Reduce docker image size in docker build (#758)

.dockerignore

@@ -0,0 +1,49 @@
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+*pb.cc
+*pb.h
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Log path
+make_config.mk
+log/
+lib/
+tools/
+output/
+
+# DB
+db/
+dump/
+
+# third party
+gdb.txt
+tags
+
+make_config.mk
+src/*.d
+src/build_version.cc

Dockerfile

@@ -1,21 +1,36 @@
-FROM centos:latest
-MAINTAINER left2right <yqzhang@easemob.com>
+FROM centos:7
+
+LABEL maintainer="SvenDowideit@home.org.au, zhangshaomin_1990@126.com"
+
+ENV PIKA  /pika
+ENV PIKA_BUILD_DIR /tmp/pika
+ENV PATH ${PIKA}/bin:${PATH}
+
+COPY . ${PIKA_BUILD_DIR}
+
+WORKDIR ${PIKA_BUILD_DIR}
 
 RUN rpm -ivh https://mirrors.ustc.edu.cn/epel/epel-release-latest-7.noarch.rpm && \
-    yum -y update && \
+    yum -y makecache && \
     yum -y install snappy-devel && \
     yum -y install protobuf-devel && \
     yum -y install gflags-devel && \
     yum -y install glog-devel && \
     yum -y install gcc-c++ && \
     yum -y install make && \
     yum -y install which && \
-    yum -y install git
+    yum -y install git && \
+    make && \
+    cp -r ${PIKA_BUILD_DIR}/output ${PIKA} && \
+    yum -y remove gcc-c++ && \
+    yum -y remove make && \
+    yum -y remove which && \
+    yum -y remove git && \
+    yum -y clean all && \
+    rm -rf /var/cache/yum && \
+    rm -rf .git && \
+    rm -rf ${PIKA_BUILD_DIR}
 
-ENV PIKA  /pika
-COPY . ${PIKA}
 WORKDIR ${PIKA}
-RUN make
-ENV PATH ${PIKA}/output/bin:${PATH}
 
-WORKDIR ${PIKA}/output
+CMD ["sh", "-c", "${PIKA}/bin/pika -c ${PIKA}/conf/pika.conf"]