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main.go
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main.go
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package main
import (
"fmt"
"io/ioutil"
"os"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/secretsmanager"
)
func main() {
id := os.Getenv("SECRET_ID")
if id == "" {
fmt.Println("error: environment variable SECRET_ID is required")
os.Exit(-1)
}
file := os.Getenv("SECRET_FILE")
if file == "" {
fmt.Println("error: environment variable SECRET_FILE is required")
os.Exit(-1)
}
fmt.Println("fetching secret from secrets manager")
secret, err := getSecret(id)
if err != nil {
panic(fmt.Errorf("error while fetching secret from secrets manager"))
}
//write secret to file
fmt.Println("writing file")
err = ioutil.WriteFile(file, []byte(*secret.SecretString), 0644)
if err != nil {
panic(fmt.Errorf("error while writing file %s: %v", file, err))
}
fmt.Println("done")
}
func getSecret(id string) (*secretsmanager.GetSecretValueOutput, error) {
sess, err := session.NewSession()
if err != nil {
return nil, err
}
svc := secretsmanager.New(sess)
input := &secretsmanager.GetSecretValueInput{
SecretId: aws.String(id),
}
result, err := svc.GetSecretValue(input)
if err != nil {
panic(err)
}
return result, nil
}