add validations on response from /subscriptions API in ACR (#91)

* seperate out gcr and gar

.drone.yml

@@ -1,10 +1,17 @@
 kind: pipeline
-type: docker
+type: vm
 name: default
 
+pool:
+  use: ubuntu
+
+platform:
+  os: linux
+  arch: amd64
+
 steps:
 - name: build
-  image: golang:1.18
+  image: golang:1.21
   commands:
   - go test ./...
   - sh scripts/build.sh
@@ -43,6 +50,23 @@ 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:
@@ -77,14 +101,14 @@ steps:
       exclude:
       - pull_request
 
-- name: docker-kaniko-v1-8
+- name: docker-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko
     auto_tag: true
-    auto_tag_suffix: linux-amd64-kaniko1.8.1
+    auto_tag_suffix: linux-amd64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/docker/Dockerfile.linux.amd64.kaniko1.8.1
+    dockerfile: docker/docker/Dockerfile.linux.amd64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -94,14 +118,14 @@ steps:
       exclude:
       - pull_request
 
-- name: gcr-kaniko-v1-8
+- name: gcr-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko-gcr
     auto_tag: true
-    auto_tag_suffix: linux-amd64-kaniko1.8.1
+    auto_tag_suffix: linux-amd64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/gcr/Dockerfile.linux.amd64.kaniko1.8.1
+    dockerfile: docker/gcr/Dockerfile.linux.amd64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -111,15 +135,31 @@ 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-v1-8
+- name: ecr-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko-ecr
     auto_tag: true
-    auto_tag_suffix: linux-amd64-kaniko1.8.1
+    auto_tag_suffix: linux-amd64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/ecr/Dockerfile.linux.amd64.kaniko1.8.1
+    dockerfile: docker/ecr/Dockerfile.linux.amd64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -130,16 +170,15 @@ steps:
       - pull_request
 ---
 kind: pipeline
-type: docker
+type: vm
 name: arm
 
-platform:
-  os: linux
-  arch: arm64
+pool:
+  use: ubuntu_arm64
 
 steps:
 - name: build
-  image: golang:1.18
+  image: golang:1.21
   commands:
   - go test ./...
   - sh scripts/build.sh
@@ -178,6 +217,23 @@ 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:
@@ -212,14 +268,14 @@ steps:
       exclude:
       - pull_request
 
-- name: docker-kaniko-v1-8
+- name: docker-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko
     auto_tag: true
-    auto_tag_suffix: linux-arm64-kaniko1.8.1
+    auto_tag_suffix: linux-arm64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/docker/Dockerfile.linux.arm64.kaniko1.8.1
+    dockerfile: docker/docker/Dockerfile.linux.arm64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -229,14 +285,14 @@ steps:
       exclude:
       - pull_request
 
-- name: gcr-kaniko-v1-8
+- name: gcr-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko-gcr
     auto_tag: true
-    auto_tag_suffix: linux-arm64-kaniko1.8.1
+    auto_tag_suffix: linux-arm64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/gcr/Dockerfile.linux.arm64.kaniko1.8.1
+    dockerfile: docker/gcr/Dockerfile.linux.arm64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -246,15 +302,31 @@ 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-v1-8
+- name: ecr-kaniko-v1-9
   image: plugins/docker
   settings:
     repo: plugins/kaniko-ecr
     auto_tag: true
-    auto_tag_suffix: linux-arm64-kaniko1.8.1
+    auto_tag_suffix: linux-arm64-kaniko1.9.1
     daemon_off: false
-    dockerfile: docker/ecr/Dockerfile.linux.arm64.kaniko1.8.1
+    dockerfile: docker/ecr/Dockerfile.linux.arm64.kaniko1.9.1
     username:
       from_secret: docker_username
     password:
@@ -265,9 +337,12 @@ steps:
       - pull_request
 ---
 kind: pipeline
-type: docker
+type: vm
 name: notifications-docker
 
+pool:
+  use: ubuntu
+
 platform:
   os: linux
   arch: amd64
@@ -297,6 +372,18 @@ 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
@@ -332,9 +419,12 @@ depends_on:
 
 ---
 kind: pipeline
-type: docker
+type: vm
 name: notifications-docker-kaniko1-8
 
+pool:
+  use: ubuntu
+
 platform:
   os: linux
   arch: amd64
@@ -348,7 +438,7 @@ steps:
     ignore_missing: true
     password:
       from_secret: docker_password
-    spec: docker/docker/manifest-kaniko1.8.1.tmpl
+    spec: docker/docker/manifest-kaniko1.9.1.tmpl
     username:
       from_secret: docker_username
 
@@ -360,7 +450,19 @@ steps:
     ignore_missing: true
     password:
       from_secret: docker_password
-    spec: docker/gcr/manifest-kaniko1.8.1.tmpl
+    spec: docker/gcr/manifest-kaniko1.9.1.tmpl
+    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
 
@@ -372,7 +474,7 @@ steps:
     ignore_missing: true
     password:
       from_secret: docker_password
-    spec: docker/ecr/manifest-kaniko1.8.1.tmpl
+    spec: docker/ecr/manifest-kaniko1.9.1.tmpl
     username:
       from_secret: docker_username
 

README.md

@@ -2,7 +2,7 @@
 
 Drone kaniko plugin uses [kaniko](https://github.com/GoogleContainerTools/kaniko) to build and publish Docker images to a container registry.
 
-Plugin images are published with 1.6.0 as well as 1.8.1 kaniko version from 1.5.1 release tag. `plugins/kaniko:<release-tag>` uses 1.6.0 version while `plugins/kaniko:<release-tag>-kaniko1.8.1` uses 1.8.1 version. Similar convention is used for plugins/kaniko-ecr & plugins/kaniko-gcr images as well.
+Plugin images are published with 1.6.0 as well as 1.9.1 kaniko version from 1.5.1 release tag. `plugins/kaniko:<release-tag>` uses 1.6.0 version while `plugins/kaniko:<release-tag>-kaniko1.9.1` uses 1.9.1 version. Similar convention is used for plugins/kaniko-ecr & plugins/kaniko-gcr images as well.
 
 ## Build
 

cmd/kaniko-acr/main.go

@@ -432,6 +432,15 @@ 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

@@ -90,10 +90,10 @@ func main() {
 			Usage:  "enable auto generation of build tags",
 			EnvVar: "PLUGIN_AUTO_TAG",
 		},
-		cli.BoolFlag{
-			Name:   "dockerconfig-override",
-			Usage:  "enable auto generation of build tags",
-			EnvVar: "PLUGIN_DOCKERCONFIG_OVERRIDE",
+		cli.StringFlag{
+			Name:   "dockerconfig",
+			Usage:  "docker json dockerconfig",
+			EnvVar: "PLUGIN_CONFIG",
 		},
 		cli.StringFlag{
 			Name:   "auto-tag-suffix",
@@ -176,6 +176,11 @@ 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.",
@@ -191,6 +196,11 @@ 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 {
@@ -201,11 +211,15 @@ func main() {
 func run(c *cli.Context) error {
 	username := c.String("username")
 	noPush := c.Bool("no-push")
-	// use the dockerconfig present at the path instead of creating one
-	configOverride := c.Bool("dockerconfig-override")
+	configOverride := c.String("dockerconfig")
 
-	// only setup auth when pushing or credentials are defined and docker config override is false
-	if (!noPush || username != "") && !configOverride {
+	// if configOverride is provided, use this for docker auth
+	if len(configOverride) > 0 {
+		if err := writeDockerCfgFile([]byte(configOverride)); err != nil {
+			return err
+		}
+	} else if !noPush || username != "" {
+		// setup auth when pushing or credentials are defined and docker config override is false
 		if err := createDockerCfgFile(username, c.String("password"), c.String("registry")); err != nil {
 			return err
 		}
@@ -233,6 +247,7 @@ 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"),
@@ -244,6 +259,9 @@ 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()
 }
@@ -266,14 +284,22 @@ func createDockerCfgFile(username, password, registry string) error {
 		registry = v1RegistryURL
 	}
 
+	authBytes := []byte(fmt.Sprintf("%s:%s", username, password))
+	encodedString := base64.StdEncoding.EncodeToString(authBytes)
+	jsonBytes := []byte(fmt.Sprintf(`{"auths": {"%s": {"auth": "%s"}}}`, registry, encodedString))
+
+	if err := writeDockerCfgFile(jsonBytes); err != nil {
+		return errors.Wrap(err, "failed to write docker config file")
+	}
+	return nil
+}
+
+// Write json bytes in the docker config file
+func writeDockerCfgFile(jsonBytes []byte) error {
 	err := os.MkdirAll(dockerPath, 0600)
 	if err != nil {
 		return errors.Wrap(err, fmt.Sprintf("failed to create %s directory", dockerPath))
 	}
-
-	authBytes := []byte(fmt.Sprintf("%s:%s", username, password))
-	encodedString := base64.StdEncoding.EncodeToString(authBytes)
-	jsonBytes := []byte(fmt.Sprintf(`{"auths": {"%s": {"auth": "%s"}}}`, registry, encodedString))
 	err = ioutil.WriteFile(dockerConfigPath, jsonBytes, 0644)
 	if err != nil {
 		return errors.Wrap(err, "failed to create docker config file")

cmd/kaniko-ecr/main.go

@@ -17,6 +17,7 @@ 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"
@@ -64,6 +65,11 @@ 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",
@@ -240,15 +246,18 @@ 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,
-		c.String("assume-role"),
-		c.String("external-id"),
+		assumeRole,
+		externalId,
 		region,
 		noPush,
 	)
@@ -267,7 +276,7 @@ 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); err != nil {
+		if err := createRepository(region, repo, registry, assumeRole, externalId); err != nil {
 			return err
 		}
 	}
@@ -277,7 +286,7 @@ func run(c *cli.Context) error {
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		if err := uploadLifeCyclePolicy(region, repo, string(contents)); err != nil {
+		if err := uploadLifeCyclePolicy(region, repo, string(contents), assumeRole, externalId); err != nil {
 			logrus.Fatal(fmt.Sprintf("error uploading ECR lifecycle policy: %v", err))
 		}
 	}
@@ -287,7 +296,7 @@ func run(c *cli.Context) error {
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		if err := uploadRepositoryPolicy(region, repo, registry, string(contents)); err != nil {
+		if err := uploadRepositoryPolicy(region, repo, registry, string(contents), assumeRole, externalId); err != nil {
 			logrus.Fatal(fmt.Sprintf("error uploading ECR lifecycle policy: %v", err))
 		}
 	}
@@ -328,12 +337,16 @@ func run(c *cli.Context) error {
 	return plugin.Exec()
 }
 
-func createDockerConfig(dockerUsername, dockerPassword, accessKey, secretKey,
+func createDockerConfig(dockerRegistry, dockerUsername, dockerPassword, accessKey, secretKey,
 	registry, assumeRole, externalId, region string, noPush bool) (*docker.Config, error) {
 	dockerConfig := docker.NewConfig()
 
 	if dockerUsername != "" {
-		dockerConfig.SetAuth(docker.RegistryV1, dockerUsername, dockerPassword)
+		// if no docker registry provided, use dockerhub by default
+		if len(dockerRegistry) == 0 {
+			dockerRegistry = docker.RegistryV1
+		}
+		dockerConfig.SetAuth(dockerRegistry, dockerUsername, dockerPassword)
 	}
 
 	if assumeRole != "" {
@@ -373,7 +386,7 @@ func createDockerConfig(dockerUsername, dockerPassword, accessKey, secretKey,
 	return dockerConfig, nil
 }
 
-func createRepository(region, repo, registry string) error {
+func createRepository(region, repo, registry, assumeRole, externalId string) error {
 	if registry == "" {
 		return fmt.Errorf("registry must be specified")
 	}
@@ -382,22 +395,29 @@ func createRepository(region, repo, registry string) error {
 		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
 
-	//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
+	if assumeRole != "" {
+		if isRegistryPublic(registry) {
+			_, createErr = getAssumeRoleEcrPublicSvc(region, assumeRole, externalId).CreateRepository(&ecrpublicv1.CreateRepositoryInput{RepositoryName: &repo})
+		} else {
+			_, createErr = getAssumeRoleEcrSvc(region, assumeRole, externalId).CreateRepository(&ecrv1.CreateRepositoryInput{RepositoryName: &repo})
+		}
 	} else {
-		svc := ecr.NewFromConfig(cfg)
-		_, createErr = svc.CreateRepository(context.TODO(), &ecr.CreateRepositoryInput{RepositoryName: &repo})
+		cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
+		if err != nil {
+			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
@@ -408,46 +428,67 @@ func createRepository(region, repo, registry string) error {
 	return nil
 }
 
-func uploadLifeCyclePolicy(region, repo, lifecyclePolicy string) (err error) {
-	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-	if err != nil {
-		return errors.Wrap(err, "failed to load aws config")
-	}
+func uploadLifeCyclePolicy(region, repo, lifecyclePolicy, assumeRole, externalId string) (err error) {
+	if assumeRole != "" {
+		input := &ecrv1.PutLifecyclePolicyInput{
+			LifecyclePolicyText: aws.String(lifecyclePolicy),
+			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)
+		svc := ecr.NewFromConfig(cfg)
 
-	input := &ecr.PutLifecyclePolicyInput{
-		LifecyclePolicyText: aws.String(lifecyclePolicy),
-		RepositoryName:      aws.String(repo),
+		input := &ecr.PutLifecyclePolicyInput{
+			LifecyclePolicyText: aws.String(lifecyclePolicy),
+			RepositoryName:      aws.String(repo),
+		}
+		_, err = svc.PutLifecyclePolicy(context.TODO(), input)
 	}
-	_, err = svc.PutLifecyclePolicy(context.TODO(), input)
 
 	return err
 }
 
-func uploadRepositoryPolicy(region, repo, registry, repositoryPolicy string) (err error) {
-	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
-	if err != nil {
-		return errors.Wrap(err, "failed to load aws config")
-	}
-
-	if isRegistryPublic(registry) {
-		svc := ecrpublic.NewFromConfig(cfg)
-
-		input := &ecrpublic.SetRepositoryPolicyInput{
-			PolicyText:     aws.String(repositoryPolicy),
-			RepositoryName: aws.String(repo),
+func uploadRepositoryPolicy(region, repo, registry, repositoryPolicy, assumeRole, externalId string) (err error) {
+	if assumeRole != "" {
+		if isRegistryPublic(registry) {
+			input := &ecrpublicv1.SetRepositoryPolicyInput{
+				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)
 		}
-		_, err = svc.SetRepositoryPolicy(context.TODO(), input)
 	} else {
-
-		svc := ecr.NewFromConfig(cfg)
-
-		input := &ecr.SetRepositoryPolicyInput{
-			PolicyText:     aws.String(repositoryPolicy),
-			RepositoryName: aws.String(repo),
+		cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(region))
+		if err != nil {
+			return errors.Wrap(err, "failed to load aws config")
+		}
+
+		if isRegistryPublic(registry) {
+			svc := ecrpublic.NewFromConfig(cfg)
+			input := &ecrpublic.SetRepositoryPolicyInput{
+				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)
 	}
 
 	return err
@@ -469,7 +510,7 @@ 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")
+		return "", "", "", errors.Wrap(err, "failed to get ECR auth: no basic auth credentials")
 	}
 	return username, password, registry, nil
 }
@@ -497,6 +538,36 @@ 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

@@ -10,6 +10,7 @@ import (
 
 func TestCreateDockerConfig(t *testing.T) {
 	got, err := createDockerConfig(
+		"",
 		"docker-username",
 		"docker-password",
 		"access-key",
@@ -34,10 +35,37 @@ 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

@@ -0,0 +1,234 @@
+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
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 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:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 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:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/amd64/kaniko-docker /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-docker"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 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:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/arm64/kaniko-docker /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-docker"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/arm64/kaniko-docker /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-docker"]

docker/docker/manifest-kaniko1.9.1.tmpl

@@ -1,4 +1,4 @@
-image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.8.1{{else}}latest-kaniko1.8.1{{/if}}
+image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.9.1{{else}}latest-kaniko1.9.1{{/if}}
 {{#if build.tags}}
 tags:
 {{#each build.tags}}
@@ -7,12 +7,12 @@ tags:
 {{/if}}
 manifests:
   -
-    image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.8.1
+    image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.9.1
     platform:
       architecture: amd64
       os: linux
   -
-    image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.8.1
+    image: plugins/kaniko:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.9.1
     platform:
       architecture: arm64
       os: linux

docker/ecr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/amd64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 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:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 
 ADD release/linux/arm64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/arm64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

docker/ecr/manifest-kaniko1.9.1.tmpl

@@ -1,4 +1,4 @@
-image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.8.1{{else}}latest-kaniko1.8.1{{/if}}
+image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.9.1{{else}}latest-kaniko1.9.1{{/if}}
 {{#if build.tags}}
 tags:
 {{#each build.tags}}
@@ -7,12 +7,12 @@ tags:
 {{/if}}
 manifests:
   -
-    image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.8.1
+    image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.9.1
     platform:
       architecture: amd64
       os: linux
   -
-    image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.8.1
+    image: plugins/kaniko-ecr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.9.1
     platform:
       architecture: arm64
       os: linux

docker/gar/Dockerfile.linux.amd64

@@ -0,0 +1,5 @@
+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.amd64.kaniko1.9.1

@@ -0,0 +1,5 @@
+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

@@ -0,0 +1,8 @@
+FROM gcr.io/kaniko-project/executor:v1.9.1
+
+ENV HOME /root
+ENV USER root
+ENV KANIKO_VERSION=1.9.1
+
+ADD release/linux/arm64/kaniko-gar /kaniko/
+ENTRYPOINT ["/kaniko/kaniko-gar"]

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

@@ -0,0 +1,5 @@
+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

@@ -0,0 +1,18 @@
+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

@@ -0,0 +1,18 @@
+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:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/amd64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 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:v1.6.0
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.6.0
+ENV KANIKO_VERSION=1.9.1
 
 ADD release/linux/arm64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

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

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.8.1
+FROM gcr.io/kaniko-project/executor:v1.9.1
 
-ENV KANIKO_VERSION=1.8.1
+ENV KANIKO_VERSION=1.9.1
 ADD release/linux/arm64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

docker/gcr/manifest-kaniko1.9.1.tmpl

@@ -1,4 +1,4 @@
-image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.8.1{{else}}latest-kaniko1.8.1{{/if}}
+image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-kaniko1.9.1{{else}}latest-kaniko1.9.1{{/if}}
 {{#if build.tags}}
 tags:
 {{#each build.tags}}
@@ -7,12 +7,12 @@ tags:
 {{/if}}
 manifests:
   -
-    image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.8.1
+    image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64-kaniko1.9.1
     platform:
       architecture: amd64
       os: linux
   -
-    image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.8.1
+    image: plugins/kaniko-gcr:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64-kaniko1.9.1
     platform:
       architecture: arm64
       os: linux

go.mod

@@ -1,6 +1,8 @@
 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
@@ -18,8 +20,6 @@ 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 1.18
+go 1.21

go.sum

@@ -43,9 +43,13 @@ 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=
@@ -76,9 +80,9 @@ 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=
@@ -93,8 +97,6 @@ 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=
@@ -103,5 +105,8 @@ 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

@@ -8,6 +8,7 @@ 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"
 )
@@ -38,6 +39,7 @@ 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
@@ -49,10 +51,16 @@ 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
 	}
 )
 
@@ -148,14 +156,15 @@ func (p Plugin) Exec() error {
 		fmt.Sprintf("--context=dir://%s", p.Build.Context),
 	}
 
-	// Set the destination repository
-	if !p.Build.NoPush {
+	// Set the destination repository only when we push or save to tarball
+	if !p.Build.NoPush || p.Build.TarPath != "" {
 		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))
@@ -212,6 +221,10 @@ 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
@@ -223,19 +236,29 @@ func (p Plugin) Exec() error {
 	}
 
 	if p.Build.DigestFile != "" && p.Artifact.ArtifactFile != "" {
-		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)
+		err = artifact.WritePluginArtifactFile(p.Artifact.RegistryType, p.Artifact.ArtifactFile, p.Artifact.Registry, p.Artifact.Repo, getDigest(p.Build.DigestFile), 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) {

kaniko_test.go

@@ -100,7 +100,16 @@ func TestBuild_AutoTags(t *testing.T) {
 			},
 		},
 		{
-			name:          "tag push",
+			name:          "beta tag push",
+			repoBranch:    "master",
+			commitRef:     "refs/tags/v1.0.0-beta.1",
+			autoTagSuffix: "",
+			expectedTags: []string{
+				"1.0.0-beta.1",
+			},
+		},
+		{
+			name:          "tag push with suffix",
 			repoBranch:    "master",
 			commitRef:     "refs/tags/v1.0.0",
 			autoTagSuffix: "linux-amd64",

pkg/artifact/artifact.go

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

pkg/output/output.go

@@ -0,0 +1,12 @@
+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

@@ -14,13 +14,16 @@ 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

@@ -15,10 +15,12 @@ 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 .