97 lines
2.3 KiB
Go
97 lines
2.3 KiB
Go
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package backup
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import (
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"sort"
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"sync"
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)
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type SkippedPV struct {
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Name string `json:"name"`
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Reasons []PVSkipReason `json:"reasons"`
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}
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type PVSkipReason struct {
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Approach string `json:"approach"`
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Reason string `json:"reason"`
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}
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// skipPVTracker keeps track of persistent volumes that have been skipped and the reason why they are skipped.
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type skipPVTracker struct {
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*sync.RWMutex
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// pvs is a map of name of the pv to the list of reasons why it is skipped.
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// The reasons are stored in a map each key of the map is the backup approach, each approach can have one reason
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pvs map[string]map[string]string
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}
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const (
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podVolumeApproach = "podvolume"
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csiSnapshotApproach = "csiSnapshot"
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volumeSnapshotApproach = "volumeSnapshot"
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anyApproach = "any"
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)
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func NewSkipPVTracker() *skipPVTracker {
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return &skipPVTracker{
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RWMutex: &sync.RWMutex{},
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pvs: make(map[string]map[string]string),
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}
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}
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// Track tracks the pv with the specified name and the reason why it is skipped
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func (pt *skipPVTracker) Track(name, approach, reason string) {
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pt.Lock()
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defer pt.Unlock()
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if name == "" || reason == "" {
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return
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}
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skipReasons := pt.pvs[name]
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if skipReasons == nil {
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skipReasons = make(map[string]string, 0)
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pt.pvs[name] = skipReasons
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}
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if approach == "" {
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approach = anyApproach
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}
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skipReasons[approach] = reason
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}
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// Untrack removes the pvc with the specified namespace and name.
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func (pt *skipPVTracker) Untrack(name string) {
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pt.Lock()
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defer pt.Unlock()
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delete(pt.pvs, name)
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}
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// Summary returns the summary of the tracked pvcs.
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func (pt *skipPVTracker) Summary() []SkippedPV {
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pt.RLock()
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defer pt.RUnlock()
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keys := make([]string, 0, len(pt.pvs))
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for key := range pt.pvs {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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res := make([]SkippedPV, 0, len(keys))
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for _, key := range keys {
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if skipReasons := pt.pvs[key]; len(skipReasons) > 0 {
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entry := SkippedPV{
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Name: key,
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Reasons: make([]PVSkipReason, 0, len(skipReasons)),
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}
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approaches := make([]string, 0, len(skipReasons))
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for a := range skipReasons {
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approaches = append(approaches, a)
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}
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sort.Strings(approaches)
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for _, a := range approaches {
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entry.Reasons = append(entry.Reasons, PVSkipReason{
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Approach: a,
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Reason: skipReasons[a],
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})
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}
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res = append(res, entry)
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}
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}
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return res
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}
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