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package main
import (
"encoding/json"
"fmt"
"os"
"time"
"github.com/containers/storage"
"github.com/containers/storage/pkg/mflag"
)
var (
quickCheck, repair, forceRepair bool
maximumUnreferencedLayerAge string
)
func check(flags *mflag.FlagSet, action string, m storage.Store, args []string) (int, error) {
if forceRepair {
repair = true
}
defer func() {
if _, err := m.Shutdown(true); err != nil {
fmt.Fprintf(os.Stderr, "shutdown: %v\n", err)
}
}()
checkOptions := storage.CheckEverything()
if quickCheck {
checkOptions = storage.CheckMost()
}
if maximumUnreferencedLayerAge != "" {
age, err := time.ParseDuration(maximumUnreferencedLayerAge)
if err != nil {
return 1, err
}
checkOptions.LayerUnreferencedMaximumAge = &age
}
report, err := m.Check(checkOptions)
if err != nil {
return 1, err
}
outputNonJSON := func(report storage.CheckReport) {
for id, errs := range report.Layers {
if len(errs) > 0 {
fmt.Fprintf(os.Stdout, "layer %s:\n", id)
}
for _, err := range errs {
fmt.Fprintf(os.Stdout, " %v\n", err)
}
}
for id, errs := range report.ROLayers {
if len(errs) > 0 {
fmt.Fprintf(os.Stdout, "read-only layer %s:\n", id)
}
for _, err := range errs {
fmt.Fprintf(os.Stdout, " %v\n", err)
}
}
for id, errs := range report.Images {
if len(errs) > 0 {
fmt.Fprintf(os.Stdout, "image %s:\n", id)
}
for _, err := range errs {
fmt.Fprintf(os.Stdout, " %v\n", err)
}
}
for id, errs := range report.ROImages {
if len(errs) > 0 {
fmt.Fprintf(os.Stdout, "read-only image %s:\n", id)
}
for _, err := range errs {
fmt.Fprintf(os.Stdout, " %v\n", err)
}
}
for id, errs := range report.Containers {
if len(errs) > 0 {
fmt.Fprintf(os.Stdout, "container %s:\n", id)
}
for _, err := range errs {
fmt.Fprintf(os.Stdout, " %v\n", err)
}
}
}
if jsonOutput {
if err := json.NewEncoder(os.Stdout).Encode(report); err != nil {
return 1, err
}
} else {
outputNonJSON(report)
}
if !repair {
if len(report.Layers) > 0 || len(report.ROLayers) > 0 || len(report.Images) > 0 || len(report.ROImages) > 0 || len(report.Containers) > 0 {
return 1, fmt.Errorf("%d layer errors, %d read-only layer errors, %d image errors, %d read-only image errors, %d container errors", len(report.Layers), len(report.ROLayers), len(report.Images), len(report.ROImages), len(report.Containers))
}
} else {
options := storage.RepairOptions{
RemoveContainers: forceRepair,
}
if errs := m.Repair(report, &options); len(errs) != 0 {
if jsonOutput {
if err := json.NewEncoder(os.Stdout).Encode(errs); err != nil {
return 1, err
}
} else {
for _, err := range errs {
fmt.Fprintf(os.Stderr, "%v\n", err)
}
}
return 1, errs[0]
}
if len(report.ROLayers) > 0 || len(report.ROImages) > 0 || (!options.RemoveContainers && len(report.Containers) > 0) {
var err error
if options.RemoveContainers {
err = fmt.Errorf("%d read-only layer errors, %d read-only image errors", len(report.ROLayers), len(report.ROImages))
} else {
err = fmt.Errorf("%d read-only layer errors, %d read-only image errors, %d container errors", len(report.ROLayers), len(report.ROImages), len(report.Containers))
}
return 1, err
}
}
return 0, nil
}
func init() {
commands = append(commands, command{
names: []string{"check"},
usage: "Check storage consistency",
minArgs: 0,
maxArgs: 0,
action: check,
addFlags: func(flags *mflag.FlagSet, cmd *command) {
flags.BoolVar(&jsonOutput, []string{"-json", "j"}, jsonOutput, "Prefer JSON output")
flags.StringVar(&maximumUnreferencedLayerAge, []string{"-max", "m"}, "24h", "Maximum allowed age for unreferenced layers")
flags.BoolVar(&repair, []string{"-repair", "r"}, repair, "Remove damaged images and layers")
flags.BoolVar(&forceRepair, []string{"-force", "f"}, forceRepair, "Remove damaged containers")
flags.BoolVar(&quickCheck, []string{"-quick", "q"}, quickCheck, "Perform only quick checks")
},
})
}
|
