feat: Add default volume

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Added
+
++ Added default volume
+
 ### Changed
 
 + Updated hydrus server version

Dockerfile

@@ -67,6 +67,8 @@ HEALTHCHECK --interval=1m --timeout=10s --retries=3 \
   CMD wget --quiet --tries=1 --no-check-certificate --spider \
     https://localhost:45870 || exit 1
 
+VOLUME /data
+
 USER hydrus
 
 ENTRYPOINT ["docker-entrypoint"]

README.md

@@ -95,9 +95,10 @@ repositories. You will generally have two (one for tags and one for files), but
 if you add more, you will also need to expose additional ports.
 
 Per default, hydrus-server-docker stores its databases and media inside the
-`/data` directory. It is highly recommended to create a named volume and mount
-it to the same location if you wish to persist the data beyond the lifetime of
-the container and/or access it on the host:
+`/data` directory which is a mount point that is persisted as a volume. A new
+volume will be created every time a container is created, making it less ideal
+as a long-term solution. Instead, you should create a named volume yourself and
+mount that over it instead:
 
 ```zsh
 user@local:~$ docker volume create hydrus-server-data
@@ -110,6 +111,13 @@ example with all the options mentioned above:
 user@local:~$ docker run -p 45870:45870 -p 45871:45871 -p 45872:45872 -v hydrus-server-data:/data -d mserajnik/hydrus-server-docker
 ```
 
+Specifying the same named volume every time a container is created gives each
+of these instances access to the same persisted data.
+
+Of course, using a bind mount instead of a named volume is also possible but
+for performance reasons only recommended if you need easy access to the data on
+the host machine.
+
 ### Additional configuration when building
 
 #### UID/GID