patchstrategicmerge

Documentation

Overview

Package patchstrategicmerge contains a kio.Filter implementation of the kustomize strategic merge patch transformer.

Index

• type Filter
  • func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error)

Examples

• Filter

Types

type Filter

type Filter struct {
	Patch *yaml.RNode
}

Example

err := kio.Pipeline{
	Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
apiVersion: example.com/v1
kind: Foo
metadata:
  name: instance
spec:
  replicas: 3
`)}},
	Filters: []kio.Filter{Filter{
		Patch: yaml.MustParse(`
spec:
  template:
    containers:
    - image: nginx
`),
	}},
	Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
}.Execute()
if err != nil {
	log.Fatal(err)
}

Output:

apiVersion: example.com/v1
kind: Foo
metadata:
  name: instance
spec:
  replicas: 3
  template:
    containers:
    - image: nginx

func (Filter) Filter

func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error)

Filter does a strategic merge patch, which can delete nodes.