doc, docker: some minor changes to the README and Dockerfile (#22)

* meta: update README.md with information more suited to the new SQL backend

* docker: remove BoltDB-related configuration from the Dockerfile

Dockerfile

@@ -12,10 +12,8 @@ FROM scratch
 COPY --from=build /build/sips /sips
 COPY --from=build /build/sipsctl /sipsctl
 
-ENV XDG_CONFIG_HOME /data
 ENV PATH /
 
 EXPOSE 8080
-VOLUME /data/sips
 
-CMD ["sips"]
+CMD ["sips"]

README.md

@@ -11,13 +11,15 @@ SIPS is a Simple IPFS Pinning Service. It does the bare minimum necessary to pre
 Setup
 -----
 
+SIPS is capable of using either Postgres or SQLite3 as its backend. By default only Postgres is available, but the `sqlite3` build tag will add support for SQLite3.
+
 After installation, SIPS will have no users or tokens in its database. To create some, use the `sipsctl` utility that is provided:
 
 ```bash
-$ sipsctl users add whateverUsernameYouWant
-$ sipsctl tokens add --user whateverUsernameYouWant
+$ sipsctl users add -db "$DATABASE_URL" whateverUsernameYouWant
+$ sipsctl tokens add -db "$DATABASE_URL" --user whateverUsernameYouWant
 ```
 
 You can then use that token with a pinning service client to add, remove, and list pins.
 
-[pinning-service-api]: https://ipfs.github.io/pinning-services-api-spec/
+[pinning-service-api]: https://ipfs.github.io/pinning-services-api-spec/