Added tshock stack

stacks/tshock/Dockerfile

@@ -0,0 +1,45 @@
+FROM alpine AS base
+
+# Build arguments
+ARG RELEASE_TAG
+ARG DI_VER=1.2.5
+
+WORKDIR /app
+
+# Build dumb-init & download tshock
+RUN apk add --update --no-cache build-base unzip curl && \
+    curl -Lo - "https://github.com/Yelp/dumb-init/archive/refs/tags/v${DI_VER}.tar.gz" | tar -xzf - && \
+    cd "dumb-init-${DI_VER}" && \
+    make SHELL=/bin/sh && \
+    mv dumb-init .. && \
+    cd .. && \
+    curl -s "https://api.github.com/repos/Pryaxis/TShock/releases/tags/${RELEASE_TAG}" | \
+        grep "browser_download_url" | \
+        grep -o "https[^\"]\+" | \
+    xargs curl -sLo tshock.zip && \
+    unzip -d tshock tshock.zip && \
+    rm tshock.zip
+
+
+FROM mono:6.12.0.182
+
+RUN useradd -m terraria && \
+    mkdir /app && \
+    chown -R terraria /app
+
+USER terraria
+
+WORKDIR /app
+
+COPY --from=base /app/tshock /app/dumb-init /app/
+
+# Create worlds directory & symlink it
+RUN mkdir -p worlds logs config "$HOME/.local/share/Terraria" && \
+    ln -s /app/worlds "$HOME/.local/share/Terraria/Worlds"
+
+ENTRYPOINT ["/app/dumb-init", "--"]
+CMD mono /app/TerrariaServer.exe \
+    -configpath /app/config \
+    -logpath /app/logs \
+    -autocreate "$AUTOCREATE" \
+    -world /app/worlds/Main.wld

stacks/tshock/README.md

@@ -0,0 +1,29 @@
+# Build arguments
+The only required build argument is `RELEASE_TAG`. This is the GitHub tag of
+the release you wish to use. The releases can be found
+[here](https://github.com/Pryaxis/TShock/releases). The release tag is the
+identifier on the left. It should look something like  `v4.4.0-pre15`. You can
+then specify the variable in the `.env` file: e.g. `RELEASE_TAG=v4.4.0-pre15`
+
+# Environment variables
+The only provided environment variable is `AUTOCREATE`. This should be either
+`1`, `2` or `3`. It specifies how big the generated world should, e.g. small,
+medium or large. If a world file already exists, the existing file is used
+instead of generating a new one.
+
+# Mount points
+There a three useful mount points defined:
+
+* `/terraria/config`: this is where the server config files are located
+* `/terraria/logs`: the server log files are dumped here
+* `/terraria/worlds`: this is where the world files are stored
+
+You can mount these directories somewhere in the host file system by specifying
+the mount paths in the `.env` file. These can be both absolute or relative
+paths.
+
+# Other config variables
+You can specify the port using the `PORT` variable. This configures which port
+on the host system should be exposed for the Terraria server. This is also the
+port you need to enter into the Terraria client in order to connect to the
+server. The default port for Terraria servers is `7777`.