add Dockerfile

Dockerfile

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+FROM buildpack-deps:bionic-scm
+
+ENV \
+    # Enable detection of running in a container
+    DOTNET_RUNNING_IN_CONTAINER=true \
+    # Enable correct mode for dotnet watch (only mode supported in a container)
+    DOTNET_USE_POLLING_FILE_WATCHER=true \
+    # Skip extraction of XML docs - generally not useful within an image/container - helps performance
+    NUGET_XMLDOC_MODE=skip \
+    # Stop M$ snooping
+    DOTNET_CLI_TELEMETRY_OPTOUT=true
+
+# Install .NET CLI dependencies
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        libc6 \
+        libgcc1 \
+        libgssapi-krb5-2 \
+        libicu60 \
+        libssl1.1 \
+        libstdc++6 \
+        zlib1g \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install .NET Core SDK
+RUN dotnet_sdk_version=3.1.101 \
+    && curl -SL --output dotnet.tar.gz https://dotnetcli.azureedge.net/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-linux-x64.tar.gz \
+    && dotnet_sha512='eeee75323be762c329176d5856ec2ecfd16f06607965614df006730ed648a5b5d12ac7fd1942fe37cfc97e3013e796ef278e7c7bc4f32b8680585c4884a8a6a1' \
+    && echo "$dotnet_sha512 dotnet.tar.gz" | sha512sum -c - \
+    && mkdir -p /usr/share/dotnet \
+    && tar -ozxf dotnet.tar.gz -C /usr/share/dotnet \
+    && rm dotnet.tar.gz \
+    && ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet \
+    # Trigger first run experience by running arbitrary cmd
+    && dotnet help
+
+# Installing the NBlood supervisor related things
+WORKDIR /supervisor
+RUN mkdir -p publish/blood
+RUN apt-get update && apt-get install -y \
+    git \
+    nano
+
+# Clone NBloodServerSupervisor
+RUN git clone https://github.com/CommonLoon102/NBloodServerSupervisor.git
+
+# Build NBloodServerSupervisor
+RUN dotnet publish NBloodServerSupervisor/NBloodServerSupervisor.sln --configuration Release --output publish --self-contained false --runtime linux-x64 \
+    && sed -i -e "s/CHANGEME/$(< /dev/urandom tr -dc A-Za-z0-9 | head -c${1:-32};echo;)/g" publish/appsettings.json
+
+# Install toolchain to build NBlood
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    libgl1-mesa-dev \
+    libglu1-mesa-dev \
+    libsdl-mixer1.2-dev \
+    libsdl1.2-dev \
+    libsdl2-dev \
+    libsdl2-mixer-dev \
+    nasm
+
+# Clone NBlood
+RUN git clone https://github.com/CommonLoon102/NBlood.git
+
+# Build NBlood
+RUN cd NBlood \
+    && git checkout gnorender \
+    && make nblood NORENDER=1
+
+# Install and configure nginx
+RUN apt-get update && apt-get install -y nginx \
+    && printf '\
+server { \n\
+    listen        23580; \n\
+    location / { \n\
+        proxy_pass         http://localhost:5000; \n\
+        proxy_http_version 1.1; \n\
+        proxy_set_header   Upgrade $http_upgrade; \n\
+        proxy_set_header   Connection keep-alive; \n\
+        proxy_set_header   Host $host; \n\
+        proxy_cache_bypass $http_upgrade; \n\
+        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for; \n\
+        proxy_set_header   X-Forwarded-Proto $scheme; \n\
+    } \n\
+}' > /etc/nginx/sites-available/default && service nginx start && nginx -t && nginx -s reload
+
+CMD service nginx start \
+    && cp /supervisor/NBlood/nblood /supervisor/publish/blood/nblood_server \
+    && dotnet /supervisor/publish/WebInterface.dll