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deployment_patch.go
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deployment_patch.go
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package main
import (
"log"
"os"
"time"
"github.com/forbearing/k8s/deployment"
"github.com/forbearing/k8s/util/signals"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
)
func Deployment_Patch() {
var (
deployFile = "../../testdata/examples/deployment-patch.yaml"
strategicYamlFile = "../../testdata/examples/deployment-patch-strategic.yaml"
strategicJsonFile = "../../testdata/examples/deployment-patch-strategic.json"
jsontypeYamlFile = "../../testdata/examples/deployment-patch-jsontype.yaml"
jsontypeJsonFile = "../../testdata/examples/deployment-patch-jsontype.json"
deployName = "mydep-patch"
)
ctx := signals.NewSignalContext()
handler := deployment.NewOrDie(ctx, "", namespace)
original, err := handler.Apply(deployFile)
if err != nil {
log.Fatal(err)
}
modified := original.DeepCopy()
handler.WaitReady(deployName)
{
log.Println("1.1 **JSON Patch** patch data is a filename and the file content is yaml document")
if _, err := handler.Patch(original, jsontypeYamlFile, types.JSONPatchType); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("1.2 **JSON Patch** patch data is a filename and the file content is json document")
if _, err := handler.Patch(original, jsontypeJsonFile, types.JSONPatchType); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("1.3 **Strategic Merge Patch** patch data is a filename and the file content is yaml document")
if _, err := handler.Patch(original, strategicYamlFile); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("1.4 **Strategic Merge Patch** patch data is a filename and the json content is json document")
if _, err := handler.Patch(original, strategicJsonFile); err != nil {
log.Fatal(err)
}
log.Println("1.5 **JSON Merge Patch** patch data is a filename and the file content is yaml document")
if _, err := handler.Patch(original, strategicYamlFile, types.MergePatchType); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("1.6 **JSON Merge Patch** patch data is a filename and the json content is json document")
if _, err := handler.Patch(original, strategicJsonFile, types.MergePatchType); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
}
{
log.Println("2.1 **Default to Strategic Merge Patch** patch data is []byte and the content is yaml document")
var data []byte
if data, err = os.ReadFile(strategicYamlFile); err != nil {
log.Fatal(err)
}
if _, err := handler.Patch(original, data); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("2.2 **Default to Strategic Merge Patch** patch data is []byte and the content is json document")
if data, err = os.ReadFile(strategicJsonFile); err != nil {
log.Fatal(err)
}
if _, err := handler.Patch(original, data); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
}
{
log.Println("3. **Default to Strategic Merge Patch** patch data is *appsv1.Deployment")
*modified.Spec.Replicas += 1
if _, err := handler.Patch(original, modified); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("4. **Default to Strategic Merge Patch** patch data is appsv1.Deployment")
*modified.Spec.Replicas += 1
if _, err := handler.Patch(original, *modified); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("5. **Default To Strategic Merge Patch** patch data is map[string]interface{}")
handler.Apply(deployFile)
unstructMap := make(map[string]interface{})
if unstructMap, err = runtime.DefaultUnstructuredConverter.ToUnstructured(modified); err != nil {
log.Fatal(err)
}
if _, err := handler.Patch(original, unstructMap); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("6. **Default to Strategic Merge Patch** patch data is *unstructObj.Unstructured")
handler.Apply(deployFile)
unstructObj := &unstructured.Unstructured{Object: unstructMap}
if _, err := handler.Patch(original, unstructObj); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("7. **Default to Strategic Merge Patch** patch data is unstructObj.Unstructured")
handler.Apply(deployFile)
if _, err := handler.Patch(original, *unstructObj); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("8.1 **Default to Strategic Merge Patch** patch data is runtime.Object(convert from *appsv1.Deployment)")
handler.Apply(deployFile)
object := runtime.Object(modified)
if _, err := handler.Patch(original, object); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
log.Println("8.2 **Default to Strategic Merge Patch** patch data is runtime.Object(convert from *unstructured.Unstructured)")
handler.Apply(deployFile)
object = runtime.Object(unstructObj)
if _, err := handler.Patch(original, object); err != nil {
log.Fatal(err)
}
handler.WaitReady(deployName)
time.Sleep(time.Second * 5)
handler.Delete(deployName)
}
// Output
//2022/09/09 14:06:28 1.1 **JSON Patch** patch data is a filename and the file content is yaml document
//2022/09/09 14:06:31 1.2 **JSON Patch** patch data is a filename and the file content is json document
//2022/09/09 14:06:34 1.3 **Strategic Merge Patch** patch data is a filename and the file content is yaml document
//2022/09/09 14:06:40 1.4 **Strategic Merge Patch** patch data is a filename and the json content is json document
//2022/09/09 14:06:40 1.5 **JSON Merge Patch** patch data is a filename and the file content is yaml document
//2022/09/09 14:06:48 1.6 **JSON Merge Patch** patch data is a filename and the json content is json document
//2022/09/09 14:06:48 2.1 **Default to Strategic Merge Patch** patch data is []byte and the content is yaml document
//2022/09/09 14:06:48 2.2 **Default to Strategic Merge Patch** patch data is []byte and the content is json document
//2022/09/09 14:06:48 3. **Default to Strategic Merge Patch** patch data is *appsv1.Deployment
//2022/09/09 14:06:56 4. **Default to Strategic Merge Patch** patch data is appsv1.Deployment
//2022/09/09 14:07:04 5. **Default To Strategic Merge Patch** patch data is map[string]interface{}
//2022/09/09 14:07:13 6. **Default to Strategic Merge Patch** patch data is *unstructObj.Unstructured
//2022/09/09 14:07:13 7. **Default to Strategic Merge Patch** patch data is unstructObj.Unstructured
//2022/09/09 14:07:19 8.1 **Default to Strategic Merge Patch** patch data is runtime.Object(convert from *appsv1.Deployment)
//2022/09/09 14:07:19 8.2 **Default to Strategic Merge Patch** patch data is runtime.Object(convert from *unstructured.Unstructured)
}