dda-backup/infrastructure/backup/doc/backup_dev_notes.md

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2024-08-19 06:55:14 +00:00
## Init Statemachine
### Inputs
1. `restic-password: ""`
2. `restic-password-to-rotate: ""`
### Manual init the restic repository for the first time
1. apply backup-and-restore pod:
`kubectl scale deployment backup-restore --replicas=1`
2. exec into pod and execute restore pod (press tab to get your exact pod name)
`kubectl exec -it backup-restore-... -- /usr/local/bin/init.sh`
3. remove backup-and-restore pod:
`kubectl scale deployment backup-restore --replicas=0`
### Password Rotation
1. apply backup-and-restore pod:
`kubectl scale deployment backup-restore --replicas=1`
2. add new password to restic repository
`restic key add ....`
=> Trigger ::
field (1) credential current
filed (2) credential new
3. replace field (1) with (2) & clear (2)
4. remove old key - ???
`restic remove ....`
```mermaid
stateDiagram-v2
[*] --> init
init --> backup_ready: trigger, restic-password !empty
backup_ready --> new_password_added: restic-password !empty && restic-password-to-rotate !empty
new_password_added --> backup_ready: restic-password !empty && restic-password-to-rotate empty
```
### First Steps
1. Cloud Testserver hochfahren
2. Dort backup-restore deployment (leeres Secret mgl.?), neues Secret "rotation-credential-secret" als Daten
3. mounten von angelegtem Secret in Pod backup-restore
4. ba*bash*ka Skript in pod starten -> liest Secret ?leer
5. Micha cons.
```mermaid
sequenceDiagram
participant k8s
participant e as entrypoint.sh
participant rm as restic-management.clj
k8s ->> e: cronjob calls
e ->> rm: start-file
rm ->> rm: rotate
activate rm
rm ->> rm: read-backup-repository-state (state)
rm ->> rm: read-secret (backup-secret/restic-password, rotation-credential-secret/rotation-credential)
rm ->> rm: switch
activate rm
rm ->> rm: if init && restic-password != null
activate rm
rm ->> rm: init.sh
rm ->> rm: state init -> backup-ready
deactivate rm
rm ->> rm: if backup-ready && rotation-credential != null
activate rm
rm ->> rm: add-new-password-to-restic-repository.sh
rm ->> rm: state backup-ready -> new-password-added
deactivate rm
rm ->> rm: if new-password-added && rotation-credential == null
activate rm
rm ->> rm: remove-old-password-from-restic-repository.sh
rm ->> rm: state new-password-added -> backup-ready
deactivate rm
deactivate rm
rm ->> rm: store-repository-state (state)
deactivate rm
```