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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! 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. [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.