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Note about Docker installations in backup section

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y0nei 2023-08-17 16:51:53 +02:00
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docs/docs/administration/backup.md
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@ -45,3 +45,16 @@
8. Remove the dependencies that you don't need anymore (see installation guide). Make sure you don't remove packages that are still needed for other software that you have running!
[¹]: We assume the database name and user are both "akkoma". If not, you can find the correct name in your config files.
## Docker installations
If running behind Docker, it is required to run the above commands inside of a running database container.
### Example
Running `docker compose run --rm db pg_dump <...>` will fail and return:
```
pg_dump: error: connection to server on socket "/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
Is the server running locally and accepting connections on that socket?"
```
However, first starting just the database container with `docker compose up db -d`, and then running `docker compose exec db pg_dump -d akkoma --format=custom -f </your/backup/dir/akkoma.pgdump>` will successfully generate a database dump.
Then to make the file accessible on the host system you can run `docker compose cp db:</your/backup/dir/akkoma.pgdump> </your/target/location>` to copy if from the container.