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Backupbottwo.md
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Backupbottwo.md
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---
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title: Backupbot Specification
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---
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# For Operators
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## Deployment
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**1. Create a new app:**
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```
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abra app new backup-bot-two
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```
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**2. Configure :**
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## Usage
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Run the cronjob that creates a backup, including the push notifications and docker logging: abra app cmd <backupbot_name> app run_cron
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### Create a backup of all apps:
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```
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abra app run <backupbot_name> app -- backup create
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```
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The apps to backup up need to be deployed
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### Create an individual backup:
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```
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abra app run <backupbot_name> app -- backup --host <target_app_name> create
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```
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### Create a backup to a local repository:
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```
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abra app run <backupbot_name> app -- backup create -r /backups/restic
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```
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It is recommended to shutdown/undeploy an app before restoring the data
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### Restore the latest snapshot of all including apps:
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```
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abra app run <backupbot_name> app -- backup restore
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```
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### Restore a specific snapshot of an individual app:
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```
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abra app run <backupbot_name> app -- backup --host <target_app_name> restore --snapshot <snapshot_id>
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```
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### Show all snapshots:
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```
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abra app run <backupbot_name> app -- backup snapshots
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```
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### Show all snapshots containing a specific app:
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```
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abra app run <backupbot_name> app -- backup --host <target_app_name> snapshots
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```
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### Show all files inside the latest snapshot (can be very verbose):
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```
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abra app run <backupbot_name> app -- backup ls
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```
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### Show specific files inside a selected snapshot:
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```
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abra app run <backupbot_name> app -- backup ls --snapshot <snapshot_id> --path /var/lib/docker/volumes/
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```
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### Download files from a snapshot:
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filename=$(abra app run <backupbot_name> app -- backup download --snapshot <snapshot_id> --path <absolute_path>)
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abra app cp <backupbot_name> app:$filename .
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# For Maintainers
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TODO:
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pre/post hooks
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- Simple command
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- accessing secrets
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- more complex scripts mounted in the container
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From the perspective of the recipe maintainer, backup/restore is just more
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`deploy: ...` labels. Tools can read these labels and then perform the
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backup/restore logic.
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## Tools
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Two of the current "blessed" options are
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[`backup-bot-two`](https://git.coopcloud.tech/coop-cloud/backup-bot-two) &
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[`abra`](https://git.coopcloud.tech/coop-cloud/abra).
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### `backup-bot-two`
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`backup-bot-two` is a recipe which gets deployed on the server, it can perform automatic backups.
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Please see the [`README.md`](https://git.coopcloud.tech/coop-cloud/backup-bot-two#backupbot-ii) for the full docs.
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### `abra`
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`abra` will read labels and store backups in `~/.abra/backups/...` .
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## Backup
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Unless otherwise stated all labels should be added to the main service (which should be named `app`).
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1. Enable backups for the recipe:
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You need to enable backups for the recipe by adding the following label:
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```
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backupbot.backup=true
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```
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2. Decide wich volumes should be backed up:
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By default all volumes will be backed up. To disable a certain volume you can add the following label:
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```
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backupbot.backup.volumes.{volume_name}=false
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```
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3. Decide which path should be backed up on each volume
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By default all files get backed up for a volume. To only include certain paths you can add the following label:
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```
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backupbot.backup.volumes.{volume_name}.path=/mypath1/foo,/mypath2/bar
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```
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Note: You cann include multiple paths by providing a comma seperated list
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Note: All paths are specified relativ to the volume root
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4. Run commands before the backup
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For certain services like a database it is not reccomend to just backup files, because the backup might end up in a corrupted state. Instead it is reccomended to make a database dump. You can run arbitrary commands in any container before the files are backed up.
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To do this add the following label to the service on which you want the command being run:
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```
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backupbot.backup.pre-hook=mysqldump -u root -pghost ghost --tab /var/lib/foo
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```
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5. Run commands after the backup
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Sometimes you want to clean up after the backup. You can run arbitrary commands in any container after the files were backed up.
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To do this add the following label to the service on which you want the command being run:
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```
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backupbot.backup.post-hook=rm -rf /var/lib/mysql-files/*
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```
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### Testing the backup
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That's it your recipe can now be backed up. But how can you make sure your configuration is correct?
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TODO:
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### Examples
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## Restore
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Restore, in this context means, "moving a compressed archive back to the
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container backup paths". So, if you set
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`backupbot.backup.path=/var/lib/foo,/var/lib/bar` and you have a backed up
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archive, tooling will unzip files in the archive back to those paths.
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In the case of restoring database tables, you can use the `pre-hook` &
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`post-hook` commands to run the insertion logic.
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## Configuration Examples
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### Mysql
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### Postgres
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# Specification
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Backups are enabled for the whole compose stack.
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By default all volumes are backup up.
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It is possible to disable backups for a volume.
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By default the whole volume is backed up.
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It is possible to define a path or a list of paths for a volume to backup only those.
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## Summary
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Creating automated backups of docker swarm services is an often needed task. This specification describes how backups can be configured via labels in a standardised way.
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## Requirements
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The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this specification are to be interpreted as described in [RFC-2119].
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When backing up a docker stack you MUST first check if the `backupbot.backup`. It MUST be set to true, for the backup to happen.
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## Backup
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To enable backups for a docker stack, the `backupbot.backup=true` label MUST be on any of its services. It SHOULD be declared on the first service.
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A `backupbot.backup.pre-hook` MAY be set on a service. When set the command MUST be executed inside the running container of the service before backup up files.
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By default all volumes MUST be backed up. A volume MAY be excluded from backing up when `backupbot.backup.volumes.{volume_name}=false` is set, where `{volume_name}` is the name of the volume.
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By default all files MUST be backed up on a volume. `backupbot.backup.volumes.{volume_name}.path` MAY be set to only include those paths.
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A `backupbot.backup.post-hook` MAY be set on a service. When set the command MUST be executed inside the running container of the service after backing up all files.
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A backup implementation SHOULD provide the backup of one or multiple stacks in a `.tar.gz` format.
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## Restore
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A `backupbot.restore.pre-hook` MAY be set on a service. When set the command MUST be executed inside the running container of the service before restoring backup files.
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By default all files MUST be restored into their volume. A volume or path MAY be excluded from restoring.
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A `backupbot.restore.post-hook` MAY be set on a service. When set the command MUST be executed inside the running container of the service after restoring backup files.
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## Labels
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### `backupbot.backup`
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**Type:** boolean
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**Default:** false
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**Description:**
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Enables backupbot for this compose stack. It SHOULD be added to the first service.
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**Example:**
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```
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backupbot.backup: true
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```
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### `backupbot.backup.volumes.{volume_name}`
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**Type:** boolean
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**Description:** false, true when the given volume has a path specified
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Enables backups for the {volume_name} volume.
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**Example:**
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```
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backupbot.backup.volumes.{volume_name}: true
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```
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### `backupbot.backup.volumes.{volume_name}.path`
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**Type:** string
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**Default:** ""
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**Description:**
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A comma seperated list of paths. When one or more paths are set, it only backups up those on the given volume instead of the whole volume.
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**Example:**
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```
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backupbot.backup.volumes.{volume_name}.path: '/var/lib/mariadb/dump.sql.gz'
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```
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### `backupbot.backup.pre-hook`
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**Type:** string
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**Default:** ""
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**Description:**
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A command, that gets executed before the files are backuped.
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TODO: multiple commands?
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**Example:**
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```
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backupbot.backup.pre-hook: 'mysqldump -u root -p"$(cat /run/secrets/db_root_password)" -f /volume_path/dump.db'
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```
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### `backupbot.backup.post-hook`
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**Type:** string
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**Default:** ""
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**Description:**
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A command, that gets executed after the files are backuped.
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TODO: what todo if the backup fails? should this always run?
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**Example:**
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```
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backupbot.backup.post-hook: "rm -rf /volume_path/dump.db"
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```
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### `backupbot.restore.pre-hook`
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**Type:** string
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**Default:** ""
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**Description:**
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A command, that gets executed before the files are restored.
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**Example:**
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```
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backupbot.restore.pre-hook: "lock db"
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```
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### `backupbot.restore.post-hook`
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**Type:** string
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**Default:** ""
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**Description:**
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A command, that gets executed after the files are restored.
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TODO: what todo if the restore fails? should this always run?
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**Example:**
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```
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backupbot.restore.post-hook: "sqldump dump.sql && unlock db && rm dump.sql"
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```
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