Merge pull request #168 from jkaninda/nightly

Nightly

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.23.4 AS build
+FROM golang:1.23.5 AS build
 WORKDIR /app
 ARG appVersion=""
 
@@ -10,7 +10,7 @@ RUN go mod download
 # Build
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-X 'github.com/jkaninda/mysql-bkup/utils.Version=${appVersion}'" -o /app/mysql-bkup
 
-FROM alpine:3.21.0
+FROM alpine:3.21.2
 ENV TZ=UTC
 ARG WORKDIR="/config"
 ARG BACKUPDIR="/backup"

docs/how-tos/mutli-backup.md

@@ -8,51 +8,62 @@ nav_order: 11
 
 # Multiple Backup Schedules
 
-You can configure multiple backup schedules with different configurations by using a configuration file. 
-
-This file can be mounted into the container at `/config/config.yaml`, `/config/config.yml`, or specified via the `BACKUP_CONFIG_FILE` environment variable.
+This tool supports running multiple database backup schedules within the same container.
+You can configure these schedules with different settings using a **configuration file**. This flexibility allows you to manage backups for multiple databases efficiently.
 
 ---
 
-## Configuration File
+## Configuration File Setup
 
-The configuration file allows you to define multiple databases and their respective backup settings. 
+The configuration file can be mounted into the container at `/config/config.yaml`, `/config/config.yml`, or specified via the `BACKUP_CONFIG_FILE` environment variable.
 
-Below is an example configuration file:
+### Key Features:
+- **Global Environment Variables**: Use these for databases that share the same configuration.
+- **Database-Specific Overrides**: Override global settings for individual databases by specifying them in the configuration file or using the database name as a suffix in the variable name (e.g., `DB_HOST_DATABASE1`).
+- **Global Cron Expression**: Define a global `cronExpression` in the configuration file to schedule backups for all databases. If omitted, backups will run immediately.
+- **Configuration File Path**: Specify the configuration file path using:
+    - The `BACKUP_CONFIG_FILE` environment variable.
+    - The `--config` or `-c` flag for the backup command.
+
+---
+
+## Configuration File Example
+
+Below is an example configuration file (`config.yaml`) that defines multiple databases and their respective backup settings:
 
 ```yaml
-# Optional: Define a global cron expression for scheduled backups
-# cronExpression: "@every 20m"
+# Optional: Define a global cron expression for scheduled backups.
+# Example: "@every 20m" (runs every 20 minutes). If omitted, backups run immediately.
 cronExpression: ""
 
 databases:
-  - host: mysql1
-    port: 3306
-    name: database1
-    user: database1
-    password: password
-    path: /s3-path/database1  # For SSH or FTP, define the full path (e.g., /home/toto/backup/)
+  - host: mysql1       # Optional: Overrides DB_HOST or uses DB_HOST_DATABASE1.
+    port: 3306            # Optional: Default is 5432. Overrides DB_PORT or uses DB_PORT_DATABASE1.
+    name: database1       # Required: Database name.
+    user: database1       # Optional: Overrides DB_USERNAME or uses DB_USERNAME_DATABASE1.
+    password: password    # Optional: Overrides DB_PASSWORD or uses DB_PASSWORD_DATABASE1.
+    path: /s3-path/database1  # Required: Backup path for SSH, FTP, or S3 (e.g., /home/toto/backup/).
 
-  - host: mysql2
-    port: 3306
-    name: lldap
-    user: lldap
-    password: password
-    path: /s3-path/lldap  # For SSH or FTP, define the full path (e.g., /home/toto/backup/)
+  - host: mysql2       # Optional: Overrides DB_HOST or uses DB_HOST_LLAP.
+    port: 3306            # Optional: Default is 5432. Overrides DB_PORT or uses DB_PORT_LLAP.
+    name: lldap           # Required: Database name.
+    user: lldap           # Optional: Overrides DB_USERNAME or uses DB_USERNAME_LLAP.
+    password: password    # Optional: Overrides DB_PASSWORD or uses DB_PASSWORD_LLAP.
+    path: /s3-path/lldap  # Required: Backup path for SSH, FTP, or S3 (e.g., /home/toto/backup/).
 
-  - host: mysql3
-    port: 3306
-    name: keycloak
-    user: keycloak
-    password: password
-    path: /s3-path/keycloak  # For SSH or FTP, define the full path (e.g., /home/toto/backup/)
+  - host: mysql3       # Optional: Overrides DB_HOST or uses DB_HOST_KEYCLOAK.
+    port: 3306            # Optional: Default is 5432. Overrides DB_PORT or uses DB_PORT_KEYCLOAK.
+    name: keycloak        # Required: Database name.
+    user: keycloak        # Optional: Overrides DB_USERNAME or uses DB_USERNAME_KEYCLOAK.
+    password: password    # Optional: Overrides DB_PASSWORD or uses DB_PASSWORD_KEYCLOAK.
+    path: /s3-path/keycloak  # Required: Backup path for SSH, FTP, or S3 (e.g., /home/toto/backup/).
 
-  - host: mysql4
-    port: 3306
-    name: joplin
-    user: joplin
-    password: password
-    path: /s3-path/joplin  # For SSH or FTP, define the full path (e.g., /home/toto/backup/)
+  - host: mysql4       # Optional: Overrides DB_HOST or uses DB_HOST_JOPLIN.
+    port: 3306            # Optional: Default is 5432. Overrides DB_PORT or uses DB_PORT_JOPLIN.
+    name: joplin          # Required: Database name.
+    user: joplin          # Optional: Overrides DB_USERNAME or uses DB_USERNAME_JOPLIN.
+    password: password    # Optional: Overrides DB_PASSWORD or uses DB_PASSWORD_JOPLIN.
+    path: /s3-path/joplin  # Required: Backup path for SSH, FTP, or S3 (e.g., /home/toto/backup/).
 ```
 
 ---
@@ -88,9 +99,5 @@ networks:
 
 ---
 
-## Key Notes
 
-- **Global Cron Expression**: You can define a global `cronExpression` in the configuration file to schedule backups for all databases. If omitted, backups will run immediately.
-- **Database-Specific Paths**: For SSH or FTP storage, ensure the `path` field contains the full remote path (e.g., `/home/toto/backup/`).
-- **Environment Variables**: Use the `BACKUP_CONFIG_FILE` environment variable to specify the path to the configuration file.
-- **Security**: Avoid hardcoding sensitive information like passwords in the configuration file. Use environment variables or secrets management tools instead.
+

pkg/config.go

@@ -30,6 +30,7 @@ import (
 	"github.com/spf13/cobra"
 	"os"
 	"strconv"
+	"strings"
 )
 
 type Database struct {
@@ -127,6 +128,11 @@ func initDbConfig(cmd *cobra.Command) *dbConfig {
 }
 
 func getDatabase(database Database) *dbConfig {
+	// Set default values from environment variables if not provided
+	database.User = getEnvOrDefault(database.User, "DB_USERNAME", database.Name, "")
+	database.Password = getEnvOrDefault(database.Password, "DB_PASSWORD", database.Name, "")
+	database.Host = getEnvOrDefault(database.Host, "DB_HOST", database.Name, "")
+	database.Port = getEnvOrDefault(database.Port, "DB_PORT", database.Name, "3306")
 	return &dbConfig{
 		dbHost:     database.Host,
 		dbPort:     database.Port,
@@ -136,6 +142,20 @@ func getDatabase(database Database) *dbConfig {
 	}
 }
 
+// Helper function to get environment variable or use a default value
+func getEnvOrDefault(currentValue, envKey, suffix, defaultValue string) string {
+	if currentValue != "" {
+		return currentValue
+	}
+	if suffix != "" {
+		envSuffix := os.Getenv(fmt.Sprintf("%s_%s", envKey, strings.ToUpper(suffix)))
+		if envSuffix != "" {
+			return envSuffix
+		}
+	}
+	return utils.EnvWithDefault(envKey, defaultValue)
+}
+
 // loadSSHConfig loads the SSH configuration from environment variables
 func loadSSHConfig() (*SSHConfig, error) {
 	utils.GetEnvVariable("SSH_HOST", "SSH_HOST_NAME")

utils/config.go

@@ -83,3 +83,13 @@ func backupReference() string {
 const templatePath = "/config/templates"
 
 var DatabaseName = ""
+var vars = []string{
+	"TG_TOKEN",
+	"TG_CHAT_ID",
+}
+var mailVars = []string{
+	"MAIL_HOST",
+	"MAIL_PORT",
+	"MAIL_FROM",
+	"MAIL_TO",
+}

utils/notification.go

@@ -107,19 +107,6 @@ func sendMessage(msg string) error {
 }
 func NotifySuccess(notificationData *NotificationData) {
 	notificationData.BackupReference = backupReference()
-	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 {
@@ -147,18 +134,6 @@ func NotifySuccess(notificationData *NotificationData) {
 	}
 }
 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)