Restic operations in restic module, session in session module

This commit is contained in:
jandre 2021-02-16 22:13:40 +01:00
parent b52d876815
commit 827536c1c7
4 changed files with 149 additions and 91 deletions

View File

@ -1,93 +1,40 @@
package backup
import (
"bufio"
"bytes"
"encoding/json"
"fmt"
formolv1alpha1 "github.com/desmo999r/formol/api/v1alpha1"
"github.com/desmo999r/formolcli/pkg/backupsession"
"github.com/desmo999r/formolcli/pkg/restic"
"github.com/desmo999r/formolcli/pkg/session"
"github.com/go-logr/logr"
"github.com/go-logr/zapr"
"go.uber.org/zap"
"io/ioutil"
"os"
"os/exec"
"time"
)
var (
repository string
passwordFile string
aws_access_key_id string
aws_secret_access_key string
resticExec = "/usr/bin/restic"
pg_dumpExec = "/usr/bin/pg_dump"
logger logr.Logger
pg_dumpExec = "/usr/bin/pg_dump"
logger logr.Logger
)
func init() {
zapLog, _ := zap.NewDevelopment()
logger = zapr.NewLogger(zapLog)
repository = os.Getenv("RESTIC_REPOSITORY")
passwordFile = os.Getenv("RESTIC_PASSWORD")
aws_access_key_id = os.Getenv("AWS_ACCESS_KEY_ID")
aws_secret_access_key = os.Getenv("AWS_SECRET_ACCESS_KEY")
}
func checkRepo(repo string) error {
log := logger.WithValues("backup-checkrepo", repo)
cmd := exec.Command(resticExec, "unlock", "-r", repo)
if err := cmd.Run(); err != nil {
log.Error(err, "unable to unlock repo", "repo", repo)
}
cmd = exec.Command(resticExec, "check", "-r", repo)
output, err := cmd.CombinedOutput()
log.V(1).Info("restic check output", "output", string(output))
if err != nil {
log.V(0).Info("initializing new repo", "repo", repo)
cmd = exec.Command(resticExec, "init", "-r", repo)
output, err = cmd.CombinedOutput()
log.V(1).Info("restic init repo", "output", string(output))
if err != nil {
log.Error(err, "something went wrong during repo init")
return err
}
}
return err
}
func GetBackupResults(output []byte) (snapshotId string, duration time.Duration) {
log := logger.WithName("backup-getbackupresults")
scanner := bufio.NewScanner(bytes.NewReader(output))
var dat map[string]interface{}
for scanner.Scan() {
if err := json.Unmarshal(scanner.Bytes(), &dat); err != nil {
log.Error(err, "unable to unmarshal json", "msg", string(scanner.Bytes()))
continue
}
log.V(1).Info("message on stdout", "stdout", dat)
if message_type, ok := dat["message_type"]; ok && message_type == "summary" {
snapshotId = dat["snapshot_id"].(string)
duration = time.Duration(dat["total_duration"].(float64)*1000) * time.Millisecond
}
}
return
}
func BackupVolume(tag string, paths []string) error {
log := logger.WithName("backup-volume")
state := formolv1alpha1.Success
output, err := BackupPaths(tag, paths)
output, err := restic.BackupPaths(tag, paths)
var snapshotId string
var duration time.Duration
if err != nil {
log.Error(err, "unable to backup volume", "output", string(output))
state = formolv1alpha1.Failure
} else {
snapshotId, duration = GetBackupResults(output)
snapshotId = restic.GetBackupResults(output)
}
backupsession.BackupSessionUpdateStatus(state, snapshotId, duration)
session.BackupSessionUpdateTargetStatus(state, snapshotId)
return err
}
@ -109,27 +56,3 @@ func BackupPostgres(file string, hostname string, database string, username stri
}
return nil
}
func BackupPaths(tag string, paths []string) ([]byte, error) {
log := logger.WithName("backup-deployment")
if err := checkRepo(repository); err != nil {
log.Error(err, "unable to setup newrepo", "newrepo", repository)
return []byte{}, err
}
cmd := exec.Command(resticExec, append([]string{"backup", "--json", "--tag", tag, "-r", repository}, paths...)...)
output, err := cmd.CombinedOutput()
return output, err
}
func DeleteSnapshot(snapshot string) error {
log := logger.WithValues("delete-snapshot", snapshot)
cmd := exec.Command(resticExec, "forget", "-r", repository, "--prune", snapshot)
log.V(0).Info("deleting snapshot", "snapshot", snapshot)
output, err := cmd.CombinedOutput()
log.V(1).Info("delete snapshot output", "output", string(output))
if err != nil {
log.Error(err, "unable to delete the snapshot")
return err
}
return nil
}

View File

@ -12,7 +12,7 @@ import (
"time"
formolv1alpha1 "github.com/desmo999r/formol/api/v1alpha1"
"github.com/desmo999r/formolcli/pkg/backup"
"github.com/desmo999r/formolcli/pkg/restic"
formolcliutils "github.com/desmo999r/formolcli/pkg/utils"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
@ -25,6 +25,7 @@ type BackupSessionReconciler struct {
}
func (r *BackupSessionReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) {
time.Sleep(2 * time.Second)
ctx := context.Background()
log := r.Log.WithValues("backupsession", req.NamespacedName)
@ -69,14 +70,14 @@ func (r *BackupSessionReconciler) Reconcile(req ctrl.Request) (ctrl.Result, erro
log.V(0).Info("Running session. Do the backup")
result := formolv1alpha1.Success
status.StartTime = &metav1.Time{Time: time.Now()}
output, err := backup.BackupPaths(backupSession.Name, target.Paths)
output, err := restic.BackupPaths(backupSession.Name, target.Paths)
if err != nil {
log.Error(err, "unable to backup deployment", "output", string(output))
result = formolv1alpha1.Failure
} else {
snapshotId, duration := backup.GetBackupResults(output)
snapshotId := restic.GetBackupResults(output)
backupSession.Status.Targets[i].SnapshotId = snapshotId
backupSession.Status.Targets[i].Duration = &metav1.Duration{Duration: duration}
backupSession.Status.Targets[i].Duration = &metav1.Duration{Duration: time.Now().Sub(backupSession.Status.Targets[i].StartTime.Time)}
}
backupSession.Status.Targets[i].SessionState = result
log.V(1).Info("current backupSession status", "status", backupSession.Status)

109
pkg/restic/root.go Normal file
View File

@ -0,0 +1,109 @@
package restic
import (
"bufio"
"bytes"
"encoding/json"
"github.com/go-logr/logr"
"github.com/go-logr/zapr"
"go.uber.org/zap"
"os"
"os/exec"
"time"
)
var (
repository string
passwordFile string
aws_access_key_id string
aws_secret_access_key string
resticExec = "/usr/bin/restic"
logger logr.Logger
)
func init() {
zapLog, _ := zap.NewDevelopment()
logger = zapr.NewLogger(zapLog)
repository = os.Getenv("RESTIC_REPOSITORY")
passwordFile = os.Getenv("RESTIC_PASSWORD")
aws_access_key_id = os.Getenv("AWS_ACCESS_KEY_ID")
aws_secret_access_key = os.Getenv("AWS_SECRET_ACCESS_KEY")
}
func checkRepo(repo string) error {
log := logger.WithValues("backup-checkrepo", repo)
cmd := exec.Command(resticExec, "unlock", "-r", repo)
if err := cmd.Run(); err != nil {
log.Error(err, "unable to unlock repo", "repo", repo)
}
cmd = exec.Command(resticExec, "check", "-r", repo)
output, err := cmd.CombinedOutput()
log.V(1).Info("restic check output", "output", string(output))
if err != nil {
log.V(0).Info("initializing new repo", "repo", repo)
cmd = exec.Command(resticExec, "init", "-r", repo)
output, err = cmd.CombinedOutput()
log.V(1).Info("restic init repo", "output", string(output))
if err != nil {
log.Error(err, "something went wrong during repo init")
return err
}
}
return err
}
func GetBackupResults(output []byte) (snapshotId string) {
log := logger.WithName("backup-getbackupresults")
scanner := bufio.NewScanner(bytes.NewReader(output))
var dat map[string]interface{}
for scanner.Scan() {
if err := json.Unmarshal(scanner.Bytes(), &dat); err != nil {
log.Error(err, "unable to unmarshal json", "msg", string(scanner.Bytes()))
continue
}
log.V(1).Info("message on stdout", "stdout", dat)
if message_type, ok := dat["message_type"]; ok && message_type == "summary" {
snapshotId = dat["snapshot_id"].(string)
//duration = time.Duration(dat["total_duration"].(float64)*1000) * time.Millisecond
}
}
return
}
func GetRestoreResults(output []byte) time.Duration {
return 0 * time.Millisecond
}
func BackupPaths(tag string, paths []string) ([]byte, error) {
log := logger.WithName("backup-deployment")
if err := checkRepo(repository); err != nil {
log.Error(err, "unable to setup newrepo", "newrepo", repository)
return []byte{}, err
}
cmd := exec.Command(resticExec, append([]string{"backup", "--json", "--tag", tag, "-r", repository}, paths...)...)
output, err := cmd.CombinedOutput()
return output, err
}
func RestorePaths(repository string, snapshotId string) ([]byte, error) {
log := logger.WithName("restore-deployment")
if err := checkRepo(repository); err != nil {
log.Error(err, "unable to setup repo", "repo", repository)
return []byte{}, err
}
cmd := exec.Command(resticExec, "restore", "-r", repository, snapshotId, "--target", "/")
return cmd.CombinedOutput()
}
func DeleteSnapshot(snapshot string) error {
log := logger.WithValues("delete-snapshot", snapshot)
cmd := exec.Command(resticExec, "forget", "-r", repository, "--prune", snapshot)
log.V(0).Info("deleting snapshot", "snapshot", snapshot)
output, err := cmd.CombinedOutput()
log.V(1).Info("delete snapshot output", "output", string(output))
if err != nil {
log.Error(err, "unable to delete the snapshot")
return err
}
return nil
}

View File

@ -1,4 +1,4 @@
package backupsession
package session
import (
"context"
@ -49,7 +49,7 @@ func init() {
}
}
func BackupSessionUpdateStatus(state formolv1alpha1.SessionState, snapshotId string, duration time.Duration) error {
func BackupSessionUpdateTargetStatus(state formolv1alpha1.SessionState, snapshotId string) error {
log := logger.WithName("BackupSessionUpdateStatus")
targetName := os.Getenv("TARGET_NAME")
backupSession := &formolv1alpha1.BackupSession{}
@ -64,7 +64,7 @@ func BackupSessionUpdateStatus(state formolv1alpha1.SessionState, snapshotId str
if target.Name == targetName {
backupSession.Status.Targets[i].SessionState = state
backupSession.Status.Targets[i].SnapshotId = snapshotId
backupSession.Status.Targets[i].Duration = &metav1.Duration{Duration: duration}
backupSession.Status.Targets[i].Duration = &metav1.Duration{Duration: time.Now().Sub(backupSession.Status.Targets[i].StartTime.Time)}
}
}
@ -75,6 +75,31 @@ func BackupSessionUpdateStatus(state formolv1alpha1.SessionState, snapshotId str
return nil
}
func RestoreSessionUpdateTargetStatus(state formolv1alpha1.SessionState) error {
log := logger.WithName("RestoreSessionUpdateStatus")
targetName := os.Getenv("TARGET_NAME")
restoreSession := &formolv1alpha1.RestoreSession{}
if err := cl.Get(context.Background(), client.ObjectKey{
Namespace: os.Getenv("RESTORESESSION_NAMESPACE"),
Name: os.Getenv("RESTORESESSION_NAME"),
}, restoreSession); err != nil {
log.Error(err, "unable to get backupsession", "RESTORESESSION_NAME", os.Getenv("RESTORESESSION_NAME"), "RESTORESESSION_NAMESPACE", os.Getenv("RESTORESESSION_NAMESPACE"))
return err
}
for i, target := range restoreSession.Status.Targets {
if target.Name == targetName {
restoreSession.Status.Targets[i].SessionState = state
restoreSession.Status.Targets[i].Duration = &metav1.Duration{Duration: time.Now().Sub(restoreSession.Status.Targets[i].StartTime.Time)}
}
}
if err := cl.Status().Update(context.Background(), restoreSession); err != nil {
log.Error(err, "unable to update restoresession status", "restoresession", restoreSession)
return err
}
return nil
}
func CreateBackupSession(name string, namespace string) {
log := logger.WithName("CreateBackupSession")
log.V(0).Info("CreateBackupSession called")