Docker compose 和 Spring Boot 配置服务器

Question

我有一个工作的 Spring Boot Web 应用程序，它从 Spring Boot 配置服务器获取其配置属性。我的应用程序有 3 个环境 - dev、qa 和 prod。在我的资源文件夹中，我有 3 个文件 bootstrap-dev.properties、bootstarp-qa.properties 和 bootstrap-prod.properties。下面显示了一个示例引导文件

spring.application.name=MyApp
spring.cloud.config.uri=http://my.config.server
spring.cloud.config.label=feature-branch-101
spring.output.ansi.enabled=ALWAYS
spring.profiles.active=dev

我需要在我的 docker-compose 文件中放入什么内容，该文件可以从 Spring Boot 配置服务器读取配置并支持 3 种不同的环境。有人有样品吗？

Answer 1

JHispter 的人就是这样做的（请参阅下面的文件）

我认为诀窍在于 app.yml 文件，您可以在该文件中设置要为您的应用程序环境运行的配置文件。像这样：

SPRING_PROFILES_ACTIVE=prod,swagger

所以，从那时起，application.yml 和 bootstrap.yml 知道将哪些环境属性加载到 SpringBoot 中

Dockerfile

FROM openjdk:8-jre-alpine

ENV SPRING_OUTPUT_ANSI_ENABLED=ALWAYS \
    DELAY_SLEEP=0 \
    JAVA_OPTS=""

# add directly the war
ADD *.war /app.war

EXPOSE 8080
CMD echo "The application will start in ${DELAY_SLEEP}s..." && \
    sleep ${DELAY_SLEEP} && \
    java ${JAVA_OPTS} -jar /app.war

app.yml

version: '2'
services:
    my-app:
        image: myapp
        environment:
            - SPRING_PROFILES_ACTIVE=prod,swagger
            - SPRING_DATASOURCE_URL=jdbc:mysql://my-app-mysql:3306/my-app?useUnicode=true&characterEncoding=utf8&useSSL=false
            - DELAY_SLEEP=10 # gives time for the database to boot before the application
        ports:
            - 8080:8080
    my-app-mysql:
        extends:
            file: mysql.yml
            service: my-app-mysql

mysql.yml（如果需要）

version: '2'
services:
    my-app-mysql:
        image: mysql:5.7.18
        # volumes:
        #     - ~/volumes/my-app/mysql/:/var/lib/mysql/
        environment:
            - MYSQL_USER=root
            - MYSQL_ALLOW_EMPTY_PASSWORD=yes
            - MYSQL_DATABASE=my-app
        ports:
            - 3306:3306
        command: mysqld --lower_case_table_names=1 --skip-ssl --character_set_server=utf8 --explicit_defaults_for_timestamp

bootstrap.yml

spring:
    application:
        name: my-app
    profiles:
        # The commented value for `active` can be replaced with valid Spring profiles to load.
        # Otherwise, it will be filled in by maven when building the WAR file
        # Either way, it can be overridden by `--spring.profiles.active` value passed in the commandline or `-Dspring.profiles.active` set in `JAVA_OPTS`
        active: #spring.profiles.active#
    cloud:
        config:
            fail-fast: false # if not in "prod" profile, do not force to use Spring Cloud Config
            uri: http://admin:admin@localhost:8761/config
            # name of the config server's property source (file.yml) that we want to use
            name: MyApp
            profile: dev # profile(s) of the property source
            label: master # toggle to switch to a different version of the configuration as stored in git
            # it can be set to any label, branch or commit of the config source git repository