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https://github.com/zrepl/zrepl.git
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43 lines
896 B
Go
43 lines
896 B
Go
package main
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import (
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"fmt"
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"github.com/zrepl/zrepl/zfs"
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"time"
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)
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type AutosnapContext struct {
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Autosnap Autosnap
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}
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func doAutosnap(ctx AutosnapContext, log Logger) (err error) {
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snap := ctx.Autosnap
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filesystems, err := zfs.ZFSListMapping(snap.DatasetFilter)
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if err != nil {
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return fmt.Errorf("cannot filter datasets: %s", err)
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}
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suffix := time.Now().In(time.UTC).Format("20060102_150405_000")
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snapname := fmt.Sprintf("%s%s", snap.Prefix, suffix)
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hadError := false
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for _, fs := range filesystems { // optimization: use recursive snapshots / channel programs here
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log.Printf("snapshotting filesystem %s@%s", fs, snapname)
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err := zfs.ZFSSnapshot(fs, snapname, false)
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if err != nil {
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log.Printf("error snapshotting %s: %s", fs, err)
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hadError = true
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}
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}
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if hadError {
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err = fmt.Errorf("errors occurred during autosnap, check logs for details")
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}
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return
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}
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