微服务下SpringBoot应用多环境发布

Z时代
2024-01-10
分类：综合

说明

解决微服务在多套环境发布的问题，解决开发环境和预发环境切换的问题，支持 N 套开发环境水平扩展。

Spring Boot Dockerfile 通用模板

FROM registry.cn-hangzhou.aliyuncs.com/micro-java/openjdk:8-jre-alpine MAINTAINER 545544032@qq.com ENV TZ="Asia/Shanghai" JVM_PARAMS=" " SPRING_PARAMS=" " ADD target/*.jar /server.jar EXPOSE 8080 CMD java $JVM_PARAMS -Djava.security.egd=file:/dev/./urandom -jar /server.jar $SPRING_PARAMS

Note：registry.cn-hangzhou.aliyuncs.com/micro-java/openjdk:8-jre-alpine 基于镜像 openjdk:8-jre-alpine，额外安装了工具 curl，用于 docker service 的 health check

开发/测试环境 docker stack 通用模板

version: "3.4"
services:
    "{{ service_name }}":
         image: "{{ registry_url }}/{{ image_name }}:{{ image_version }}"
         environment:
           JVM_PARAMS: "{{ jvm_heap }}"            # 例如: -Xmx800m -Xms800m
           SPRING_PARAMS: " {{ spring_params }}"
         networks:
           - overlay-network
         volumes:
           - type: bind
             source: "/data/spring-boot/{{ service-name }}/application.properties"
             target: /application.properties
         stop_grace_period: 30s 
         deploy:
           replicas: 2
           resources:
             limits:
               memory: "{{ memory_limit }}"              # 例如 : 1024MB
           update_config:
             parallelism: 1            
             delay: 0s                 
             failure_action: rollback  
             max_failure_ratio: 0      
             order: stop-first
           restart_policy:
             condition: on-failure
             max_attempts: 3
         healthcheck:
           test: "curl 127.0.0.1:8080 || exit 1"
           interval: 3s
           timeout: 5s
           retries: 3
           start_period: 1m
networks:
  overlay-network:
    driver: overlay
    attachable: true