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Document running container with lower privileges (fixes #66)

Dieser Commit ist enthalten in:
Miroslav Prasil 2018-07-11 11:31:13 +01:00
Ursprung 3f56730b8a
Commit 03ce42e1cf

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@ -220,3 +220,22 @@ This is optional, these are only used to store tokens of users currently logged
### 4. Icon Cache ### 4. Icon Cache
This is optional, the icon cache can redownload itself however if you have a large cache, it may take a long time. By default it is located in `$DATA_FOLDER/icon_cache` This is optional, the icon cache can redownload itself however if you have a large cache, it may take a long time. By default it is located in `$DATA_FOLDER/icon_cache`
## Runing the server with non-root user
The root user inside the container is already pretty limited in what it can do, so the default setup should be secure enough. However if you wish to go the extra mile to avoid using root even in container, here's how you can do that:
1. Create a data folder that's owned by non-root user, so you can use that user to write persistent data. Get the user `id`. In linux you can run `stat <folder_name>` to get/verify the owner ID.
2. When you run the container, you need to provide the user ID as one of the parameters. Note that this needs to be in the numeric form and not the user name, because docker would try to find such user defined inside the image, which would likely not be there or it would have different ID than your local user and hence wouldn't be able to write the persistent data. This can be done with the `--user` parameter.
3. bitwarden_rs listens on port `80` inside the container by default, this [won't work with non-root user](https://www.w3.org/Daemon/User/Installation/PrivilegedPorts.html), because regular users aren't allowed to open port bellow `1024`. To overcome this, you need to configure server to listen on a different port, you can use `ROCKET_PORT` to do that.
Here's sample docker run, that uses user with id `1000` and with the port redirection configured, so that inside container the service is listening on port `8080` and docker translates that to external (host) port `80`:
```sh
docker run -d --name bitwarden \
--user 1000 \
-e ROCKET_PORT=8080 \
-v /bw-data/:/data/ \
-p 80:8080 \
mprasil/bitwarden:latest
```