support floonet, separate entrypoint from cmd, add docker volume (#2265)

* support floonet, separate entrypoint from cmd, add docker volume

* Separate Dockerfile for floonet

* Spelling and docs

doc/build.md

@@ -96,12 +96,15 @@ grin client help
 ```sh
 docker build -t grin -f etc/Dockerfile .
 ```
+For floonet, use `etc/Dockerfile.floonet` instead
 
 You can bind-mount your grin cache to run inside the container.
 
 ```sh
 docker run -it -d -v $HOME/.grin:/root/.grin grin
 ```
+If you prefer to use a docker named volume, you can pass `-v dotgrin:/root/.grin` instead.
+Using a named volume copies default configurations upon volume creation
 
 ## Cross-platform builds
 

etc/Dockerfile

@@ -36,9 +36,14 @@ ENV LANG en_US.UTF-8
 COPY --from=builder /usr/src/grin/target/release/grin /usr/local/bin/grin
 
 WORKDIR /root/.grin
+
 RUN grin server config && \
     sed -i -e 's/run_tui = true/run_tui = false/' grin-server.toml
 
-EXPOSE 13413 13414 13415 13416
+VOLUME ["/root/.grin"]
 
-ENTRYPOINT ["grin", "server", "run"]
+EXPOSE 3413 3414 3415 3416
+
+ENTRYPOINT ["grin"]
+
+CMD ["server", "run"]

etc/Dockerfile.floonet

@@ -0,0 +1,49 @@
+# Multistage docker build, requires docker 17.05
+
+# builder stage
+FROM rust:1.31 as builder
+
+RUN set -ex && \
+    apt-get update && \
+    apt-get --no-install-recommends --yes install \
+    clang \
+    libclang-dev \
+    llvm-dev \
+    libncurses5 \
+    libncursesw5 \
+    cmake \
+    git
+
+WORKDIR /usr/src/grin
+
+# Copying Grin
+COPY . .
+
+# Building Grin
+RUN cargo build --release
+
+# runtime stage
+FROM debian:9.4
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y locales openssl
+
+RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
+    dpkg-reconfigure --frontend=noninteractive locales && \
+    update-locale LANG=en_US.UTF-8
+
+ENV LANG en_US.UTF-8
+
+COPY --from=builder /usr/src/grin/target/release/grin /usr/local/bin/grin
+
+WORKDIR /root/.grin
+
+RUN grin --floonet server config && \
+    sed -i -e 's/run_tui = true/run_tui = false/' grin-server.toml
+
+VOLUME ["/root/.grin"]
+
+EXPOSE 13413 13414 13415 13416
+
+ENTRYPOINT ["grin", "--floonet"]
+
+CMD ["server", "run"]