offen/docker-volume-backup
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use go native strftime version

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This commit is contained in:
Frederik Ring 2021-08-22 21:06:51 +02:00
parent f15379795f
commit 01d1a60bb7
5 changed files with 12 additions and 11 deletions
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2
README.md
View File

@ -79,7 +79,7 @@ AWS_S3_BUCKET_NAME="<xxx>"
# that is expected to be bigger than the maximum difference of backups.
# Valid values have a suffix of (s)econds, (m)inutes or (h)ours.
# BACKUP_PRUNING_LEEWAY="10m"
# BACKUP_PRUNING_LEEWAY="1m"
# In case your target bucket or directory contains other files than the ones
# managed by this container, you can limit the scope of rotation by setting

14
cmd/backup/main.go
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@ -11,11 +11,9 @@ import (
"io"
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/docker/docker/api/types"
@ -23,6 +21,7 @@ import (
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/client"
"github.com/joho/godotenv"
"github.com/leekchan/timeutil"
minio "github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/sirupsen/logrus"
@ -54,6 +53,7 @@ type script struct {
archive string
sources string
passphrase string
now time.Time
}
// lock opens a lockfile at the given location, keeping it locked until the
@ -119,6 +119,8 @@ func (s *script) init() error {
s.archive = os.Getenv("BACKUP_ARCHIVE")
s.sources = os.Getenv("BACKUP_SOURCES")
s.passphrase = os.Getenv("GPG_PASSPHRASE")
s.now = time.Now()
return nil
}
@ -237,11 +239,7 @@ func (s *script) stopContainersAndRun(thunk func() error) error {
// takeBackup creates a tar archive of the configured backup location and
// saves it to disk.
func (s *script) takeBackup() error {
outBytes, err := exec.Command("date", fmt.Sprintf("+%s", s.file)).Output()
if err != nil {
return fmt.Errorf("takeBackup: error formatting filename template: %w", err)
}
s.file = strings.TrimSpace(string(outBytes))
s.file = timeutil.Strftime(&s.now, s.file)
if err := targz.Compress(s.sources, s.file); err != nil {
return fmt.Errorf("takeBackup: error compressing backup folder: %w", err)
}
@ -345,7 +343,7 @@ func (s *script) pruneOldBackups() error {
time.Sleep(sleepFor)
s.logger.Infof("Trying to prune backups older than %d days now.", retentionDays)
deadline := time.Now().AddDate(0, 0, -retentionDays)
deadline := s.now.AddDate(0, 0, -retentionDays)
if s.bucket != "" {
candidates := s.mc.ListObjects(s.ctx, s.bucket, minio.ListObjectsOptions{

2
entrypoint.sh
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@ -17,7 +17,7 @@ BACKUP_FILENAME="${BACKUP_FILENAME:-backup-%Y-%m-%dT%H-%M-%S.tar.gz}"
BACKUP_ARCHIVE="${BACKUP_ARCHIVE:-/archive}"
BACKUP_RETENTION_DAYS="${BACKUP_RETENTION_DAYS:-}"
BACKUP_PRUNING_LEEWAY="${BACKUP_PRUNING_LEEWAY:-10m}"
BACKUP_PRUNING_LEEWAY="${BACKUP_PRUNING_LEEWAY:-1m}"
BACKUP_PRUNING_PREFIX="${BACKUP_PRUNING_PREFIX:-}"
BACKUP_STOP_CONTAINER_LABEL="${BACKUP_STOP_CONTAINER_LABEL:-true}"

3
go.mod
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@ -5,7 +5,9 @@ go 1.17
require (
github.com/docker/docker v20.10.8+incompatible
github.com/joho/godotenv v1.3.0
github.com/leekchan/timeutil v0.0.0-20150802142658-28917288c48d
github.com/minio/minio-go/v7 v7.0.12
github.com/sirupsen/logrus v1.8.1
github.com/walle/targz v0.0.0-20140417120357-57fe4206da5a
golang.org/x/crypto v0.0.0-20210817164053-32db794688a5
)
@ -32,7 +34,6 @@ require (
github.com/opencontainers/image-spec v1.0.1 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/rs/xid v1.2.1 // indirect
github.com/sirupsen/logrus v1.8.1 // indirect
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
golang.org/x/text v0.3.4 // indirect

2
go.sum
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@ -401,6 +401,8 @@ github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/pty v1.1.5/go.mod h1:9r2w37qlBe7rQ6e1fg1S/9xpWHSnaqNdHD3WcMdbPDA=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/leekchan/timeutil v0.0.0-20150802142658-28917288c48d h1:2puqoOQwi3Ai1oznMOsFIbifm6kIfJaLLyYzWD4IzTs=
github.com/leekchan/timeutil v0.0.0-20150802142658-28917288c48d/go.mod h1:hO90vCP2x3exaSH58BIAowSKvV+0OsY21TtzuFGHON4=
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=