feat: add multi database backup

docs/how-tos/deprecated-configs.md

@@ -0,0 +1,6 @@
+---
+title: Update deprecated configurations
+layout: default
+parent: How Tos
+nav_order: 11
+---

docs/how-tos/mutli-backup.md

@@ -0,0 +1,40 @@
+---
+title: Run multiple database backup schedules in the same container
+layout: default
+parent: How Tos
+nav_order: 11
+---
+
+Multiple backup schedules with different configuration can be configured by mounting a configuration file into `/config/config.yaml`  `/config/config.yml` or by defining an environment variable `BACKUP_CONFIG_FILE=/backup/config.yaml`.
+
+## Configuration file
+
+```yaml
+#cronExpression: "@every 20m" //Optional, for scheduled backups
+cronExpression: "" 
+databases:
+  - host: postgres1
+    port: 5432
+    name: database1
+    user: database1
+    password: password
+    path: /s3-path/database1 #For SSH or FTP you need to define the full path (/home/toto/backup/)
+  - host: postgres2
+    port: 5432
+    name: lldap
+    user: lldap
+    password: password
+    path: /s3-path/lldap #For SSH or FTP you need to define the full path (/home/toto/backup/)
+  - host: postgres3
+    port: 5432
+    name: keycloak
+    user: keycloak
+    password: password
+    path: /s3-path/keycloak #For SSH or FTP you need to define the full path (/home/toto/backup/)
+  - host: postgres4
+    port: 5432
+    name: joplin
+    user: joplin
+    password: password
+    path: /s3-path/joplin #For SSH or FTP you need to define the full path (/home/toto/backup/)
+```

pkg/backup.go

@@ -24,9 +24,7 @@ func StartBackup(cmd *cobra.Command) {
 	config := initBackupConfig(cmd)
 	//Load backup configuration file
 	configFile, err := loadConfigFile()
-	if err == nil {
-		startMultiBackup(config, configFile)
-	} else {
+	if err != nil {
 		dbConf = initDbConfig(cmd)
 		if config.cronExpression == "" {
 			BackupTask(dbConf, config)
@@ -37,11 +35,13 @@ func StartBackup(cmd *cobra.Command) {
 				utils.Fatal("Cron expression is not valid: %s", config.cronExpression)
 			}
 		}
+	} else {
+		startMultiBackup(config, configFile)
 	}
 
 }
 
-// Run in scheduled mode
+// scheduledMode Runs backup in scheduled mode
 func scheduledMode(db *dbConfig, config *BackupConfig) {
 	utils.Info("Running in Scheduled mode")
 	utils.Info("Backup cron expression:  %s", config.cronExpression)
@@ -68,6 +68,8 @@ func scheduledMode(db *dbConfig, config *BackupConfig) {
 	defer c.Stop()
 	select {}
 }
+
+// multiBackupTask backup multi database
 func multiBackupTask(databases []Database, bkConfig *BackupConfig) {
 	for _, db := range databases {
 		//Check if path is defined in config file
@@ -100,7 +102,7 @@ func BackupTask(db *dbConfig, config *BackupConfig) {
 	}
 }
 func startMultiBackup(bkConfig *BackupConfig, configFile string) {
-	utils.Info("Starting multiple backup jobs...")
+	utils.Info("Starting multiple backup job...")
 	var conf = &Config{}
 	conf, err := readConf(configFile)
 	if err != nil {
@@ -148,10 +150,6 @@ func startMultiBackup(bkConfig *BackupConfig, configFile string) {
 	}
 
 }
-func intro() {
-	utils.Info("Starting PostgreSQL Backup...")
-	utils.Info("Copyright (c) 2024 Jonas Kaninda ")
-}
 
 // BackupDatabase backup database
 func BackupDatabase(db *dbConfig, backupFileName string, disableCompression bool) {
@@ -182,7 +180,7 @@ func BackupDatabase(db *dbConfig, backupFileName string, disableCompression bool
 			log.Fatal(err)
 		}
 		// save output
-		file, err := os.Create(fmt.Sprintf("%s/%s", tmpPath, backupFileName))
+		file, err := os.Create(filepath.Join(tmpPath, backupFileName))
 		if err != nil {
 			log.Fatal(err)
 		}
@@ -208,7 +206,7 @@ func BackupDatabase(db *dbConfig, backupFileName string, disableCompression bool
 		gzipCmd := exec.Command("gzip")
 		gzipCmd.Stdin = stdout
 		// save output
-		gzipCmd.Stdout, err = os.Create(fmt.Sprintf("%s/%s", tmpPath, backupFileName))
+		gzipCmd.Stdout, err = os.Create(filepath.Join(tmpPath, backupFileName))
 		gzipCmd.Start()
 		if err != nil {
 			log.Fatal(err)
@@ -243,6 +241,7 @@ func localBackup(db *dbConfig, config *BackupConfig) {
 	}
 	//Delete temp
 	deleteTemp()
+	utils.Info("Backup completed successfully")
 }
 
 func s3Backup(db *dbConfig, config *BackupConfig) {
@@ -283,6 +282,8 @@ func s3Backup(db *dbConfig, config *BackupConfig) {
 	utils.NotifySuccess(finalFileName)
 	//Delete temp
 	deleteTemp()
+	utils.Info("Backup completed successfully")
+
 }
 func sshBackup(db *dbConfig, config *BackupConfig) {
 	utils.Info("Backup database to Remote server")
@@ -318,6 +319,8 @@ func sshBackup(db *dbConfig, config *BackupConfig) {
 	utils.NotifySuccess(finalFileName)
 	//Delete temp
 	deleteTemp()
+	utils.Info("Backup completed successfully")
+
 }
 func ftpBackup(db *dbConfig, config *BackupConfig) {
 	utils.Info("Backup database to the remote FTP server")
@@ -353,6 +356,7 @@ func ftpBackup(db *dbConfig, config *BackupConfig) {
 	utils.NotifySuccess(finalFileName)
 	//Delete temp
 	deleteTemp()
+	utils.Info("Backup completed successfully")
 }
 
 func encryptBackup(config *BackupConfig) {

pkg/config.go

@@ -7,7 +7,6 @@
 package pkg
 
 import (
-	"errors"
 	"fmt"
 	"github.com/jkaninda/pg-bkup/utils"
 	"github.com/spf13/cobra"
@@ -271,5 +270,5 @@ func loadConfigFile() (string, error) {
 	if err == nil {
 		return backupConfigFile, nil
 	}
-	return "", errors.New("backup config file not found")
+	return "", fmt.Errorf("backup config file not found")
 }

pkg/helper.go

@@ -17,6 +17,11 @@ import (
 	"time"
 )
 
+func intro() {
+	utils.Info("Starting PostgreSQL Backup...")
+	utils.Info("Copyright (c) 2024 Jonas Kaninda ")
+}
+
 // copyToTmp copy file to temporary directory
 func copyToTmp(sourcePath string, backupFileName string) {
 	//Copy backup from storage to /tmp
@@ -186,8 +191,9 @@ func checkPrKeyFile(prKey string) (string, error) {
 	// Return an error if neither file exists
 	return "", fmt.Errorf("no public key file found")
 }
+
+// readConf reads config file and returns Config
 func readConf(configFile string) (*Config, error) {
-	//configFile := filepath.Join("./", filename)
 	if utils.FileExists(configFile) {
 		buf, err := os.ReadFile(configFile)
 		if err != nil {
@@ -204,6 +210,8 @@ func readConf(configFile string) (*Config, error) {
 	}
 	return nil, fmt.Errorf("config file %q not found", configFile)
 }
+
+// checkConfigFile checks config files and returns one config file
 func checkConfigFile(filePath string) (string, error) {
 	// Define possible config file names
 	configFiles := []string{filepath.Join(workingDir, "config.yaml"), filepath.Join(workingDir, "config.yml"), filePath}

utils/utils.go

@@ -20,6 +20,7 @@ import (
 	"strconv"
 )
 
+// FileExists checks if the file does exist
 func FileExists(filename string) bool {
 	info, err := os.Stat(filename)
 	if os.IsNotExist(err) {