Backupbot Specification #258

Merged
decentral1se merged 8 commits from p4u1/docs.coopcloud.tech:backupbottwo-spec into main 2024-10-29 08:04:39 +00:00
Showing only changes of commit 1d054aa2e8 - Show all commits

View File

@ -10,7 +10,7 @@ The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "S
## Backup
p4u1 marked this conversation as resolved
Review

Maybe remove this, seems the same as line 15 "To enable backups"

Maybe remove this, seems the same as line 15 "To enable backups"
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.
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. The label MUST be only set once. When the label is set multiple times, the implementation SHOULD show an error.
### Volumes and paths

Is the behaviour defined if one service sets backupbot.backup=true and another sets it to backupbot.backup=false?

Is the behaviour defined if one service sets `backupbot.backup=true` and another sets it to `backupbot.backup=false`?
@ -22,6 +22,8 @@ By default all files MUST be backed up on a volume. `backupbot.backup.volumes.{v
A `backupbot.backup.pre-hook` and `backupbot.backup.post-hook` MAY be set on a service. When set the command MUST be executed inside the running container of the service before/after backing up files.
There is no guaranteed order in which different hooks MUST be executed.
TODO: escaping
### Output
decentral1se marked this conversation as resolved
Review

I think {volume_name} can be confusing in this case. Because in backupbot.backup.volumes.{volume_name}.path the {volume_name} would be for example assets, while in the path /var/lib/docker/volumes/{volume_name} it would be appname_example_com_assets.
Maybe writing /var/lib/docker/volumes/{stack_name}_{volume_name} would clearer.

I think `{volume_name}` can be confusing in this case. Because in `backupbot.backup.volumes.{volume_name}.path` the `{volume_name}` would be for example `assets`, while in the path `/var/lib/docker/volumes/{volume_name}` it would be `appname_example_com_assets`. Maybe writing `/var/lib/docker/volumes/{stack_name}_{volume_name}` would clearer.
A backup implementation SHOULD provide the backup of one or multiple stacks in a `.tar.gz` format. In that case each volume MUST be in `/var/lib/docker/volumes/{volume_name}`, where `{volume_name}` is the name of each volume that got backed up.
@ -69,12 +71,17 @@ backupbot.backup.volumes.{volume_name}: false
**Description:**
A comma seperated list of paths. When one or more paths are set, it only backs up those on the given volume instead of the whole volume.
p4u1 marked this conversation as resolved Outdated

seperated -> separated

backups up -> backs up

seperated -> separated backups up -> backs up
**Example:**
**Example 1:**
```
backupbot.backup.volumes.{volume_name}.path: '/var/lib/mariadb/dump.sql.gz'
```
**Example 2:**
```
backupbot.backup.volumes.{volume_name}.path: '/var/lib/myapp/foo,/var/lib/myapp/bar'
Review

The value MUST be a valid path relative to the volume root.

Writing in this example and the one above absolute paths can be confusing.

> The value MUST be a valid path **relative** to the volume root. Writing in this example and the one above absolute paths can be confusing.
```
### `backupbot.backup.pre-hook`
**Type:** string