bbtsoftwareag/mssql-backup Docker Image Overview

bbtsoftwareag/mssql-backup

Docker image for periodic backups from a Microsoft SQL Server container

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Docker image for backup of Microsoft SQL Server

Docker image to create regular backups of a Microsoft SQL Server image.

Information

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General

Topic	Description
Image	See Docker Hub.
Source	See GitHub.

Usage

This container can create backups on a Microsoft SQL Server container.

NOTE: The backup is written to a directory /backup inside the Microsoft SQL Server container, not to a volume in the backup container. For using the cleanup feature attach the same /backup volume in the bbtsoftwareag/mssql-backup container.

Tag	Description	Size
latest	Latest master build	!Size
0.1.0	Release 0.1.0	!Size
0.2.0	Release 0.2.0	!Size
0.3.0	Release 0.3.0	!Size
0.4.0	Release 0.4.0	!Size
0.5.0	Release 0.5.0	!Size
0.5.1	Release 0.5.1	!Size

Configuration

These environment variables are supported:

Environment variable	Default value	Description
DB_SERVER	`mssql`	Name or address of the database server to backup. Normally this should be the name of the Microsoft SQL Server service.
DB_USER	`SA`	User used to connect to the database server.
DB_PASSWORD		Password used to connect to the database server.
DB_NAMES		Names of the databases for which a backup should be created.
TZ		Timezone to use.
CRON_SCHEDULE	`0 1 * * sun`	Cron schedule for running backups. NOTE: There is no check if there's already a backup running when starting the backup job. Therefore time interval needs to be longer than the maximum expected backup time for all databases.
BACKUP_CLEANUP	`false`	Set to "true" if you want to let the cronjob remove files older than $BACKUP_AGE days
BACKUP_AGE	`7`	Number of days to keep backups in backup directory
SKIP_BACKUP_LOG	`false`	Skip step to backup the transaction log .
PACK		Possible values: `tar`, `zip`. If defined, compresses the output files into a single `.tar.gz` (or `zip`)-File.
ZIP_PASSWORD		Sets the password for the zip to the given value. Only works if `PACK` is set to `zip`
PUSH_REMOTE_MODE		The possible values `move` or `copy` activates pushing the backup files to a mapped remote directory. The volume `remote` must be mapped.
SMTP_HOST		If this is set, email reporting is enabled by sending the results of the backup process to `MAIL_TO`. You pretty much have to define all the other `SMTP_*` variables, when the host is defined.
SMTP_PORT		The port of the SMTP server
SMTP_USER		The username used to login against the SMTP server
SMTP_PASS		The password for connecting to the SMTP server
SMTP_FROM		The E-mail address from which mails should be sent from
SMTP_TLS	`on`	Whether TLS should be used when connecting to the SMTP server
MAIL_TO		The target E-mail address for receiving mail reports

Examples

Docker Compose

The following example will create backups of the databases MyFirstDatabaseToRestore and MySecondDatabaseToRestore running inside the db container every day at 01.00 CEST and stores it in the /storage/backup directory on the host machine.

yaml
version: '3.7'

services:
  db:
    image: mcr.microsoft.com/mssql/server
    volumes:
      - /storage/backup:/backup
    environment:
      - ACCEPT_EULA=Y
      - MSSQL_PID=Express
      - SA_PASSWORD=MySecre(12)tPassword
    networks:
      - default
  backup:
    image: bbtsoftwareag/mssql-backup
    # for using the cleanup feature, use the backup volume from db.
    # volumes:
    #   - /storage/backup:/backup
    environment:
      - TZ=Europe/Zurich
      - DB_SERVER=db
      - DB_USER=SA
      - DB_PASSWORD=MySecre(12)tPassword
      - "DB_NAMES=
          MyFirstDatabaseToRestore
          MySecondDatabaseToRestore"
      - CRON_SCHEDULE=0 1 * * *
    networks:
      - default