fix: [CI-14845]: support for build args which has comma seperated values

* feat: [Ci-14242]: add oidc support for ecr

* fix: [CI-14242]: error handling for oidc kakniko-ecr

.drone.yml

@@ -11,7 +11,7 @@ platform:
 
 steps:
 - name: build
-  image: golang:1.22
+  image: golang:1.22.4
   commands:
   - go test ./...
   - sh scripts/build.sh
@@ -178,7 +178,7 @@ pool:
 
 steps:
 - name: build
-  image: golang:1.22
+  image: golang:1.22.4
   commands:
   - go test ./...
   - sh scripts/build.sh

README.md

@@ -4,6 +4,12 @@ Drone kaniko plugin uses [kaniko](https://github.com/GoogleContainerTools/kaniko
 
 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.
 
+Run the following script to install git-leaks support to this repo.
+```
+chmod +x ./git-hooks/install.sh
+./git-hooks/install.sh
+```
+
 ## Build
 
 Build the binaries with the following commands:

cmd/kaniko-ecr/custom_string_slice.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"strings"
+)
+
+// CustomStringSliceFlag is like a regular StringSlice flag but with
+// semicolon as a delimiter
+type CustomStringSliceFlag struct {
+	Value []string
+}
+
+func (f *CustomStringSliceFlag) GetValue() []string {
+	if f.Value == nil {
+		return make([]string, 0)
+	}
+	return f.Value
+}
+
+func (f *CustomStringSliceFlag) String() string {
+	if f.Value == nil {
+		return ""
+	}
+	return strings.Join(f.Value, ";")
+}
+
+func (f *CustomStringSliceFlag) Set(v string) error {
+	for _, s := range strings.Split(v, ";") {
+		s = strings.TrimSpace(s)
+		f.Value = append(f.Value, s)
+	}
+	return nil
+}

cmd/kaniko-ecr/main.go

@@ -7,6 +7,7 @@ import (
 	"io/ioutil"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/aws/aws-sdk-go-v2/aws"
 	"github.com/aws/aws-sdk-go-v2/config"
@@ -17,6 +18,7 @@ import (
 	"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/aws-sdk-go/service/sts"
 	"github.com/aws/smithy-go"
 	"github.com/hashicorp/go-version"
 	"github.com/joho/godotenv"
@@ -35,6 +37,7 @@ const (
 	secretKeyEnv     string = "AWS_SECRET_ACCESS_KEY"
 	ecrPublicDomain  string = "public.ecr.aws"
 	kanikoVersionEnv string = "KANIKO_VERSION"
+	sessionKeyEnv    string = "AWS_SESSION_TOKEN"
 
 	oneDotEightVersion string = "1.8.0"
 	defaultDigestFile  string = "/kaniko/digest-file"
@@ -122,6 +125,17 @@ func main() {
 			Usage:  "build args",
 			EnvVar: "PLUGIN_BUILD_ARGS",
 		},
+		cli.GenericFlag{
+			Name:   "args-new",
+			Usage:  "build args new",
+			EnvVar: "PLUGIN_BUILD_ARGS_NEW",
+			Value:  new(CustomStringSliceFlag),
+		},
+		cli.BoolFlag{
+			Name:   "plugin-multiple-build-agrs",
+			Usage:  "plugin multiple build agrs",
+			EnvVar: "PLUGIN_MULTIPLE_BUILD_ARGS",
+		},
 		cli.StringFlag{
 			Name:   "target",
 			Usage:  "build target",
@@ -384,6 +398,11 @@ func main() {
 			Usage:  "Number of retries for downloading base images.",
 			EnvVar: "PLUGIN_IMAGE_DOWNLOAD_RETRY",
 		},
+		cli.StringFlag{
+			Name:   "oidc-token-id",
+			Usage:  "OIDC token for assuming role via web identity",
+			EnvVar: "PLUGIN_OIDC_TOKEN_ID",
+		},
 	}
 
 	if err := app.Run(os.Args); err != nil {
@@ -398,6 +417,7 @@ func run(c *cli.Context) error {
 	noPush := c.Bool("no-push")
 	assumeRole := c.String("assume-role")
 	externalId := c.String("external-id")
+	oidcToken := c.String("oidc-token-id")
 
 	// setup docker config for azure registry and base image docker registry
 	err := setDockerAuth(
@@ -411,6 +431,7 @@ func run(c *cli.Context) error {
 		externalId,
 		region,
 		noPush,
+		oidcToken,
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to create docker config")
@@ -454,6 +475,8 @@ func run(c *cli.Context) error {
 			AutoTagSuffix:               c.String("auto-tag-suffix"),
 			ExpandTag:                   c.Bool("expand-tag"),
 			Args:                        c.StringSlice("args"),
+			ArgsNew:                     c.Generic("args-new").(*CustomStringSliceFlag).GetValue(),
+			IsMultipleBuildArgs:         c.Bool("plugin-multiple-build-agrs"),
 			Target:                      c.String("target"),
 			Repo:                        fmt.Sprintf("%s/%s", c.String("registry"), c.String("repo")),
 			Mirrors:                     c.StringSlice("registry-mirrors"),
@@ -518,7 +541,7 @@ func run(c *cli.Context) error {
 }
 
 func setDockerAuth(dockerRegistry, dockerUsername, dockerPassword, accessKey, secretKey,
-	registry, assumeRole, externalId, region string, noPush bool) error {
+	registry, assumeRole, externalId, region string, noPush bool, oidcToken string) error {
 	dockerConfig := docker.NewConfig()
 	credentials := []docker.RegistryCredentials{}
 	// set docker credentials for base image registry
@@ -531,7 +554,24 @@ func setDockerAuth(dockerRegistry, dockerUsername, dockerPassword, accessKey, se
 		credentials = append(credentials, pullFromRegistryCreds)
 	}
 
-	if assumeRole != "" {
+	if assumeRole != "" && oidcToken != "" {
+		oidcAccessKey, oidcSecretKey, oidcSessionKey, err := getOidcCreds(oidcToken, assumeRole)
+		if err != nil {
+			return err
+		}
+
+		_ = os.Setenv(accessKeyEnv, oidcAccessKey)
+		_ = os.Setenv(secretKeyEnv, oidcSecretKey)
+		_ = os.Setenv(sessionKeyEnv, oidcSessionKey)
+
+		// kaniko-executor >=1.8.0 does not require additional cred helper logic for ECR,
+		// as it discovers ECR repositories automatically and acts accordingly.
+		if isKanikoVersionBelowOneDotEight(os.Getenv(kanikoVersionEnv)) {
+			dockerConfig.SetCredHelper(ecrPublicDomain, "ecr-login")
+			dockerConfig.SetCredHelper(registry, "ecr-login")
+		}
+
+	} else if assumeRole != "" {
 		var err error
 		username, password, registry, err := getAssumeRoleCreds(region, assumeRole, externalId, "")
 		if err != nil {
@@ -771,3 +811,37 @@ func isKanikoVersionBelowOneDotEight(v string) bool {
 
 	return currVer.LessThan(oneEightVer)
 }
+
+func getOidcCreds(oidcToken, assumeRole string) (string, string, string, error) {
+	// Create a new session
+	sess, err := session.NewSession()
+	if err != nil {
+		return "", "", "", fmt.Errorf("failed to create AWS session: %w", err)
+	}
+
+	// Create a new STS client
+	svc := sts.New(sess)
+
+	// Prepare the input parameters for the STS call
+	duration := int64(time.Hour / time.Second)
+	input := &sts.AssumeRoleWithWebIdentityInput{
+		RoleArn:          aws.String(assumeRole),
+		RoleSessionName:  aws.String("kaniko-ecr-oidc"),
+		WebIdentityToken: aws.String(oidcToken),
+		DurationSeconds:  aws.Int64(duration),
+	}
+
+	// Call the AssumeRoleWithWebIdentity function
+	result, err := svc.AssumeRoleWithWebIdentity(input)
+	if err != nil {
+		return "", "", "", fmt.Errorf("failed to assume role with web identity: %w", err)
+	}
+
+	// Check if credentials exist in the result
+	if result.Credentials == nil {
+		return "", "", "", errors.New("no credentials returned by AssumeRoleWithWebIdentity")
+	}
+
+	// Return the credentials
+	return *result.Credentials.AccessKeyId, *result.Credentials.SecretAccessKey, *result.Credentials.SessionToken, nil
+}

docker/acr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.0
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.0
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
 ENV HOME /root
 ENV USER root
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 
 ADD release/linux/arm64/kaniko-ecr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-ecr"]

docker/gar/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 ADD release/linux/amd64/kaniko-gar /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gar/Dockerfile.linux.arm64

@@ -1,8 +1,8 @@
-FROM gcr.io/kaniko-project/executor:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 
 ADD release/linux/arm64/kaniko-gar /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gar"]

docker/gcr/Dockerfile.linux.amd64

@@ -1,5 +1,5 @@
-FROM gcr.io/kaniko-project/executor:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 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:v1.20.1
+FROM gcr.io/kaniko-project/executor:v1.23.2
 
 ENV HOME /root
 ENV USER root
-ENV KANIKO_VERSION=1.20.1
+ENV KANIKO_VERSION=1.23.2
 
 ADD release/linux/arm64/kaniko-gcr /kaniko/
 ENTRYPOINT ["/kaniko/kaniko-gcr"]

git-hooks/README.md

@@ -0,0 +1,8 @@
+This document explains on how to install certain git hooks globally for all repositories in your machine.
+
+Step 1: git clone https://github.com/drone/drone-kaniko.git
+Step 2: cd git-hooks
+Step 3: Run install.sh
+
+"install.sh" script will create .git_template in the user directory and will put the git hook and its dependent scripts in it. Along with the .git_template folder, it will add 2 sections "init" and "hooks boolean" in the .gitconfig file in the same user's root directory.
+After running "install.sh" if you create/clone a new git repository then all the hooks will get install automatically for the git repository. In case of existing git repository copy the contents of ~/.git_template/hooks into the .git/hooks directory of existing git repository.

git-hooks/hooks/git-leaks-pre-commit.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+#Helper script to be used as a pre-commit hook.
+
+echo "This hook checks for any secrets getting pushed as part of commit. If you feel that scan is false positive. \
+Then add the exclusion in .gitleaksignore file. For more info visit: https://github.com/zricethezav/gitleaks"
+
+GIT_LEAKS_PRE_COMMIT=s$(git config --bool hook.pre-commit.gitleak)
+
+echo "INFO: Scanning Commits information for any GIT LEAKS"
+gitleaks protect --staged -v --exit-code=100
+STATUS=$?
+if [ $STATUS = 100  ]; then
+    echo "WARNING: GIT LEAKS has detected sensitive information in your changes. Please remove them or add them (IF NON-SENSITIVE) in .gitleaksignore file."
+else
+    exit 0
+fi

git-hooks/hooks/git-leaks.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+#Helper script to be used as a pre-commit hook.
+
+echo "This hook checks for any secrets getting pushed as part of commit. If you feel that scan is false positive. \
+Then add the exclusion in .gitleaksignore file. For more info visit: https://github.com/zricethezav/gitleaks"
+
+GIT_LEAKS=$(git config --bool hook.pre-push.gitleaks)
+
+echo "INFO: Scanning Commits information for any GIT LEAKS"
+gitleaks detect -s ./ --log-level=debug --log-opts=-1 -v
+STATUS=$?
+if [ $STATUS != 0  ]; then
+    echo "WARNING: GIT LEAKS has detected sensitive information in your changes. Please remove them or add them (IF NON-SENSITIVE) in .gitleaksignore file."
+    exit $STATUS
+else
+    exit 0
+fi

git-hooks/hooks/pre-commit

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+GL_SCRIPT_PATH="$HOME/.git_template/hooks/git-leaks-pre-commit.sh"
+
+pushd `dirname $0` > /dev/null && cd ../.. && BASEDIR=$(pwd -L) && popd > /dev/null
+BASENAME=`basename $0`
+
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+    against=HEAD
+else
+    #Initial commit : diff against an empty tree object
+    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+fi
+
+GIT_LEAKS_PRE_COMMIT=hook.pre-commit.gitleaks
+if [ "`git config $GIT_LEAKS_PRE_COMMIT`" == "false" ]
+then
+    echo -e '\033[0;31m' checking git leaks is disabled - to enable: '\033[0;37m'git config --unset $GIT_LEAKS_PRE_COMMIT '\033[0m'
+    echo -e '\033[0;34m' checking git leaks  ... to enable: '\033[0;37m'git config --add $GIT_LEAKS_PRE_COMMIT true '\033[0m'
+else
+    echo -e '\033[0;34m' checking for git leaks...
+    [ -f "${GL_SCRIPT_PATH}" ] && . ${GL_SCRIPT_PATH} || echo "ERROR: Hook Script Not Found..." && exit 404
+fi

git-hooks/hooks/pre-push

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+GL_SCRIPT_PATH="$HOME/.git_template/hooks/git-leaks.sh"
+
+pushd `dirname $0` > /dev/null && cd ../.. && BASEDIR=$(pwd -L) && popd > /dev/null
+BASENAME=`basename $0`
+
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+    against=HEAD
+else
+    #Initial commit : diff against an empty tree object
+    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+fi
+
+GIT_LEAKS=hook.pre-push.gitleaks
+if [ "`git config $GIT_LEAKS`" == "false" ]
+then
+    echo -e '\033[0;31m' checking git leaks is disabled - to enable: '\033[0;37m'git config --unset $GIT_LEAKS '\033[0m'
+    echo -e '\033[0;34m' checking git leaks  ... to enable: '\033[0;37m'git config --add $GIT_LEAKS true '\033[0m'
+else
+    echo -e '\033[0;34m' checking for git leaks...
+    [ -f "${GL_SCRIPT_PATH}" ] && . ${GL_SCRIPT_PATH} || echo "ERROR: Hook Script Not Found..." && exit 404
+fi

git-hooks/install.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+#Function to check if package is installed or not
+#args: $1: Name of the Package
+function check_package_installed() {
+  LOCAL_PACKAGE_NAME=$1
+  echo "Checking if $LOCAL_PACKAGE_NAME is installed or not..."
+  brew list $LOCAL_PACKAGE_NAME
+  if [ "$?" -eq 1 ];then
+    echo "Installing $LOCAL_PACKAGE_NAME package..."
+    brew install $LOCAL_PACKAGE_NAME
+  fi
+}
+
+function create_git_template() {
+    cd $BASEDIR
+    mkdir -p ~/.git_template/hooks
+    git config --global init.templatedir ${GIT_TEMPLATE}
+    git config --global --add $GIT_LEAKS true
+    git config --global --add $GIT_LEAKS_PRE_COMMIT true
+    find hooks/ -type f -exec cp "{}" ~/.git_template/hooks \;
+    #cp -f hooks/* ~/.git_template/hooks
+    cat ~/.gitconfig
+}
+
+GIT_TEMPLATE="~/.git_template"
+GIT_LEAKS=hook.pre-push.gitleaks
+GIT_LEAKS_PRE_COMMIT=hook.pre-commit.gitleaks
+
+pushd `dirname $0` && BASEDIR=$(pwd -L) && popd
+
+echo This script will install hooks that run scripts that could be updated without notice.
+
+while true; do
+    read -p "Do you wish to install these hooks?" yn
+    case $yn in
+        [Yy]* ) check_package_installed "gitleaks";
+                break;;
+        [Nn]* ) exit;;
+        * ) echo "Please answer yes or no.";;
+    esac
+done
+
+create_git_template

go.mod

@@ -47,4 +47,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-go 1.22.0
+go 1.22.4

kaniko.go

@@ -16,30 +16,32 @@ import (
 type (
 	// Build defines Docker build parameters.
 	Build struct {
-		DroneCommitRef   string   // Drone git commit reference
-		DroneRepoBranch  string   // Drone repo branch
-		Dockerfile       string   // Docker build Dockerfile
-		Context          string   // Docker build context
-		Tags             []string // Docker build tags
-		AutoTag          bool     // Set this to auto detect tags from git commits and semver-tagged labels
-		AutoTagSuffix    string   // Suffix to append to the auto detect tags
-		ExpandTag        bool     // Set this to expand the `Tags` into semver-tagged labels
-		Args             []string // Docker build args
-		Target           string   // Docker build target
-		Repo             string   // Docker build repository
-		Mirrors          []string // Docker repository mirrors
-		Labels           []string // Label map
-		SkipTlsVerify    bool     // Docker skip tls certificate verify for registry
-		SnapshotMode     string   // Kaniko snapshot mode
-		EnableCache      bool     // Whether to enable kaniko cache
-		CacheRepo        string   // Remote repository that will be used to store cached layers
-		CacheTTL         int      // Cache timeout in hours
-		DigestFile       string   // Digest file location
-		NoPush           bool     // Set this flag if you only want to build the image, without pushing to a registry
-		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
+		DroneCommitRef      string   // Drone git commit reference
+		DroneRepoBranch     string   // Drone repo branch
+		Dockerfile          string   // Docker build Dockerfile
+		Context             string   // Docker build context
+		Tags                []string // Docker build tags
+		AutoTag             bool     // Set this to auto detect tags from git commits and semver-tagged labels
+		AutoTagSuffix       string   // Suffix to append to the auto detect tags
+		ExpandTag           bool     // Set this to expand the `Tags` into semver-tagged labels
+		Args                []string // Docker build args
+		ArgsNew             []string // docker build args with comma seperated values
+		IsMultipleBuildArgs bool     // env variable for fallback for docker build args
+		Target              string   // Docker build target
+		Repo                string   // Docker build repository
+		Mirrors             []string // Docker repository mirrors
+		Labels              []string // Label map
+		SkipTlsVerify       bool     // Docker skip tls certificate verify for registry
+		SnapshotMode        string   // Kaniko snapshot mode
+		EnableCache         bool     // Whether to enable kaniko cache
+		CacheRepo           string   // Remote repository that will be used to store cached layers
+		CacheTTL            int      // Cache timeout in hours
+		DigestFile          string   // Digest file location
+		NoPush              bool     // Set this flag if you only want to build the image, without pushing to a registry
+		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
 
 		Cache                       bool   // Enable or disable caching during the build process.
 		CacheDir                    string // Directory to store cached layers.
@@ -202,8 +204,14 @@ func (p Plugin) Exec() error {
 	}
 
 	// Set the build arguments
-	for _, arg := range p.Build.Args {
-		cmdArgs = append(cmdArgs, fmt.Sprintf("--build-arg=%s", arg))
+	if p.Build.IsMultipleBuildArgs {
+		for _, arg := range p.Build.ArgsNew {
+			cmdArgs = append(cmdArgs, "--build-arg", arg)
+		}
+	} else {
+		for _, arg := range p.Build.Args {
+			cmdArgs = append(cmdArgs, "--build-arg", arg)
+		}
 	}
 	// Set the labels
 	for _, label := range p.Build.Labels {
@@ -222,7 +230,7 @@ func (p Plugin) Exec() error {
 	}
 
 	if p.Build.SnapshotMode != "" {
-		cmdArgs = append(cmdArgs, fmt.Sprintf("--snapshotMode=%s", p.Build.SnapshotMode))
+		cmdArgs = append(cmdArgs, fmt.Sprintf("--snapshot-mode=%s", p.Build.SnapshotMode))
 	}
 
 	if p.Build.EnableCache {