Add Docker Support (#2486)

* chore(docker): add build workflow

* chore(docker): update gradle image

* chore(docker): this really shouldnt be running on raspberry pi's right now.

* chore(docker): not sure why we need unzip here

* chore(docker): attempt to add nodejs to allow the handbook to build

* chore(docker): whoops, needs to be done during build

* chore(docker): i dont know if this is going to work

* chore(docker): replace my username with repo org as I am no longer testing this

* chore(docker): version will change in the future, so fix it now.

Dockerfile

@@ -0,0 +1,38 @@
+# Builder
+FROM gradle:jdk17-alpine as builder
+
+RUN apk add --update nodejs npm
+
+WORKDIR /app
+COPY ./ /app/
+
+RUN gradle jar --no-daemon
+
+# Fetch Data
+FROM bitnami/git:2.43.0-debian-11-r1 as data
+
+ARG DATA_REPOSITORY=https://gitlab.com/YuukiPS/GC-Resources.git
+ARG DATA_BRANCH=4.0
+
+WORKDIR /app
+
+RUN git clone --branch ${DATA_BRANCH} --depth 1 ${DATA_REPOSITORY}
+
+# Result Container
+FROM amazoncorretto:17-alpine
+
+WORKDIR /app
+
+# Copy built assets
+COPY --from=builder /app/grasscutter-*.jar /app/grasscutter.jar
+COPY --from=builder /app/keystore.p12 /app/keystore.p12
+
+# Copy the resources
+COPY --from=data /app/GC-Resources/Resources /app/resources/
+
+# Copy startup files
+COPY ./entrypoint.sh /app/
+
+CMD [ "sh", "/app/entrypoint.sh" ]
+
+EXPOSE 80 443 8888 22102