Merges lbrynet compilers into one Dockerfile with ARG for BASE_IMAGE

lbrynet/Dockerfile-compiler-linux

@@ -1,4 +1,13 @@
-FROM multiarch/ubuntu-core:armhf-bionic as dependencies
+## Compiler for lbrynet container for any architecture supported by Ubuntu 18.04
+## Specify the BASE_IMAGE build argument to choose which Ubuntu base image to build from.
+## Docs for ARG in FROM:  https://github.com/docker/cli/blob/master/docs/reference/builder.md#understand-how-arg-and-from-interact
+## Architecture | Build command
+##    x86_64    | docker build -t lbrynet -f Dockerfile-compiler .
+##    armhf     | docker build -t lbrynet-armhf -f Dockerfile-compiler --build-arg BASE_IMAGE=multiarch/ubuntu-core:armhf-bionic .
+##    arm64     | docker build -t lbrynet-arm64 -f Dockerfile-compiler --build-arg BASE_IMAGE=multiarch/ubuntu-core:arm64-bionic .
+
+ARG BASE_IMAGE=ubuntu:18.04
+FROM ${BASE_IMAGE} as dependencies
 RUN apt-get update && \
     apt-get install -y \
       python3-pip \
@@ -48,7 +57,7 @@ RUN python3.7 scripts/set_build.py && \
     mkdir /target && \
     /lbry/dist/lbrynet --version
 
-FROM multiarch/ubuntu-core:armhf-bionic as app
+FROM ${BASE_IMAGE} as app
 RUN adduser lbrynet --gecos GECOS --shell /bin/bash --disabled-password --home /home/lbrynet
 COPY --from=compile /usr/local/bin/start /usr/local/bin/checkmount /lbry/dist/lbrynet /usr/local/bin/
 EXPOSE 5279

lbrynet/Dockerfile-x86_64-compiler

@@ -1,57 +0,0 @@
-FROM ubuntu:18.04 as dependencies
-RUN apt-get update && \
-    apt-get install -y \
-      python3-pip \
-      python3.7 \
-      python3.7-dev \
-      build-essential \
-      libssl-dev \
-      libacl1-dev \
-      liblz4-dev \
-      libfuse-dev \
-      fuse \
-      pkg-config \
-      fakeroot \
-      git \
-      zlib1g-dev \
-      libbz2-dev \
-      libncurses5-dev \
-      libreadline-dev \
-      liblzma-dev \
-      libsqlite3-dev \
-      zip \
-      libffi-dev \
-      libleveldb-dev && \
-    update-alternatives --install /usr/bin/python python /usr/bin/python3.7 1 && \
-    update-alternatives --install /usr/bin/python python /usr/bin/python3.7 10 && \
-    update-alternatives --config python && \
-    python --version && \
-    pip3 --version
-
-FROM dependencies as compile
-
-RUN python3.7 -m pip install -U pyinstaller && \
-    git clone https://github.com/lbryio/lbry.git --depth 1 /lbry
-WORKDIR /lbry
-RUN git clone https://github.com/lbryio/torba.git --depth 1 /lbry/torba
-WORKDIR /lbry/torba
-RUN python3.7 -m pip install -e .
-WORKDIR /lbry/
-COPY stuff/start.sh /usr/local/bin/start
-COPY stuff/checkmount.sh /usr/local/bin/checkmount
-RUN python3.7 scripts/set_build.py && \
-    python3.7 -m pip install -e . && \
-    pyinstaller -F -n lbrynet lbrynet/extras/cli.py && \
-    chmod +x /lbry/dist/lbrynet && \
-    zip -j /lbry/dist/lbrynet-armhf.zip /lbry/dist/lbrynet && \
-    chmod a+x /usr/local/bin/* && \
-    mkdir /target && \
-    /lbry/dist/lbrynet --version
-
-FROM ubuntu:18.04 as app
-RUN adduser lbrynet --gecos GECOS --shell /bin/bash --disabled-password --home /home/lbrynet
-COPY --from=compile /usr/local/bin/start /usr/local/bin/checkmount /lbry/dist/lbrynet /usr/local/bin/
-EXPOSE 5279
-USER lbrynet
-ENTRYPOINT ["/usr/local/bin/checkmount"]
-CMD ["start"]

lbrynet/README.md

@@ -1,17 +1,30 @@
 # lbrynet
 
-## Compiler containers
+## Compiler container
 
-The compiler containers are for building lbrynet for multiple architectures.
+The [Dockerfile-compiler-linux](Dockerfile-compiler-linux) is for building lbrynet for any architecture supported
+by an Ubuntu 18.04 base image.
 
-### Build x86 compiler container
+### Register qemu to run docker images built for platforms other than your host
 
 ```
-docker build -t lbrynet-x86_64 -f Dockerfile-x86_64-compiler .
+docker run --rm --privileged multiarch/qemu-user-static:register
 ```
 
-### Build ARM compiler container
+### Build for the default x86_64 platform:
 
 ```
-docker build -t lbrynet-armhf -f Dockerfile-armhf-compiler .
+docker build -t lbrynet -f Dockerfile-compiler-linux .
+```
+
+### Build for an ARM 32-bit platform:
+
+```
+docker build -t lbrynet-armhf -f Dockerfile-compiler-linux --build-arg BASE_IMAGE=multiarch/ubuntu-core:armhf-bionic .
+```
+
+### Build for an ARM 64-bit platform:
+
+```
+docker build -t lbrynet-arm64 -f Dockerfile-compiler-linux --build-arg BASE_IMAGE=multiarch/ubuntu-core:arm64-bionic .
 ```