use rpm in SLE Dockerfile

since we now have the rpm we don't need to build the binary within a container build, we can just zypper install it

packaging/suse/container/Dockerfile

@@ -5,32 +5,23 @@
 #!UseOBSRepositories
 #!ExclusiveArch: x86_64
 
-FROM bci/rust:1.66 AS release
-ADD wanda.tar.gz premium-checks.tar.gz* /build/
-RUN mv /build/priv/catalog/* /build/wanda/priv/catalog || true && rm -fr /build/priv/
-# Workaround for https://github.com/openSUSE/obs-build/issues/487
-RUN zypper --non-interactive in sles-release
-RUN zypper -n in git-core elixir>=1.15 elixir-hex erlang-rebar3
-WORKDIR /build/wanda/
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
-ENV MIX_ENV=prod
-ENV MIX_HOME=/usr/bin
-ENV MIX_REBAR3=/usr/bin/rebar3
-ENV MIX_PATH=/usr/lib/elixir/lib/hex/ebin
-ENV VERSION=%%VERSION%%
-RUN mix phx.digest
-RUN mix release
+FROM bci/bci-base:15.6
 
-FROM bci/rust:1.66 AS wanda
 # Define labels according to https://en.opensuse.org/Building_derived_containers
-# labelprefix=com.suse.trento
+# labelprefix=com.suse.trento.wanda
+LABEL org.opencontainers.image.title="Trento Wanda"
+LABEL org.opencontainers.image.description="Container image for Trento Wanda server component"
+LABEL org.opencontainers.image.url="https://www.trento-project.io"
 LABEL org.opencontainers.image.source="https://github.com/trento-project/wanda"
+LABEL org.opencontainers.image.version="%%VERSION%%-build%RELEASE%"
+# endendlabelprefix
+
 ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8
-WORKDIR /app
-COPY --from=release /build/wanda/_build/prod/rel/wanda .
+
+RUN zypper -n in trento-wanda
+
 EXPOSE 4000/tcp
-ENTRYPOINT ["/app/bin/wanda"]
+WORKDIR /usr/lib/wanda/
+ENTRYPOINT ["/usr/lib/wanda/bin/wanda"]