java - Spring 配置附加位置作为 docker-compose 中的环境变量

Question

我试图告诉 Spring 从 jar 外部的文件添加属性。

https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html#boot-features-external-config-application-property-files

我有 docker compose 文件，我在其中为 Spring Boot 应用程序定义环境变量。

 sample-service:
    build:
      context: "./sample-service/app"
      dockerfile: Dockerfile
    container_name: sample-service
    restart: always

    mem_limit: 400000000
    env_file: .env
    environment:
      - "SPRING_PROFILE=dev"
      - "APPLICATION_NAME=sample-service"
      - "SPRING_CONFIG_ADDITIONAL-LOCATION=file:/app/sample-service-config.yml"
      - "JAVA_OPTIONS=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5006"

    ports:
      - 5006:5006

当我在调试器中时，我执行自定义代码。

System.getenv("SPRING_PROFILE")

它返回dev。当我运行时

System.getenv("APPLICATION_NAME")

它返回sample-service。当我运行时

System.getenv("SPRING_CONFIG_ADDITIONAL-LOCATION")

它返回null。

<小时/>

更新

有人建议docker不支持连字符 https://github.com/docker/compose/issues/2370

Answer 1

您还可以使用以下格式:

env_file: .env
  environment:
    - SPRING_PROFILE=dev
    - APPLICATION_NAME=sample-service
    - SPRING_CONFIG_ADDITIONAL-LOCATION="file:/app/sample-service-config.yml"
    - JAVA_OPTIONS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5006"

引用 -Environment variable for docker compose