Added Dockerfile and docker-compose.yaml

Dockerfile

@@ -0,0 +1,11 @@
+FROM haskell:9.2.8-slim-buster
+
+WORKDIR /home/saundersp/haskell_playground
+
+RUN cabal update
+
+COPY . .
+
+RUN cabal build
+
+ENTRYPOINT ["cabal", "run"]

docker-compose.yaml

@@ -0,0 +1,7 @@
+services:
+  haskell-playground:
+    image: saundersp/haskell-playground
+    pull_policy: never
+    build: .
+    volumes:
+      - ./:/home/saundersp/haskell_playground