {
Name: TerraformVarClientID,
ValueFrom: &corev1.EnvVarSource{SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: secretRef.Name,
},
Key: azure.ClientIDKey,
}},
}, {
Name: TerraformVarClientSecret,
ValueFrom: &corev1.EnvVarSource{SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: secretRef.Name,
},
Key: azure.ClientSecretKey,
}},
}}
}
var (
// NewTerraformer initializes a new Terraformer. Exposed for testing
NewTerraformer = defaultNewTerraformer
// NewTerraformerWithAuth initializes a new Terraformer that has the azure auth credentials. Exposed for testing
NewTerraformerWithAuth = defaultNewTerraformerWithAuth
)
func defaultNewTerraformer(
logger logr.Logger,
restConfig *rest.Config,
purpose string,
infra *extensionsv1alpha1.Infrastructure,
disableProjectedTokenMount bool,
) (
terraformer.Terraformer,
error,
) {
tf, err := terraformer.NewForConfig(logger, restConfig, purpose, infra.Namespace, infra.Name, imagevector.TerraformerImage())
if err != nil {
return nil, err
}
owner := metav1.NewControllerRef(infra, extensionsv1alpha1.SchemeGroupVersion.WithKind(extensionsv1alpha1.InfrastructureResource))
return tf.
UseProjectedTokenMount(!disableProjectedTokenMount).
SetTerminationGracePeriodSeconds(630).
SetDeadlineCleaning(5 * time.Minute).
SetDeadlinePod(15 * time.Minute).
SetOwnerRef(owner), nil
}
func defaultNewTerraformerWithAuth(
logger logr.Logger,
restConfig *rest.Config,
purpose string,
infra *extensionsv1alpha1.Infrastructure,
disableProjectedTokenMount bool,
) (
terraformer.Terraformer,
error,
) {
tf, err := NewTerraformer(logger, restConfig, purpose, infra, disableProjectedTokenMount)
if err != nil {
return nil, err
}
return tf.SetEnvVars(TerraformerEnvVars(infra.Spec.SecretRef)...), nil
}