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.
83 lines
2.1 KiB
Go
83 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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package procfs
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import (
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"bufio"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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)
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// NetStat contains statistics for all the counters from one file.
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type NetStat struct {
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Stats map[string][]uint64
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Filename string
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}
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// NetStat retrieves stats from `/proc/net/stat/`.
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func (fs FS) NetStat() ([]NetStat, error) {
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statFiles, err := filepath.Glob(fs.proc.Path("net/stat/*"))
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if err != nil {
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return nil, err
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}
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var netStatsTotal []NetStat
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for _, filePath := range statFiles {
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procNetstat, err := parseNetstat(filePath)
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if err != nil {
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return nil, err
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}
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procNetstat.Filename = filepath.Base(filePath)
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netStatsTotal = append(netStatsTotal, procNetstat)
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}
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return netStatsTotal, nil
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}
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// parseNetstat parses the metrics from `/proc/net/stat/` file
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// and returns a NetStat structure.
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func parseNetstat(filePath string) (NetStat, error) {
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netStat := NetStat{
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Stats: make(map[string][]uint64),
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}
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file, err := os.Open(filePath)
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if err != nil {
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return netStat, err
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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scanner.Scan()
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// First string is always a header for stats
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var headers []string
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headers = append(headers, strings.Fields(scanner.Text())...)
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// Other strings represent per-CPU counters
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for scanner.Scan() {
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for num, counter := range strings.Fields(scanner.Text()) {
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value, err := strconv.ParseUint(counter, 16, 64)
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if err != nil {
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return NetStat{}, err
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}
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netStat.Stats[headers[num]] = append(netStat.Stats[headers[num]], value)
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}
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}
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return netStat, nil
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}
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