- docker file/directory cleanup

docker/ue4_exec_game/Dockerfile

@@ -1,11 +1,15 @@
-ARG base_container=base_container
-FROM ducandu/ue4_game AS game
-RUN echo " "
+# to build a final game image that only contains the cooked game executable
 
+ARG base_img=ue4_alien
+
+# the base image to copy from
+FROM ducandu/$base_img AS game_img
 
 # new container based on Ubuntu
 FROM ubuntu:xenial
 
+ARG game=AlienInvaders
+
 # install minimal python tools to be able to run plugin UnrealEnginePython
 RUN apt-get update -y && apt-get install -y --no-install-recommends python3 python3-dev python3-pip python3-setuptools
 RUN pip3 install numpy msgpack msgpack-numpy pydevd
@@ -15,22 +19,26 @@ RUN adduser --disabled-password --home /home/ue4 --shell /bin/bash ue4 && usermo
 # change to new user
 USER ue4
 WORKDIR /home/ue4
-RUN mkdir -p Games/AlienInvaders
-WORKDIR Games/AlienInvaders
+
+ENV GAME=$game
+RUN echo "GAME=${GAME}"
+
+RUN mkdir -p Games
+WORKDIR Games
 
 # just copy the cooked game
-COPY --from=game --chown=ue4:ue4 /home/ue4/UnrealEngine/AlienInvaders/Build/LinuxNoEditor ./
+COPY --from=game_img --chown=ue4:ue4 /home/ue4/UnrealEngine/${GAME}/Build/LinuxNoEditor ./
 # and the python scripts
 RUN mkdir -p AlienInvaders/Content/Scripts
-COPY --from=game --chown=ue4:ue4 /home/ue4/UnrealEngine/AlienInvaders/Content/Scripts AlienInvaders/Content/Scripts/
-
-#USER root
-#RUN chmod -R 0777 /home/ue4/Games/AlienInvaders
-#USER ue4
+COPY --from=game_img --chown=ue4:ue4 /home/ue4/UnrealEngine/${GAME}/Content/Scripts ${GAME}/Content/Scripts/
 
-# TODO: add PYTHONPATH pointing to Games/.../Content/Scripts to env
+# add to PYTHONPATH: Games/[the GAME]/Content/Scripts to env
+ENV PYTHONPATH=/home/ue4/Games/${GAME}/Content/Scripts
 
 # start the game automatically when running this container
-# CMD ["/home/ue4/Games/AlienInvaders/AlienInvaders.sh -NullRHI -nosound"]
-CMD ["bash"]
+CMD /home/ue4/Games/${GAME}.sh -NullRHI -nosound
 
+# run this container with
+# `docker run -d --name aliens ducandu/ue4_[game]_final`
+# login to this container via
+# `docker exec -ti [container name] bash`

docker/ue4_game/Dockerfile

@@ -0,0 +1,42 @@
+# to build a game on top of either a) the basic (engine) ducandu/ue4 container
+# or b) a previously compiled/cooked game
+
+# provide build-args:
+# game=[the project's name, e.g. AlienInvaders (default)]
+# base_img=[the base image to use: `ue4` for initial build, or `ue4_alien` for an already built game]
+
+ARG base_img=ue4
+
+FROM ducandu/$base_img
+
+USER ue4
+WORKDIR /home/ue4
+
+RUN echo " abc"
+
+# default game; override this via `--build-arg game=` on `docker build` command line
+ARG base_img=ue4
+ENV BASE_IMG=$base_img
+ARG game=AlienInvaders
+ENV GAME=$game
+
+COPY --chown=ue4:ue4 build_game_init.sh .
+COPY --chown=ue4:ue4 build_game_incr.sh .
+RUN dos2unix build_game_init.sh
+RUN dos2unix build_game_incr.sh
+RUN chmod 0777 build_game_init.sh && chmod 0777 build_game_incr.sh
+RUN if [ "${BASE_IMG}" = "ue4" ] ; then /bin/sh ./build_game_init.sh ; else /bin/sh ./build_game_incr.sh ; fi
+
+WORKDIR UnrealEngine
+## Modify the UnrealEnginePython build cs file to add the python lib and include paths
+# not necessary as ubuntu is covered by the default values in UEPython build cs
+#RUN sed -i 's/\/usr\/local\/include\/python3.6//' AlienInvaders/Plugins/UnrealEnginePython/Source/UnrealEnginePython/UnrealEnginePython.Build.cs
+
+# - copy necessary scripts from the plugin to the game's content folder
+RUN mkdir -p ${GAME}/Content/Scripts/
+RUN cp -u ${GAME}/Plugins/MaRLEnE/Scripts/* ${GAME}/Content/Scripts/.
+
+# build and cook the game
+RUN Engine/Build/BatchFiles/RunUAT.sh BuildCookRun -project=${GAME}/${GAME}.uproject -nop4 -build -cook -compressed -stage -platform=Linux -clientconfig=Development -pak -archive -archivedirectory="${GAME}/Build" -utf8output
+
+CMD ["bash"]

docker/ue4_game/build_game_incr.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+cd /home/ue4/marlene
+git pull
+cd ../UnrealEnginePython
+git pull
+
+# copy (update; only newer files) the example game and the two plugins into UnrealEngine
+cd
+cp -r -u marlene/examples/UE4Games/${GAME} UnrealEngine/.
+cp -r -u marlene/Plugins/MaRLEnE UnrealEngine/${GAME}/Plugins/.
+cp -r -u UnrealEnginePython UnrealEngine/${GAME}/Plugins/.
+

docker/ue4_game/build_game_init.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+echo "GAME=$GAME"
+
+mkdir -p UnrealEngine/${GAME}/Plugins
+
+# git all needed repos
+# and copy the example game and the two plugins into UnrealEngine
+git clone https://github.com/ducandu/marlene.git
+cp -r marlene/examples/UE4Games/${GAME} UnrealEngine/.
+cp -r marlene/Plugins/MaRLEnE UnrealEngine/${GAME}/Plugins/.
+
+git clone https://github.com/20tab/UnrealEnginePython.git
+cp -r UnrealEnginePython UnrealEngine/${GAME}/Plugins/.
+