Include

Ele não utiliza um arquivo como base para extender, como no Extends. Ele importa o arquivo para a configuração do Docker Compose.

Renomear o arquivo compose.dev.yaml para kubenews.compose.yaml:

~/devops-kube-news$ mv compose.dev.yaml kubenews.compose.yaml

Transferir o serviço kubenews do arquivo compose.yaml para o arquivo kubenes.compose.yaml.

Conteúdo do arquivo kubenews.compose.yaml:

services:
  kubenews:
    image: marcelodpbarbieri/kube-news:${KUBENEWS_TAG:-latest}
    build:
      context: ./src
      dockerfile: Dockerfile
    ports:
      - 8080:8080
    depends_on:
      - postgre
    environment:
      DB_DATABASE: ${POSTGRES_DB}
      DB_USERNAME: ${POSTGRES_USER}
      DB_PASSWORD: ${POSTGRES_PASSWORD}
      DB_HOST: postgre
    networks:
      - kubenews-net

Conteúdo do arquivo compose.yaml:

services:
  postgre:
    image: postgres:${POSTGRES_TAG}
    ports:
      - 5432:5432
    environment:
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_DB: ${POSTGRES_DB}
    volumes:
      - postgre-docker-vol:/var/lib/postgresql/data
    networks:
      - kubenews-net

include:
  - ./kubenews.compose.yaml
    
volumes:
  postgre-docker-vol:

networks:
  kubenews-net:
    driver: bridge

Destaque para:

include:
  - ./kubenews.compose.yaml

Configuração do Docker Compose:

~/devops-kube-news$ docker compose config
name: devops-kube-news
services:
  kubenews:
    build:
      context: /home/marcelo/devops-kube-news/src
      dockerfile: Dockerfile
    depends_on:
      postgre:
        condition: service_started
        required: true
    environment:
      DB_DATABASE: kubenews
      DB_HOST: postgre
      DB_PASSWORD: kubenews
      DB_USERNAME: kubenews
    image: marcelodpbarbieri/kube-news:v1
    networks:
      kubenews-net: null
    ports:
      - mode: ingress
        target: 8080
        published: "8080"
        protocol: tcp
  postgre:
    environment:
      POSTGRES_DB: kubenews
      POSTGRES_PASSWORD: kubenews
      POSTGRES_USER: kubenews
    image: postgres:13.16
    networks:
      kubenews-net: null
    ports:
      - mode: ingress
        target: 5432
        published: "5432"
        protocol: tcp
    volumes:
      - type: volume
        source: postgre-docker-vol
        target: /var/lib/postgresql/data
        volume: {}
networks:
  kubenews-net:
    name: devops-kube-news_kubenews-net
    driver: bridge
volumes:
  postgre-docker-vol:
    name: devops-kube-news_postgre-docker-vol

Pode-se até mesmo especificar outro volume teste-vol no arquivo kubenews.compose.yaml:

~/devops-kube-news$ cat kubenews.compose.yaml
services:
  kubenews:
    image: marcelodpbarbieri/kube-news:${KUBENEWS_TAG:-latest}
    build:
      context: ./src
      dockerfile: Dockerfile
    ports:
      - 8080:8080
    depends_on:
      - postgre
    environment:
      DB_DATABASE: ${POSTGRES_DB}
      DB_USERNAME: ${POSTGRES_USER}
      DB_PASSWORD: ${POSTGRES_PASSWORD}
      DB_HOST: postgre
    networks:
      - kubenews-net
    volumes:
      - teste-vol:/teste

volumes:
  teste-vol:

Verificar as configurações do Docker Compose:

~/devops-kube-news$ docker compose config
services:
  kubenews:
    build:
      context: /home/marcelo/devops-kube-news/src
      dockerfile: Dockerfile
    depends_on:
      postgre:
        condition: service_started
        required: true
    environment:
      DB_DATABASE: kubenews
      DB_HOST: postgre
      DB_PASSWORD: kubenews
      DB_USERNAME: kubenews
    image: marcelodpbarbieri/kube-news:v1
    networks:
      kubenews-net: null
    ports:
      - mode: ingress
        target: 8080
        published: "8080"
        protocol: tcp
    volumes:
      - type: volume
        source: teste-vol
        target: /teste
        volume: {}
  postgre:
    environment:
      POSTGRES_DB: kubenews
      POSTGRES_PASSWORD: kubenews
      POSTGRES_USER: kubenews
    image: postgres:13.16
    networks:
      kubenews-net: null
    ports:
      - mode: ingress
        target: 5432
        published: "5432"
        protocol: tcp
    volumes:
      - type: volume
        source: postgre-docker-vol
        target: /var/lib/postgresql/data
        volume: {}
networks:
  kubenews-net:
    name: devops-kube-news_kubenews-net
    driver: bridge
volumes:
  postgre-docker-vol:
    name: devops-kube-news_postgre-docker-vol
  teste-vol:
    name: devops-kube-news_teste-vol    

Destaque para:

    volumes:
      - type: volume
        target: teste-vol
        volume: {}