Simplify and dry up the Dockerfiles

tools/docker/build-and-push-images.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+# Please run from the directory this file in
+docker pull ubuntu:18.04
+docker build -t jevolk/construct:ubuntu-18.04 ./ubuntu/base
+docker build -t jevolk/construct:ubuntu-18.04-clang-9 ./ubuntu/clang-9
+docker build -t jevolk/construct:ubuntu-18.04-gcc-8 ./ubuntu/gcc-8
+
+docker push jevolk/construct:ubuntu-18.04-clang-9
+docker push jevolk/construct:ubuntu-18.04-gcc-8

tools/docker/ubuntu-18.04-gcc-8

@@ -1,62 +0,0 @@
-FROM ubuntu:18.04
-
-RUN \
-    apt-get update && \
-    apt-get install -y software-properties-common && \
-    add-apt-repository -y ppa:mhier/libboost-latest && \
-    add-apt-repository -y ppa:ubuntu-toolchain-r/test && \
-    apt-get update && \
-    apt-get install --no-install-recommends -y \
-        autoconf \
-        autoconf-archive \
-        autoconf2.13 \
-        automake \
-        autotools-dev \
-        boost1.68 \
-        build-essential \
-        cmake \
-        curl \
-        g++-8 \
-        gcc-8 \
-        git \
-        libbz2-dev \
-        libgflags-dev \
-        libgraphicsmagick1-dev \
-        libjemalloc-dev \
-        liblz4-dev \
-        libmagic-dev \
-        libnss-db \
-        libsodium-dev \
-        libssl-dev \
-        libtool \
-        shtool \
-        xz-utils && \
-    apt-get clean && \
-    apt-get autoremove --purge -y
-
-ENV ROCKSDB_VERSION=5.16.6
-
-RUN \
-    mkdir -p /tmpbuild/rocksdb && \
-    cd /tmpbuild/rocksdb && \
-    curl -sL https://github.com/facebook/rocksdb/archive/v${ROCKSDB_VERSION}.tar.gz -o rocksdb-${ROCKSDB_VERSION}.tar.gz && \
-    tar xfvz rocksdb-${ROCKSDB_VERSION}.tar.gz && \
-    cd /tmpbuild/rocksdb/rocksdb-${ROCKSDB_VERSION} && \
-    cmake -H. -Bbuild \
-        -DCMAKE_BUILD_TYPE=Release \
-        -DWITH_TESTS=0 \
-        -DWITH_TOOLS=0 \
-        -DUSE_RTTI=1 \
-        -DWITH_LZ4=1 \
-        -DBUILD_SHARED_LIBS=1 && \
-    cmake --build build --target install && \
-    rm -Rf /tmpbuild/
-
-RUN mkdir /build
-
-ENV CXX g++-8
-ENV CC gcc-8
-
-WORKDIR /build
-
-CMD [ "/bin/bash" ]

tools/docker/ubuntu/base/Dockerfile

@@ -2,7 +2,7 @@ FROM ubuntu:18.04
 
 RUN \
     apt-get update && \
-    apt-get install -y software-properties-common && \
+    apt-get install --no-install-recommends -y software-properties-common && \
     add-apt-repository -y ppa:mhier/libboost-latest && \
     add-apt-repository -y ppa:ubuntu-toolchain-r/test && \
     apt-get update && \
@@ -14,7 +14,6 @@ RUN \
         autotools-dev \
         boost1.68 \
         build-essential \
-        clang-9 \
         cmake \
         curl \
         git \
@@ -30,8 +29,10 @@ RUN \
         libtool \
         shtool \
         xz-utils && \
+    apt-get purge -y software-properties-common && \
     apt-get clean && \
-    apt-get autoremove --purge -y
+    apt-get autoremove --purge -y && \
+    rm -rf /var/lib/apt/lists/*
 
 ENV ROCKSDB_VERSION=5.16.6
 
@@ -53,9 +54,5 @@ RUN \
 
 RUN mkdir /build
 
-ENV CC clang-9
-ENV CXX clang++-9
-
 WORKDIR /build
 
-CMD [ "/bin/bash" ]

tools/docker/ubuntu/clang-9/Dockerfile

@@ -0,0 +1,10 @@
+FROM jevolk/construct:ubuntu-18.04
+
+ENV CC clang-9
+ENV CXX clang++-9
+
+RUN apt-get update \
+   && apt-get install --no-install-recommends -y clang-9 \
+   && apt-get clean -y \
+   && rm -rf /var/lib/apt/lists/*
+

tools/docker/ubuntu/gcc-8/Dockerfile

@@ -0,0 +1,9 @@
+FROM jevolk/construct:ubuntu-18.04
+
+ENV CXX g++-8
+ENV CC gcc-8
+
+RUN apt-get update \
+   && apt-get install --no-install-recommends -y g++-8 gcc-8 \
+   && apt-get clean -y \
+   && rm -rf /var/lib/apt/lists/*