示例项目软件准备:
SwitchHosts下载: https://github.com/oldj/SwitchHosts/releases/download/v4.0.3/SwitchHosts_installer_4.0.3.6070.exe
SkyWalking6.1下载:
https://archive.apache.org/dist/skywalking/6.1.0/
mysql5.7以及workBench下载(下这个installer然后选mysql以及workBench的安装)
https://downloads.mysql.com/archives/get/p/25/file/mysql-installer-community-5.7.34.0.msi

Docker

容器用途

  • 标准化打包
  • 隔离
  • 标准化部署

image.png

DockerFile

用于构建镜像, 在每个子模块的根目录下有对应的Dockerfile
Account服务示例

  1. FROM java:8-jdk-alpine
  3. COPY ./target/account-svc-1.0.0.jar /usr/app/
  5. WORKDIR /usr/app
  7. RUN sh -c 'touch account-svc-1.0.0.jar'
  9. ENTRYPOINT ["java", "-jar", "account-svc-1.0.0.jar"]

MyAccount单页应用示例

  1. FROM node:alpine as builder
  2. WORKDIR '/build'
  3. COPY myaccount ./myaccount
  4. COPY resources ./resources
  5. COPY third_party ./third_party
  7. WORKDIR '/build/myaccount'
  9. RUN npm install
  10. RUN npm rebuild node-sass
  11. RUN npm run build
  13. RUN ls /build/myaccount/dist
  15. FROM nginx
  16. EXPOSE 80
  17. COPY --from=builder /build/myaccount/dist /usr/share/nginx/html

Docker Compose

用于定义和运行多容器应用的工具
可以将多容器应用的部署架构规范在docker-compose.yml中, 可以一键启停整个应用

个人理解: 只能说在本地或单机环境搞这个, 生产环境不会所有服务都部署在一台机, 可能需要多个compose文件就没啥卵用了

image.png
Docker Compose示例
在项目根目录下有个.env文件存放环境变量

  1. SPRING_PROFILES_ACTIVE=test
  2. SERVER_PORT=80
  3. EMAIL_SERVICE_ENDPOINT=http://email-service
  4. COMPANY_SERVICE_ENDPOINT=http://company-service
  5. ACCOUNT_SERVICE_ENDPOINT=http://account-service
  6. BOT_SERVICE_ENDPOINT=http://bot-service
  7. SMS_SERVICE_ENDPOINT=http://sms-service
  8. SENTRY_DSN=https://80aaf4ae889b414f9fe72e3904cd5246@sentry.io/1380198
  9. SIGNING_SECRET=your_signing_secret
  10. INTERCOM_ACCESS_TOKEN=YOUR_INTERCOM_ACCESS_TOKEN
  11. INTERCOM_APP_ID=TBD
  12. INTERCOM_SIGNING_SECRET=TBD
  13. ALIYUN_ACCESS_KEY=YOUR_ALIYUN_ACCESS_KEY
  14. ALIYUN_ACCESS_SECRET=YOUR_ALIYUN_ACCESS_SECRET
  15. RECAPTCHA_PUBLIC=test-recaptcha-public
  16. RECAPTCHA_PRIVATE=test-recaptcha-private
  17. ACCOUNT_DATASOURCE_URL=jdbc:mysql://host.docker.internal:3306/staffjoy_account?useUnicode=true&characterEncoding=utf-8
  18. ACCOUNT_DATASOURCE_USERNAME=root
  19. ACCOUNT_DATASOURCE_PASSWORD=root
  20. COMPANY_DATASOURCE_URL=jdbc:mysql://host.docker.internal:3306/staffjoy_company?useUnicode=true&characterEncoding=utf-8
  21. COMPANY_DATASOURCE_USERNAME=root
  22. COMPANY_DATASOURCE_PASSWORD=root

根目录下有docker-compose.yml

  1. version: '3.7' #使用的docker-compose版本为3.7
  3. services:
  4.   account-service:
  5.     build: ./account-svc #使用每个子模块根目录下的Dockerfile来构建镜像
  6.     image: boboweike/account-svc #镜像的名称
  7.     environment: #环境变量,通过外部传入
  8.       - SPRING_PROFILES_ACTIVE
  9.       - SERVER_PORT
  10.       - SIGNING_SECRET
  11.       - SENTRY_DSN
  12.       - EMAIL_SERVICE_ENDPOINT
  13.       - COMPANY_SERVICE_ENDPOINT
  14.       - BOT_SERVICE_ENDPOINT
  15.       - INTERCOM_ACCESS_TOKEN
  16.       - ACCOUNT_DATASOURCE_URL
  17.       - ACCOUNT_DATASOURCE_USERNAME
  18.       - ACCOUNT_DATASOURCE_PASSWORD
  19.     depends_on: #指定服务之前的依赖关系, 会先启动bot, email, 再启动account-service
  20.       - bot-service
  21.       - email-service
  22.     networks: #网络配置, 这个服务内部和外部都需可访问
  23.       - internal_access #见最下方配置
  24.       - external_access # db access
  26.   company-service:
  27.     build: ./company-svc
  28.     image: boboweike/company-svc
  29.     environment:
  30.       - SPRING_PROFILES_ACTIVE
  31.       - SERVER_PORT
  32.       - SIGNING_SECRET
  33.       - SENTRY_DSN
  34.       - EMAIL_SERVICE_ENDPOINT
  35.       - ACCOUNT_SERVICE_ENDPOINT
  36.       - BOT_SERVICE_ENDPOINT
  37.       - COMPANY_DATASOURCE_URL
  38.       - COMPANY_DATASOURCE_USERNAME
  39.       - COMPANY_DATASOURCE_PASSWORD
  40.     depends_on:
  41.       - bot-service
  42.       - email-service
  43.     networks:
  44.       - internal_access
  45.       - external_access # db access
  47.   bot-service:
  48.     build: ./bot-svc
  49.     image: boboweike/bot-svc
  50.     environment:
  51.       - SPRING_PROFILES_ACTIVE
  52.       - SERVER_PORT
  53.       - SENTRY_DSN
  54.       - EMAIL_SERVICE_ENDPOINT
  55.       - ACCOUNT_SERVICE_ENDPOINT
  56.       - COMPANY_SERVICE_ENDPOINT
  57.       - SMS_SERVICE_ENDPOINT
  58.     depends_on:
  59.       - email-service
  60.   #      - sms-svc # commented for demo
  61.     networks:
  62.       - internal_access
  64.   email-service:
  65.     build: ./mail-svc
  66.     image: boboweike/mail-svc
  67.     environment:
  68.       - SPRING_PROFILES_ACTIVE
  69.       - SERVER_PORT
  70.       - SENTRY_DSN
  71.       - ALIYUN_ACCESS_KEY
  72.       - ALIYUN_ACCESS_SECRET
  73.     networks:
  74.       - internal_access
  75.       - external_access # aliyun access
  77. # commented for demo
  78. #  sms-service:
  79. #    build: ./sms-svc
  80. #    image: sms-svc
  81. #    environment:
  82. #      - SPRING_PROFILES_ACTIVE=test
  84.   whoami-service:
  85.     build: ./whoami-svc
  86.     image: boboweike/whoami-svc
  87.     environment:
  88.       - SPRING_PROFILES_ACTIVE
  89.       - SERVER_PORT
  90.       - SENTRY_DSN
  91.       - INTERCOM_APP_ID
  92.       - INTERCOM_SIGNING_SECRET
  93.       - ACCOUNT_SERVICE_ENDPOINT
  94.       - COMPANY_SERVICE_ENDPOINT
  95.     depends_on:
  96.       - account-service
  97.       - company-service
  98.     networks:
  99.       - internal_access
  101. # commented for demo
  102. #  ical-service:
  103. #    build: ./ical-svc
  104. #    image: ical-svc
  105. #    environment:
  106. #      - SPRING_PROFILES_ACTIVE=test
  107. #    depends_on:
  108. #      - company-service
  110.   www-service:
  111.     build: ./web-app
  112.     image: boboweike/www-svc
  113.     environment:
  114.       - SPRING_PROFILES_ACTIVE
  115.       - SERVER_PORT
  116.       - SENTRY_DSN
  117.       - SIGNING_SECRET
  118.       - ACCOUNT_SERVICE_ENDPOINT
  119.       - COMPANY_SERVICE_ENDPOINT
  120.       - EMAIL_SERVICE_ENDPOINT
  121.       - RECAPTCHA_PUBLIC
  122.       - RECAPTCHA_PRIVATE
  123.     depends_on:
  124.       - account-service
  125.       - company-service
  126.       - email-service
  127.     networks:
  128.       - internal_access
  130.   faraday-service:
  131.     build: ./faraday
  132.     image: boboweike/faraday-svc
  133.     ports: #端口映射, 需要将容器环境的80端口映射到宿主机
  134.       - 80:80
  135.     environment:
  136.       - SPRING_PROFILES_ACTIVE
  137.       - SERVER_PORT
  138.       - SENTRY_DSN
  139.       - SIGNING_SECRET
  140.     depends_on:
  141.       - account-service
  142.       - company-service
  143.       - www-service
  144.       - whoami-service
  145. #      - ical-service # commented for demo
  146.       - myaccount-service
  147.       - app-service
  148.     networks:
  149.       - internal_access
  150.       - external_access
  153.   myaccount-service:
  154.     build:
  155.       context: ./frontend
  156.       dockerfile: myaccount/Dockerfile
  157.     image: boboweike/myaccount-spa
  158.     networks:
  159.       - internal_access
  161.   app-service:
  162.     build:
  163.       context: ./frontend
  164.       dockerfile: app/Dockerfile
  165.     image: boboweike/app-spa
  166.     networks:
  167.       - internal_access
  169. networks: #定义网络
  170.   internal_access: #内部访问
  171.     internal: true
  172.   external_access: #外部访问,比如db


1、docker-compose只能在一台宿主机上执行么？
2、假设宿主机内存为4G，有两个docker容器，每台都指定使用3G内存，那么这两个容器可以正常运行么？
3、docker容器对宿主机硬件资源（CPU，内存）的占用需要如何设置呢？ 作者回复: 你好，回答你的问题：
1. docker-compose主要是在单机上玩的。但是现在v3版本的docker-compose.yml文件也支持在docker swarm集群上运行，要用docker stack命令，同时对yml文件也有一些限制，参考：https://stackoverflow.com/questions/40737389/docker-compose-deploying-service-in-multiple-hosts

  1. 在可用内存4g的宿主机上，可以同时运行两个指定3G内存的容器，只要两个容器实际使用的内存都不会超过3g(当然两者总和也不能超过4g，否则会被OS杀掉)，你可以尝试下打开两个终端，同时运行：
    docker run -m 20G -it ubuntu bash

  2. CPU/MEM限制，具体可以参考docker官方文档，写得很详细：
    https://docs.docker.com/config/containers/resource_constraints/

部署本地

win安装Docker Desktop:
https://www.docker.com/products/docker-desktop
安装失败, 后续略