catalog/gcs

Google Cloud Storage Tasks

These Tasks are for copying to and from GCS buckets from Pipelines.

These Tasks do a similar job to the GCS PipelineResource and are intended as its replacement. This is part of our plan to offer replacement Tasks for Pipeline Resources as well as document those replacements.

gcs-download

A Task that fetches files or directories from a GCS bucket and puts them on a Workspace.

Workspaces

• credentials: A workspace that contains a service account key as a JSON file. This workspace should be populated from a Secret in your TaskRuns and PipelineRuns.
• output: A workspace for this Task to copy the files from GCS in to.

Parameters

• path: The path to the file or directory that will be written to the output workspace. (required)
• location: The address, including "gs://", of the bucket you'd like to copy from. (required)
• typeDir: Set this to "true" if the object you are copying is a directory. (default: "false")
• serviceAccountPath: The path to the service account credential file in your credentials workspace. (default: "service_account.json")

gcs-upload

A Task that uploads files or directories from a Workspace to a GCS bucket.

Workspaces

• credentials: A workspace that contains a service account key as a JSON file. This workspace should be populated from a Secret in your TaskRuns and PipelineRuns.
• source: A workspace where files will be uploaded from.

Parameters

• path: The path to files or directories relative to the source workspace that you'd like to upload. (required)
• location: The address (including "gs://") where you'd like to upload files to. (required)
• serviceAccountPath: The path to the service account credential file in your credentials workspace. (default: "service_account.json")

gcs-create-bucket

A Task that creates a new GCS bucket.

Workspaces

• credentials: A workspace that contains a service account key as a JSON file. This workspace should be populated from a Secret in your TaskRuns and PipelineRuns.

Parameters

• bucketName: The name of the bucket (including "gs://") to create. (required)
• project: The project with which your bucket will be associated. (required)
• storageClass: The storage class for the new bucket. STANDARD, NEARLINE, COLDLINE, or ARCHIVE. (default: "STANDARD")
• region: The region, dual-region, or multi-region for the new bucket. (default: "")
• uniformAccess: Set this to "true" if the bucket should be created with bucket-level permissions instead of Access Control Lists. (default: "false")
• serviceAccountPath: The path to the service account credential file in your credentials workspace. (default: "service_account.json")

gcs-delete-bucket

A Task that deletes a GCS bucket.

Workspaces

• credentials: A workspace that contains a service account key as a JSON file. This workspace should be populated from a Secret in your TaskRuns and PipelineRuns.

Parameters

• bucketName: The name of the bucket (including "gs://") to create. (required)
• serviceAccountPath: The path to the service account credential file in your credentials workspace. (default: "service_account.json")

gcs-generic

A Task that allows users customize and extend the gsutil command line based on their needs.

Workspaces

• credentials: A workspace that contains a service account key as a JSON file. This workspace should be populated from a Secret in your TaskRuns and PipelineRuns.

Parameters

• command: The command line that you would like to enter to the workspace. (required)
• options: The extended command line that you would like to enter. (required)
• serviceAccountPath: The path to the service account credential file in your credentials workspace. (default: "service_account.json")
• image: The google cloud image that will be used in steps. (default: "google/cloud-sdk")

Usage

gcs-download

This pipeline uses the gcs-download Task to fetch a directory.

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: cat-file
spec:
  workspaces:
  - name: source
    mountPath: /source
  params:
  - name: filePath
    description: Path to file inside "source" to cat.
    default: "README.md"
  steps:
  - name: cat-readme
    image: ubuntu
    script: cat "$(workspaces.source.path)/$(params.filePath)"
---
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: cat-file
spec:
  workspaces:
  - name: gcs-credentials
    description: A secret containing a gcloud service account key JSON file.
  - name: shared-workspace
    description: The GCS location will be copied into this workspace.
  tasks:
  - name: copy-files
    taskRef:
      name: gcs-download
    workspaces:
    - name: credentials
      workspace: gcs-credentials
    - name: output
      workspace: shared-workspace
    params:
    - name: path
      value: foo
    - name: location
      value: gs://this-is-not-a-real-bucket
    - name: typeDir
      value: "true"
  - name: print-readme
    taskRef:
      name: cat-readme
    runAfter:
    - copy-files # required to ensure copy occurs before cat
    workspaces:
    - name: source
      workspace: shared-workspace
    params:
    - name: filePath
      value: "foo/test.txt"

This pipeline can be used as the following PipelineRun does.

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: workspace-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 500Mi
---
apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  name: cat-file-pr
spec:
  pipelineRef:
    name: cat-file
  workspaces:
  - name: gcs-credentials
    secret:
      secretName: my-gcs-credentials
      defaultMode: 0400
  - name: shared-workspace
    persistentVolumeClaim:
      claimName: workspace-pvc

gcs-upload

This TaskRun uses the gcs-upload Task to upload a file from a ConfigMap.

kind: ConfigMap
apiVersion: v1
metadata:
  name: test-input-data
data:
  test_file.txt: "Hello, world!"
---
apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: upload-configmap-file-to-gcs
spec:
  taskRef:
    name: gcs-upload
  workspaces:
  - name: credentials
    secret:
      secretName: my-gcs-credentials
      defaultMode: 0400
  - name: source
    configMap:
      name: test-input-data

gcs-create-bucket

This TaskRun uses the gcs-create-bucket Task to create a new bucket in the singapore region.

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: test-create-a-bucket
spec:
  taskRef:
    name: gcs-create-bucket
  workspaces:
  - name: credentials
    secret:
      secretName: my-gcs-credentials
      defaultMode: 0400
  params:
  - name: bucketName
    value: gs://my-fancy-new-test-bucket-12345
  - name: project
    value: my-test-project
  - name: region
    value: ASIA-SOUTHEAST1

gcs-delete-bucket

This TaskRun uses the gcs-delete-bucket Task to delete the bucket created in the previous example.

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: test-delete-a-bucket
spec:
  taskRef:
    name: gcs-delete-bucket
  workspaces:
  - name: credentials
    secret:
      secretName: my-gcs-credentials
      defaultMode: 0400
  params:
  - name: bucketName
    value: gs://my-fancy-new-test-bucket-12345

gcs-generic

This TaskRun uses the gcs-generic Task to list all the objects in the directory.

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: gcs-generic-taskrun
spec:
  taskRef:
    name: gcs-generic
  workspaces:
  - name: credentials
    secret: 
      secretName: my-gcs-credentials
  params:
  - name: command
    value: ls
  - name: options
    value: 
     - "-l"
     - "gs://tekton-releases"