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Hello Koreo

This is the "Hello Koreo" example from the Quick Start guide. This example demonstrates a simple Workflow that is triggered off of a Kubernetes Deployment. It sets a hello label on the triggering Deployment's metadata.

hello-koreo Workflow​

apiVersion: koreo.dev/v1beta1
kind: Workflow
metadata:
  name: hello-koreo
spec:
  crdRef:
    apiGroup: apps
    version: v1
    kind: Deployment
  steps:
    - label: get_labels
      ref:
        kind: ValueFunction
        name: get-labels
      inputs:
        name: =parent.metadata.name
    - label: set_labels
      ref:
        kind: ResourceFunction
        name: set-deployment-labels
      inputs:
        name: =parent.metadata.name
        namespace: =parent.metadata.namespace
        labels: =steps.get_labels.labels

get-labels ValueFunction​

apiVersion: koreo.dev/v1beta1
kind: ValueFunction
metadata:
  name: get-labels
spec:
  return:
    labels:
      hello: =inputs.name
---
apiVersion: koreo.dev/v1beta1
kind: FunctionTest
metadata:
  name: get-labels-test
spec:
  functionRef:
    kind: ValueFunction
    name: get-labels

  inputs:
    name: test

  testCases:
    - expectReturn:
        labels:
          hello: test

set-deployment-labels ResourceFunction​

apiVersion: koreo.dev/v1beta1
kind: ResourceFunction
metadata:
  name: set-deployment-labels
spec:
  apiConfig:
    apiVersion: apps/v1
    kind: Deployment
    name: =inputs.name
    namespace: =inputs.namespace
    owned: false

  resource:
    metadata:
      labels: =inputs.labels

  create:
    enabled: false
---
apiVersion: koreo.dev/v1beta1
kind: FunctionTest
metadata:
  name: set-deployment-labels-test
spec:
  functionRef:
    kind: ResourceFunction
    name: set-deployment-labels

  inputs:
    name: test-deployment
    namespace: default
    labels:
      foo: bar
      baz: qux

  currentResource:
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: test-deployment
      namespace: default

  testCases:
    - label: Sets labels
      expectResource:
        apiVersion: apps/v1
        kind: Deployment
        metadata:
          name: test-deployment
          namespace: default
          labels:
            foo: bar
            baz: qux

Example Trigger Deployment​

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
        - name: nginx
          image: nginx:latest
          ports:
            - containerPort: 80