lifecycle-build task

A Concourse task for building OCI images using the Cloud Native Buildpacks lifecycle

Usage

There is a task implementation for each of the Cloud Foundry CNB builders

• cloudfoundry/cnb:tiny -> bstick12/lifecycle-build-task:tiny
• cloudfoundry/cnb:bionic -> bstick12/lifecycle-build-task:bionic
• cloudfoundry/cnb:cflinuxfs3 -> bstick12/lifecycle-build-task:cflinuxfs3

You can see the implementations at lifecycle-build-task

You provide the task configuration as follows:

image_resource

Point your task as the lifecycle-build-task image resource

 image_resource:
    type: registry-image
    source:
      repository: bstick12/lifecycle-build-task
      # Change this if you want to use a different CNB builder e.g. bionic, cflinuxfs3
      tag: tiny

params

Next, any of the following parameters can be specified:

• REPOSITORY: Required. The name of the repository that you want to build e.g bstick12/built-with-cnb-lifecycle-task
• TAG: Optional. The tag value for the image. Defaults to latest
• REGISTRY_USERNAME: Required. The username to authenticate with when pushing
• REGISTRY_PASSWORD: Required. The password to use when authenticating
• CACHE: Optional: Directory that will be used by CNB to cache layers. Task must have caches with directory path specified.
• CONTEXT: Required. The directory name of the input source you want to build
• DEBUG: Optional. Log debug output of the task. Defaults to false
• BUILD_ENV (default empty): a hash of environment variables that will be passed to the CNB builder

inputs

There are no required inputs - your task should just list each artifact it needs as an input. Typically this is in close correlation with $CONTEXT:

params:
  CONTEXT: git-my-source

inputs:
- name: git-my-source

run

Your task should run the lifecycle-build-task executable:

run:
  path: lifecycle-build-task

Example

The example below builds the goflake-server using the cloudfoundry/cnb:tiny builder

resources:
- name: git-goflake-server
  type: git
  icon: "github-circle"
  source:
    uri: https://github.com/bstick12/goflake-server

jobs:
- name: build-goflake-server-tiny
  plan:
  - get: git-goflake-server
    trigger: true
  - task: goflake-server-lifecycle
    config:
      platform: linux
      # The image resource configuration for the lifecycle-build task
      image_resource:
        type: registry-image
        source:
          repository: bstick12/lifecycle-build-task
          # Change this if you want to use a different CNB builder e.g. bionic, cflinuxfs3
          tag: tiny
      params:
        REPOSITORY: bstick12/goflake-server-lifecycle
        TAG: tiny
        CONTEXT: git-goflake-server
        REGISTRY_USERNAME: ((docker-hub-username))
        REGISTRY_PASSWORD: ((docker-hub-password))
        CACHE: .cache
      inputs:
      - name: git-goflake-server
      run:
        path: lifecycle-build-task
      caches:
      - path: .cache

Developing

There is Makefile provided to build and test the lifecycle-build-task locally