What is the connection issue in docker?

Question

Docker

Here is my

docker-compose.yaml

version: "3.4"

services:

  php-fpm:
    container_name: php-fpm
    build: ./settings/php-fpm/
    working_dir: /app
    restart: always
    volumes:
      - ./app-data:/app
    env_file: 
      - .env
    depends_on:
      - database
    networks:
      - app-network

  nginx:
    container_name: nginx
    image: nginx:1.19-alpine
    restart: always
    tty: true
    command: nginx -g "daemon off;"
    ports:
      - 80:80
      - 443:443
    volumes:
      - ./app-data:/app
      - ./settings/nginx/nginx.conf:/etc/nginx/nginx.conf
      # - ./certbot-data:/etc/letsencrypt
    depends_on:
      - php-fpm
    networks:
      - app-network

  redis:
    container_name: redis
    image: redis:6.0-alpine
    restart: always
    ports:
      - 6379:6379
    volumes:
      - ./redis-data:/data
    depends_on:
      - php-fpm

  rabbitmq:
    container_name: rabbitmq
    image: rabbitmq:3.8-management
    restart: always
    privileged: true
    env_file: 
      - .env
    ports:
      - 5672:5672
      - 15672:15672
    depends_on:
      - php-fpm
    volumes:
      - ./rabbitmq-data:/var/lib/rabbitmq/

  database:
    container_name: database
    image: mysql:8
    restart: always
    volumes:
      - ./database-data:/var/lib/mysql
      - ./settings/mysql/config.cnf:/etc/mysql/conf.d/config.cnf
    ports:
      - 3306:3306
    env_file: 
      - .env
    networks:
      - app-network

  adminer:
    container_name: adminer
    image: adminer
    restart: always
    links: 
      - database:db
    depends_on:
      - database
    ports:
      - 8080:8080
    networks:
      - app-network

  database_postgres:
    image: postgres
    container_name: database_postgres
    env_file: 
      - .env
    volumes:
     - ./postgress-data:/var/lib/postgresql/data
    ports:
      - 3307:3307
    networks:
      - app-network

  sentry:
    image: sentry
    container_name: sentry
    links:
     - redis
     - database_postgres
    ports:
     - 5000:5000
    env_file: 
      - .env
    depends_on:
      - redis
    networks:
      - app-network

  sentry_cron:
    image: sentry
    container_name: sentry_cron
    depends_on:
      - sentry
    links:
     - redis
     - database_postgres
    command: "sentry run cron"
    env_file: 
      - .env
    networks:
      - app-network

  sentry_worker:
    image: sentry
    container_name: sentry_worker
    depends_on:
      - sentry
    links:
     - redis
     - database_postgres
    command: "sentry run worker"
    env_file: 
      - .env
    networks:
      - app-network

  # certbot:
  #   depends_on:
  #     - nginx
  #   image: certbot/certbot
  #   container_name: certbot
  #   volumes:
  #     - ./certbot-data:/etc/letsencrypt
  #     - ./app-data:/app
  #   command: certonly --webroot --webroot-path=/app --email [email protected] --agree-tos --no-eff-email --staging -d localhost -d app.local -d www.app.local

  # mongo:
  #   image: mongo:4.0
  #   restart: always
  #   ports:
  #     - "27100:27017" # map port to none standard port, to avoid conflicts with locally installed mongodb. 
  #   volumes:
  #     - /var/run/docker.sock:/var/run/docker.sock
  #   # отключение логов  
  #   logging:
  #     driver: none
  #   environment:
  #     MONGO_INITDB_ROOT_USERNAME: app
  #     MONGO_INITDB_ROOT_PASSWORD: app

  # mongo-express:
  #   image: mongo-express:latest-alpine
  #   depends_on:
  #     - mongo

networks:
  app-network:
    driver: bridge

When launched, it gives the following:

Did I link sentry with redis, or did I do something wrong?

Answer 1

sentry works for you on the network - app-network, but redis does not + for some reason you have links that seem to be no longer relevant at all

Answer 2

maybe redis just didn't have time to take off yet?
try in semi-automatic mode
docker-compose up -d redis
wait for
docker-compose up -d to take off