docker: move Dockerfile to server and wikibase folder

and change builder image to rust:1-buster
as recommended in https://github.com/oxigraph/oxigraph/pull/41#discussion_r456384441

docker/publish_docker_images.sh

@@ -4,8 +4,8 @@ if [[ -z ./Dockerfile ]] ; then
   exit 1
 fi
 
-cat Dockerfile | docker build -t oxigraph/oxigraph -
-cat Dockerfile | sed s/oxigraph_server/oxigraph_wikibase/g | docker build -t oxigraph/oxigraph-wikibase -
+cat server/Dockerfile | docker build -t oxigraph/oxigraph -
+cat wikibase/Dockerfile | docker build -t oxigraph/oxigraph-wikibase -
 
 docker push oxigraph/oxigraph:latest
 docker push oxigraph/oxigraph-wikibase:latest

server/Dockerfile

@@ -1,4 +1,4 @@
-FROM rust:1.44 as builder
+FROM rust:1-buster as builder
 
 RUN apt-get update && \
   apt-get install clang -y && \

wikibase/Dockerfile

@@ -0,0 +1,13 @@
+FROM rust:1-buster as builder
+
+RUN apt-get update && \
+  apt-get install clang -y && \
+  git clone https://github.com/oxigraph/oxigraph --depth 1 && \
+  cd oxigraph && \
+  cargo build --release
+
+FROM debian:buster-slim
+
+COPY --from=builder /oxigraph/target/release/oxigraph_wikibase /usr/local/bin/oxigraph_wikibase
+
+ENTRYPOINT [ "/usr/local/bin/oxigraph_wikibase" ]