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Allow for env substitution in backup filename (#39)

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This commit is contained in:
Frederik Ring
2021-12-22 14:39:46 +01:00
committed by GitHub
parent 3a7dfe8e60
commit c062710ce8
4 changed files with 23 additions and 6 deletions
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7
cmd/backup/main.go
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@@ -103,6 +103,7 @@ type script struct {
type config struct {
BackupSources string `split_words:"true" default:"/backup"`
BackupFilename string `split_words:"true" default:"backup-%Y-%m-%dT%H-%M-%S.tar.gz"`
BackupFilenameExpand bool `split_words:"true"`
BackupLatestSymlink string `split_words:"true"`
BackupArchive string `split_words:"true" default:"/archive"`
BackupRetentionDays int32 `split_words:"true" default:"-1"`
@@ -153,6 +154,11 @@ func newScript() (*script, error) {
}
s.file = path.Join("/tmp", s.c.BackupFilename)
if s.c.BackupFilenameExpand {
s.file = os.ExpandEnv(s.file)
s.c.BackupLatestSymlink = os.ExpandEnv(s.c.BackupLatestSymlink)
}
s.file = timeutil.Strftime(&s.start, s.file)
_, err := os.Stat("/var/run/docker.sock")
if !os.IsNotExist(err) {
@@ -413,7 +419,6 @@ func (s *script) stopContainers() (func() error, error) {
// takeBackup creates a tar archive of the configured backup location and
// saves it to disk.
func (s *script) takeBackup() error {
s.file = timeutil.Strftime(&s.start, s.file)
backupSources := s.c.BackupSources
if s.c.BackupFromSnapshot {