upsert-resource

README

upsert-resource KRM function

Overview

Insert a KRM resource, or if the resource already exists, update the existing resource.

Usage

This is a re-implementation of the baseline upsert-resource KRM function. Unlike the original, this version was designed to be used declaratively, particularly in the mutation pipeline of KPT packages.

FunctionConfig

The KRM function supposed to be configured via a ConfigMap with a single mandatory resources key in it. The value of that field should contain the YAML representation of the resources to be upserted.

Example

The upsert-resource KRM function is primarily useful in the context of a PackageVariant resource, e.g.:

apiVersion: config.porch.kpt.dev/v1alpha1
kind: PackageVariant
metadata:
  name: example
spec:
  upstream:
    repo: catalog
    package: blueprint
    revision: v1
  downstream:
    repo: deployments
  pipeline:
    mutators:
    - image: ghcr.io/kispaljr/upsert-resource:v1
      configMap:
        resources: |-
          apiVersion: v1
          kind: ConfigMap
          metadata:
            name: test-data-1
            namespace: default
          data:
            inserted-key: test-value
          ---
          apiVersion: v1
          kind: ConfigMap
          metadata:
            name: test-data-2
            namespace: default
          data:
            inserted-key: test-value

The above example will insert or update the test-data-1 and test-data-2 ConfigMaps into the downstream package.