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4 Commits

Author SHA1 Message Date
12fbb67a09 Merge pull request #115 from jkaninda/email-notification
docs: update send notification
2024-10-09 22:38:35 +02:00
Jonas Kaninda
df490af7b6 docs: update send notification 2024-10-09 22:38:07 +02:00
d930c3e2f6 Merge pull request #114 from jkaninda/email-notification
feat: add email notification for failed and success backup
2024-10-09 22:32:44 +02:00
Jonas Kaninda
e4258cb12e feat: add email notification for failed and success backup 2024-10-09 22:31:52 +02:00
13 changed files with 486 additions and 91 deletions

View File

@@ -47,6 +47,7 @@ ENV TZ=UTC
ARG WORKDIR="/config"
ARG BACKUPDIR="/backup"
ARG BACKUP_TMP_DIR="/tmp/backup"
ARG TEMPLATES_DIR="/config/templates"
ARG appVersion="v1.2.12"
ENV VERSION=${appVersion}
LABEL author="Jonas Kaninda"
@@ -55,6 +56,7 @@ LABEL version=${appVersion}
RUN apk --update add --no-cache mysql-client mariadb-connector-c tzdata
RUN mkdir $WORKDIR
RUN mkdir $BACKUPDIR
RUN mkdir $TEMPLATES_DIR
RUN mkdir -p $BACKUP_TMP_DIR
RUN chmod 777 $WORKDIR
RUN chmod 777 $BACKUPDIR
@@ -62,6 +64,7 @@ RUN chmod 777 $BACKUP_TMP_DIR
RUN chmod 777 $WORKDIR
COPY --from=build /app/mysql-bkup /usr/local/bin/mysql-bkup
COPY ./templates/* $TEMPLATES_DIR/
RUN chmod +x /usr/local/bin/mysql-bkup
RUN ln -s /usr/local/bin/mysql-bkup /usr/local/bin/bkup

View File

@@ -0,0 +1,137 @@
---
title: Receive notifications
layout: default
parent: How Tos
nav_order: 12
---
Send Email or Telegram notifications on success or failed backup.
### Email
To send out email notifications on failed backup runs, provide SMTP credentials, a sender and a recipient:
```yaml
services:
mysql-bkup:
image: jkaninda/mysql-bkup
container_name: mysql-bkup
command: backup
volumes:
- ./backup:/backup
environment:
- DB_PORT=3306
- DB_HOST=mysql
- DB_NAME=database
- DB_USERNAME=username
- DB_PASSWORD=password
- MAIL_HOST=
- MAIL_PORT=587
- MAIL_USERNAME=
- MAIL_PASSWORD=!
- MAIL_FROM=sender@example.com
- MAIL_TO=me@example.com,team@example.com,manager@example.com
- MAIL_SKIP_TLS=false
networks:
- web
networks:
web:
```
### Telegram
```yaml
services:
mysql-bkup:
image: jkaninda/mysql-bkup
container_name: mysql-bkup
command: backup
volumes:
- ./backup:/backup
environment:
- DB_PORT=3306
- DB_HOST=mysql
- DB_NAME=database
- DB_USERNAME=username
- DB_PASSWORD=password
- TG_TOKEN=[BOT ID]:[BOT TOKEN]
- TG_CHAT_ID=
networks:
- web
networks:
web:
```
### Customize notifications
The body of the notifications can be tailored to your needs using Go templates.
Template sources must be mounted inside the container in /config/templates:
- email.template: Email notification template
- telegram.template: Telegram notification template
- error.template: Error notification template
### Data
Here is a list of all data passed to the template:
- `Database` : Database name
- `StartTime`: Backup start time process
- `EndTime`: Backup start time process
- `Storage`: Backup storage
- `BackupLocation`: Backup location
- `BackupSize`: Backup size
> email.template:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>[✅ Database Backup Notification {{.Database}}</title>
</head>
<body>
<h2>Hi,</h2>
<p>Backup of the {{.Database}} database has been successfully completed on {{.EndTime}}.</p>
<h3>Backup Details:</h3>
<ul>
<li>Database Name: {{.Database}}</li>
<li>Backup Start Time: {{.StartTime}}</li>
<li>Backup End Time: {{.EndTime}}</li>
<li>Backup Storage: {{.Storage}}</li>
<li>Backup Location: {{.BackupLocation}}</li>
<li>Backup Size: {{.BackupSize}} bytes</li>
</ul>
<p>Best regards,</p>
</body>
</html>
```
> telegram.template
```html
[✅ Database Backup Notification {{.Database}}
Hi,
Backup of the {{.Database}} database has been successfully completed on {{.EndTime}}.
Backup Details:
- Database Name: {{.Database}}
- Backup Start Time: {{.StartTime}}
- Backup EndTime: {{.EndTime}}
- Backup Storage: {{.Storage}}
- Backup Location: {{.BackupLocation}}
- Backup Size: {{.BackupSize}} bytes
```
> error.template
```html
🔴 Urgent: Database Backup Failure Notification
An error occurred during database backup.
Failure Details:
Error Message: {{.Error}}
Date: {{.EndTime}}
```

2
go.mod
View File

@@ -20,6 +20,7 @@ require (
github.com/ProtonMail/go-crypto v0.0.0-20230717121422-5aa5874ade95 // indirect
github.com/ProtonMail/go-mime v0.0.0-20230322103455-7d82a3887f2f // indirect
github.com/cloudflare/circl v1.3.3 // indirect
github.com/go-mail/mail v2.3.1+incompatible // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
@@ -27,6 +28,7 @@ require (
github.com/pkg/errors v0.9.1 // indirect
golang.org/x/sys v0.22.0 // indirect
golang.org/x/text v0.14.0 // indirect
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
gopkg.in/fsnotify.v1 v1.4.7 // indirect
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
)

4
go.sum
View File

@@ -17,6 +17,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/go-mail/mail v2.3.1+incompatible h1:UzNOn0k5lpfVtO31cK3hn6I4VEVGhe3lX8AJBAxXExM=
github.com/go-mail/mail v2.3.1+incompatible/go.mod h1:VPWjmmNyRsWXQZHVHT3g0YbIINUkSmuKOiLIDkWbL6M=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
@@ -94,6 +96,8 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc h1:2gGKlE2+asNV9m7xrywl36YYNnBG5ZQ0r/BOOxqPpmk=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=

View File

@@ -218,17 +218,31 @@ func BackupDatabase(db *dbConfig, backupFileName string, disableCompression bool
}
func localBackup(db *dbConfig, config *BackupConfig) {
utils.Info("Backup database to local storage")
startTime = time.Now().Format("2006-01-02 15:04:05")
BackupDatabase(db, config.backupFileName, disableCompression)
finalFileName := config.backupFileName
if config.encryption {
encryptBackup(config)
finalFileName = fmt.Sprintf("%s.%s", config.backupFileName, gpgExtension)
}
fileInfo, err := os.Stat(filepath.Join(tmpPath, finalFileName))
if err != nil {
utils.Error("Error:", err)
}
//Get backup info
backupSize = fileInfo.Size()
utils.Info("Backup name is %s", finalFileName)
moveToBackup(finalFileName, storagePath)
//Send notification
utils.NotifySuccess(finalFileName)
utils.NotifySuccess(&utils.NotificationData{
File: finalFileName,
BackupSize: backupSize,
Database: db.dbName,
Storage: config.storage,
BackupLocation: filepath.Join(config.remotePath, finalFileName),
StartTime: startTime,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
})
//Delete old backup
if config.prune {
deleteOldBackup(config.backupRetention)
@@ -242,6 +256,8 @@ func s3Backup(db *dbConfig, config *BackupConfig) {
bucket := utils.GetEnvVariable("AWS_S3_BUCKET_NAME", "BUCKET_NAME")
s3Path := utils.GetEnvVariable("AWS_S3_PATH", "S3_PATH")
utils.Info("Backup database to s3 storage")
startTime = time.Now().Format("2006-01-02 15:04:05")
//Backup database
BackupDatabase(db, config.backupFileName, disableCompression)
finalFileName := config.backupFileName
@@ -257,7 +273,12 @@ func s3Backup(db *dbConfig, config *BackupConfig) {
utils.Fatal("Error uploading backup archive to S3: %s ", err)
}
//Get backup info
fileInfo, err := os.Stat(filepath.Join(tmpPath, finalFileName))
if err != nil {
utils.Error("Error:", err)
}
backupSize = fileInfo.Size()
//Delete backup file from tmp folder
err = utils.DeleteFile(filepath.Join(tmpPath, config.backupFileName))
if err != nil {
@@ -273,7 +294,15 @@ func s3Backup(db *dbConfig, config *BackupConfig) {
}
utils.Done("Uploading backup archive to remote storage S3 ... done ")
//Send notification
utils.NotifySuccess(finalFileName)
utils.NotifySuccess(&utils.NotificationData{
File: finalFileName,
BackupSize: backupSize,
Database: db.dbName,
Storage: config.storage,
BackupLocation: filepath.Join(config.remotePath, finalFileName),
StartTime: startTime,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
})
//Delete temp
deleteTemp()
utils.Info("Backup completed successfully")
@@ -281,6 +310,8 @@ func s3Backup(db *dbConfig, config *BackupConfig) {
}
func sshBackup(db *dbConfig, config *BackupConfig) {
utils.Info("Backup database to Remote server")
startTime = time.Now().Format("2006-01-02 15:04:05")
//Backup database
BackupDatabase(db, config.backupFileName, disableCompression)
finalFileName := config.backupFileName
@@ -295,7 +326,12 @@ func sshBackup(db *dbConfig, config *BackupConfig) {
utils.Fatal("Error uploading file to the remote server: %s ", err)
}
//Get backup info
fileInfo, err := os.Stat(filepath.Join(tmpPath, finalFileName))
if err != nil {
utils.Error("Error:", err)
}
backupSize = fileInfo.Size()
//Delete backup file from tmp folder
err = utils.DeleteFile(filepath.Join(tmpPath, finalFileName))
if err != nil {
@@ -310,7 +346,15 @@ func sshBackup(db *dbConfig, config *BackupConfig) {
utils.Done("Uploading backup archive to remote storage ... done ")
//Send notification
utils.NotifySuccess(finalFileName)
utils.NotifySuccess(&utils.NotificationData{
File: finalFileName,
BackupSize: backupSize,
Database: db.dbName,
Storage: config.storage,
BackupLocation: filepath.Join(config.remotePath, finalFileName),
StartTime: startTime,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
})
//Delete temp
deleteTemp()
utils.Info("Backup completed successfully")
@@ -318,6 +362,8 @@ func sshBackup(db *dbConfig, config *BackupConfig) {
}
func ftpBackup(db *dbConfig, config *BackupConfig) {
utils.Info("Backup database to the remote FTP server")
startTime = time.Now().Format("2006-01-02 15:04:05")
//Backup database
BackupDatabase(db, config.backupFileName, disableCompression)
finalFileName := config.backupFileName
@@ -332,7 +378,12 @@ func ftpBackup(db *dbConfig, config *BackupConfig) {
utils.Fatal("Error uploading file to the remote FTP server: %s ", err)
}
//Get backup info
fileInfo, err := os.Stat(filepath.Join(tmpPath, finalFileName))
if err != nil {
utils.Error("Error:", err)
}
backupSize = fileInfo.Size()
//Delete backup file from tmp folder
err = utils.DeleteFile(filepath.Join(tmpPath, finalFileName))
if err != nil {
@@ -347,7 +398,15 @@ func ftpBackup(db *dbConfig, config *BackupConfig) {
utils.Done("Uploading backup archive to the remote FTP server ... done ")
//Send notification
utils.NotifySuccess(finalFileName)
utils.NotifySuccess(&utils.NotificationData{
File: finalFileName,
BackupSize: backupSize,
Database: db.dbName,
Storage: config.storage,
BackupLocation: filepath.Join(config.remotePath, finalFileName),
StartTime: startTime,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
})
//Delete temp
deleteTemp()
utils.Info("Backup completed successfully")

View File

@@ -20,6 +20,8 @@ var (
disableCompression = false
encryption = false
usingKey = false
backupSize int64 = 0
startTime string
)
// dbHVars Required environment variables for database

View File

@@ -0,0 +1,17 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>🔴 Urgent: Database Backup Failure Notification</title>
</head>
<body>
<h2>Hi,</h2>
<p>An error occurred during database backup.</p>
<h3>Failure Details:</h3>
<ul>
<li>Error Message: {{.Error}}</li>
<li>Date: {{.EndTime}}</li>
</ul>
<p>©2024 <a href="github.com/jkaninda/mysql-bkup">mysql-bkup</a></p>
</body>
</html>

23
templates/email.template Normal file
View File

@@ -0,0 +1,23 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>✅ Database Backup Notification {{.Database}}</title>
</head>
<body>
<h2>Hi,</h2>
<p>Backup of the {{.Database}} database has been successfully completed on {{.EndTime}}.</p>
<h3>Backup Details:</h3>
<ul>
<li>Database Name: {{.Database}}</li>
<li>Backup Start Time: {{.StartTime}}</li>
<li>Backup End Time: {{.EndTime}}</li>
<li>Backup Storage: {{.Storage}}</li>
<li>Backup Location: {{.BackupLocation}}</li>
<li>Backup Size: {{.BackupSize}} bytes</li>
</ul>
<p>Best regards,</p>
<p>©2024 <a href="github.com/jkaninda/mysql-bkup">mysql-bkup</a></p>
<href>
</body>
</html>

View File

@@ -0,0 +1,7 @@
🔴 Urgent: Database Backup Failure Notification
Hi,
An error occurred during database backup.
Failure Details:
Date: {{.EndTime}}
Error Message: {{.Error}}

View File

@@ -0,0 +1,11 @@
✅ Database Backup Notification {{.Database}}
Hi,
Backup of the {{.Database}} database has been successfully completed on {{.EndTime}}.
Backup Details:
- Database Name: {{.Database}}
- Backup Start Time: {{.StartTime}}
- Backup EndTime: {{.EndTime}}
- Backup Storage: {{.Storage}}
- Backup Location: {{.BackupLocation}}
- Backup Size: {{.BackupSize}} bytes

42
utils/config.go Normal file
View File

@@ -0,0 +1,42 @@
package utils
import "os"
type MailConfig struct {
MailHost string
MailPort int
MailUserName string
MailPassword string
MailTo string
MailFrom string
SkipTls bool
}
type NotificationData struct {
File string
BackupSize int64
Database string
StartTime string
EndTime string
Storage string
BackupLocation string
}
type ErrorMessage struct {
Database string
EndTime string
Error string
}
func loadMailConfig() *MailConfig {
return &MailConfig{
MailHost: os.Getenv("MAIL_HOST"),
MailPort: GetIntEnv("MAIL_PORT"),
MailUserName: os.Getenv("MAIL_USERNAME"),
MailPassword: os.Getenv("MAIL_PASSWORD"),
MailTo: os.Getenv("MAIL_TO"),
MailFrom: os.Getenv("MAIL_FROM"),
SkipTls: os.Getenv("MAIL_SKIP_TLS") == "false",
}
}
const templatePath = "/config/templates"

163
utils/notification.go Normal file
View File

@@ -0,0 +1,163 @@
package utils
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"github.com/go-mail/mail"
"github.com/robfig/cron/v3"
"html/template"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"strings"
"time"
)
func parseTemplate[T any](data T, fileName string) (string, error) {
// Open the file
tmpl, err := template.ParseFiles(filepath.Join(templatePath, fileName))
if err != nil {
return "", err
}
var buf bytes.Buffer
if err = tmpl.Execute(&buf, data); err != nil {
return "", err
}
return buf.String(), nil
}
func SendEmail(subject, body string) {
Info("Start sending email....")
config := loadMailConfig()
emails := strings.Split(config.MailTo, ",")
m := mail.NewMessage()
m.SetHeader("From", config.MailFrom)
m.SetHeader("To", emails...)
m.SetHeader("Subject", subject)
m.SetBody("text/html", body)
d := mail.NewDialer(config.MailHost, config.MailPort, config.MailUserName, config.MailPassword)
d.TLSConfig = &tls.Config{InsecureSkipVerify: config.SkipTls}
if err := d.DialAndSend(m); err != nil {
Fatal("Error could not send email : %v", err)
}
Info("Email has been sent")
}
func sendMessage(msg string) {
Info("Sending notification... ")
chatId := os.Getenv("TG_CHAT_ID")
body, _ := json.Marshal(map[string]string{
"chat_id": chatId,
"text": msg,
})
url := fmt.Sprintf("%s/sendMessage", getTgUrl())
// Create an HTTP post request
request, err := http.NewRequest("POST", url, bytes.NewBuffer(body))
if err != nil {
panic(err)
}
request.Header.Add("Content-Type", "application/json")
client := &http.Client{}
response, err := client.Do(request)
if err != nil {
panic(err)
}
code := response.StatusCode
if code == 200 {
Info("Notification has been sent")
} else {
body, _ := ioutil.ReadAll(response.Body)
Fatal("Error could not send message, error: %s", string(body))
}
}
func NotifySuccess(notificationData *NotificationData) {
var vars = []string{
"TG_TOKEN",
"TG_CHAT_ID",
}
var mailVars = []string{
"MAIL_HOST",
"MAIL_PORT",
"MAIL_USERNAME",
"MAIL_PASSWORD",
"MAIL_FROM",
"MAIL_TO",
}
//Email notification
err := CheckEnvVars(mailVars)
if err == nil {
body, err := parseTemplate(*notificationData, "email.template")
if err != nil {
Error("Could not parse email template: %v", err)
}
SendEmail(fmt.Sprintf("✅ Database Backup Notification %s", notificationData.Database), body)
}
//Telegram notification
err = CheckEnvVars(vars)
if err == nil {
message, err := parseTemplate(*notificationData, "telegram.template")
if err != nil {
Error("Could not parse email template: %v", err)
}
sendMessage(message)
}
}
func NotifyError(error string) {
var vars = []string{
"TG_TOKEN",
"TG_CHAT_ID",
}
var mailVars = []string{
"MAIL_HOST",
"MAIL_PORT",
"MAIL_USERNAME",
"MAIL_PASSWORD",
"MAIL_FROM",
"MAIL_TO",
}
//Email notification
err := CheckEnvVars(mailVars)
if err == nil {
body, err := parseTemplate(ErrorMessage{
Error: error,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
}, "email-error.template")
if err != nil {
Error("Could not parse email template: %v", err)
}
SendEmail(fmt.Sprintf("🔴 Urgent: Database Backup Failure Notification"), body)
}
//Telegram notification
err = CheckEnvVars(vars)
if err == nil {
message, err := parseTemplate(ErrorMessage{
Error: error,
EndTime: time.Now().Format("2006-01-02 15:04:05"),
}, "telegram-error.template")
if err != nil {
Error("Could not parse email template: %v", err)
}
sendMessage(message)
}
}
func getTgUrl() string {
return fmt.Sprintf("https://api.telegram.org/bot%s", os.Getenv("TG_TOKEN"))
}
func IsValidCronExpression(cronExpr string) bool {
_, err := cron.ParseStandard(cronExpr)
return err == nil
}

View File

@@ -7,19 +7,15 @@
package utils
import (
"bytes"
"encoding/json"
"fmt"
"github.com/robfig/cron/v3"
"github.com/spf13/cobra"
"io"
"io/fs"
"io/ioutil"
"net/http"
"os"
"strconv"
)
// FileExists checks if the file does exist
func FileExists(filename string) bool {
info, err := os.Stat(filename)
if os.IsNotExist(err) {
@@ -134,13 +130,10 @@ func GetEnvVariable(envName, oldEnvName string) string {
return value
}
Warn("%s is deprecated, please use %s instead! ", oldEnvName, envName)
}
}
return value
}
func ShowHistory() {
}
// CheckEnvVars checks if all the specified environment variables are set
func CheckEnvVars(vars []string) error {
@@ -187,71 +180,3 @@ func GetIntEnv(envName string) int {
}
return ret
}
func sendMessage(msg string) {
Info("Sending notification... ")
chatId := os.Getenv("TG_CHAT_ID")
body, _ := json.Marshal(map[string]string{
"chat_id": chatId,
"text": msg,
})
url := fmt.Sprintf("%s/sendMessage", getTgUrl())
// Create an HTTP post request
request, err := http.NewRequest("POST", url, bytes.NewBuffer(body))
if err != nil {
panic(err)
}
request.Header.Add("Content-Type", "application/json")
client := &http.Client{}
response, err := client.Do(request)
if err != nil {
panic(err)
}
code := response.StatusCode
if code == 200 {
Info("Notification has been sent")
} else {
body, _ := ioutil.ReadAll(response.Body)
Error("Message not sent, error: %s", string(body))
}
}
func NotifySuccess(fileName string) {
var vars = []string{
"TG_TOKEN",
"TG_CHAT_ID",
}
//Telegram notification
err := CheckEnvVars(vars)
if err == nil {
message := "[✅ MySQL Backup ]\n" +
"Database has been backed up \n" +
"Backup name is " + fileName
sendMessage(message)
}
}
func NotifyError(error string) {
var vars = []string{
"TG_TOKEN",
"TG_CHAT_ID",
}
//Telegram notification
err := CheckEnvVars(vars)
if err == nil {
message := "[🔴 MySQL Backup ]\n" +
"An error occurred during database backup \n" +
"Error: " + error
sendMessage(message)
}
}
func getTgUrl() string {
return fmt.Sprintf("https://api.telegram.org/bot%s", os.Getenv("TG_TOKEN"))
}
func IsValidCronExpression(cronExpr string) bool {
_, err := cron.ParseStandard(cronExpr)
return err == nil
}