/
chart_template.go
559 lines (503 loc) · 15.6 KB
/
chart_template.go
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/*
Copyright AppsCode Inc. and Contributors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package editor
import (
"bytes"
"context"
"encoding/json"
"fmt"
"strings"
"time"
"kubepack.dev/kubepack/pkg/lib"
"kubepack.dev/lib-helm/pkg/repo"
"github.com/google/uuid"
"github.com/pkg/errors"
"gomodules.xyz/jsonpatch/v3"
"helm.sh/helm/v3/pkg/chart"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/sets"
meta_util "kmodules.xyz/client-go/meta"
"kmodules.xyz/client-go/tools/parser"
"kmodules.xyz/resource-metadata/hub/resourceeditors"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/yaml"
driversapi "x-helm.dev/apimachinery/apis/drivers/v1alpha1"
releasesapi "x-helm.dev/apimachinery/apis/releases/v1alpha1"
)
func RenderOrderTemplate(bs *lib.BlobStore, reg repo.IRegistry, order releasesapi.Order) (string, []releasesapi.ChartTemplate, error) {
var buf bytes.Buffer
var tpls []releasesapi.ChartTemplate
for _, pkg := range order.Spec.Packages {
if pkg.Chart == nil {
continue
}
f1 := &TemplateRenderer{
Registry: reg,
ChartSourceRef: releasesapi.ChartSourceRef{
Name: pkg.Chart.ChartRef.Name,
Version: pkg.Chart.Version,
SourceRef: pkg.Chart.ChartRef.SourceRef,
},
ReleaseName: pkg.Chart.ReleaseName,
Namespace: pkg.Chart.Namespace,
KubeVersion: "v1.22.0",
ValuesFile: pkg.Chart.ValuesFile,
ValuesPatch: pkg.Chart.ValuesPatch,
BucketURL: bs.Bucket,
UID: string(order.UID),
PublicURL: bs.Host,
}
err := f1.Do()
if err != nil {
return "", nil, err
}
tpl := releasesapi.ChartTemplate{
ChartSourceRef: releasesapi.ChartSourceRef{
Name: pkg.Chart.Name,
Version: pkg.Chart.Version,
SourceRef: pkg.Chart.SourceRef,
},
ReleaseName: pkg.Chart.ReleaseName,
Namespace: pkg.Chart.Namespace,
}
crds, manifestFile := f1.Result()
for _, crd := range crds {
resources, err := ListResources(pkg.Chart.ReleaseName, crd.Data)
if err != nil {
return "", nil, err
}
if len(resources) != 1 {
return "", nil, fmt.Errorf("%d crds found in %s", len(resources), crd.Filename)
}
tpl.CRDs = append(tpl.CRDs, releasesapi.BucketObject{
URL: crd.URL,
Key: crd.Key,
ResourceObject: releasesapi.ResourceObject{
Filename: crd.Filename,
Data: resources[0].Data,
},
})
}
if manifestFile != nil {
tpl.Manifest = &releasesapi.BucketFileRef{
URL: manifestFile.URL,
Key: manifestFile.Key,
}
tpl.Resources, err = ListResources(pkg.Chart.ReleaseName, manifestFile.Data)
if err != nil {
return "", nil, err
}
_, err = fmt.Fprintf(&buf, "---\n# Source: %s - %s@%s\n", f1.ChartSourceRef.SourceRef.Name, f1.ChartSourceRef.Name, f1.Version)
if err != nil {
return "", nil, err
}
_, err := buf.Write(manifestFile.Data)
if err != nil {
return "", nil, err
}
_, err = buf.WriteRune('\n')
if err != nil {
return "", nil, err
}
}
tpls = append(tpls, tpl)
}
return buf.String(), tpls, nil
}
func LoadResourceEditorModel(kc client.Client, reg repo.IRegistry, opts releasesapi.ModelMetadata) (*releasesapi.EditorTemplate, error) {
ed, ok := resourceeditors.LoadByResourceID(kc, &opts.Resource)
if !ok {
return nil, fmt.Errorf("failed to load resource editor for %+v", opts.Resource)
}
if ed.Spec.UI == nil || ed.Spec.UI.Editor == nil {
return nil, fmt.Errorf("missing editor chart for %+v", ed.Spec.Resource.GroupVersionKind())
}
return loadEditorModel(kc, reg, *ed.Spec.UI.Editor, opts)
}
func LoadEditorModel(kc client.Client, reg repo.IRegistry, chartRef releasesapi.ChartSourceRef, opts releasesapi.ModelMetadata) (*releasesapi.EditorTemplate, error) {
return loadEditorModel(kc, reg, chartRef, opts)
}
func loadEditorModel(kc client.Client, reg repo.IRegistry, chartRef releasesapi.ChartSourceRef, opts releasesapi.ModelMetadata) (*releasesapi.EditorTemplate, error) {
if chartRef.SourceRef.Namespace == "" {
ns, err := DefaultSourceRefNamespace(kc, chartRef.SourceRef.Name)
if err != nil {
return nil, err
}
chartRef.SourceRef.Namespace = ns
}
chrt, err := reg.GetChart(chartRef)
if err != nil {
return nil, err
}
var app driversapi.AppRelease
err = kc.Get(context.TODO(), client.ObjectKey{Namespace: opts.Release.Namespace, Name: opts.Release.Name}, &app)
if err != nil {
return nil, err
}
return EditorChartValueManifest(kc, &app, opts.Metadata.Release, chrt.Chart)
}
func EditorChartValueManifest(kc client.Client, app *driversapi.AppRelease, mt releasesapi.ObjectMeta, chrt *chart.Chart) (*releasesapi.EditorTemplate, error) {
selector, err := metav1.LabelSelectorAsSelector(app.Spec.Selector)
if err != nil {
return nil, err
}
var buf bytes.Buffer
resourceMap := map[string]interface{}{}
// detect apiVersion from defaultValues in chart
resourceKeys := sets.New[string](app.Spec.ResourceKeys...)
formKeys := sets.New[string](app.Spec.FormKeys...)
_, usesForm := chrt.Values["form"]
var resources []*unstructured.Unstructured
for _, gvk := range app.Spec.Components {
var list unstructured.UnstructuredList
list.SetGroupVersionKind(schema.GroupVersionKind{
Group: gvk.Group,
Version: gvk.Version,
Kind: gvk.Kind,
})
err = kc.List(context.TODO(), &list, client.MatchingLabelsSelector{Selector: selector}, client.InNamespace(mt.Namespace))
if meta.IsNoMatchError(err) {
continue // CRD type not installed, so skip it
} else if err != nil {
return nil, err
}
for idx := range list.Items {
obj := list.Items[idx]
// remove status
delete(obj.Object, "status")
rsKey, err := ResourceKey(obj.GetAPIVersion(), obj.GetKind(), mt.Name, obj.GetName())
if err != nil {
return nil, err
}
if !resourceKeys.Has(rsKey) && !formKeys.Has(rsKey) {
continue
}
resources = append(resources, &obj)
buf.WriteString("\n---\n")
data, err := yaml.Marshal(&obj)
if err != nil {
return nil, err
}
buf.Write(data)
if resourceKeys.Has(rsKey) { // ski form objects
if _, ok := resourceMap[rsKey]; ok {
return nil, fmt.Errorf("duplicate resource key %s for AppRelease %s/%s", rsKey, app.Namespace, app.Name)
}
resourceMap[rsKey] = &obj
}
}
}
s1map := map[string]int{}
s2map := map[string]int{}
s3map := map[string]int{}
for _, obj := range resources {
s1, s2, s3 := ResourceFilename(obj.GetAPIVersion(), obj.GetKind(), mt.Name, obj.GetName())
if v, ok := s1map[s1]; !ok {
s1map[s1] = 1
} else {
s1map[s1] = v + 1
}
if v, ok := s2map[s2]; !ok {
s2map[s2] = 1
} else {
s2map[s2] = v + 1
}
if v, ok := s3map[s3]; !ok {
s3map[s3] = 1
} else {
s3map[s3] = v + 1
}
}
rsfiles := make([]releasesapi.ResourceObject, 0, len(resources))
for _, obj := range resources {
s1, s2, s3 := ResourceFilename(obj.GetAPIVersion(), obj.GetKind(), mt.Name, obj.GetName())
name := s1
if s1map[s1] > 1 {
if s2map[s2] > 1 {
name = s3
} else {
name = s2
}
}
rsfiles = append(rsfiles, releasesapi.ResourceObject{
Filename: name,
Key: MustResourceKey(obj.GetAPIVersion(), obj.GetKind(), mt.Name, obj.GetName()),
Data: obj,
})
}
tpl := releasesapi.EditorTemplate{
Manifest: buf.Bytes(),
Values: &unstructured.Unstructured{
Object: map[string]interface{}{
"metadata": map[string]interface{}{
"resource": chrt.Values["metadata"].(map[string]interface{})["resource"],
"release": mt,
},
"resources": resourceMap,
},
},
Resources: rsfiles,
}
if usesForm {
// https://github.com/kubepack/lib-helm/commit/4279003342a502f328f3c9a6334f4ab5bfdf900d
if app.Spec.Release.Form != nil {
if form, err := runtime.DefaultUnstructuredConverter.ToUnstructured(app.Spec.Release.Form); err == nil {
tpl.Values.Object["form"] = form
}
}
}
return &tpl, nil
}
func GenerateResourceEditorModel(kc client.Client, reg repo.IRegistry, opts map[string]interface{}) (*unstructured.Unstructured, error) {
var spec releasesapi.ModelMetadata
err := meta_util.DecodeObject(opts, &spec)
if err != nil {
return nil, err
}
ed, ok := resourceeditors.LoadByResourceID(kc, &spec.Resource)
if !ok {
return nil, fmt.Errorf("failed to load resource editor for %+v", spec.Resource)
}
if ed.Spec.UI == nil {
return nil, fmt.Errorf("missing options and editor chart for %+v", ed.Spec.Resource.GroupVersionKind())
}
if ed.Spec.UI.Options == nil {
return nil, fmt.Errorf("missing options chart for %+v", ed.Spec.Resource.GroupVersionKind())
}
if ed.Spec.UI.Editor == nil {
return nil, fmt.Errorf("missing editor chart for %+v", ed.Spec.Resource.GroupVersionKind())
}
return generateEditorModel(kc, reg, *ed.Spec.UI.Options, *ed.Spec.UI.Editor, spec, opts)
}
func GenerateEditorModel(kc client.Client, reg repo.IRegistry, chartRef releasesapi.ChartSourceRef, opts map[string]interface{}) (*unstructured.Unstructured, error) {
var spec releasesapi.ModelMetadata
err := meta_util.DecodeObject(opts, &spec)
if err != nil {
return nil, err
}
return generateEditorModel(kc, reg, chartRef, chartRef, spec, opts)
}
func generateEditorModel(
kc client.Client,
reg repo.IRegistry,
optionsChartRef releasesapi.ChartSourceRef,
editorChartRef releasesapi.ChartSourceRef,
spec releasesapi.ModelMetadata,
opts map[string]interface{},
) (*unstructured.Unstructured, error) {
if optionsChartRef.SourceRef.Namespace == "" {
ns, err := DefaultSourceRefNamespace(kc, optionsChartRef.SourceRef.Name)
if err != nil {
return nil, err
}
optionsChartRef.SourceRef.Namespace = ns
}
if editorChartRef.SourceRef.Namespace == "" {
editorChartRef.SourceRef.Namespace = optionsChartRef.SourceRef.Namespace
}
_, usesForm := opts["form"]
var resourceKeys sets.Set[string]
if usesForm {
chrt, err := reg.GetChart(editorChartRef)
if err != nil {
return nil, errors.Wrapf(err, "failed to load resource editor chart %+v", editorChartRef)
}
if data, ok := chrt.Chart.Metadata.Annotations["meta.x-helm.dev/resource-keys"]; ok && data != "" {
resourceKeys = sets.New[string](strings.Split(data, ",")...)
} else {
return nil, fmt.Errorf("editor chart %+v is missing annotation key meta.x-helm.dev/editor", editorChartRef)
}
}
f1 := &EditorModelGenerator{
Registry: reg,
ChartSourceRef: optionsChartRef,
ReleaseName: spec.Metadata.Release.Name,
Namespace: spec.Metadata.Release.Namespace,
KubeVersion: "v1.22.0",
Values: opts,
}
err := f1.Do(kc)
if err != nil {
return nil, err
}
resourceMap := map[string]interface{}{}
_, manifest := f1.Result()
err = parser.ProcessResources(manifest, func(ri parser.ResourceInfo) error {
rsKey, err := ResourceKey(ri.Object.GetAPIVersion(), ri.Object.GetKind(), spec.Metadata.Release.Name, ri.Object.GetName())
if err != nil {
return err
}
// values
if !usesForm || resourceKeys.Has(rsKey) {
resourceMap[rsKey] = ri.Object
}
return nil
})
if err != nil {
return nil, err
}
model := &unstructured.Unstructured{
Object: map[string]interface{}{
"metadata": opts["metadata"],
"resources": resourceMap,
},
}
if form, ok := opts["form"]; ok {
model.Object["form"] = form
}
return model, err
}
func RenderResourceEditorChart(kc client.Client, reg repo.IRegistry, opts map[string]interface{}) (string, *releasesapi.ChartTemplate, error) {
var spec releasesapi.ModelMetadata
err := meta_util.DecodeObject(opts, &spec)
if err != nil {
return "", nil, err
}
ed, ok := resourceeditors.LoadByResourceID(kc, &spec.Resource)
if !ok {
return "", nil, fmt.Errorf("failed to load resource editor for %+v", spec.Resource)
}
if ed.Spec.UI == nil || ed.Spec.UI.Editor == nil {
return "", nil, fmt.Errorf("missing editor chart for %+v", ed.Spec.Resource.GroupVersionKind())
}
return renderChart(kc, reg, *ed.Spec.UI.Editor, spec, opts)
}
func RenderChart(kc client.Client, reg repo.IRegistry, chartRef releasesapi.ChartSourceRef, opts map[string]interface{}) (string, *releasesapi.ChartTemplate, error) {
var spec releasesapi.ModelMetadata
err := meta_util.DecodeObject(opts, &spec)
if err != nil {
return "", nil, err
}
return renderChart(kc, reg, chartRef, spec, opts)
}
func renderChart(
kc client.Client,
reg repo.IRegistry,
chartRef releasesapi.ChartSourceRef,
spec releasesapi.ModelMetadata,
opts map[string]interface{},
) (string, *releasesapi.ChartTemplate, error) {
if chartRef.SourceRef.Namespace == "" {
ns, err := DefaultSourceRefNamespace(kc, chartRef.SourceRef.Name)
if err != nil {
return "", nil, err
}
chartRef.SourceRef.Namespace = ns
}
f1 := &EditorModelGenerator{
Registry: reg,
ChartSourceRef: chartRef,
Version: chartRef.Version,
ReleaseName: spec.Release.Name,
Namespace: spec.Release.Namespace,
KubeVersion: "v1.22.0",
Values: opts,
RefillMetadata: true,
}
err := f1.Do(kc)
if err != nil {
return "", nil, err
}
tpl := releasesapi.ChartTemplate{
ChartSourceRef: f1.ChartSourceRef,
ReleaseName: f1.ReleaseName,
Namespace: f1.Namespace,
}
crds, manifest := f1.Result()
for _, crd := range crds {
resources, err := parser.ListResources(crd.Data)
if err != nil {
return "", nil, err
}
if len(resources) != 1 {
return "", nil, fmt.Errorf("%d crds found in %s", len(resources), crd.Name)
}
tpl.CRDs = append(tpl.CRDs, releasesapi.BucketObject{
ResourceObject: releasesapi.ResourceObject{
Filename: crd.Name,
Data: resources[0].Object,
},
})
}
if manifest != nil {
tpl.Resources, err = ListResources(spec.Release.Name, manifest)
if err != nil {
return "", nil, err
}
}
return string(manifest), &tpl, nil
}
func CreateChartOrder(reg repo.IRegistry, opts releasesapi.ChartOrder) (*releasesapi.Order, error) {
// editor chart
obj := opts.ChartSourceFlatRef.ToAPIObject()
chrt, err := reg.GetChart(obj)
if err != nil {
return nil, err
}
originalValues, err := json.Marshal(chrt.Values)
if err != nil {
return nil, err
}
modifiedValues, err := json.Marshal(opts.Values)
if err != nil {
return nil, err
}
patch, err := jsonpatch.CreatePatch(originalValues, modifiedValues)
if err != nil {
return nil, err
}
patchData, err := json.Marshal(patch)
if err != nil {
return nil, err
}
order := releasesapi.Order{
TypeMeta: metav1.TypeMeta{
APIVersion: releasesapi.GroupVersion.String(),
Kind: releasesapi.ResourceKindOrder,
}, ObjectMeta: metav1.ObjectMeta{
Name: opts.ReleaseName,
Namespace: opts.Namespace,
UID: types.UID(uuid.New().String()),
CreationTimestamp: metav1.NewTime(time.Now()),
},
Spec: releasesapi.OrderSpec{
Packages: []releasesapi.PackageSelection{
{
Chart: &releasesapi.ChartSelection{
ChartRef: releasesapi.ChartRef{
Name: opts.Name,
SourceRef: obj.SourceRef,
},
Version: opts.Version,
ReleaseName: opts.ReleaseName,
Namespace: opts.Namespace,
Bundle: nil,
ValuesFile: "values.yaml",
ValuesPatch: &runtime.RawExtension{
Raw: patchData,
},
Resources: nil,
WaitFors: nil,
},
},
},
KubeVersion: "",
},
}
return &order, err
}