mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-12-12 05:54:51 +00:00
45 lines
1.4 KiB
Markdown
Vendored
45 lines
1.4 KiB
Markdown
Vendored
# Backup and Restore Guide
|
|
|
|
## Docker and Ansible
|
|
|
|
When using docker or ansible, there should be a `volumes` folder, which contains both the database, and all the pictures. Copy this folder to the new instance to restore your data.
|
|
|
|
### Incremental Database backup
|
|
|
|
To incrementally backup the DB to an `.sql` file, you can run:
|
|
|
|
```bash
|
|
docker exec -t FOLDERNAME_postgres_1 pg_dumpall -c -U lemmy > lemmy_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql
|
|
```
|
|
### A Sample backup script
|
|
|
|
```bash
|
|
#!/bin/sh
|
|
# DB Backup
|
|
ssh MY_USER@MY_IP "docker exec -t FOLDERNAME_postgres_1 pg_dumpall -c -U lemmy" > ~/BACKUP_LOCATION/INSTANCE_NAME_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql
|
|
|
|
# Volumes folder Backup
|
|
rsync -avP -zz --rsync-path="sudo rsync" MY_USER@MY_IP:/LEMMY_LOCATION/volumes ~/BACKUP_LOCATION/FOLDERNAME
|
|
```
|
|
|
|
### Restoring the DB
|
|
|
|
If you need to restore from a `pg_dumpall` file, you need to first clear out your existing database
|
|
|
|
```bash
|
|
# Drop the existing DB
|
|
docker exec -i FOLDERNAME_postgres_1 psql -U lemmy -c "DROP SCHEMA public CASCADE; CREATE SCHEMA public;"
|
|
|
|
# Restore from the .sql backup
|
|
cat db_dump.sql | docker exec -i FOLDERNAME_postgres_1 psql -U lemmy # restores the db
|
|
|
|
# This also might be necessary when doing a db import with a different password.
|
|
docker exec -i FOLDERNAME_postgres_1 psql -U lemmy -c "alter user lemmy with password 'bleh'"
|
|
```
|
|
|
|
## More resources
|
|
|
|
- https://stackoverflow.com/questions/24718706/backup-restore-a-dockerized-postgresql-database
|
|
|
|
|