jtigger

This is a response to: https://stackoverflow.com/questions/75115089/ytt-append-array-items-together-but-remove-duplicates

_

jtigger

apiVersion: kapp.k14s.io/v1alpha1
kind: Config
rebaseRules:
- path: [data]
  type: copy
  sources: [existing, new]
  resourceMatchers:
  - kindNamespaceNameMatcher: {kind: ConfigMap, namespace: kube-system, name: antrea-ca}

jtigger

load("@ytt:struct", "struct")
load("@ytt:yaml", "yaml")

# `raw_yaml()` makes an editable copy of `node`
#   warning: all nodes are scrubbed of attached annotations and code.
def raw_yaml(node):
  return yaml.decode(yaml.encode(node))
end

def key_or_index(target, part):

jtigger

#!/usr/bin/env bash

KIND=$(yq --raw-output '.kind' <(cat $1))

case ${KIND} in
  "Config")
read -r -d '' TEMPLATE <<'EOF'
#@ load("@ytt:data", "data")
---
apiVersion: imgpkg.k14s.io/v1alpha1

jtigger

// on classpath: https://repo1.maven.org/maven2/org/yaml/snakeyaml/1.27/snakeyaml-1.27.jar
package emptynode;

import org.yaml.snakeyaml.Yaml;
import java.util.Map;

public class ParseYaml {
  public static void main(String[] args) {
    Yaml yaml = new Yaml();
    Map<String, Object> obj = yaml.load("---\nfoo: #@ data.value\n");

jtigger

#@ load("@ytt:data", "data")

apps:
#@ for app in data.values.traefik.ingress_routes:
- #@ app
#@ end

jtigger

load("@ytt:overlay", "overlay")

# `k8s_resource` yields matcher function that returns subset matching the Kubernetes resource parameters.
def k8s_resource(apiVersion, kind, name):
  return overlay.subset({"apiVersion": apiVersion, "kind": kind, "metadata": {"name": name}})
end

# `shape` yields matcher function that returns True when the structure of `right` matches that of `left` 
#   (ignoring leaves).
# exactly :: when `True`, array items in `left` must match exactly in the order they appear in `right`

jtigger

#@overlay/match by=lambda i,l,r: True
---
metadata:
  namespace: foos

jtigger

---
clients:
- client1:
    secret: blah1
- client2:
    secret: blah2

#@ load("@ytt:overlay", "overlay")
#@overlay/match by=overlay.all
---

jtigger

1. Create a starter test

   package main
   
   import (
     . "github.com/onsi/ginkgo"
     . "github.com/onsi/gomega"

)