Cache layers during Docker build, take source from the current dir instead of cloning

Author: vitalif

.dockerignore

@@ -1 +1,5 @@
-*
+*
+!cmake
+!grive
+!libgrive
+!CMakeLists.txt

Dockerfile

@@ -1,27 +1,25 @@
 FROM alpine:3.7 as build
 
-RUN apk add git make cmake g++ libgcrypt-dev yajl-dev yajl \
+RUN apk add make cmake g++ libgcrypt-dev yajl-dev yajl \
 	boost-dev curl-dev expat-dev cppunit-dev binutils-dev \
-	pkgconfig \
-	&& git clone https://github.com/vitalif/grive2.git \
-	&& mkdir grive2/build \
-	&& cd grive2/build  \
-	&& cmake ..  \
-	&& make -j4  \
-	&& make install \
-	&& cd ../.. \
-	&& rm -rf grive2 \
-	&& mkdir /drive
+	pkgconfig
+
+ADD . /grive2
+
+RUN mkdir /grive2/build \
+	&& cd /grive2/build \
+	&& cmake .. \
+	&& make -j4 install
 
 FROM alpine:3.7
-COPY --from=build /usr/local/bin/grive /bin/grive
-ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.1/dumb-init_1.2.1_amd64 /bin/dumb-init
-RUN chmod 777 /bin/dumb-init /bin/grive \
-	&& mkdir /data \
-	&& apk add yajl libcurl libgcrypt \
-	boost-program_options boost-regex libstdc++ boost-system boost binutils \
+
+RUN apk add yajl libcurl libgcrypt boost-program_options boost-regex libstdc++ boost-system \
 	&& apk add boost-filesystem --repository=http://dl-cdn.alpinelinux.org/alpine/edge/main
 
+COPY --from=build /usr/local/bin/grive /bin/grive
+RUN chmod 777 /bin/grive \
+	&& mkdir /data
+
 VOLUME /data
 WORKDIR /data
-ENTRYPOINT ["dumb-init", "grive"]
+ENTRYPOINT grive