Add v1.9.1 kaniko image support

.drone.yml

@@ -1,17 +1,10 @@
 kind: pipeline
-type: vm
+type: docker
 name: default
 
-pool:
-  use: ubuntu
-
-platform:
-  os: linux
-  arch: amd64
-
 steps:
 - name: build
-  image: golang:1.21
+  image: golang:1.18
   commands:
   - go test ./...
   - sh scripts/build.sh
@@ -50,23 +43,6 @@ steps:
       exclude:
       - pull_request
 
-- name: gar
-  image: plugins/docker
-  settings:
-    repo: plugins/kaniko-gar
-    auto_tag: true
-    auto_tag_suffix: linux-amd64
-    daemon_off: false
-    dockerfile: docker/gar/Dockerfile.linux.amd64
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-  when:
-    event:
-      exclude:
-        - pull_request
-
 - name: ecr
   image: plugins/docker
   settings:
@@ -135,22 +111,6 @@ steps:
       exclude:
       - pull_request
 
-- name: gar-kaniko-v1-9
-  image: plugins/docker
-  settings:
-    repo: plugins/kaniko-gar
-    auto_tag: true
-    auto_tag_suffix: linux-amd64-kaniko1.9.1
-    daemon_off: false
-    dockerfile: docker/gar/Dockerfile.linux.amd64.kaniko1.9.1
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-  when:
-    event:
-      exclude:
-        - pull_request
 
 - name: ecr-kaniko-v1-9
   image: plugins/docker
@@ -170,15 +130,16 @@ steps:
       - pull_request
 ---
 kind: pipeline
-type: vm
+type: docker
 name: arm
 
-pool:
+platform:
-  use: ubuntu_arm64
+  os: linux
+  arch: arm64
 
 steps:
 - name: build
-  image: golang:1.21
+  image: golang:1.18
   commands:
   - go test ./...
   - sh scripts/build.sh
@@ -217,23 +178,6 @@ steps:
       exclude:
       - pull_request
 
-- name: gar
-  image: plugins/docker
-  settings:
-    repo: plugins/kaniko-gar
-    auto_tag: true
-    auto_tag_suffix: linux-arm64
-    daemon_off: false
-    dockerfile: docker/gar/Dockerfile.linux.arm64
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-  when:
-    event:
-      exclude:
-        - pull_request
-
 - name: ecr
   image: plugins/docker
   settings:
@@ -302,22 +246,6 @@ steps:
       exclude:
       - pull_request
 
-- name: gar-kaniko-v1-9
-  image: plugins/docker
-  settings:
-    repo: plugins/kaniko-gar
-    auto_tag: true
-    auto_tag_suffix: linux-arm64-kaniko1.9.1
-    daemon_off: false
-    dockerfile: docker/gar/Dockerfile.linux.arm64.kaniko1.9.1
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-  when:
-    event:
-      exclude:
-        - pull_request
 
 - name: ecr-kaniko-v1-9
   image: plugins/docker
@@ -337,12 +265,9 @@ steps:
       - pull_request
 ---
 kind: pipeline
-type: vm
+type: docker
 name: notifications-docker
 
-pool:
-  use: ubuntu
-
 platform:
   os: linux
   arch: amd64
@@ -372,18 +297,6 @@ steps:
     username:
       from_secret: docker_username
 
-- name: manifest-gar
-  pull: always
-  image: plugins/manifest
-  settings:
-    auto_tag: true
-    ignore_missing: true
-    password:
-      from_secret: docker_password
-    spec: docker/gar/manifest.tmpl
-    username:
-      from_secret: docker_username
-
 - name: manifest-acr
   pull: always
   image: plugins/manifest
@@ -419,12 +332,9 @@ depends_on:
 
 ---
 kind: pipeline
-type: vm
+type: docker
 name: notifications-docker-kaniko1-8
 
-pool:
-  use: ubuntu
-
 platform:
   os: linux
   arch: amd64
@@ -454,18 +364,6 @@ steps:
     username:
       from_secret: docker_username
 
-- name: manifest-gar
-  pull: always
-  image: plugins/manifest
-  settings:
-    auto_tag: false
-    ignore_missing: true
-    password:
-      from_secret: docker_password
-    spec: docker/gar/manifest-kaniko1.9.1.tmpl
-    username:
-      from_secret: docker_username
-
 - name: manifest-ecr
   pull: always
   image: plugins/manifest

cmd/kaniko-acr/main.go

@@ -432,15 +432,6 @@ func getPublicUrl(token, registryUrl, subscriptionId string) (string, error) {
 	if err != nil {
 		return "", errors.Wrap(err, "failed to send request for getting container registry setting")
 	}
-
-	if len(response.Value) == 0 {
-		return "", errors.New("did not receive any registry information from /subscriptions API")
-	}
-
-	if response.Value[0].ID == "" {
-		return "", errors.New("received empty registry ID from /subscriptions API")
-	}
-
 	return finalUrl + encodeParam(response.Value[0].ID), nil
 }
 

cmd/kaniko-docker/main.go

@@ -176,11 +176,6 @@ func main() {
 			Usage:  "Set this flag if you only want to build the image, without pushing to a registry",
 			EnvVar: "PLUGIN_NO_PUSH",
 		},
-		cli.StringFlag{
-			Name:   "tar-path",
-			Usage:  "Set this flag to save the image as a tarball at path",
-			EnvVar: "PLUGIN_TAR_PATH",
-		},
 		cli.StringFlag{
 			Name:   "verbosity",
 			Usage:  "Set this flag with value as oneof <panic|fatal|error|warn|info|debug|trace> to set the logging level for kaniko. Defaults to info.",
@@ -196,11 +191,6 @@ func main() {
 			Usage:  "build only used stages",
 			EnvVar: "PLUGIN_SKIP_UNUSED_STAGES",
 		},
-		cli.StringFlag{
-			Name:   "output-file",
-			Usage:  "Output file location that will be generated by the plugin. This file will include information of the output that are exported by the plugin.",
-			EnvVar: "DRONE_OUTPUT",
-		},
 	}
 
 	if err := app.Run(os.Args); err != nil {
@@ -247,7 +237,6 @@ func run(c *cli.Context) error {
 			CacheTTL:         c.Int("cache-ttl"),
 			DigestFile:       defaultDigestFile,
 			NoPush:           noPush,
-			TarPath:          c.String("tar-path"),
 			Verbosity:        c.String("verbosity"),
 			Platform:         c.String("platform"),
 			SkipUnusedStages: c.Bool("skip-unused-stages"),
@@ -259,9 +248,6 @@ func run(c *cli.Context) error {
 			ArtifactFile: c.String("artifact-file"),
 			RegistryType: artifact.Docker,
 		},
-		Output: kaniko.Output{
-			OutputFile: c.String("output-file"),
-		},
 	}
 	return plugin.Exec()
 }

cmd/kaniko-ecr/main.go

@@ -17,7 +17,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
 	"github.com/aws/aws-sdk-go/aws/session"
 	ecrv1 "github.com/aws/aws-sdk-go/service/ecr"
-	ecrpublicv1 "github.com/aws/aws-sdk-go/service/ecrpublic"
 	"github.com/aws/smithy-go"
 	"github.com/hashicorp/go-version"
 	"github.com/joho/godotenv"
@@ -65,11 +64,6 @@ func main() {
 			Value:  "Dockerfile",
 			EnvVar: "PLUGIN_DOCKERFILE",
 		},
-		cli.StringFlag{
-			Name:   "docker-registry",
-			Usage:  "docker registry",
-			EnvVar: "PLUGIN_DOCKER_REGISTRY,DOCKER_REGISTRY",
-		},
 		cli.StringFlag{
 			Name:   "docker-username",
 			Usage:  "docker username",
@@ -246,18 +240,15 @@ func run(c *cli.Context) error {
 	registry := c.String("registry")
 	region := c.String("region")
 	noPush := c.Bool("no-push")
-	assumeRole := c.String("assume-role")
-	externalId := c.String("external-id")
 
 	dockerConfig, err := createDockerConfig(
-		c.String("docker-registry"),
 		c.String("docker-username"),
 		c.String("docker-password"),
 		c.String("access-key"),
 		c.String("secret-key"),
 		registry,
-		assumeRole,
+		c.String("assume-role"),
-		externalId,
+		c.String("external-id"),
 		region,
 		noPush,
 	)
@@ -276,7 +267,7 @@ func run(c *cli.Context) error {
 
 	// only create repository when pushing and create-repository is true
 	if !noPush && c.Bool("create-repository") {
-		if err := createRepository(region, repo, registry, assumeRole, externalId); err != nil {
+		if err := createRepository(region, repo, registry); err != nil {
 			return err
 		}
 	}
@@ -286,7 +277,7 @@ func run(c *cli.Context) error {
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		if err := uploadLifeCyclePolicy(region, repo, string(contents), assumeRole, externalId); err != nil {
+		if err := uploadLifeCyclePolicy(region, repo, string(contents)); err != nil {
 			logrus.Fatal(fmt.Sprintf("error uploading ECR lifecycle policy: %v", err))
 		}
 	}
@@ -296,7 +287,7 @@ func run(c *cli.Context) error {
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		if err := uploadRepositoryPolicy(region, repo, registry, string(contents), assumeRole, externalId); err != nil {
+		if err := uploadRepositoryPolicy(region, repo, registry, string(contents)); err != nil {
 			logrus.Fatal(fmt.Sprintf("error uploading ECR lifecycle policy: %v", err))
 		}
 	}
@@ -337,16 +328,12 @@ func run(c *cli.Context) error {
 	return plugin.Exec()
 }
 
-func createDockerConfig(dockerRegistry, dockerUsername, dockerPassword, accessKey, secretKey,
+func createDockerConfig(dockerUsername, dockerPassword, accessKey, secretKey,
 	registry, assumeRole, externalId, region string, noPush bool) (*docker.Config, error) {
 	dockerConfig := docker.NewConfig()
 
 	if dockerUsername != "" {
-		// if no docker registry provided, use dockerhub by default
+		dockerConfig.SetAuth(docker.RegistryV1, dockerUsername, dockerPassword)
-		if len(dockerRegistry) == 0 {
-			dockerRegistry = docker.RegistryV1
-		}
-		dockerConfig.SetAuth(dockerRegistry, dockerUsername, dockerPassword)
 	}
 
 	if assumeRole != "" {
@@ -386,7 +373,7 @@ func createDockerConfig(dockerRegistry, dockerUsername, dockerPassword, accessKe
 	return dockerConfig, nil
 }
 
-func createRepository(region, repo, registry, assumeRole, externalId string) error {
+func createRepository(region, repo, registry string) error {
 	if registry == "" {
 		return fmt.Errorf("registry must be specified")
 	}
@@ -395,29 +382,22 @@ func createRepository(region, repo, registry, assumeRole, externalId string) err
 		return fmt.Errorf("repo must be specified")
 	}
 
+	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
+	if err != nil {
+		return errors.Wrap(err, "failed to load aws config")
+	}
+
 	var createErr error
 
-	if assumeRole != "" {
+	//create public repo
-		if isRegistryPublic(registry) {
+	//if registry string starts with public domain (ex: public.ecr.aws/example-registry)
-			_, createErr = getAssumeRoleEcrPublicSvc(region, assumeRole, externalId).CreateRepository(&ecrpublicv1.CreateRepositoryInput{RepositoryName: &repo})
+	if isRegistryPublic(registry) {
-		} else {
+		svc := ecrpublic.NewFromConfig(cfg)
-			_, createErr = getAssumeRoleEcrSvc(region, assumeRole, externalId).CreateRepository(&ecrv1.CreateRepositoryInput{RepositoryName: &repo})
+		_, createErr = svc.CreateRepository(context.TODO(), &ecrpublic.CreateRepositoryInput{RepositoryName: &repo})
-		}
+		//create private repo
 	} else {
-		cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
+		svc := ecr.NewFromConfig(cfg)
-		if err != nil {
+		_, createErr = svc.CreateRepository(context.TODO(), &ecr.CreateRepositoryInput{RepositoryName: &repo})
-			return errors.Wrap(err, "failed to load aws config")
-		}
-		//create public repo
-		//if registry string starts with public domain (ex: public.ecr.aws/example-registry)
-		if isRegistryPublic(registry) {
-			svc := ecrpublic.NewFromConfig(cfg)
-			_, createErr = svc.CreateRepository(context.TODO(), &ecrpublic.CreateRepositoryInput{RepositoryName: &repo})
-			//create private repo
-		} else {
-			svc := ecr.NewFromConfig(cfg)
-			_, createErr = svc.CreateRepository(context.TODO(), &ecr.CreateRepositoryInput{RepositoryName: &repo})
-		}
 	}
 
 	var apiError smithy.APIError
@@ -428,67 +408,46 @@ func createRepository(region, repo, registry, assumeRole, externalId string) err
 	return nil
 }
 
-func uploadLifeCyclePolicy(region, repo, lifecyclePolicy, assumeRole, externalId string) (err error) {
+func uploadLifeCyclePolicy(region, repo, lifecyclePolicy string) (err error) {
-	if assumeRole != "" {
+	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-		input := &ecrv1.PutLifecyclePolicyInput{
+	if err != nil {
-			LifecyclePolicyText: aws.String(lifecyclePolicy),
+		return errors.Wrap(err, "failed to load aws config")
-			RepositoryName:      aws.String(repo),
-		}
-		_, err = getAssumeRoleEcrSvc(region, assumeRole, externalId).PutLifecyclePolicy(input)
-	} else {
-		cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-		if err != nil {
-			return errors.Wrap(err, "failed to load aws config")
-		}
-
-		svc := ecr.NewFromConfig(cfg)
-
-		input := &ecr.PutLifecyclePolicyInput{
-			LifecyclePolicyText: aws.String(lifecyclePolicy),
-			RepositoryName:      aws.String(repo),
-		}
-		_, err = svc.PutLifecyclePolicy(context.TODO(), input)
 	}
 
+	svc := ecr.NewFromConfig(cfg)
+
+	input := &ecr.PutLifecyclePolicyInput{
+		LifecyclePolicyText: aws.String(lifecyclePolicy),
+		RepositoryName:      aws.String(repo),
+	}
+	_, err = svc.PutLifecyclePolicy(context.TODO(), input)
+
 	return err
 }
 
-func uploadRepositoryPolicy(region, repo, registry, repositoryPolicy, assumeRole, externalId string) (err error) {
+func uploadRepositoryPolicy(region, repo, registry, repositoryPolicy string) (err error) {
-	if assumeRole != "" {
+	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-		if isRegistryPublic(registry) {
+	if err != nil {
-			input := &ecrpublicv1.SetRepositoryPolicyInput{
+		return errors.Wrap(err, "failed to load aws config")
-				PolicyText:     aws.String(repositoryPolicy),
+	}
-				RepositoryName: aws.String(repo),
-			}
-			_, err = getAssumeRoleEcrPublicSvc(region, assumeRole, externalId).SetRepositoryPolicy(input)
-		} else {
-			input := &ecrv1.SetRepositoryPolicyInput{
-				PolicyText:     aws.String(repositoryPolicy),
-				RepositoryName: aws.String(repo),
-			}
-			_, err = getAssumeRoleEcrSvc(region, assumeRole, externalId).SetRepositoryPolicy(input)
-		}
-	} else {
-		cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-		if err != nil {
-			return errors.Wrap(err, "failed to load aws config")
-		}
 
-		if isRegistryPublic(registry) {
+	if isRegistryPublic(registry) {
-			svc := ecrpublic.NewFromConfig(cfg)
+		svc := ecrpublic.NewFromConfig(cfg)
-			input := &ecrpublic.SetRepositoryPolicyInput{
+
-				PolicyText:     aws.String(repositoryPolicy),
+		input := &ecrpublic.SetRepositoryPolicyInput{
-				RepositoryName: aws.String(repo),
+			PolicyText:     aws.String(repositoryPolicy),
-			}
+			RepositoryName: aws.String(repo),
-			_, err = svc.SetRepositoryPolicy(context.TODO(), input)
-		} else {
-			svc := ecr.NewFromConfig(cfg)
-			input := &ecr.SetRepositoryPolicyInput{
-				PolicyText:     aws.String(repositoryPolicy),
-				RepositoryName: aws.String(repo),
-			}
-			_, err = svc.SetRepositoryPolicy(context.TODO(), input)
 		}
+		_, err = svc.SetRepositoryPolicy(context.TODO(), input)
+	} else {
+
+		svc := ecr.NewFromConfig(cfg)
+
+		input := &ecr.SetRepositoryPolicyInput{
+			PolicyText:     aws.String(repositoryPolicy),
+			RepositoryName: aws.String(repo),
+		}
+		_, err = svc.SetRepositoryPolicy(context.TODO(), input)
 	}
 
 	return err
@@ -510,7 +469,7 @@ func getAssumeRoleCreds(region, roleArn, externalId, roleSessionName string) (st
 
 	username, password, registry, err := getAuthInfo(svc)
 	if err != nil {
-		return "", "", "", errors.Wrap(err, "failed to get ECR auth: no basic auth credentials")
+		return "", "", "", errors.Wrap(err, "failed to get ECR auth")
 	}
 	return username, password, registry, nil
 }
@@ -538,36 +497,6 @@ func getAuthInfo(svc *ecrv1.ECR) (username, password, registry string, err error
 	return
 }
 
-func getAssumeRoleEcrSvc(region, assumeRole, externalId string) *ecrv1.ECR {
-	sess, err := session.NewSession(&awsv1.Config{Region: &region})
-	if err != nil {
-		logrus.Fatal(err, "failed to create aws session")
-	}
-
-	return ecrv1.New(sess, &awsv1.Config{
-		Credentials: stscreds.NewCredentials(sess, assumeRole, func(p *stscreds.AssumeRoleProvider) {
-			if externalId != "" {
-				p.ExternalID = &externalId
-			}
-		}),
-	})
-}
-
-func getAssumeRoleEcrPublicSvc(region, assumeRole, externalId string) *ecrpublicv1.ECRPublic {
-	sess, err := session.NewSession(&awsv1.Config{Region: &region})
-	if err != nil {
-		logrus.Fatal(err, "failed to create aws session")
-	}
-
-	return ecrpublicv1.New(sess, &awsv1.Config{
-		Credentials: stscreds.NewCredentials(sess, assumeRole, func(p *stscreds.AssumeRoleProvider) {
-			if externalId != "" {
-				p.ExternalID = &externalId
-			}
-		}),
-	})
-}
-
 func isRegistryPublic(registry string) bool {
 	return strings.HasPrefix(registry, ecrPublicDomain)
 }

cmd/kaniko-ecr/main_test.go

@@ -10,7 +10,6 @@ import (
 
 func TestCreateDockerConfig(t *testing.T) {
 	got, err := createDockerConfig(
-		"",
 		"docker-username",
 		"docker-password",
 		"access-key",
@@ -35,37 +34,10 @@ func TestCreateDockerConfig(t *testing.T) {
 	}
 }
 
-func TestCreateDockerConfigFromGivenRegistry(t *testing.T) {
-	got, err := createDockerConfig(
-		"docker-registry",
-		"docker-username",
-		"docker-password",
-		"access-key",
-		"secret-key",
-		"ecr-registry",
-		"",
-		"",
-		"",
-		false,
-	)
-	if err != nil {
-		t.Error("failed to create docker config")
-	}
-
-	want := docker.NewConfig()
-	want.SetAuth("docker-registry", "docker-username", "docker-password")
-	want.SetCredHelper(docker.RegistryECRPublic, "ecr-login")
-	want.SetCredHelper("ecr-registry", "ecr-login")
-	if !reflect.DeepEqual(want, got) {
-		t.Errorf("not equal:\n  want: %#v\n   got: %#v", want, got)
-	}
-}
-
 func TestCreateDockerConfigKanikoOneDotEight(t *testing.T) {
 	os.Setenv(kanikoVersionEnv, "1.8.1")
 	defer os.Setenv(kanikoVersionEnv, "")
 	got, err := createDockerConfig(
-		"",
 		"docker-username",
 		"docker-password",
 		"access-key",

cmd/kaniko-gar/main.go

@@ -1,234 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-
-	"github.com/joho/godotenv"
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
-
-	kaniko "github.com/drone/drone-kaniko"
-	"github.com/drone/drone-kaniko/pkg/artifact"
-)
-
-const (
-	// GAR JSON key file path
-	garKeyPath     string = "/kaniko/config.json"
-	garEnvVariable string = "GOOGLE_APPLICATION_CREDENTIALS"
-
-	defaultDigestFile string = "/kaniko/digest-file"
-)
-
-var (
-	version = "unknown"
-)
-
-func main() {
-	// Load env-file if it exists first
-	if env := os.Getenv("PLUGIN_ENV_FILE"); env != "" {
-		if err := godotenv.Load(env); err != nil {
-			logrus.Fatal(err)
-		}
-	}
-
-	app := cli.NewApp()
-	app.Name = "kaniko gar plugin"
-	app.Usage = "kaniko gar plugin"
-	app.Action = run
-	app.Version = version
-	app.Flags = []cli.Flag{
-		cli.StringFlag{
-			Name:   "dockerfile",
-			Usage:  "build dockerfile",
-			Value:  "Dockerfile",
-			EnvVar: "PLUGIN_DOCKERFILE",
-		},
-		cli.StringFlag{
-			Name:   "context",
-			Usage:  "build context",
-			Value:  ".",
-			EnvVar: "PLUGIN_CONTEXT",
-		},
-		cli.StringFlag{
-			Name:   "drone-commit-ref",
-			Usage:  "git commit ref passed by Drone",
-			EnvVar: "DRONE_COMMIT_REF",
-		},
-		cli.StringFlag{
-			Name:   "drone-repo-branch",
-			Usage:  "git repository default branch passed by Drone",
-			EnvVar: "DRONE_REPO_BRANCH",
-		},
-		cli.StringSliceFlag{
-			Name:     "tags",
-			Usage:    "build tags",
-			Value:    &cli.StringSlice{"latest"},
-			EnvVar:   "PLUGIN_TAGS",
-			FilePath: ".tags",
-		},
-		cli.BoolFlag{
-			Name:   "expand-tag",
-			Usage:  "enable for semver tagging",
-			EnvVar: "PLUGIN_EXPAND_TAG",
-		},
-		cli.BoolFlag{
-			Name:   "auto-tag",
-			Usage:  "enable auto generation of build tags",
-			EnvVar: "PLUGIN_AUTO_TAG",
-		},
-		cli.StringFlag{
-			Name:   "auto-tag-suffix",
-			Usage:  "the suffix of auto build tags",
-			EnvVar: "PLUGIN_AUTO_TAG_SUFFIX",
-		},
-		cli.StringSliceFlag{
-			Name:   "args",
-			Usage:  "build args",
-			EnvVar: "PLUGIN_BUILD_ARGS",
-		},
-		cli.StringFlag{
-			Name:   "target",
-			Usage:  "build target",
-			EnvVar: "PLUGIN_TARGET",
-		},
-		cli.StringFlag{
-			Name:   "repo",
-			Usage:  "gar repository",
-			EnvVar: "PLUGIN_REPO",
-		},
-		cli.StringSliceFlag{
-			Name:   "custom-labels",
-			Usage:  "additional k=v labels",
-			EnvVar: "PLUGIN_CUSTOM_LABELS",
-		},
-		cli.StringFlag{
-			Name:   "registry",
-			Usage:  "gar registry",
-			EnvVar: "PLUGIN_REGISTRY",
-		},
-		cli.StringSliceFlag{
-			Name:   "registry-mirrors",
-			Usage:  "docker registry mirrors",
-			EnvVar: "PLUGIN_REGISTRY_MIRRORS",
-		},
-		cli.StringFlag{
-			Name:   "json-key",
-			Usage:  "docker username",
-			EnvVar: "PLUGIN_JSON_KEY",
-		},
-		cli.StringFlag{
-			Name:   "snapshot-mode",
-			Usage:  "Specify one of full, redo or time as snapshot mode",
-			EnvVar: "PLUGIN_SNAPSHOT_MODE",
-		},
-		cli.BoolFlag{
-			Name:   "enable-cache",
-			Usage:  "Set this flag to opt into caching with kaniko",
-			EnvVar: "PLUGIN_ENABLE_CACHE",
-		},
-		cli.StringFlag{
-			Name:   "cache-repo",
-			Usage:  "Remote repository that will be used to store cached layers. Cache repo should be present in specified registry. enable-cache needs to be set to use this flag",
-			EnvVar: "PLUGIN_CACHE_REPO",
-		},
-		cli.IntFlag{
-			Name:   "cache-ttl",
-			Usage:  "Cache timeout in hours. Defaults to two weeks.",
-			EnvVar: "PLUGIN_CACHE_TTL",
-		},
-		cli.StringFlag{
-			Name:   "artifact-file",
-			Usage:  "Artifact file location that will be generated by the plugin. This file will include information of docker images that are uploaded by the plugin.",
-			EnvVar: "PLUGIN_ARTIFACT_FILE",
-		},
-		cli.BoolFlag{
-			Name:   "no-push",
-			Usage:  "Set this flag if you only want to build the image, without pushing to a registry",
-			EnvVar: "PLUGIN_NO_PUSH",
-		},
-		cli.StringFlag{
-			Name:   "verbosity",
-			Usage:  "Set this flag as --verbosity=<panic|fatal|error|warn|info|debug|trace> to set the logging level for kaniko. Defaults to info.",
-			EnvVar: "PLUGIN_VERBOSITY",
-		},
-		cli.StringFlag{
-			Name:   "platform",
-			Usage:  "Allows to build with another default platform than the host, similarly to docker build --platform",
-			EnvVar: "PLUGIN_PLATFORM",
-		},
-		cli.BoolFlag{
-			Name:   "skip-unused-stages",
-			Usage:  "build only used stages",
-			EnvVar: "PLUGIN_SKIP_UNUSED_STAGES",
-		},
-	}
-
-	if err := app.Run(os.Args); err != nil {
-		logrus.Fatal(err)
-	}
-}
-
-func run(c *cli.Context) error {
-	noPush := c.Bool("no-push")
-	jsonKey := c.String("json-key")
-
-	// JSON key may not be set in the following cases:
-	// 1. Image does not need to be pushed to GAR.
-	// 2. Workload identity is set on GKE in which pod will inherit the credentials via service account.
-	if jsonKey != "" {
-		if err := setupGARAuth(jsonKey); err != nil {
-			return err
-		}
-	}
-
-	plugin := kaniko.Plugin{
-		Build: kaniko.Build{
-			DroneCommitRef:   c.String("drone-commit-ref"),
-			DroneRepoBranch:  c.String("drone-repo-branch"),
-			Dockerfile:       c.String("dockerfile"),
-			Context:          c.String("context"),
-			Tags:             c.StringSlice("tags"),
-			AutoTag:          c.Bool("auto-tag"),
-			AutoTagSuffix:    c.String("auto-tag-suffix"),
-			ExpandTag:        c.Bool("expand-tag"),
-			Args:             c.StringSlice("args"),
-			Target:           c.String("target"),
-			Repo:             fmt.Sprintf("%s/%s", c.String("registry"), c.String("repo")),
-			Mirrors:          c.StringSlice("registry-mirrors"),
-			Labels:           c.StringSlice("custom-labels"),
-			SnapshotMode:     c.String("snapshot-mode"),
-			EnableCache:      c.Bool("enable-cache"),
-			CacheRepo:        fmt.Sprintf("%s/%s", c.String("registry"), c.String("cache-repo")),
-			CacheTTL:         c.Int("cache-ttl"),
-			DigestFile:       defaultDigestFile,
-			NoPush:           noPush,
-			Verbosity:        c.String("verbosity"),
-			Platform:         c.String("platform"),
-			SkipUnusedStages: c.Bool("skip-unused-stages"),
-		},
-		Artifact: kaniko.Artifact{
-			Tags:         c.StringSlice("tags"),
-			Repo:         c.String("repo"),
-			Registry:     c.String("registry"),
-			ArtifactFile: c.String("artifact-file"),
-			RegistryType: artifact.GAR,
-		},
-	}
-	return plugin.Exec()
-}
-
-func setupGARAuth(jsonKey string) error {
-	err := ioutil.WriteFile(garKeyPath, []byte(jsonKey), 0644)
-	if err != nil {
-		return errors.Wrap(err, "failed to write GAR JSON key")
-	}
-
-	err = os.Setenv(garEnvVariable, garKeyPath)
-	if err != nil {
-		return errors.Wrap(err, fmt.Sprintf("failed to set %s environment variable", garEnvVariable))
-	}
-	return nil
-}

docker/acr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.8.1
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.8.1
 ADD release/linux/amd64/kaniko-acr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-acr"]

docker/acr/Dockerfile.linux.arm64

@@ -1,8 +1,8 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.8.1
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.8.1
 ADD release/linux/arm64/kaniko-acr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-acr"]

docker/docker/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 ADD release/linux/amd64/kaniko-docker /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-docker"]

docker/docker/Dockerfile.linux.arm64

@@ -1,8 +1,8 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 ADD release/linux/arm64/kaniko-docker /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-docker"]

docker/ecr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 ADD release/linux/amd64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

docker/ecr/Dockerfile.linux.arm64

@@ -1,8 +1,8 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 
 ADD release/linux/arm64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

docker/gar/Dockerfile.linux.amd64

@@ -1,5 +0,0 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
-
-ENV KANIKO_VERSION=1.19.2
-ADD release/linux/amd64/kaniko-gar /kaniko/
-ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gar/Dockerfile.linux.amd64.kaniko1.9.1

@@ -1,5 +0,0 @@
-FROM gcr.io/kaniko-project/executor:v1.9.1
-
-ENV KANIKO_VERSION=1.9.1
-ADD release/linux/amd64/kaniko-gar /kaniko/
-ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gar/Dockerfile.linux.arm64

@@ -1,8 +0,0 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
-
-ENV HOME /root
-ENV USER root
-ENV KANIKO_VERSION=1.19.2
-
-ADD release/linux/arm64/kaniko-gar /kaniko/
-ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gar/Dockerfile.linux.arm64.kaniko1.9.1

@@ -1,5 +0,0 @@
-FROM gcr.io/kaniko-project/executor:v1.9.1
-
-ENV KANIKO_VERSION=1.9.1
-ADD release/linux/arm64/kaniko-gar /kaniko/
-ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gar/manifest-kaniko1.9.1.tmpl

@@ -1,18 +0,0 @@
-image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.9.1{{else}}latest-kaniko1.9.1{{/if}}
-{{#if build.tags}}
-tags:
-{{#each build.tags}}
-  - {{this}}
-{{/each}}
-{{/if}}
-manifests:
-  -
-    image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.9.1
-    platform:
-      architecture: amd64
-      os: linux
-  -
-    image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.9.1
-    platform:
-      architecture: arm64
-      os: linux

docker/gar/manifest.tmpl

@@ -1,18 +0,0 @@
-image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}latest{{/if}}
-{{#if build.tags}}
-tags:
-{{#each build.tags}}
-  - {{this}}
-{{/each}}
-{{/if}}
-manifests:
-  -
-    image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64
-    platform:
-      architecture: amd64
-      os: linux
-  -
-    image: plugins/kaniko-gar:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64
-    platform:
-      architecture: arm64
-      os: linux

docker/gcr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 ADD release/linux/amd64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

docker/gcr/Dockerfile.linux.arm64

@@ -1,8 +1,8 @@
-FROM gcr.io/kaniko-project/executor:v1.19.2
+FROM gcr.io/kaniko-project/executor:v1.6.0
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.19.2
+ENV KANIKO_VERSION=1.6.0
 
 ADD release/linux/arm64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

go.mod

@@ -1,8 +1,6 @@
 module github.com/drone/drone-kaniko
 
 require (
-	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.1.1
-	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.1.0
 	github.com/aws/aws-sdk-go v1.44.52
 	github.com/aws/aws-sdk-go-v2 v1.16.7
 	github.com/aws/aws-sdk-go-v2/config v1.15.14
@@ -20,6 +18,8 @@ require (
 )
 
 require (
+	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.1.1 // indirect
+	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.1.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.0.0 // indirect
 	github.com/AzureAD/microsoft-authentication-library-for-go v0.5.3 // indirect
 	github.com/aws/aws-sdk-go-v2/credentials v1.12.9 // indirect
@@ -43,4 +43,4 @@ require (
 	golang.org/x/text v0.3.7 // indirect
 )
 
-go 1.21
+go 1.18

go.sum

@@ -43,13 +43,9 @@ github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dnaeon/go-vcr v1.1.0 h1:ReYa/UBrRyQdant9B4fNHGoCNKw6qh6P0fsdGmZpR7c=
-github.com/dnaeon/go-vcr v1.1.0/go.mod h1:M7tiix8f0r6mKKJ3Yq/kqU1OYf3MnfmBWVbPx/yU9ko=
 github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
 github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8eU=
-github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
 github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -80,9 +76,9 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
 github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
 github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/urfave/cli v1.22.9 h1:cv3/KhXGBGjEXLC4bH0sLuJ9BewaAbpk5oyMOveu4pw=
 github.com/urfave/cli v1.22.9/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa h1:zuSxTR4o9y82ebqCUJYNGJbGPo6sKVl54f/TVDObg1c=
@@ -97,6 +93,8 @@ golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220712014510-0a85c31ab51e h1:NHvCuwuS43lGnYhten69ZWqi2QOj/CiDNcKbVqwVoew=
+golang.org/x/sys v0.0.0-20220712014510-0a85c31ab51e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f h1:v4INt8xihDGvnrfjMDVXGxw9wrfxYyCjk0KbXjhR55s=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -105,8 +103,5 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

kaniko.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 
 	"github.com/drone/drone-kaniko/pkg/artifact"
-	"github.com/drone/drone-kaniko/pkg/output"
 	"github.com/drone/drone-kaniko/pkg/tagger"
 	"golang.org/x/mod/semver"
 )
@@ -39,7 +38,6 @@ type (
 		Verbosity        string   // Log level
 		Platform         string   // Allows to build with another default platform than the host, similarly to docker build --platform
 		SkipUnusedStages bool     // Build only used stages
-		TarPath          string   // Set this flag to save the image as a tarball at path
 	}
 
 	// Artifact defines content of artifact file
@@ -51,16 +49,10 @@ type (
 		ArtifactFile string                    // Artifact file location
 	}
 
-	// Output defines content of output file
-	Output struct {
-		OutputFile string // File where plugin output are saved
-	}
-
 	// Plugin defines the Docker plugin parameters.
 	Plugin struct {
 		Build    Build    // Docker build configuration
 		Artifact Artifact // Artifact file content
-		Output   Output   // Output file content
 	}
 )
 
@@ -156,15 +148,14 @@ func (p Plugin) Exec() error {
 		fmt.Sprintf("--context=dir://%s", p.Build.Context),
 	}
 
-	// Set the destination repository only when we push or save to tarball
+	// Set the destination repository
-	if !p.Build.NoPush || p.Build.TarPath != "" {
+	if !p.Build.NoPush {
 		for _, tag := range tags {
 			for _, label := range p.Build.labelsForTag(tag) {
 				cmdArgs = append(cmdArgs, fmt.Sprintf("--destination=%s:%s", p.Build.Repo, label))
 			}
 		}
 	}
-
 	// Set the build arguments
 	for _, arg := range p.Build.Args {
 		cmdArgs = append(cmdArgs, fmt.Sprintf("--build-arg=%s", arg))
@@ -221,10 +212,6 @@ func (p Plugin) Exec() error {
 		cmdArgs = append(cmdArgs, "--skip-unused-stages")
 	}
 
-	if p.Build.TarPath != "" {
-		cmdArgs = append(cmdArgs, fmt.Sprintf("--tar-path=%s", p.Build.TarPath))
-	}
-	
 	cmd := exec.Command("/kaniko/executor", cmdArgs...)
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
@@ -236,29 +223,19 @@ func (p Plugin) Exec() error {
 	}
 
 	if p.Build.DigestFile != "" && p.Artifact.ArtifactFile != "" {
-		err = artifact.WritePluginArtifactFile(p.Artifact.RegistryType, p.Artifact.ArtifactFile, p.Artifact.Registry, p.Artifact.Repo, getDigest(p.Build.DigestFile), p.Artifact.Tags)
+		content, err := ioutil.ReadFile(p.Build.DigestFile)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "failed to read digest file contents at path: %s with error: %s\n", p.Build.DigestFile, err)
+		}
+		err = artifact.WritePluginArtifactFile(p.Artifact.RegistryType, p.Artifact.ArtifactFile, p.Artifact.Registry, p.Artifact.Repo, string(content), p.Artifact.Tags)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "failed to write plugin artifact file at path: %s with error: %s\n", p.Artifact.ArtifactFile, err)
 		}
 	}
 
-	if p.Output.OutputFile != "" {
-		if err = output.WritePluginOutputFile(p.Output.OutputFile, getDigest(p.Build.DigestFile)); err != nil {
-			fmt.Fprintf(os.Stderr, "failed to write plugin output file at path: %s with error: %s\n", p.Output.OutputFile, err)
-		}
-	}
-
 	return nil
 }
 
-func getDigest(digestFile string) string {
-	content, err := ioutil.ReadFile(digestFile)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "failed to read digest file contents at path: %s with error: %s\n", digestFile, err)
-	}
-	return string(content)
-}
-
 // trace writes each command to stdout with the command wrapped in an xml
 // tag so that it can be extracted and displayed in the logs.
 func trace(cmd *exec.Cmd) {

pkg/artifact/artifact.go

@@ -20,7 +20,6 @@ const (
 	Docker RegistryTypeEnum = "Docker"
 	ECR    RegistryTypeEnum = "ECR"
 	GCR    RegistryTypeEnum = "GCR"
-	GAR    RegistryTypeEnum = "GAR"
 )
 
 type (

pkg/output/output.go

@@ -1,12 +0,0 @@
-package output
-
-import (
-	"github.com/joho/godotenv"
-)
-
-func WritePluginOutputFile(outputFilePath, digest string) error {
-	output := map[string]string{
-		"digest": digest,
-	}
-	return godotenv.Write(output, outputFilePath)
-}

scripts/build.sh

@@ -14,16 +14,13 @@ GOOS=linux GOARCH=amd64 go build -o release/linux/amd64/kaniko-gcr    ./cmd/kani
 GOOS=linux GOARCH=amd64 go build -o release/linux/amd64/kaniko-acr    ./cmd/kaniko-acr
 GOOS=linux GOARCH=amd64 go build -o release/linux/amd64/kaniko-ecr    ./cmd/kaniko-ecr
 GOOS=linux GOARCH=amd64 go build -o release/linux/amd64/kaniko-docker ./cmd/kaniko-docker
-GOOS=linux GOARCH=amd64 go build -o release/linux/amd64/kaniko-gar    ./cmd/kaniko-gar
 
 GOOS=linux GOARCH=arm64 go build -o release/linux/arm64/kaniko-gcr    ./cmd/kaniko-gcr
 GOOS=linux GOARCH=arm64 go build -o release/linux/arm64/kaniko-acr    ./cmd/kaniko-acr
 GOOS=linux GOARCH=arm64 go build -o release/linux/arm64/kaniko-ecr    ./cmd/kaniko-ecr
 GOOS=linux GOARCH=arm64 go build -o release/linux/arm64/kaniko-docker ./cmd/kaniko-docker
-GOOS=linux GOARCH=arm64 go build -o release/linux/arm64/kaniko-gar    ./cmd/kaniko-gar
 
 GOOS=linux GOARCH=arm   go build -o release/linux/arm/kaniko-gcr      ./cmd/kaniko-gcr
 GOOS=linux GOARCH=arm   go build -o release/linux/arm/kaniko-acr      ./cmd/kaniko-acr
 GOOS=linux GOARCH=arm   go build -o release/linux/arm/kaniko-ecr      ./cmd/kaniko-ecr
 GOOS=linux GOARCH=arm   go build -o release/linux/arm/kaniko-docker   ./cmd/kaniko-docker
-GOOS=linux GOARCH=arm   go build -o release/linux/arm/kaniko-gar      ./cmd/kaniko-gar

scripts/docker.sh

@@ -15,12 +15,10 @@ set -x
 
 # build the binary
 go build -o release/linux/amd64/kaniko-gcr    ./cmd/kaniko-gcr
-go build -o release/linux/amd64/kaniko-gar    ./cmd/kaniko-gar
 go build -o release/linux/amd64/kaniko-ecr    ./cmd/kaniko-ecr
 go build -o release/linux/amd64/kaniko-docker ./cmd/kaniko-docker
 
 # build the docker image
 docker build -f docker/gcr/Dockerfile.linux.amd64    -t plugins/kaniko-gcr .
-docker build -f docker/gar/Dockerfile.linux.amd64    -t plugins/kaniko-gar .
 docker build -f docker/ecr/Dockerfile.linux.amd64    -t plugins/kaniko-ecr .
 docker build -f docker/docker/Dockerfile.linux.amd64 -t plugins/kaniko .