Sean/matching docker

apps/matching-service/.env.example

@@ -1,4 +1,9 @@
 PORT=8081
 MATCH_TIMEOUT=10
 JWT_SECRET=you-can-replace-this-with-your-own-secret
-REDIS_URL=localhost:6379
+
+# if you are NOT USING docker, use the below url
+REDIS_URL=localhost:6379
+
+# if you are USING docker, use the below url
+# REDIS_URL=redis-container:6379

apps/matching-service/Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.23
+
+WORKDIR /usr/src/app
+
+# pre-copy/cache go.mod for pre-downloading dependencies and only redownloading them in subsequent builds if they change
+COPY go.mod go.sum ./
+
+RUN go mod tidy && go mod download && go mod verify
+
+COPY .env /usr/src/app/.env
+
+COPY . .
+
+RUN go build -v -o /usr/local/bin/app ./main.go
+
+EXPOSE 8081
+
+CMD ["app"]

apps/matching-service/README.md

@@ -27,7 +27,7 @@ go mod tidy
 - `PORT`: Specifies the port for the WebSocket server. Default is `8081`.
 - `JWT_SECRET`: The secret key used to verify JWT tokens.
 - `MATCH_TIMEOUT`: The time in seconds to wait for a match before timing out.
-- `REDIS_URL`: The URL for the Redis server. Default is `localhost:6379`.
+- `REDIS_URL`: The URL for the Redis server. Default is `localhost:6379`. If you are using docker, use `redis-container:6379`
 
 4. Start a local redis server:
 
@@ -121,6 +121,24 @@ Make sure to open the HTML file in a web browser while the WebSocket server is r
 
 You can open one instance of the HTML file in multiple tabs to simulate multiple clients connecting to the server. (In the future: ensure that only one connection is allowed per user)
 
-## Docker Support
+## Running the Application via Docker
 
-TODO: Add section for Docker setup and usage instructions.
+Before running the following commands, ensure that the URL for the Redis server in `.env` file has been changed to `redis-container:6379`
+
+To run the application via Docker, run the following command:
+
+```bash
+docker build -f Dockerfile -t match-go-app .
+```
+
+```bash
+docker network create redis-go-network
+```
+
+```bash
+docker run -d --name redis-container --network redis-go-network redis
+```
+
+```bash
+docker run -d -p 8081:8081 --name go-app-container --network redis-go-network match-go-app
+```