mirror of
https://github.com/fluxcd/flux2.git
synced 2025-10-28 05:04:48 +08:00
102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
/*
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Copyright 2021 The Flux authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"bufio"
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"bytes"
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"context"
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"fmt"
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"os"
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"path/filepath"
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"time"
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"github.com/fluxcd/pkg/ssa"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"sigs.k8s.io/cli-utils/pkg/kstatus/polling"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
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"sigs.k8s.io/kustomize/api/konfig"
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"github.com/fluxcd/flux2/pkg/manifestgen/kustomization"
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)
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// Apply is the equivalent of 'kubectl apply --server-side -f'.
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// If the given manifest is a kustomization.yaml, then apply performs the equivalent of 'kubectl apply --server-side -k'.
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func Apply(ctx context.Context, kubeConfigPath string, kubeContext string, manifestPath string) (string, error) {
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cfg, err := KubeConfig(kubeConfigPath, kubeContext)
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if err != nil {
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return "", err
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}
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restMapper, err := apiutil.NewDynamicRESTMapper(cfg)
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if err != nil {
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return "", err
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}
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kubeClient, err := client.New(cfg, client.Options{Mapper: restMapper})
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if err != nil {
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return "", err
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}
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kubePoller := polling.NewStatusPoller(kubeClient, restMapper)
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resourceManager := ssa.NewResourceManager(kubeClient, kubePoller, ssa.Owner{
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Field: "flux",
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Group: "fluxcd.io",
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})
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objs, err := readObjects(manifestPath)
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if err != nil {
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return "", err
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}
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if len(objs) < 1 {
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return "", fmt.Errorf("no Kubernetes objects found at: %s", manifestPath)
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}
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if err := ssa.SetNativeKindsDefaults(objs); err != nil {
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return "", err
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}
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changeSet, err := resourceManager.ApplyAllStaged(ctx, objs, false, time.Minute)
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if err != nil {
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return "", err
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}
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return changeSet.String(), nil
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}
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func readObjects(manifestPath string) ([]*unstructured.Unstructured, error) {
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if _, err := os.Stat(manifestPath); err != nil {
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return nil, err
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}
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if filepath.Base(manifestPath) == konfig.DefaultKustomizationFileName() {
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resources, err := kustomization.Build(filepath.Dir(manifestPath))
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if err != nil {
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return nil, err
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}
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return ssa.ReadObjects(bytes.NewReader(resources))
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}
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ms, err := os.Open(manifestPath)
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if err != nil {
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return nil, err
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}
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defer ms.Close()
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return ssa.ReadObjects(bufio.NewReader(ms))
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}
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