ansible-role-borg-backup/README.md

Ansible Role: BorgBackup Client

Set up encrypted, compressed and deduplicated backups using BorgBackup and Borgmatic. Currently supports Debian/Ubuntu and CentOS/Red Hat.

Works great with BorgBase.com - Simple and Secure Hosting for your Borg Repositories.

Main features:

• Set up Borg and Borgmatic
• Add cron job at random time
• Provision new remote BorgBase.com repo for storing backups (optional)

Example Playbook

- hosts: webservers
  roles:
  - role: borgbackup
    borg_encryption_passphrase: CHANGEME
    borg_repository: m5vz9gp4@m5vz9gp4.repo.borgbase.com:repo
    borg_source_directories:
      - /srv/www
      - /var/lib/automysqlbackup
    borg_exclude_patterns:
      - /srv/www/old-sites
    borg_retention_policy:
      keep_hourly: 3
      keep_daily: 7
      keep_weekly: 4
      keep_monthly: 6

Installation

Download from Ansible Galaxy

$ ansible-galaxy install m3nu.ansible_role_borgbackup

Clone to local folder

$ git clone https://github.com/borgbase/ansible-role-borgbackup.git roles/borgbackup

Role Variables

Required Arguments

• borg_repository: Full path to repository. Your own server or BorgBase.com repo. Not required when using auto creation of repositories.
• borg_source_directories: List of local folders to back up.

Optional Arguments

• borg_encryption_passphrase: Password to use for repokey or keyfile. Empty if repo is unencrypted.
• borgmatic_config_name: Name to use for the borgmatic config file. Defaults to config.yml
• borgmatic_large_repo: Does repo-checking on a weekly basis instead of daily. Good for repos with 100GB+ size.
• borgmatic_failure_command: Run this command when an error occurs. E.g. curl -s -F "token=xxx" -F "user=xxx" -F "message=Error during backup" https://api.pushover.net/1/messages.json
• borgmatic_before_backup_command: Run this command before the backup. E.g. dump-a-database /to/file.sql
• borgmatic_after_backup_command: Run this command after the backup. E.g. rm /to/file.sql
• borgmatic_failure_command: Run this command when an error occurs. E.g. curl -s -F "token=xxx" -F "user=xxx" -F "message=Error during backup" https://api.pushover.net/1/messages.json
• borg_exclude_patterns: Paths or patterns to exclude from backup. See official documentation for more.
• borg_one_file_system: Don't cross file-system boundaries. Defaults to true
• borg_exclude_from: Read exclude patterns from one or more separate named files, one pattern per line.
• borg_lock_wait_time: Config maximum seconds to wait for acquiring a repository/cache lock. Defaults to 5 seconds.
• borg_ssh_command: Command to use instead of just "ssh". This can be used to specify ssh options.
• borg_remote_path: Path to the borg executable on the remote. It will default to borg.
• borg_encryption_passcommand: The standard output of this command is used to unlock the encryption key.
• borg_retention_policy: Retention policy for how many backups to keep in each category (daily, weekly, monthly, etc).
• ssh_key_file: Path to a private ssh key file (default is .ssh/id_ed25519). It generates a ed25519 key if the file doesn't exist yet.

Optional Arguments for BorgBase.com repository auto creation

This role can also set up a new repository on BorgBase, using the arguments below. Thanks to Philipp Rintz for contribution this feature.

• create_repo: Whether to let the role create the repository for the server. Default: False
• bb_token: Your BorgBase.com API-Token. Should be Create Only for security reasons.
• bb_region: Which region the backups should be saved in. Choice: "eu" or "us".
• bb_new_sshkey: Whether to use the automatically created SSH_key. Default: True
• bb_sshkey: If there is a key already available on BorgBase.com that should be used, it can be set with this variable. The key needs to be exactly the same, including key-comment.
• bb_append: Should the permission of the newly created repository be append only? Default: True
• bb_quota: To use a quota for the Server. Default: False
• bb_quota_size: Will need to be set if bb_quota is set to True. In Gigabyte.
• bb_alertdays: After how many days of no backup activity should alerts be sent out? Defaults to off.
• bb_repo_name: What name the created repository should have. Defaults to the inventory_hostname.

Use BorgBase Module Standalone

You can also use the BorgBase-Ansible module directly if needed:

- name: Create new repository for server in EU with new SSH_key and quota
  borgbase:
    repository_name: "{{ inventory_hostname }}"
    token: "Your Borgbase API Token"
    new_ssh_key: True
    ssh_key: "{{ some_variable }}"
    append_only: True
    quota_enable: True
    quota: 1000 #in GB
    region: eu
    alertdays: 2
  delegate_to: localhost

Planned features

• Testing
• Multiple repos in one role-call instead of callng this role multiple times.
• Support more OSs, like Red Hat/Fedora/CentOS, SuSE, Gentoo, Slackware, Arch, BSD

Contributing

Pull requests (PR) are welcome, as long as they add features that are relevant for a meaningful number of users. All PRs are tested for style and functionality. To run tests locally (needs Docker):

$ pip install -r requirements-dev.txt
$ molecule test

License

MIT/BSD

Author

© 2018-2020 Manuel Riel and contributors.