Hello,
I am trying to make function which will down file fro aws s3 and do some
image resizing. I am having issue with os.Create, when I run locally on ec2
machine it works fine but when I run on lambda directly I get error file
not found
package main
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
_ "github.com/aws/aws-lambda-go/lambda"
_ "github.com/nfnt/resize"
_ "image/jpeg"
"fmt"
"os"
)
type MyEvent struct {
Name string `json:"name"`
}
func HandleRequest() (string, error) {
runResize("5bba5c0f01e2f_dcadcc7139454bf6dba4cbd01a7c92f8.jpeg")
return fmt.Sprintf("Hello"), nil
}
func main() {
// lambda.Start(HandleRequest)
runResize("5bba5c0f01e2f_dcadcc7139454bf6dba4cbd01a7c92f8.jpeg")
}
func runResize(item_name string) {
bucket := "bucket"
folder_name := "images/users/original/"
folder_name_220x220 := "images/users/220x220/"
folder_name_250x250 := "images/users/250x250/"
folder_name_500x500 := "images/users/500x500/"
folder_name_large := "images/users/large/"
createFolder(folder_name)
createFolder(folder_name_220x220)
createFolder(folder_name_250x250)
createFolder(folder_name_500x500)
createFolder(folder_name_large)
item := folder_name + item_name
fmt.Printf("Creating file %q \n", item)
file, err := os.Create(item)
if err != nil {
exitErrorf("Unable to open file %q", err)
}
defer file.Close()
sess, _ := session.NewSession(&aws.Config{
Region: aws.String("us-east-1")},
)
downloader := s3manager.NewDownloader(sess)
numBytes, err := downloader.Download(file,
&s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(item),
})
if err != nil {
exitErrorf("Unable to download item %q, %v", item, err)
}
fmt.Println("Processed", file.Name(), numBytes, "bytes")
}
func createFolder(folder_name string) {
if _, err := os.Stat(folder_name); os.IsNotExist(err) {
os.MkdirAll(folder_name, os.ModePerm)
fmt.Printf("Folder created %q \n", folder_name)
}
}
func exitErrorf(msg string, args ...interface{}) {
fmt.Fprintf(os.Stderr, msg+"\n", args...)
os.Exit(1)
}
Here how I build the code for deployment
GOOS=linux go build -v -ldflags '-d -s -w' -a -tags netgo -installsuffix
netgo -o resize && zip deployment.zip resize
and error I am getting
Unable to open file "open
images/users/original/5bba5c0f01e2f_dcadcc7139454bf6dba4cbd01a7c92f8.jpeg:
no such file or directory"
This error i thrown on create on in LAMBDA
Thanks
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