Added cmake, dockerfile and hello world code

Author: blackbell

CMakeLists.txt

@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.0.0)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+add_subdirectory( "src" )

Dockerfile

@@ -0,0 +1,9 @@
+FROM spritsail/alpine-cmake:latest as builder
+
+WORKDIR /app
+ADD . /app
+RUN mkdir build && cd build && cmake .. && make
+
+FROM alpine:latest as runner
+COPY --from=builder /app/build/bin /usr/bin
+CMD ["hello_world"]

src/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.0.0)
+project(hello_world VERSION 0.1.0)
+
+include(CTest)
+enable_testing()
+
+add_executable(hello_world main.cpp mybody.cpp)
+
+target_link_libraries(hello_world PUBLIC "-static")
+set(CPACK_PROJECT_NAME ${PROJECT_NAME})
+set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
+include(CPack)

src/main.cpp

@@ -0,0 +1,6 @@
+#include <iostream>
+#include "myheader.h"
+
+int main(){
+    std::cout << greeting( "World!" ) << std::endl;
+}

src/mybody.cpp

@@ -0,0 +1,6 @@
+#include "myheader.h"
+
+std::string greeting( const std::string& who )
+{
+    return "Hello " + who;
+}

src/myheader.h

@@ -0,0 +1,3 @@
+#include <string>
+
+std::string greeting( const std::string& who );