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.
63 lines
2.1 KiB
Go
63 lines
2.1 KiB
Go
// Copyright The Prometheus 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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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//go:build !windows
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package procfs
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import (
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"os"
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"github.com/prometheus/procfs/internal/util"
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)
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// KernelRandom contains information about to the kernel's random number generator.
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type KernelRandom struct {
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// EntropyAvaliable gives the available entropy, in bits.
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EntropyAvaliable *uint64
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// PoolSize gives the size of the entropy pool, in bits.
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PoolSize *uint64
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// URandomMinReseedSeconds is the number of seconds after which the DRNG will be reseeded.
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URandomMinReseedSeconds *uint64
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// WriteWakeupThreshold the number of bits of entropy below which we wake up processes
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// that do a select(2) or poll(2) for write access to /dev/random.
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WriteWakeupThreshold *uint64
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// ReadWakeupThreshold is the number of bits of entropy required for waking up processes that sleep
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// waiting for entropy from /dev/random.
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ReadWakeupThreshold *uint64
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}
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// KernelRandom returns values from /proc/sys/kernel/random.
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func (fs FS) KernelRandom() (KernelRandom, error) {
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random := KernelRandom{}
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for file, p := range map[string]**uint64{
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"entropy_avail": &random.EntropyAvaliable,
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"poolsize": &random.PoolSize,
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"urandom_min_reseed_secs": &random.URandomMinReseedSeconds,
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"write_wakeup_threshold": &random.WriteWakeupThreshold,
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"read_wakeup_threshold": &random.ReadWakeupThreshold,
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} {
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val, err := util.ReadUintFromFile(fs.proc.Path("sys", "kernel", "random", file))
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if os.IsNotExist(err) {
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continue
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}
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if err != nil {
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return random, err
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}
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*p = &val
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}
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return random, nil
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}
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