Dockerfile w/ Dynmap (#1783)

## Changes
A dockerfile including a dynmap installation has been added for testing
purposes. This is intended to make testing the plugin with dynmap
easier.

### Why build from source?
I would have downloaded the JAR, but it cannot be retrieved with 'wget'
and the developers prohibit redistribution.

## Relevant Issue
closes #1782

Dockerfile

@@ -18,10 +18,15 @@ RUN echo "eula=true" > eula.txt
 RUN mkdir plugins
 
 # Build plugin
-COPY . .
-RUN ./gradlew build
-RUN cp build/libs/*-all.jar plugins
+COPY . /testmcserver/MedievalFactions
+WORKDIR /testmcserver/MedievalFactions
+RUN /testmcserver/MedievalFactions/gradlew build
+WORKDIR /testmcserver
+
+# Install plugin
+RUN cp /testmcserver/MedievalFactions/build/libs/*-all.jar /testmcserver/plugins
 
 # Run server
 EXPOSE 25565
+EXPOSE 8123
 ENTRYPOINT java -jar spigot-1.20.4.jar

Dockerfile.dynmap

@@ -0,0 +1,41 @@
+FROM ubuntu
+
+# Install dependencies
+RUN apt-get update
+RUN apt-get install -y git \
+    openjdk-17-jdk \
+    openjdk-17-jre \
+    wget \
+    git
+
+# Create server directory
+WORKDIR /testmcserver
+
+# Clone & build dynmap (placed here to take advantage of docker caching)
+RUN git clone https://github.com/webbukkit/dynmap
+WORKDIR /testmcserver/dynmap
+RUN /testmcserver/dynmap/gradlew :spigot:build
+WORKDIR /testmcserver
+
+# Build server
+RUN wget -O BuildTools.jar https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
+RUN git config --global --unset core.autocrlf || :
+RUN java -jar BuildTools.jar --rev 1.20.4
+RUN echo "eula=true" > eula.txt
+RUN mkdir plugins
+
+# Build plugin
+COPY . /testmcserver/MedievalFactions
+WORKDIR /testmcserver/MedievalFactions
+RUN /testmcserver/MedievalFactions/gradlew build
+WORKDIR /testmcserver
+
+# Install plugin
+RUN cp /testmcserver/MedievalFactions/build/libs/*-all.jar /testmcserver/plugins
+
+# Install dynmap
+RUN cp /testmcserver/dynmap/target/Dynmap-*.jar /testmcserver/plugins
+
+# Run server
+EXPOSE 25565
+ENTRYPOINT java -jar spigot-1.20.4.jar

compose-dynmap.yml

@@ -0,0 +1,10 @@
+services:
+  testmcserver:
+    build:
+      context: .
+      dockerfile: Dockerfile.dynmap
+    image: mf-test-mc-server-with-dynmap
+    container_name: mf-test-mc-server-with-dynmap
+    ports:
+      - "25565:25565"
+      - "8123:8123"