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added assume role to sqs adapter #262

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added assume role to sqs adapter #262

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38 changes: 38 additions & 0 deletions sqs/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,10 @@ import (

"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/session"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/aws/aws-sdk-go/service/sts"

"github.com/refractionPOINT/go-uspclient"
"github.com/refractionPOINT/go-uspclient/protocol"
Expand Down Expand Up @@ -37,6 +39,8 @@ type SQSConfig struct {
SecretKey string `json:"secret_key,omitempty" yaml:"secret_key,omitempty"`
QueueURL string `json:"queue_url" yaml:"queue_url"`
Region string `json:"region" yaml:"region"`
RoleArn string `json:"role_arn,omitempty" yaml:"role_arn,omitempty"`
ExternalId string `json:"external_id,omitempty" yaml:"external_id,omitempty"`
}

func (c *SQSConfig) Validate() error {
Expand Down Expand Up @@ -74,6 +78,18 @@ func NewSQSAdapter(ctx context.Context, conf SQSConfig) (*SQSAdapter, chan struc
return nil, nil, err
}

// If RoleArn is provided, assume the role
if conf.RoleArn != "" {
creds, err := a.assumeRole(conf.RoleArn, conf.ExternalId)
if err != nil {
return nil, nil, fmt.Errorf("failed to assume role: %v", err)
}
a.awsConfig.Credentials = creds
if a.awsSession, err = session.NewSession(a.awsConfig); err != nil {
return nil, nil, err
}
}

a.sqsClient = sqs.New(a.awsSession)

a.uspClient, err = uspclient.NewClient(ctx, conf.ClientOptions)
Expand Down Expand Up @@ -107,6 +123,28 @@ func (a *SQSAdapter) Close() error {
return nil
}

func (a *SQSAdapter) assumeRole(roleArn, externalId string) (*credentials.Credentials, error) {
// Create STS client with base credentials
stsClient := sts.New(a.awsSession)

// Build assume role input
assumeRoleInput := &sts.AssumeRoleInput{
RoleArn: aws.String(roleArn),
RoleSessionName: aws.String(fmt.Sprintf("sqs-adapter-%d", time.Now().Unix())),
}

// Add external ID if provided (required for cross-account access)
if externalId != "" {
assumeRoleInput.ExternalId = aws.String(externalId)
}

// Return credentials that will automatically refresh
return stscreds.NewCredentialsWithClient(stsClient, roleArn, func(p *stscreds.AssumeRoleProvider) {
p.ExternalID = assumeRoleInput.ExternalId
p.RoleSessionName = *assumeRoleInput.RoleSessionName
}), nil
}

func (a *SQSAdapter) receiveEvents() error {
for !a.isStop {
result, err := a.sqsClient.ReceiveMessage(&sqs.ReceiveMessageInput{
Expand Down