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.
86 lines
2.7 KiB
Go
86 lines
2.7 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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"bytes"
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"fmt"
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"github.com/prometheus/procfs/internal/util"
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)
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const nfNetLinkQueueFormat = "%d %d %d %d %d %d %d %d %d"
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// NFNetLinkQueue contains general information about netfilter queues found in /proc/net/netfilter/nfnetlink_queue.
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type NFNetLinkQueue struct {
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// id of the queue
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QueueID uint
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// pid of process handling the queue
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PeerPID uint
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// number of packets waiting for a decision
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QueueTotal uint
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// indicate how userspace receive packets
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CopyMode uint
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// size of copy
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CopyRange uint
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// number of items dropped by the kernel because too many packets were waiting a decision.
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// It queue_total is superior to queue_max_len (1024 per default) the packets are dropped.
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QueueDropped uint
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// number of packets dropped by userspace (due to kernel send failure on the netlink socket)
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QueueUserDropped uint
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// sequence number of packets queued. It gives a correct approximation of the number of queued packets.
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SequenceID uint
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// internal value (number of entity using the queue)
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Use uint
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}
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// NFNetLinkQueue returns information about current state of netfilter queues.
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func (fs FS) NFNetLinkQueue() ([]NFNetLinkQueue, error) {
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data, err := util.ReadFileNoStat(fs.proc.Path("net/netfilter/nfnetlink_queue"))
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if err != nil {
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return nil, err
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}
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queue := []NFNetLinkQueue{}
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if len(data) == 0 {
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return queue, nil
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}
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scanner := bufio.NewScanner(bytes.NewReader(data))
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for scanner.Scan() {
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line := scanner.Text()
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nFNetLinkQueue, err := parseNFNetLinkQueueLine(line)
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if err != nil {
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return nil, err
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}
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queue = append(queue, *nFNetLinkQueue)
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}
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return queue, nil
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}
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// parseNFNetLinkQueueLine parses each line of the /proc/net/netfilter/nfnetlink_queue file.
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func parseNFNetLinkQueueLine(line string) (*NFNetLinkQueue, error) {
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nFNetLinkQueue := NFNetLinkQueue{}
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_, err := fmt.Sscanf(
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line, nfNetLinkQueueFormat,
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&nFNetLinkQueue.QueueID, &nFNetLinkQueue.PeerPID, &nFNetLinkQueue.QueueTotal, &nFNetLinkQueue.CopyMode,
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&nFNetLinkQueue.CopyRange, &nFNetLinkQueue.QueueDropped, &nFNetLinkQueue.QueueUserDropped, &nFNetLinkQueue.SequenceID, &nFNetLinkQueue.Use,
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)
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if err != nil {
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return nil, err
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}
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return &nFNetLinkQueue, nil
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}
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