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.
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
/*
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Copyright 2024 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 safe
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// Field takes a pointer to any value (which may or may not be nil) and a
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// function that traverses to a target type R (a typical use case is to
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// dereference a field), and returns the result of the traversal, or the zero
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// value of the target type.
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//
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// This is roughly equivalent to:
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//
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// value != nil ? fn(value) : zero-value
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//
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// ...in languages that support the ternary operator.
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func Field[V any, R any](value *V, fn func(*V) R) R {
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if value == nil {
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var zero R
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return zero
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}
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o := fn(value)
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return o
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}
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// Cast takes any value, attempts to cast it to T, and returns the T value if
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// the cast is successful, or else the zero value of T.
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func Cast[T any](value any) T {
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result, _ := value.(T)
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return result
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}
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// Value takes a pointer to any value (which may or may not be nil) and a
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// function that returns a pointer to the same type. If the value is not nil,
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// it is returned, otherwise the result of the function is returned.
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//
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// This is roughly equivalent to:
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//
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// value != nil ? value : fn()
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//
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// ...in languages that support the ternary operator.
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func Value[T any](value *T, fn func() *T) *T {
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if value != nil {
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return value
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}
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return fn()
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}
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