// CredChain returns the default credential chain. // // Generally you shouldn't need to use this method directly, but // is available if you need to reset the credentials of an // existing service client or session's Config. func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials { endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName, *cfg.Region, true) return credentials.NewChainCredentials( []credentials.Provider{ &credentials.EnvProvider{}, &credentials.SharedCredentialsProvider{Filename: "", Profile: ""}, &ec2rolecreds.EC2RoleProvider{ Client: ec2metadata.NewClient(*cfg, handlers, endpoint, signingRegion), ExpiryWindow: 5 * time.Minute, }, }) }
"os" "time" "github.com/convox/rack/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws" "github.com/convox/rack/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials" "github.com/convox/rack/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds" ) // DefaultChainCredentials is a Credentials which will find the first available // credentials Value from the list of Providers. // // This should be used in the default case. Once the type of credentials are // known switching to the specific Credentials will be more efficient. var DefaultChainCredentials = credentials.NewChainCredentials( []credentials.Provider{ &credentials.EnvProvider{}, &credentials.SharedCredentialsProvider{Filename: "", Profile: ""}, &ec2rolecreds.EC2RoleProvider{ExpiryWindow: 5 * time.Minute}, }) // DefaultConfig is the default all service configuration will be based off of. // By default, all clients use this structure for initialization options unless // a custom configuration object is passed in. // // You may modify this global structure to change all default configuration // in the SDK. Note that configuration options are copied by value, so any // modifications must happen before constructing a client. var DefaultConfig = aws.NewConfig(). WithCredentials(DefaultChainCredentials). WithRegion(os.Getenv("AWS_REGION")). WithHTTPClient(http.DefaultClient). WithMaxRetries(aws.DefaultRetries).