Working initial version from EC2 metadata

Author: marcwickenden

go.mod

@@ -1,3 +1,5 @@
 module github.com/4armed/metacreds
 
 go 1.14
+
+require github.com/aws/aws-sdk-go v1.31.13 // indirect

go.sum

@@ -0,0 +1,16 @@
+github.com/aws/aws-sdk-go v1.31.13 h1:UeWMTRTL0XAKLR7vxDL4/u7KOtz/LtfJr+lXtxN4YEQ=
+github.com/aws/aws-sdk-go v1.31.13/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/jmespath/go-jmespath v0.3.0 h1:OS12ieG61fsCg5+qLJ+SsW9NicxNkg3b25OyT2yCeUc=
+github.com/jmespath/go-jmespath v0.3.0/go.mod h1:9QtRXoHjLGCJ5IBSaohpXITPlowMeeYCZ7fLUTSywik=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

metacreds.go

@@ -3,19 +3,22 @@ package main
 import (
 	"fmt"
 
-	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
+	"github.com/aws/aws-sdk-go/aws/ec2metadata"
+	"github.com/aws/aws-sdk-go/aws/session"
 )
 
 func main() {
-	creds := credentials.NewCredentials(&ec2rolecreds.EC2RoleProvider{})
+	p := &ec2rolecreds.EC2RoleProvider{
+		Client: ec2metadata.New(session.New()),
+	}
 
-	// Retrieve the credentials value
-	credValue, err := creds.Get()
+	creds, err := p.Retrieve()
 	if err != nil {
-		fmt.Printf(`Could not retrieve creds: %v`, err)
-		return
+		fmt.Printf("Retrieve creds error: %v", err)
 	}
 
-	fmt.Printf(`credValue: %v`, credValue)
+	fmt.Printf("export AWS_ACCESS_KEY_ID=%v", creds.AccessKeyID)
+	fmt.Printf("export AWS_SECRET_ACCESS_KEY=%v", creds.SecretAccessKey)
+	fmt.Printf("export AWS_SESSION_TOKEN=%v", creds.SessionToken)
 }