Compare commits

...

7 Commits

Author SHA1 Message Date
OP (oppenheimer) a091f2ad04 ECR auth for push-only operation + code refactoring (#144) 2025-04-25 18:11:30 +05:30
OP (oppenheimer) af2add0aa5 Update pipeline drone-kaniko-harness (#143) 2025-04-09 19:24:48 +05:30
OP (oppenheimer) 58bd727c07 feat: [CI-16588]: Add support to PLUGIN_TAR_PATH, PLUGIN_SOURCE_TAR_PATH and PLUGIN_PUSH_ONLY to kaniko-ecr (#141)
* Add support for tar-path, source-tar-path and push-only operations

* Updated cmd/kaniko-ecr/main.go

* Updated cmd/kaniko-ecr/main.go

* Update cmd/kaniko-ecr/main.go
2025-03-24 21:31:18 +05:30
ci-reporunner a73b8ee28d Update pipeline drone-kaniko-harness (#142)
Co-authored-by: ompragash.viswanathan@harness.io <ompragash.viswanathan@harness.io>
2025-03-20 19:10:13 +05:30
OP (oppenheimer) b826c7f408 feat: [CI-16392]: Authenticate And Pull Private Base Images when NO_PUSH is enabled (#140) 2025-03-06 20:32:35 +05:30
ci-reporunner e56198f84c Create pipeline drone-kaniko-harness (#136) 2025-03-04 19:18:44 +05:30
Devansh Mathur d6153866df feat: [CI-16330]: Adding default OutputFile as DRONE_OUTPUT. (#139)
* Adding default OutputFile as DRONE_OUTPUT.

* Removing if checks and optimizing setting up of default OutputFile as DRONE_OUTPUT.
2025-03-03 18:05:21 +05:30
7 changed files with 875 additions and 12 deletions
+14
View File
@@ -0,0 +1,14 @@
inputSet:
name: event-PR
identifier: eventPR
orgIdentifier: default
projectIdentifier: Drone_Plugins
pipeline:
identifier: dronekanikoharness
properties:
ci:
codebase:
build:
type: PR
spec:
number: <+trigger.prNumber>
+14
View File
@@ -0,0 +1,14 @@
inputSet:
name: event-Push
identifier: eventPush
orgIdentifier: default
projectIdentifier: Drone_Plugins
pipeline:
identifier: dronekanikoharness
properties:
ci:
codebase:
build:
type: branch
spec:
branch: <+trigger.branch>
+14
View File
@@ -0,0 +1,14 @@
inputSet:
name: event-Tag
identifier: eventTag
orgIdentifier: default
projectIdentifier: Drone_Plugins
pipeline:
identifier: dronekanikoharness
properties:
ci:
codebase:
build:
type: tag
spec:
tag: <+trigger.tag>
+656
View File
@@ -0,0 +1,656 @@
pipeline:
name: drone-kaniko-harness
identifier: dronekanikoharness
projectIdentifier: Drone_Plugins
orgIdentifier: default
tags: {}
properties:
ci:
codebase:
connectorRef: GitHub_Drone_Org
repoName: drone-kaniko
build: <+input>
sparseCheckout: []
stages:
- parallel:
- stage:
name: linux-amd64
identifier: linuxamd64
description: ""
type: CI
spec:
cloneCodebase: true
caching:
enabled: false
paths: []
platform:
os: Linux
arch: Amd64
runtime:
type: Cloud
spec: {}
execution:
steps:
- step:
type: Run
name: Build Binary
identifier: Build
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: golang:1.22.4
shell: Sh
command: |-
go test ./...
sh scripts/build.sh
- parallel:
- step:
type: Plugin
name: BuildAndPushDockerTag
identifier: BuildAndPushDockerTag
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/docker
settings:
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
repo: plugins/kaniko<+matrix.image>
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.amd64
auto_tag: "true"
auto_tag_suffix: linux-amd64
daemon_off: "false"
when:
stageStatus: Success
condition: <+codebase.build.type> == "tag"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
- "-acr"
repo:
- docker
- gcr
- gar
- ecr
- acr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: ""
repo: acr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gcr"
repo: acr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-gar"
repo: acr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
- image: "-ecr"
repo: acr
- image: "-acr"
repo: docker
- image: "-acr"
repo: gcr
- image: "-acr"
repo: gar
- image: "-acr"
repo: ecr
nodeName: _<+matrix.repo>
- step:
type: Plugin
name: BuildAndPushDockerTag_Kaniko
identifier: BuildAndPushDockerTag_Kaniko
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/docker
settings:
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
repo: plugins/kaniko<+matrix.image>
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.amd64.kaniko1.9.1
auto_tag: "true"
auto_tag_suffix: linux-amd64-kaniko1.9.1
daemon_off: "false"
when:
stageStatus: Success
condition: <+codebase.build.type> == "tag"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
repo:
- docker
- gcr
- gar
- ecr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
nodeName: <+matrix.repo>
- parallel:
- step:
type: BuildAndPushDockerRegistry
name: BuildAndPushDockerBranch
identifier: BuildAndPushDockerBranch
spec:
connectorRef: Plugins_Docker_Hub_Connector
repo: plugins/kaniko<+matrix.image>
tags:
- linux-amd64
caching: false
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.amd64
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
- "-acr"
repo:
- docker
- gcr
- gar
- ecr
- acr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: ""
repo: acr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gcr"
repo: acr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-gar"
repo: acr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
- image: "-ecr"
repo: acr
- image: "-acr"
repo: docker
- image: "-acr"
repo: gcr
- image: "-acr"
repo: gar
- image: "-acr"
repo: ecr
nodeName: <+matrix.repo>
- step:
type: BuildAndPushDockerRegistry
name: BuildAndPushDockerBranch_Kaniko
identifier: BuildAndPushDockerBranch_Kaniko
spec:
connectorRef: Plugins_Docker_Hub_Connector
repo: plugins/kaniko<+matrix.image>
tags:
- linux-amd64-kaniko1.9.1
caching: false
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.amd64.kaniko1.9.1
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
repo:
- docker
- gcr
- gar
- ecr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
nodeName: _<+matrix.repo>
when:
pipelineStatus: Success
- stage:
name: linux-arm64
identifier: linuxarm64
description: ""
type: CI
spec:
cloneCodebase: true
caching:
enabled: false
paths: []
platform:
os: Linux
arch: Arm64
runtime:
type: Cloud
spec: {}
execution:
steps:
- step:
type: Run
name: Build Binary
identifier: Build_and_Test
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: golang:1.22.4
shell: Sh
command: |-
go test ./...
sh scripts/build.sh
- parallel:
- step:
type: Plugin
name: BuildAndPushDockerTag
identifier: BuildAndPushDockerTag
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/docker
settings:
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
repo: plugins/kaniko<+matrix.image>
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.arm64
auto_tag: "true"
auto_tag_suffix: linux-arm64
daemon_off: "false"
when:
stageStatus: Success
condition: <+codebase.build.type> == "tag"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
- "-acr"
repo:
- docker
- gcr
- gar
- ecr
- acr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: ""
repo: acr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gcr"
repo: acr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-gar"
repo: acr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
- image: "-ecr"
repo: acr
- image: "-acr"
repo: docker
- image: "-acr"
repo: gcr
- image: "-acr"
repo: gar
- image: "-acr"
repo: ecr
nodeName: _<+matrix.repo>
- step:
type: Plugin
name: BuildAndPushDockerTag_Kaniko
identifier: BuildAndPushDockerTag_Kaniko
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/docker
settings:
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
repo: plugins/kaniko<+matrix.image>
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.arm64.kaniko1.9.1
auto_tag: "true"
auto_tag_suffix: linux-arm64-kaniko1.9.1
daemon_off: "false"
when:
stageStatus: Success
condition: <+codebase.build.type> == "tag"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
repo:
- docker
- gcr
- gar
- ecr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
nodeName: _<+matrix.repo>
- parallel:
- step:
type: BuildAndPushDockerRegistry
name: BuildAndPushDockerBranch
identifier: BuildAndPushDockerBranch
spec:
connectorRef: Plugins_Docker_Hub_Connector
repo: plugins/kaniko<+matrix.image>
tags:
- linux-arm64
caching: false
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.arm64
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
- "-acr"
repo:
- docker
- gcr
- gar
- ecr
- acr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: ""
repo: acr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gcr"
repo: acr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-gar"
repo: acr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
- image: "-ecr"
repo: acr
- image: "-acr"
repo: docker
- image: "-acr"
repo: gcr
- image: "-acr"
repo: gar
- image: "-acr"
repo: ecr
nodeName: <+matrix.repo>
- step:
type: BuildAndPushDockerRegistry
name: BuildAndPushDockerBranch_Kaniko
identifier: BuildAndPushDockerBranch_Kaniko
spec:
connectorRef: Plugins_Docker_Hub_Connector
repo: plugins/kaniko<+matrix.image>
tags:
- linux-arm64-kaniko1.9.1
caching: false
dockerfile: docker/<+matrix.repo>/Dockerfile.linux.arm64.kaniko1.9.1
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch"
strategy:
matrix:
image:
- ""
- "-gcr"
- "-gar"
- "-ecr"
repo:
- docker
- gcr
- gar
- ecr
exclude:
- image: ""
repo: gcr
- image: ""
repo: gar
- image: ""
repo: ecr
- image: "-gcr"
repo: docker
- image: "-gcr"
repo: gar
- image: "-gcr"
repo: ecr
- image: "-gar"
repo: docker
- image: "-gar"
repo: gcr
- image: "-gar"
repo: ecr
- image: "-ecr"
repo: docker
- image: "-ecr"
repo: gcr
- image: "-ecr"
repo: gar
nodeName: _<+matrix.repo>
when:
pipelineStatus: Success
- stage:
name: Manifest
identifier: Manifest
description: ""
type: CI
spec:
cloneCodebase: true
caching:
enabled: false
paths: []
platform:
os: Linux
arch: Amd64
runtime:
type: Cloud
spec: {}
execution:
steps:
- parallel:
- step:
type: Plugin
name: Manifest
identifier: Manifest
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/manifest
settings:
auto_tag: "true"
spec: docker/<+matrix.repo>/manifest.tmpl
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
ignore_missing: "true"
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch" || <+codebase.build.type> == "tag"
strategy:
matrix:
repo:
- docker
- gcr
- gar
- ecr
- acr
nodeName: manifest_<+matrix.repo>
- step:
type: Plugin
name: Manifest_kaniko191
identifier: Manifest_kaniko
spec:
connectorRef: Plugins_Docker_Hub_Connector
image: plugins/manifest
settings:
auto_tag: "false"
spec: docker/<+matrix.repo>/manifest-kaniko1.9.1.tmpl
username: drone
password: <+secrets.getValue("Plugins_Docker_Hub_Pat")>
ignore_missing: "true"
when:
stageStatus: Success
condition: <+codebase.build.type> == "branch" || <+codebase.build.type> == "tag"
strategy:
matrix:
repo:
- docker
- gcr
- gar
- ecr
nodeName: manifest_<+matrix.repo>
when:
pipelineStatus: Success
allowStageExecutions: true
+11 -4
View File
@@ -480,25 +480,32 @@ func setupAuth(tenantId, clientId, cert,
return "", fmt.Errorf("registry must be specified")
}
if noPush {
return "", nil
}
// case of client secret or cert based auth
if clientId != "" {
// only setup auth when pushing or credentials are defined
token, publicUrl, err := getACRToken(subscriptionId, tenantId, clientId, clientSecret, cert, registry)
if err != nil {
if noPush {
logrus.Warnf("NO_PUSH mode: failed to fetch ACR Token: %v", err)
return "", nil
}
return "", errors.Wrap(err, "failed to fetch ACR Token")
}
// setup docker config for azure registry and base image docker registry
if err := setDockerAuth(username, token, registry, dockerUsername, dockerPassword, dockerRegistry); err != nil {
if noPush {
logrus.Warnf("NO_PUSH mode: failed to create docker config: %v", err)
return "", nil
}
return "", errors.Wrap(err, "failed to create docker config")
}
return publicUrl, nil
} else {
if noPush {
return "", nil
}
return "", fmt.Errorf("managed authentication is not supported")
}
}
+159
View File
@@ -14,6 +14,7 @@ import (
"github.com/aws/aws-sdk-go-v2/service/ecr"
"github.com/aws/aws-sdk-go-v2/service/ecrpublic"
awsv1 "github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"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"
@@ -29,6 +30,8 @@ import (
kaniko "github.com/drone/drone-kaniko"
"github.com/drone/drone-kaniko/pkg/artifact"
"github.com/drone/drone-kaniko/pkg/docker"
"github.com/google/go-containerregistry/pkg/authn"
"github.com/google/go-containerregistry/pkg/crane"
)
const (
@@ -403,6 +406,21 @@ func main() {
Usage: "OIDC token for assuming role via web identity",
EnvVar: "PLUGIN_OIDC_TOKEN_ID",
},
cli.StringFlag{
Name: "tar-path",
Usage: "Set this flag to save the image as a tarball at path",
EnvVar: "PLUGIN_TAR_PATH, PLUGIN_DESTINATION_TAR_PATH",
},
cli.StringFlag{
Name: "source-tar-path",
Usage: "Set this flag for the source tarball during push operations.",
EnvVar: "PLUGIN_SOURCE_TAR_PATH",
},
cli.BoolFlag{
Name: "push-only",
Usage: "Specify if the operation is push-only",
EnvVar: "PLUGIN_PUSH_ONLY",
},
}
if err := app.Run(os.Args); err != nil {
@@ -415,10 +433,21 @@ func run(c *cli.Context) error {
registry := c.String("registry")
region := c.String("region")
noPush := c.Bool("no-push")
pushOnly := c.Bool("push-only")
assumeRole := c.String("assume-role")
externalId := c.String("external-id")
oidcToken := c.String("oidc-token-id")
// Validate flags
if noPush && pushOnly {
return fmt.Errorf("no-push and push-only flags cannot be used together")
}
// Handle push-only operation
if pushOnly {
return handlePushOnly(c)
}
// setup docker config for azure registry and base image docker registry
err := setDockerAuth(
c.String("docker-registry"),
@@ -521,6 +550,9 @@ func run(c *cli.Context) error {
IgnorePaths: c.StringSlice("ignore-paths"),
ImageFSExtractRetry: c.Int("image-fs-extract-retry"),
ImageDownloadRetry: c.Int("image-download-retry"),
TarPath: c.String("tar-path"),
SourceTarPath: c.String("source-tar-path"),
PushOnly: c.Bool("push-only"),
},
Artifact: kaniko.Artifact{
Tags: c.StringSlice("tags"),
@@ -846,3 +878,130 @@ func getOidcCreds(oidcToken, assumeRole string) (string, string, string, error)
// Return the credentials
return *result.Credentials.AccessKeyId, *result.Credentials.SecretAccessKey, *result.Credentials.SessionToken, nil
}
func createECRSession(region, accessKey, secretKey, sessionToken string) *ecrv1.ECR {
sess := session.Must(session.NewSession(&awsv1.Config{
Region: awsv1.String(region),
Credentials: credentials.NewStaticCredentials(
accessKey,
secretKey,
sessionToken,
),
}))
return ecrv1.New(sess)
}
func getECRCredentials(region, registry, assumeRole, externalId, accessKey, secretKey, oidcToken string) (string, string, error) {
if assumeRole != "" && oidcToken != "" {
// For OIDC auth with assume role
awsAccessKey, awsSecretKey, awsSessionToken, err := getOidcCreds(oidcToken, assumeRole)
if err != nil {
return "", "", fmt.Errorf("failed to get OIDC credentials: %w", err)
}
// Create ECR session and get auth info
svc := createECRSession(region, awsAccessKey, awsSecretKey, awsSessionToken)
username, password, _, err := getAuthInfo(svc)
if err != nil {
return "", "", fmt.Errorf("failed to get ECR credentials: %w", err)
}
return username, password, nil
} else if assumeRole != "" {
// For assume role auth
username, password, _, err := getAssumeRoleCreds(region, assumeRole, externalId, "")
if err != nil {
return "", "", fmt.Errorf("failed to get ECR credentials: %w", err)
}
return username, password, nil
} else if accessKey != "" && secretKey != "" {
// For direct credentials
sess := session.Must(session.NewSession(&awsv1.Config{
Region: awsv1.String(region),
Credentials: credentials.NewStaticCredentials(
accessKey,
secretKey,
"",
),
}))
svc := ecrv1.New(sess)
username, password, _, err := getAuthInfo(svc)
if err != nil {
return "", "", fmt.Errorf("failed to get ECR credentials: %w", err)
}
return username, password, nil
} else {
// For IAM role auth (default credentials)
sess := session.Must(session.NewSession(&awsv1.Config{
Region: awsv1.String(region),
}))
svc := ecrv1.New(sess)
username, password, _, err := getAuthInfo(svc)
if err != nil {
return "", "", fmt.Errorf("failed to get ECR credentials: %w", err)
}
return username, password, nil
}
}
func handlePushOnly(c *cli.Context) error {
sourceTarPath := c.String("source-tar-path")
if sourceTarPath == "" {
return fmt.Errorf("source_tar_path is required when push_only is set")
}
if _, err := os.Stat(sourceTarPath); os.IsNotExist(err) {
return fmt.Errorf("image tarball does not exist at path: %s", sourceTarPath)
}
repo := c.String("repo")
registry := c.String("registry")
if repo == "" || registry == "" {
return fmt.Errorf("repository and registry must be specified for push-only operation")
}
// Load the image from the tarball
img, err := crane.Load(sourceTarPath)
if err != nil {
return fmt.Errorf("failed to load image from tarball: %v", err)
}
// Get ECR credentials using the common function
username, password, err := getECRCredentials(
c.String("region"),
registry,
c.String("assume-role"),
c.String("external-id"),
c.String("access-key"),
c.String("secret-key"),
c.String("oidc-token-id"),
)
if err != nil {
return err
}
// Setup crane auth
opts := []crane.Option{
crane.WithAuth(&authn.Basic{
Username: username,
Password: password,
}),
}
// Push for each tag
tags := c.StringSlice("tags")
if len(tags) == 0 {
tags = []string{"latest"}
}
for _, tag := range tags {
dest := fmt.Sprintf("%s/%s:%s", registry, repo, tag)
if err := crane.Push(img, dest, opts...); err != nil {
return fmt.Errorf("failed to push image to %s: %v", dest, err)
}
fmt.Printf("Successfully pushed image to %s\n", dest)
}
return nil
}
+7 -8
View File
@@ -483,14 +483,13 @@ func (p Plugin) Exec() error {
}
}
if p.Output.OutputFile != "" {
var tarPath string
if p.Build.TarPath != "" {
tarPath = getTarPath(p.Build.TarPath)
}
if err = output.WritePluginOutputFile(p.Output.OutputFile, getDigest(p.Build.DigestFile), tarPath); err != nil {
fmt.Fprintf(os.Stderr, "failed to write plugin output file at path: %s with error: %s\n", p.Output.OutputFile, err)
}
p.Output.OutputFile = os.Getenv("DRONE_OUTPUT")
var tarPath string
if p.Build.TarPath != "" {
tarPath = getTarPath(p.Build.TarPath)
}
if err = output.WritePluginOutputFile(p.Output.OutputFile, getDigest(p.Build.DigestFile), tarPath); 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