open-vault/builtin/logical/aws/client.go
Jim Kalafut d0e2badbae Run goimports across the repository (#6010)
The result will still pass gofmtcheck and won't trigger additional
changes if someone isn't using goimports, but it will avoid the
piecemeal imports changes we've been seeing.
2019-01-08 16:48:57 -08:00

98 lines
2.5 KiB
Go

package aws
import (
"context"
"fmt"
"os"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/iam"
"github.com/aws/aws-sdk-go/service/sts"
"github.com/hashicorp/errwrap"
cleanhttp "github.com/hashicorp/go-cleanhttp"
"github.com/hashicorp/vault/helper/awsutil"
"github.com/hashicorp/vault/logical"
)
// NOTE: The caller is required to ensure that b.clientMutex is at least read locked
func getRootConfig(ctx context.Context, s logical.Storage, clientType string) (*aws.Config, error) {
credsConfig := &awsutil.CredentialsConfig{}
var endpoint string
var maxRetries int = aws.UseServiceDefaultRetries
entry, err := s.Get(ctx, "config/root")
if err != nil {
return nil, err
}
if entry != nil {
var config rootConfig
if err := entry.DecodeJSON(&config); err != nil {
return nil, errwrap.Wrapf("error reading root configuration: {{err}}", err)
}
credsConfig.AccessKey = config.AccessKey
credsConfig.SecretKey = config.SecretKey
credsConfig.Region = config.Region
maxRetries = config.MaxRetries
switch {
case clientType == "iam" && config.IAMEndpoint != "":
endpoint = *aws.String(config.IAMEndpoint)
case clientType == "sts" && config.STSEndpoint != "":
endpoint = *aws.String(config.STSEndpoint)
}
}
if credsConfig.Region == "" {
credsConfig.Region = os.Getenv("AWS_REGION")
if credsConfig.Region == "" {
credsConfig.Region = os.Getenv("AWS_DEFAULT_REGION")
if credsConfig.Region == "" {
credsConfig.Region = "us-east-1"
}
}
}
credsConfig.HTTPClient = cleanhttp.DefaultClient()
creds, err := credsConfig.GenerateCredentialChain()
if err != nil {
return nil, err
}
return &aws.Config{
Credentials: creds,
Region: aws.String(credsConfig.Region),
Endpoint: &endpoint,
HTTPClient: cleanhttp.DefaultClient(),
MaxRetries: aws.Int(maxRetries),
}, nil
}
func nonCachedClientIAM(ctx context.Context, s logical.Storage) (*iam.IAM, error) {
awsConfig, err := getRootConfig(ctx, s, "iam")
if err != nil {
return nil, err
}
client := iam.New(session.New(awsConfig))
if client == nil {
return nil, fmt.Errorf("could not obtain iam client")
}
return client, nil
}
func nonCachedClientSTS(ctx context.Context, s logical.Storage) (*sts.STS, error) {
awsConfig, err := getRootConfig(ctx, s, "sts")
if err != nil {
return nil, err
}
client := sts.New(session.New(awsConfig))
if client == nil {
return nil, fmt.Errorf("could not obtain sts client")
}
return client, nil
}