ecr_list_images_go1.8_update.go

package main

import (
	"flag"
	"fmt"
	"log"
	"sort"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/session"
	"github.com/aws/aws-sdk-go/service/ecr"
	"github.com/nsd20463/numeralsort"
)

func GetSortedImageIds(region string, registryId string, repositoryName string) []*ecr.ImageIdentifier {

	ecrSvc := ecr.New(session.New(), &aws.Config{Region: aws.String(region)})

	done := false
	var imageIds []*ecr.ImageIdentifier
	params := &ecr.ListImagesInput{
		RepositoryName: aws.String(repositoryName),
		MaxResults:     aws.Int64(100),
		RegistryId:     aws.String(registryId),
	}
	for !done {
		resp, err := ecrSvc.ListImages(params)

		if err != nil {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			log.Println(err.Error())
			return nil
		}

		//fmt.Println(resp)
		for _, imageID := range resp.ImageIds {
			imageIds = append(imageIds, imageID)
		}
		if resp.NextToken == nil {
			done = true
		} else {
			params.NextToken = resp.NextToken
		}
	}
	sort.Slice(imageIds, func(i, j int) bool {
		//fmt.Println(*c[i].ImageTag, *c[j].ImageTag)
		if imageIds[i].ImageTag == nil {
			return true
		}
		if imageIds[j].ImageTag == nil {
			return false
		}
		//return strings.Compare(*imageIds[i].ImageTag, *imageIds[j].ImageTag) == -1
		return numeralsort.Less(*imageIds[i].ImageTag, *imageIds[j].ImageTag)
	})

	return imageIds

}

func main() {
	region := flag.String("region", "us-east-1", "AWS Region")
	accountID := flag.String("account", "", "Your AWS AccountID")
	repo := flag.String("repo", "", "The ECR Repo")
	flag.Parse()

	imageIds := GetSortedImageIds(*region, *accountID, *repo)
	for _, imageId := range imageIds {
		if imageId.ImageTag != nil {
			fmt.Println(*imageId.ImageTag, *imageId.ImageDigest)
		}

	}
}