mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-11 07:30:24 +00:00
77 lines
2.7 KiB
Go
77 lines
2.7 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
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.
|
|
*/
|
|
|
|
// It's possible that kustomize's features will be vendored into
|
|
// the kubernetes/kubernetes repo and made available to kubectl
|
|
// commands, while at the same time the kustomize program will
|
|
// continue to exist as an independent CLI. Vendoring snapshots
|
|
// would be taken just before a kubectl release.
|
|
//
|
|
// This creates a problem in that freestanding-kustomize depends on
|
|
// (for example):
|
|
//
|
|
// https://github.com/kubernetes/apimachinery/
|
|
// tree/master/pkg/util/yaml
|
|
//
|
|
// It vendors that package into
|
|
// sigs.k8s.io/kustomize/vendor/k8s.io/apimachinery/
|
|
//
|
|
// Whereas kubectl-kustomize would have to depend on the "staging"
|
|
// version of this code, located at
|
|
//
|
|
// https://github.com/kubernetes/kubernetes/
|
|
// blob/master/staging/src/k8s.io/apimachinery/pkg/util/yaml
|
|
//
|
|
// which is "vendored" via symlinks:
|
|
// k8s.io/kubernetes/vendor/k8s.io/apimachinery
|
|
// is a symlink to
|
|
// ../../staging/src/k8s.io/apimachinery
|
|
//
|
|
// The staging version is the canonical, under-development
|
|
// version of the code that kubectl depends on, whereas the packages
|
|
// at kubernetes/apimachinery are periodic snapshots of staging made
|
|
// for outside tools to depend on.
|
|
//
|
|
// apimachinery isn't the only package that poses this problem, just
|
|
// using it as a specific example.
|
|
//
|
|
// The kubectl binary cannot vendor in kustomize code that in
|
|
// turn vendors in the non-staging packages.
|
|
//
|
|
// One way to fix some of this would be to copy code - a hard fork.
|
|
// This has all the problems associated with a hard forking.
|
|
//
|
|
// Another way would be to break the kustomize repo into three:
|
|
//
|
|
// (1) kustomize - repo with the main() function,
|
|
// vendoring (2) and (3).
|
|
//
|
|
// (2) kustomize-libs - packages used by (1) with no
|
|
// apimachinery dependence.
|
|
//
|
|
// (3) kustomize-k8sdeps - A thin code layer that depends
|
|
// on (vendors) apimachinery to provide thin implementations
|
|
// to interfaces used in (2).
|
|
//
|
|
// The kubectl repo would then vendor from (2) only, and have
|
|
// a local implementation of (3). With that in mind, it's clear
|
|
// that (3) doesn't have to be a repo; the kustomize version of
|
|
// the thin layer can live directly in (1).
|
|
//
|
|
// This package is the code in (3), meant for kustomize.
|
|
|
|
package k8sdeps
|