Use .env file for docker-compose

.env

@@ -0,0 +1,19 @@
+[Elasticsearch]
+ELASTICSEARCH_HOST="elasticsearch"
+ELASTICSEARCH_PORT=9200
+ELASTICSEARCH_MAX_RESULTS=20
+ELASTICSEARCH_TIMEOUT=10
+
+[Back-end]
+BACKEND_HOST="0.0.0.0"
+BACKEND_PORT=5000
+WORKERS_COUNT=1
+RELOAD="true"
+LOG_LEVEL="INFO"
+
+[Front-end]
+REACT_APP_API_URL="http://localhost:5000/graphql"
+REACT_APP_PORT=3000
+
+[SEED]
+seed=false

COMMENTS.md

@@ -75,5 +75,3 @@ Irei dedicar essa seção para falar de coisas que eu faria, ou gostaria de impl
 - Implementar testes automatizados de UI;
 
 - Caso esse projeto fosse deployado para uma cloud, eu implementaria um CD no workflow do GitHub Actions;
-
-- Utilizar alguma ferramenta para passar as variáveis de ambiente de um arquivo para o *docker-compose*.

back/.env.sample

@@ -1,7 +1,6 @@
 [Application]
-ENVIRONMENT="DEV"
-APPLICATION_HOST="0.0.0.0"
-APPLICATION_PORT=5000
+BACKEND_HOST="0.0.0.0"
+BACKEND_PORT=5000
 WORKERS_COUNT=1
 RELOAD="true"
 LOG_LEVEL="INFO"

back/src/config.py

@@ -20,8 +20,8 @@ class Config:
     Base configuration.
     """
 
-    HOST = os.getenv("APPLICATION_HOST", "0.0.0.0")
-    PORT = int(os.getenv("APPLICATION_PORT", "5000"))
+    HOST = os.getenv("BACKEND_HOST", "0.0.0.0")
+    PORT = int(os.getenv("BACKEND_PORT", "5000"))
     WORKERS_COUNT = int(os.getenv("WORKERS_COUNT", "1"))
     RELOAD = os.getenv("RELOAD", "true").lower() == "true"
     LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO").lower()

docker-compose.yml

@@ -6,30 +6,31 @@ services:
     environment:
       - discovery.type=single-node
     ports:
-      - "9200:9200"
+      - "${ELASTICSEARCH_PORT}:${ELASTICSEARCH_PORT}"
       - "9300:9300"
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:9200 || exit 1"]
+      test: ["CMD-SHELL", "curl -f http://localhost:${ELASTICSEARCH_PORT} || exit 1"]
       interval: 10s
       timeout: 5s
       retries: 5
 
   backend:
     image: python:3.10
+    env_file: .env
     working_dir: /app
     volumes:
       - ./back:/app
     ports:
-      - "5000:5000"
+      - "${BACKEND_PORT}:${BACKEND_PORT}"
 
     command: >
       sh -c 'pip install poetry && poetry install && (echo "Waiting for Elasticsearch to be ready..." &&
 
-        until curl -s http://elasticsearch:9200/_cluster/health | grep -q "\"status\":\"green\|yellow\""; do
+        until curl -s http://elasticsearch:${ELASTICSEARCH_PORT}/_cluster/health | grep -q "\"status\":\"green\|yellow\""; do
             echo "Elasticsearch not ready yet, waiting...";
             sleep 5;
         done) && 
-        
+
         echo "Elasticsearch is ready!"; 
         
         if [ "$seed" = "true" ]; then
@@ -40,21 +41,22 @@ services:
     depends_on:
       - elasticsearch
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:5000 || exit 1"]
+      test: ["CMD-SHELL", "curl -f http://localhost:${BACKEND_PORT} || exit 1"]
       interval: 10s
       timeout: 5s
       retries: 5
 
   frontend:
     image: node:16
+    env_file: .env
     working_dir: /app
     volumes:
       - ./front:/app
     ports:
-      - "3000:3000"
-    command: sh -c "npm install && npm start"
+      - "${REACT_APP_PORT}:${REACT_APP_PORT}"
+    command: sh -c "npm install && export PORT=${REACT_APP_PORT} && npm start"
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:3000 || exit 1"]
+      test: ["CMD-SHELL", "curl -f http://localhost:${REACT_APP_PORT} || exit 1"]
       interval: 10s
       timeout: 5s
       retries: 5