Ansible Role: restic

Description

Restic is a versatile Go based backup solution which supports multiple backends, deduplication and incremental backups.

This role installs restic on a client, configures the backup repositories and optionally sets up cronjobs to run said backups. Aditionally, it will setup executable scripts to run a Backup manually.

This Project borrows heavily from the donat-b/ansible-restic ansible role. We try to make this role more semver deployment friendly by allowing to use version tags and keep these snapshots and adapting the automated backup definition for use with windows systems.

Requirements

• bzip2

Role Variables

Name	Default	Description
restic_url	''	The URL to download restic from. Use this variable to overwrite the default
restic_version	'0.9.5'	The version of Restic to install
restic_download_path	'/opt/restic'	Download location for the restic binary
restic_install_path	'/usr/local/bin'	Install location for the restic binary
restic_script_dir	'~/restic'	Location of the generated backup scripts
restic_repos	{}	A dictionary of repositories where snapshots are stored
restic_backups	[]	A list of dictionaries specifying the files and directories to be backed up
restic_create_cron	false	Should a cronjob be created for each backup
restic_dir_owner	'{{ansible_user}}'	The owner of all created dirs
restic_dir_group	'{{ansible_user}}'	The group of all created dirs

Repos

Restic stores data in repositories. You have to specify at least one repository to be able to use this role. A repository can be local or remote (see the official documentation).

Using an SFTP repository

For using an SFTP backend, the user needs passwordless access to the host. Please make sure to distribute ssh keys accordingly, as this is outside of the scope of this role.

Available variables:

Name	Required	Description
location	yes	The location of the Backend. Currently, Local and SFTP are supported
password	yes	The password used to secure this repository
init	no	Describes if the repository should be initialized or not. Use false if you are backuping to an already existing repo.

Example:

restic_repos:
  local:
    location: /srv/restic-repo
    password: securepassword1
    init: true
  remote:
    location: sftp:user@host:/srv/restic-repo
    password: securepassword2
    init: true

Backups

A backup specifies a directory or file to be backuped. A backup is written to a Repository defined in restic_repos.

Available variables:

Name	Required	Description
name	yes	The name of this backup. Used together with pruning and needs to be unique.
repo	yes	The name of the repository to backup to.
src	yes	The source directory or file
stdin	no	Is this backup created from a stdin?
stdin_cmd	no (yes if stdin == true)	The command to produce the stdin.
stdin_filename	no	The filename used in the repository.
tags	no	Array of default tags
keep_last	no	If set, only keeps the last n snapshots.
keep_hourly	no	If set, only keeps the last n hourly snapshots.
keep_daily	no	If set, only keeps the last n daily snapshots.
keep_weekly	no	If set, only keeps the last n weekly snapshots.
keep_monthly	no	If set, only keeps the last n monthly snapshots.
keep_yearly	no	If set, only keeps the last n yearly snapshots.
keep_within	no	If set, only keeps snapshots in this time period.
keep_tag	no	If set, keep snapshots with this tags.

Dependencies

none

Example Playbook

- hosts: all
  roles:
    - restic

Author

• Matthias Leutenegger

License

This project is under the MIT License. See the LICENSE file for the full license text.

Copyright

(c) 2019, Arillso