feat: docker and docker-compose support

Introduced a Dockerfile and compose.yml to allow the application to run inside a Docker container. This removes the need for local system-level dependencies and offers a more predictable environment for the app. README.md was updated to include Docker-related instructions and an additional environment variable `DOCKER_DB_FOLDER` was added on top of existing ones for Docker support.

Dockerfile

@@ -0,0 +1,15 @@
+FROM golang:1.20.5-alpine
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+COPY adapters ./adapters
+COPY api ./api
+COPY domain ./domain
+COPY main ./main
+COPY useCases ./useCases
+
+RUN go mod download
+RUN go build -o startServer ./main
+
+CMD ["./startServer"]

README.md

@@ -10,17 +10,22 @@ Don't forget to setup the [Environment variables](#environment-variables)!
 
 ### Use with Docker
 
-TODO (or is it...)
+#### Compose
+
+The easiest way to run the project is to use docker-compose.
+You still need to set up the environment variables, but you can use the `.env` file for that.
+Note that some supplementary variables are required for docker-compose to work, like `DOCKER_DB_FOLDER`.
+
+```bash
+docker compose up --build -d
+```
 
 ### Build and run it yourself
 
-#### Requirements
-
-- The project is developed with Go 1.20.5
-
 #### Build
 
 There are 2 scripts to build the project:
+
 - `super_build.sh`
 - `super_build.bat`
 
@@ -35,11 +40,12 @@ of course required, but not necessarily via the `.env` file.
 ### Environment variables
 
 | Name                 | Type   | Description                             | Comment                                                                                               |
-|----------------------|--------|---------------------------------------|-------------------------------------------------------------------------------------------------------|
+|----------------------|--------|-----------------------------------------|-------------------------------------------------------------------------------------------------------|
 | ENVIRONMENT          | string | The environment the API is running in   | required, `development` or `production`                                                               |
 | PORT                 | int    | The port the API will use               | required                                                                                              |
 | CORS_ALLOWED_ORIGINS | string | The allowed origins for CORS            | required, semicolon separated list                                                                    |
 | DB_FILE              | string | The path to the sqlite db file          | required, can be at the root but name still required (e.g. `./gohcms.db`) ; have to end up with `.db` |
+| DOCKER_DB_FOLDER     | string | The path to the sqlite db file's folder | required with docker, this will basically be the host machine folder that contains the sqlite db file |
 
 ## API Usage
 

compose.yml

@@ -0,0 +1,12 @@
+services:
+  api:
+    build: .
+    ports:
+      - "${PORT}:8080"
+    volumes:
+      - ${DOCKER_DB_FOLDER}:/app/db/
+    environment:
+        - ENVIRONMENT=${ENVIRONMENT}
+        - PORT=8080
+        - CORS_ALLOWED_ORIGINS=${CORS_ALLOWED_ORIGINS}
+        - DB_FILE=/app/db/gohcms.db