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.
102 lines
3.0 KiB
Go
102 lines
3.0 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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"context"
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"encoding/json"
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"fmt"
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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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type multiMutating []Handler
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func (hs multiMutating) Handle(ctx context.Context, req Request) Response {
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patches := []jsonpatch.JsonPatchOperation{}
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warnings := []string{}
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for _, handler := range hs {
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resp := handler.Handle(ctx, req)
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if !resp.Allowed {
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return resp
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}
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if resp.PatchType != nil && *resp.PatchType != admissionv1.PatchTypeJSONPatch {
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return Errored(http.StatusInternalServerError,
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fmt.Errorf("unexpected patch type returned by the handler: %v, only allow: %v",
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resp.PatchType, admissionv1.PatchTypeJSONPatch))
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}
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patches = append(patches, resp.Patches...)
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warnings = append(warnings, resp.Warnings...)
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}
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var err error
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marshaledPatch, err := json.Marshal(patches)
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if err != nil {
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return Errored(http.StatusBadRequest, fmt.Errorf("error when marshaling the patch: %w", err))
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}
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return Response{
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: true,
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Result: &metav1.Status{
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Code: http.StatusOK,
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},
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Patch: marshaledPatch,
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Warnings: warnings,
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PatchType: func() *admissionv1.PatchType { pt := admissionv1.PatchTypeJSONPatch; return &pt }(),
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},
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}
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}
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// MultiMutatingHandler combines multiple mutating webhook handlers into a single
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// mutating webhook handler. Handlers are called in sequential order, and the first
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// `allowed: false` response may short-circuit the rest. Users must take care to
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// ensure patches are disjoint.
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func MultiMutatingHandler(handlers ...Handler) Handler {
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return multiMutating(handlers)
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}
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type multiValidating []Handler
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func (hs multiValidating) Handle(ctx context.Context, req Request) Response {
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warnings := []string{}
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for _, handler := range hs {
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resp := handler.Handle(ctx, req)
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if !resp.Allowed {
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return resp
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}
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warnings = append(warnings, resp.Warnings...)
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}
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return Response{
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AdmissionResponse: admissionv1.AdmissionResponse{
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Allowed: true,
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Result: &metav1.Status{
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Code: http.StatusOK,
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},
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Warnings: warnings,
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},
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}
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}
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// MultiValidatingHandler combines multiple validating webhook handlers into a single
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// validating webhook handler. Handlers are called in sequential order, and the first
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// `allowed: false` response may short-circuit the rest.
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func MultiValidatingHandler(handlers ...Handler) Handler {
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return multiValidating(handlers)
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}
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