chore: add Dockerfile and compose with postgres for quick setup

Author: aregee

Dockerfile

@@ -0,0 +1,40 @@
+# Base Java image for building the application
+FROM clojure:lein AS build
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the project.clj and dependencies files
+COPY project.clj /app/
+
+# Download and cache dependencies
+RUN lein deps
+
+# Copy the source code and resources
+COPY src /app/src
+COPY resources /app/resources
+
+# Build the JAR file
+RUN lein uberjar
+
+# Base Java image for running the application
+FROM openjdk:11-jre-slim AS run
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the JAR file and resources from the build image
+COPY --from=build /app/target/etlp-mapper-0.1.0-SNAPSHOT-standalone.jar /app/
+COPY --from=build /app/resources /app/resources
+
+# Set the default port
+ENV PORT=3000
+
+ENV JDBC_URL=${JDBC_URL}
+
+# Expose the port
+EXPOSE $PORT
+
+# Run the application
+CMD java -jar /app/etlp-mapper-0.1.0-SNAPSHOT-standalone.jar :duct/migrator && \
+java -jar /app/etlp-mapper-0.1.0-SNAPSHOT-standalone.jar

docker-compose.yml

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+version: "3"
+
+services:
+  app:
+    image: "etlp-mapper"
+    ports:
+      - "3000:3000"
+    depends_on:
+      - db
+    environment:
+      JDBC_URL: "jdbc:postgresql://db:5432/mapper?user=postgres&password=postgres"
+
+  db:
+    image: postgres
+    environment:
+      POSTGRES_DB: mapper
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+    ports:
+      - "5432:5432"