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gcp.go
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gcp.go
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/*
Copyright 2022 The Crossplane Authors.
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 clients
import (
"context"
xpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
"github.com/crossplane/crossplane-runtime/pkg/resource"
"github.com/pkg/errors"
"github.com/upbound/upjet/pkg/terraform"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/upbound/provider-gcp/apis/v1beta1"
)
const (
keyProject = "project"
keyCredentials = "credentials"
credentialsSourceAccessToken = "AccessToken"
keyAccessToken = "access_token"
)
const (
// error messages
errNoProviderConfig = "no providerConfigRef provided"
errGetProviderConfig = "cannot get referenced ProviderConfig"
errTrackUsage = "cannot track ProviderConfig usage"
errExtractKeyCredentials = "cannot extract JSON key credentials"
errExtractTokenCredentials = "cannot extract Access Token credentials"
)
// TerraformSetupBuilder builds Terraform a terraform.SetupFn function which
// returns Terraform provider setup configuration
func TerraformSetupBuilder(version, providerSource, providerVersion string) terraform.SetupFn {
return func(ctx context.Context, client client.Client, mg resource.Managed) (terraform.Setup, error) {
ps := terraform.Setup{
Version: version,
Requirement: terraform.ProviderRequirement{
Source: providerSource,
Version: providerVersion,
},
}
configRef := mg.GetProviderConfigReference()
if configRef == nil {
return ps, errors.New(errNoProviderConfig)
}
pc := &v1beta1.ProviderConfig{}
if err := client.Get(ctx, types.NamespacedName{Name: configRef.Name}, pc); err != nil {
return ps, errors.Wrap(err, errGetProviderConfig)
}
t := resource.NewProviderConfigUsageTracker(client, &v1beta1.ProviderConfigUsage{})
if err := t.Track(ctx, mg); err != nil {
return ps, errors.Wrap(err, errTrackUsage)
}
// set provider configuration
ps.Configuration = map[string]interface{}{
keyProject: pc.Spec.ProjectID,
}
switch pc.Spec.Credentials.Source { //nolint:exhaustive
case xpv1.CredentialsSourceInjectedIdentity:
// We don't need to do anything here, as the TF Provider will take care of workloadIdentity etc.
case credentialsSourceAccessToken:
data, err := resource.CommonCredentialExtractor(ctx, xpv1.CredentialsSourceSecret, client, pc.Spec.Credentials.CommonCredentialSelectors)
if err != nil {
return ps, errors.Wrap(err, errExtractTokenCredentials)
}
ps.Configuration[keyAccessToken] = string(data)
default:
data, err := resource.CommonCredentialExtractor(ctx, pc.Spec.Credentials.Source, client, pc.Spec.Credentials.CommonCredentialSelectors)
if err != nil {
return ps, errors.Wrap(err, errExtractKeyCredentials)
}
ps.Configuration[keyCredentials] = string(data)
}
return ps, nil
}
}