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awslib.go
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awslib.go
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package awssecret
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/secretsmanager"
"github.com/aws/aws-sdk-go/service/sts"
)
type secretsManagerClient interface {
GetSecretValueWithContext(aws.Context, *secretsmanager.GetSecretValueInput, ...request.Option) (*secretsmanager.GetSecretValueOutput, error)
}
func readARN(ctx context.Context, sm secretsManagerClient, arn string) (string, error) {
resp, err := sm.GetSecretValueWithContext(ctx, &secretsmanager.GetSecretValueInput{
SecretId: aws.String(arn),
})
if err != nil { // resp is now filled
return "", err
}
if resp == nil || resp.SecretString == nil {
return "", fmt.Errorf("response or SecretString is nil")
}
return *resp.SecretString, nil
}
func newSecretsManagerClient(config *Config, region string) (secretsManagerClient, error) {
awsConfig := &aws.Config{
Region: aws.String(region),
}
if config.SecretAccessKey != "" && config.AccessKeyID != "" {
awsConfig.Credentials = credentials.NewStaticCredentials(config.AccessKeyID, config.SecretAccessKey, config.SecurityToken)
}
// Optional: Assuming role
if config.AssumeRoleARN != "" {
staticsess, err := session.NewSession(&aws.Config{Credentials: awsConfig.Credentials})
if err != nil {
return nil, err
}
awsConfig.Credentials = credentials.NewCredentials(&stscreds.AssumeRoleProvider{
Client: sts.New(staticsess),
RoleARN: config.AssumeRoleARN,
Duration: 15 * time.Minute,
})
}
awsSession, err := session.NewSession(awsConfig)
if err != nil {
return nil, err
}
return secretsmanager.New(awsSession), nil
}