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create.go
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create.go
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package iamidentitymapping
import (
"context"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws/arn"
"github.com/kris-nova/logger"
"github.com/pkg/errors"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
"github.com/weaveworks/eksctl/pkg/authconfigmap"
"github.com/weaveworks/eksctl/pkg/iam"
)
func (m *Manager) Create(ctx context.Context, mapping *api.IAMIdentityMapping) error {
acm, err := authconfigmap.NewFromClientSet(m.clientSet)
if err != nil {
return err
}
if mapping.ServiceName != "" {
parsedARN, err := arn.Parse(m.clusterConfig.Status.ARN)
if err != nil {
return errors.Wrap(err, "error parsing cluster ARN")
}
sa := authconfigmap.NewServiceAccess(m.rawClient, acm, parsedARN.AccountID)
return sa.Grant(mapping.ServiceName, mapping.Namespace, api.Partitions.ForRegion(m.region))
}
if mapping.Account == "" {
id, err := iam.NewIdentity(mapping.ARN, mapping.Username, mapping.Groups)
if err != nil {
return err
}
// Check whether role already exists.
identities, err := acm.GetIdentities()
if err != nil {
return err
}
createdArn := id.ARN() // The call to Valid above makes sure this cannot error
logger.Info("checking arn %s against entries in the auth ConfigMap", id.ARN())
for _, identity := range identities {
arn := identity.ARN()
if mapping.NoDuplicateARNs && iam.CompareIdentity(id, identity) {
logger.Warning("found existing mapping that matches the one being created, skipping.")
return nil
}
if createdArn == arn && mapping.NoDuplicateARNs {
return fmt.Errorf("found existing mapping with the same arn %q and shadowing is disabled", createdArn)
}
if createdArn == arn {
logger.Warning("found existing mappings with same arn %q (which will be shadowed by your new mapping)", createdArn)
break
}
}
if err := acm.AddIdentity(id); err != nil {
return err
}
} else {
if err := acm.AddAccount(mapping.Account); err != nil {
return err
}
}
return acm.Save()
}