feat: use default credentials for keyspaces

aws/keyspaces/keyspaces.go

@@ -2,10 +2,14 @@
 package keyspaces
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"os"
 
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sigv4-auth-cassandra-gocql-driver-plugin/sigv4"
 	"github.com/gocql/gocql"
 )
 
@@ -21,25 +25,28 @@ func New(certPath string) (Keyspaces, error) {
 
 	ksClient := Keyspaces{}
 
-	var region, service_username, service_password string
-	if region = os.Getenv("AWS_REGION"); region == "" {
-		return ksClient, errors.New("AWS_REGION is not set")
-	}
-	if service_username = os.Getenv("KEYSPACE_USER"); service_username == "" {
-		return ksClient, errors.New("KEYSPACE_USER is not set")
-	}
-	if service_password = os.Getenv("KEYSPACE_PW"); service_password == "" {
-		return ksClient, errors.New("KEYSPACE_PW is not set")
+	cfg, err := getConfig()
+	if err != nil {
+		return ksClient, err
 	}
 
+	region := cfg.Region
+
 	// Add the Amazon Keyspaces service endpoint
 	cluster := gocql.NewCluster(fmt.Sprintf("cassandra.%s.amazonaws.com:9142", region))
 
-	// Add your service specific credentials
-	cluster.Authenticator = gocql.PasswordAuthenticator{
-		Username: service_username,
-		Password: service_password,
+	// Get credentials from config (required for authentication to Keyspaces)
+	creds, err := cfg.Credentials.Retrieve(context.TODO())
+	if err != nil {
+		return ksClient, err
 	}
+	var auth sigv4.AwsAuthenticator = sigv4.NewAwsAuthenticator()
+	auth.Region = region
+	auth.AccessKeyId = creds.AccessKeyID
+	auth.SecretAccessKey = creds.SecretAccessKey
+	auth.SessionToken = creds.SessionToken
+	cluster.Authenticator = auth
+
 	// Provide the path to the certificate
 	cluster.SslOpts = &gocql.SslOptions{
 		CaPath: certPath,
@@ -63,3 +70,35 @@ func New(certPath string) (Keyspaces, error) {
 func (k *Keyspaces) QueryDatabase(query string, values []interface{}) gocql.Scanner {
 	return k.Session.Query(query, values...).Iter().Scanner()
 }
+
+// getConfig returns the default AWS Config struct.
+func getConfig() (aws.Config, error) {
+	if os.Getenv("AWS_REGION") == "" {
+		return aws.Config{}, errors.New("AWS_REGION is not set")
+	}
+
+	var cfg aws.Config
+	var err error
+
+	if awsEndpoint := os.Getenv("CUSTOM_AWS_ENDPOINT_URL"); awsEndpoint != "" {
+		customResolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) {
+			return aws.Endpoint{
+				PartitionID:       "aws",
+				URL:               awsEndpoint,
+				HostnameImmutable: true,
+			}, nil
+		})
+
+		cfg, err = config.LoadDefaultConfig(
+			context.TODO(),
+			config.WithEndpointResolverWithOptions(customResolver),
+		)
+	} else {
+		cfg, err = config.LoadDefaultConfig(context.TODO())
+	}
+
+	if err != nil {
+		return aws.Config{}, err
+	}
+	return cfg, nil
+}

go.mod

@@ -3,17 +3,19 @@ module github.com/GeoNet/kit
 go 1.16
 
 require (
-	github.com/aws/aws-sdk-go-v2 v1.16.2
+	github.com/aws/aws-sdk-go-v2 v1.22.2
 	github.com/aws/aws-sdk-go-v2/config v1.15.3
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.14.3 // indirect
 	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.11.5
 	github.com/aws/aws-sdk-go-v2/service/s3 v1.26.5
 	github.com/aws/aws-sdk-go-v2/service/sns v1.17.4
 	github.com/aws/aws-sdk-go-v2/service/sqs v1.18.3
-	github.com/aws/smithy-go v1.11.2
+	github.com/aws/aws-sigv4-auth-cassandra-gocql-driver-plugin v0.0.0-20220331165046-e4d000c0d6a6
+	github.com/aws/smithy-go v1.16.0
 	github.com/gocql/gocql v1.0.0
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/lib/pq v1.3.0
-	github.com/stretchr/testify v1.3.0
+	github.com/stretchr/testify v1.6.1
 	google.golang.org/protobuf v1.27.1
 )

go.sum

@@ -1,13 +1,15 @@
-github.com/aws/aws-sdk-go-v2 v1.16.2 h1:fqlCk6Iy3bnCumtrLz9r3mJ/2gUT0pJ0wLFVIdWh+JA=
 github.com/aws/aws-sdk-go-v2 v1.16.2/go.mod h1:ytwTPBG6fXTZLxxeeCCWj2/EMYp/xDUgX+OET6TLNNU=
+github.com/aws/aws-sdk-go-v2 v1.22.2 h1:lV0U8fnhAnPz8YcdmZVV60+tr6CakHzqA6P8T46ExJI=
+github.com/aws/aws-sdk-go-v2 v1.22.2/go.mod h1:Kd0OJtkW3Q0M0lUWGszapWjEvrXDzRW+D21JNsroB+c=
 github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1 h1:SdK4Ppk5IzLs64ZMvr6MrSficMtjY2oS0WOORXTlxwU=
 github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1/go.mod h1:n8Bs1ElDD2wJ9kCRTczA83gYbBmjSwZp3umc6zF4EeM=
 github.com/aws/aws-sdk-go-v2/config v1.15.3 h1:5AlQD0jhVXlGzwo+VORKiUuogkG7pQcLJNzIzK7eodw=
 github.com/aws/aws-sdk-go-v2/config v1.15.3/go.mod h1:9YL3v07Xc/ohTsxFXzan9ZpFpdTOFl4X65BAKYaz8jg=
 github.com/aws/aws-sdk-go-v2/credentials v1.11.2 h1:RQQ5fzclAKJyY5TvF+fkjJEwzK4hnxQCLOu5JXzDmQo=
 github.com/aws/aws-sdk-go-v2/credentials v1.11.2/go.mod h1:j8YsY9TXTm31k4eFhspiQicfXPLZ0gYXA50i4gxPE8g=
-github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.3 h1:LWPg5zjHV9oz/myQr4wMs0gi4CjnDN/ILmyZUFYXZsU=
 github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.3/go.mod h1:uk1vhHHERfSVCUnqSqz8O48LBYDSC+k6brng09jcMOk=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.14.3 h1:G5KawTAkyHH6WyKQCdHiW4h3PmAXNJpOgwKg3H7sDRE=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.14.3/go.mod h1:hugKmSFnZB+HgNI1sYGT14BUPZkO6alC/e0AWu+0IAQ=
 github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.11.5 h1:lPo/NX1o4vkk2C7mHmB2FCf9Qp7KZNHrlzHxdP/yugw=
 github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.11.5/go.mod h1:JNo9mEKrjnmDBc19z65TZmj1xG9PQHu2GOlApYk31DU=
 github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.9 h1:onz/VaaxZ7Z4V+WIN9Txly9XLTmoOh1oJ8XcAC3pako=
@@ -36,26 +38,32 @@ github.com/aws/aws-sdk-go-v2/service/sso v1.11.3 h1:frW4ikGcxfAEDfmQqWgMLp+F1n4n
 github.com/aws/aws-sdk-go-v2/service/sso v1.11.3/go.mod h1:7UQ/e69kU7LDPtY40OyoHYgRmgfGM4mgsLYtcObdveU=
 github.com/aws/aws-sdk-go-v2/service/sts v1.16.3 h1:cJGRyzCSVwZC7zZZ1xbx9m32UnrKydRYhOvcD1NYP9Q=
 github.com/aws/aws-sdk-go-v2/service/sts v1.16.3/go.mod h1:bfBj0iVmsUyUg4weDB4NxktD9rDGeKSVWnjTnwbx9b8=
-github.com/aws/smithy-go v1.11.2 h1:eG/N+CcUMAvsdffgMvjMKwfyDzIkjM6pfxMJ8Mzc6mE=
+github.com/aws/aws-sigv4-auth-cassandra-gocql-driver-plugin v0.0.0-20220331165046-e4d000c0d6a6 h1:+AQtpMAj/wOpgdmXSGKSBVozGsYbvaf73gTz4aSK9vM=
+github.com/aws/aws-sigv4-auth-cassandra-gocql-driver-plugin v0.0.0-20220331165046-e4d000c0d6a6/go.mod h1:Y5LTHeZGpeKFaXYfPYNfVqdpAjejlvXLhGqFqSJRQYc=
 github.com/aws/smithy-go v1.11.2/go.mod h1:3xHYmszWVx2c0kIwQeEVf9uSm4fYZt67FBJnwub1bgM=
+github.com/aws/smithy-go v1.16.0 h1:gJZEH/Fqh+RsvlJ1Zt4tVAtV6bKkp3cC+R6FCZMNzik=
+github.com/aws/smithy-go v1.16.0/go.mod h1:NukqUGpCZIILqqiV0NIjeFh24kd/FAa4beRb6nbIUPE=
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@@ -72,16 +80,19 @@ github.com/lib/pq v1.3.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
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-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
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