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server/Dockerfile

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+#####################################################
+# Dockerfile
+#
+# Creates an image with the Godot headless app.
+#
+# Build Args:
+#   - GODOT_VERSION: The version of Godot
+#   - EXPORT_TEMPLATES: Included export templates
+#       examples "all", "none", "win"
+#
+
+ARG EXPORT_TEMPLATES=all
+
+#------------------------------
+# Alias for the root image
+FROM debian:stable-slim AS base
+
+ARG GODOT_VERSION=3.4.2
+
+#------------------------------
+# Installs packages to use wget
+FROM base as wget
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    wget \
+    unzip
+
+#----------------
+# Downloads Godot
+FROM wget AS godot
+
+RUN wget https://downloads.tuxfamily.org/godotengine/3.4.4/Godot_v3.4.4-stable_linux_headless.64.zip 
+RUN unzip Godot_v3.4.4-stable_linux_headless.64.zip
+RUN mv Godot_v3.4.4-stable_linux_headless.64 /usr/local/bin/godot
+
+#----------------
+# Build web-server
+
+FROM golang:1.18.2 as web
+
+WORKDIR /app
+COPY go.mod ./
+COPY go.sum ./
+RUN go mod download
+COPY *.go ./
+RUN go build -o ./server
+
+#------------------------------
+# Clean setup with no templates
+
+FROM base AS export-none
+
+ENV XDG_DATA_HOME /usr/local/share
+
+RUN mkdir -p /root/.cache
+RUN mkdir -p /root/.config/godot
+
+WORKDIR /app
+COPY --from=godot /usr/local/bin/godot /usr/local/bin/godot
+COPY --from=web /app/server /usr/local/bin/server
+COPY template ./
+# EXPOSE 8080
+ENV SCRIPTS=/app/scripts
+
+ENTRYPOINT ["server"]
+CMD ["--help"]