Add initial configuration files and Docker setup for Documize

Dockerfile

@@ -1,9 +1,10 @@
-FROM alpine:latest
+FROM alpine:3.23
 LABEL maintainer="Luke Tainton <luke@tainton.uk>"
-LABEL org.opencontainers.image.source="https://gitlab.com/luketainton/documize-docker"
-ARG DOCUMIZE_VERSION=v4.2.3
+LABEL org.opencontainers.image.source="https://git.tainton.uk/repos/documize-docker"
+ARG DOCUMIZE_VERSION=v5.14.0
+ENV DOCUMIZEPORT=5001
 RUN apk add --no-cache curl
 WORKDIR /opt
 RUN curl -L -o documize "https://github.com/documize/community/releases/download/${DOCUMIZE_VERSION}/documize-community-linux-amd64" && chmod 755 documize
-ENTRYPOINT ["./documize -port 80"]
-EXPOSE 80
+ENTRYPOINT ["./documize -port ${DOCUMIZEPORT}"]
+EXPOSE ${DOCUMIZEPORT}