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242 lines
9.4 KiB
242 lines
9.4 KiB
This is Bitwarden server API implementation written in rust compatible with [upstream Bitwarden clients](https://bitwarden.com/#download)*, ideal for self-hosted deployment where running official resource-heavy service might not be ideal.
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Image is based on [Rust implementation of Bitwarden API](https://github.com/dani-garcia/bitwarden_rs).
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_*Note, that this project is not associated with the [Bitwarden](https://bitwarden.com/) project nor 8bit Solutions LLC._
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## Features
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Basically full implementation of Bitwarden API is provided including:
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* Basic single user functionality
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* Organizations support
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* Attachments
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* Vault API support
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* Serving the static files for Vault interface
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* Website icons API
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## Docker image usage
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### Starting a container
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The persistent data is stored under /data inside the container, so the only requirement for persistent deployment using Docker is to mount persistent volume at the path:
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```
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docker run -d --name bitwarden -v /bw-data/:/data/ -p 80:80 mprasil/bitwarden:latest
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```
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This will preserve any persistent data under `/bw-data/`, you can adapt the path to whatever suits you.
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The service will be exposed on port 80.
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### Updating the bitwarden image
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Updating is straightforward, you just make sure to preserve the mounted volume. If you used the bind-mounted path as in the example above, you just need to `pull` the latest image, `stop` and `rm` the current container and then start a new one the same way as before:
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```sh
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# Pull the latest version
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docker pull mprasil/bitwarden:latest
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# Stop and remove the old container
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docker stop bitwarden
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docker rm bitwarden
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# Start new container with the data mounted
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docker run -d --name bitwarden -v /bw-data/:/data/ -p 80:80 mprasil/bitwarden:latest
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```
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Then visit [http://localhost:80](http://localhost:80)
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In case you didn't bind mount the volume for persistent data, you need an intermediate step where you preserve the data with an intermediate container:
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```sh
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# Pull the latest version
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docker pull mprasil/bitwarden:latest
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# Create intermediate container to preserve data
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docker run --volumes-from bitwarden --name bitwarden_data busybox true
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# Stop and remove the old container
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docker stop bitwarden
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docker rm bitwarden
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# Start new container with the data mounted
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docker run -d --volumes-from bitwarden_data --name bitwarden -p 80:80 mprasil/bitwarden:latest
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# Optionally remove the intermediate container
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docker rm bitwarden_data
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# Alternatively you can keep data container around for future updates in which case you can skip last step.
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```
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## Configuring bitwarden service
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### Disable registration of new users
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By default new users can register, if you want to disable that, set the `SIGNUPS_ALLOWED` env variable to `false`:
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```sh
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docker run -d --name bitwarden \
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-e SIGNUPS_ALLOWED=false \
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-v /bw-data/:/data/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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### Changing persistent data location
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#### /data prefix:
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By default all persistent data is saved under `/data`, you can override this path by setting the `DATA_FOLDER` env variable:
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```sh
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docker run -d --name bitwarden \
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-e DATA_FOLDER=/persistent \
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-v /bw-data/:/persistent/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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Notice, that you need to adapt your volume mount accordingly.
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#### database name and location
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Default is `$DATA_FOLDER/db.sqlite3`, you can change the path specifically for database using `DATABASE_URL` variable:
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```sh
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docker run -d --name bitwarden \
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-e DATABASE_URL=/database/bitwarden.sqlite3 \
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-v /bw-data/:/data/ \
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-v /bw-database/:/database/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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Note, that you need to remember to mount the volume for both database and other persistent data if they are different.
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#### attachments location
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Default is `$DATA_FOLDER/attachments`, you can change the path using `ATTACHMENTS_FOLDER` variable:
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```sh
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docker run -d --name bitwarden \
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-e ATTACHMENTS_FOLDER=/attachments \
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-v /bw-data/:/data/ \
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-v /bw-attachments/:/attachments/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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Note, that you need to remember to mount the volume for both attachments and other persistent data if they are different.
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#### icons cache
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Default is `$DATA_FOLDER/icon_cache`, you can change the path using `ICON_CACHE_FOLDER` variable:
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```sh
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docker run -d --name bitwarden \
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-e ICON_CACHE_FOLDER=/icon_cache \
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-v /bw-data/:/data/ \
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-v /icon_cache/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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Note, that in the above example we don't mount the volume locally, which means it won't be persisted during the upgrade unless you use intermediate data container using `--volumes-from`. This will impact performance as bitwarden will have to re-dowload the icons on restart, but might save you from having stale icons in cache as they are not automatically cleaned.
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### Changing the API request size limit
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By default the API calls are limited to 10MB. This should be sufficient for most cases, however if you want to support large imports, this might be limiting you. On the other hand you might want to limit the request size to something smaller than that to prevent API abuse and possible DOS attack, especially if running with limited resources.
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To set the limit, you can use the `ROCKET_LIMITS` variable. Example here shows 10MB limit for posted json in the body (this is the default):
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```sh
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docker run -d --name bitwarden \
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-e ROCKET_LIMITS={json=10485760} \
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-v /bw-data/:/data/ \
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-p 80:80 \
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mprasil/bitwarden:latest
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```
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### Enabling HTTPS
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To enable HTTPS, you need to configure the `ROCKET_TLS`.
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The values to the option must follow the format:
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```
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ROCKET_TLS={certs="/path/to/certs.pem",key="/path/to/key.pem"}
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```
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Where:
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- certs: a path to a certificate chain in PEM format
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- key: a path to a private key file in PEM format for the certificate in certs
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```sh
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docker run -d --name bitwarden \
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-e ROCKET_TLS={certs='"/ssl/certs.pem",key="/ssl/key.pem"}' \
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-v /ssl/keys/:/ssl/ \
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-v /bw-data/:/data/ \
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-v /icon_cache/ \
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-p 443:443 \
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mprasil/bitwarden:latest
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```
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Note that you need to mount ssl files and you need to forward appropriate port.
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### Other configuration
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Though this is unlikely to be required in small deployment, you can fine-tune some other settings like number of workers using environment variables that are processed by [Rocket](https://rocket.rs), please see details in [documentation](https://rocket.rs/guide/configuration/#environment-variables).
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## Building your own image
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Clone the repository, then from the root of the repository run:
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```sh
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# Build the docker image:
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docker build -t bitwarden_rs .
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```
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## Building binary
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For building binary outside the Docker environment and running it locally without docker, please see [build instructions](BUILD.md).
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## Backing up your vault
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### 1. the sqlite3 database
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The sqlite3 database should be backed up using the proper sqlite3 backup command. This will ensure the database does not become corrupted if the backup happens during a database write.
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```
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sqlite3 /$DATA_FOLDER/db.sqlite3 ".backup '/$DATA_FOLDER/db-backup/backup.sq3'"
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```
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This command can be run via a CRON job everyday, however note that it will overwrite the same backup.sq3 file each time. This backup file should therefore be saved via incremental backup either using a CRON job command that appends a timestamp or from another backup app such as Duplicati.
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### 2. the attachements folder
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By default, this is located in `$DATA_FOLDER/attachments`
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### 3. the key files
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This is optional, these are only used to store tokens of users currently logged in, deleting them would simply log each user out forcing them to log in again. By default, these are located in the `$DATA_FOLDER` (by default /data in the docker). There are 3 files: rsa_key.der, rsa_key.pem, rsa_key.pub.der.
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### 4. Icon Cache
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This is optional, the icon cache can redownload itself however if you have a large cache, it may take a long time. By default it is located in `$DATA_FOLDER/icon_cache`
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## Runing the server with non-root user
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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:
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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.
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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.
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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.
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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`:
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```sh
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docker run -d --name bitwarden \
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--user 1000 \
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-e ROCKET_PORT=8080 \
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-v /bw-data/:/data/ \
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-p 80:8080 \
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mprasil/bitwarden:latest
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```
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