add aws apis

module/apis/aws/aws.go

@@ -0,0 +1,46 @@
+package aws
+
+import (
+	"errors"
+
+	"git.trj.tw/golang/go-ddns-svc/module/config"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/route53"
+)
+
+// AWSClient -
+type AWSClient struct {
+	Session  *session.Session
+	Config   *aws.Config
+	Services struct {
+		R53 *route53.Route53
+	}
+}
+
+var client *AWSClient
+
+// NewAWS -
+func NewAWS() error {
+	conf := config.GetConfig()
+	awsConf := &aws.Config{}
+	awsConf.Region = aws.String("us-east-1")
+	var sess *session.Session
+
+	if conf.AWS.SharedConfig {
+		if len(conf.AWS.SharedName) == 0 {
+			return errors.New("aws shared config name empty")
+		}
+		awsConf.Credentials = credentials.NewSharedCredentials("", conf.AWS.SharedName)
+	} else {
+		awsConf.Credentials = credentials.NewStaticCredentials(conf.AWS.AccessKey, conf.AWS.SecretKey, "")
+	}
+	sess = session.New(awsConf)
+
+	client = &AWSClient{}
+	client.Session = sess
+	client.Config = awsConf
+
+	return nil
+}

module/config/config.go

@@ -16,6 +16,7 @@ type Config struct {
 	Port int `yaml:"port"`
 	AWS  struct {
 		SharedConfig bool   `yaml:"shared_config"`
+		SharedName   string `yaml:"shared_name"`
 		AccessKey    string `yaml:"access_key"`
 		SecretKey    string `yaml:"secret_key"`
 	} `yaml:"aws"`
@@ -50,7 +51,7 @@ func LoadConfig(p ...string) (err error) {
 	if err != nil {
 		return err
 	}
-  envOverride()
+	envOverride()
 
 	return
 }
@@ -76,6 +77,11 @@ func envOverride() {
 		}
 	}
 
+	str = os.Getenv("AWS_SHARED_NAME")
+	if len(str) > 0 {
+		conf.AWS.SharedName = str
+	}
+
 	// set aws access key
 	str = os.Getenv("AWS_ACCESS_KEY")
 	if len(str) > 0 {