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builder/amazon: Support assume role with assume_role_arn 

This supports assuming a role when using profile or static credentials.
This commit is contained in:
Rickard von Essen 2017-02-26 17:24:34 +01:00 committed by Matthew Hooker
parent 3833d34829
commit f55c3b9d34
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GPG Key ID: 7B5F933D9CE8C6A1
1 changed files with 8 additions and 3 deletions
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11
builder/amazon/common/access_config.go
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@ -5,6 +5,7 @@ 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/defaults"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"github.com/aws/aws-sdk-go/aws/session"
@ -14,12 +15,12 @@ import (
// AccessConfig is for common configuration related to AWS access
type AccessConfig struct {
AccessKey string `mapstructure:"access_key"`
SecretKey string `mapstructure:"secret_key"`
AssumeRoleArn string `mapstructure:"assume_role_arn"`
CustomEndpointEc2 string `mapstructure:"custom_endpoint_ec2"`
RawRegion string `mapstructure:"region"`
SecretKey string `mapstructure:"secret_key"`
SkipValidation bool `mapstructure:"skip_region_validation"`
Token string `mapstructure:"token"`
ProfileName string `mapstructure:"profile"`
CustomEndpointEc2 string `mapstructure:"custom_endpoint_ec2"`
}
// Config returns a valid aws.Config object for access to AWS services, or
@ -52,6 +53,10 @@ func (c *AccessConfig) Config() (*aws.Config, error) {
defaults.RemoteCredProvider(*(defaults.Config()), defaults.Handlers()),
})
if c.AssumeRoleArn != "" {
sess := session.Must(session.NewSession(config.WithCredentials(creds)))
creds = stscreds.NewCredentials(sess, c.AssumeRoleArn)
}
return config.WithCredentials(creds), nil
}