unkin-agent
9da206dc7c
PVCs and CloudNativePG Clusters need S3 buckets and backup schedules
provisioned consistently. This operator watches the
backups.unkin.net/{schedule,destination} annotations on those objects and
provisions everything needed to back them up, with no new CRDs.
- Add a PVC controller that provisions cephrgw ObjectStoreUser/Bucket/BucketAccess,
auto-generates a restic repo-password Secret and creates a k8up Schedule scoped
to the PVC via spec.backup.volumes[].persistentVolumeClaim.claimName.
- Add a CNPG Cluster controller that provisions the same bucket stack, idempotently
patches spec.backup.barmanObjectStore (leaving a user-set destinationPath alone
with a Warning event) and creates a ScheduledBackup.
- Resolve destinations through a ConfigMap lookup table; requeue until the
BucketAccess is Ready before creating schedule resources; own-reference created
resources and retain bucket data by default.
- Add schedule-mapping helpers (k8up 5-field/shortcut pass-through, CNPG 6-field
seconds-first) and deterministic, length-bounded name derivation.
- Add unit tests (schedule mapping, name derivation, destination resolution) and
envtest controller tests for both paths, wiring the external CRDs into envtest.
- Add kubebuilder-generated RBAC, a Dockerfile (distroless/nonroot), Woodpecker
lint/test/build pipelines and a tag-triggered image push to the artifactapi
docker-internal registry, plus a version-bump Makefile and deploy manifests.
125 lines
3.5 KiB
Go
125 lines
3.5 KiB
Go
/*
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Copyright 2018 The Kubernetes 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 admission
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import (
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"net/http"
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jsonpatch "gomodules.xyz/jsonpatch/v2"
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admissionv1 "k8s.io/api/admission/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// Allowed constructs a response indicating that the given operation
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// is allowed (without any patches).
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func Allowed(message string) Response {
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return ValidationResponse(true, message)
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}
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// Denied constructs a response indicating that the given operation
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// is not allowed.
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func Denied(message string) Response {
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return ValidationResponse(false, message)
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}
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// Patched constructs a response indicating that the given operation is
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// allowed, and that the target object should be modified by the given
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// JSONPatch operations.
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func Patched(message string, patches ...jsonpatch.JsonPatchOperation) Response {
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resp := Allowed(message)
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resp.Patches = patches
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return resp
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}
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// Errored creates a new Response for error-handling a request.
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func Errored(code int32, err error) Response {
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return Response{
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: false,
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Result: &metav1.Status{
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Code: code,
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Message: err.Error(),
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},
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},
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}
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}
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// ValidationResponse returns a response for admitting a request.
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func ValidationResponse(allowed bool, message string) Response {
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code := http.StatusForbidden
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reason := metav1.StatusReasonForbidden
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if allowed {
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code = http.StatusOK
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reason = ""
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}
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resp := Response{
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: allowed,
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Result: &metav1.Status{
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Code: int32(code),
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Reason: reason,
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},
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},
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}
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if len(message) > 0 {
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resp.Result.Message = message
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}
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return resp
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}
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// PatchResponseFromRaw takes 2 byte arrays and returns a new response with json patch.
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// The original object should be passed in as raw bytes to avoid the roundtripping problem
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// described in https://github.com/kubernetes-sigs/kubebuilder/issues/510.
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func PatchResponseFromRaw(original, current []byte) Response {
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patches, err := jsonpatch.CreatePatch(original, current)
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if err != nil {
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return Errored(http.StatusInternalServerError, err)
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}
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return Response{
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Patches: patches,
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: true,
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PatchType: func() *admissionv1.PatchType {
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if len(patches) == 0 {
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return nil
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}
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pt := admissionv1.PatchTypeJSONPatch
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return &pt
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}(),
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},
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}
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}
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// validationResponseFromStatus returns a response for admitting a request with provided Status object.
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func validationResponseFromStatus(allowed bool, status metav1.Status) Response {
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resp := Response{
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: allowed,
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Result: &status,
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},
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}
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return resp
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}
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// WithWarnings adds the given warnings to the Response.
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// If any warnings were already given, they will not be overwritten.
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func (r Response) WithWarnings(warnings ...string) Response {
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r.AdmissionResponse.Warnings = append(r.AdmissionResponse.Warnings, warnings...)
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return r
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}
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