swarm docker eureka-阿里云开发者社区

作者 hoxing

1. 初始化swarm集群

1. 实例选择同区域，同交换机
2. 实例可以按小时计费，也可以添加已购买实例，本文选择选购三台4核8G做实验
3. 每台实例带宽可以选择最小，两个原因：服务之间数据传输为内网,对外暴露的 api会走阿里云的负载均衡，按流量收费
4. 价格(2018-11时期)简单计算一个月费用三台实例5.568/小时，负载均衡管理费0.02/小时，负载均衡流量300/月,每个月花费差不多4323
5. 创建完成之后, 会生成一个集群实例，一个负载均衡实例，负载80端口会映射集群路由器的9080端口
6. 默认一级域名 cn-shenzhen.alicontainer.com   默认二级域名$container-id.cn-shenzhen.alicontainer.com，域名可以做改动, 本文默认。

tool-editor

2.jenkins 2.89.2

1.  镜像选择2.89.2 阿里云默认容器编排比此版本低
2.  容器编排会有一些slave节点，这些节点的意思是每种不同的编译环境,如果不需要可以去掉，保留slave-java
3.  按照下面配置文件，在浏览器下访问 http://jenkins.$container-id.cn-shenzhen.alicontainer.com
4.  jenkins 初始化页面会有一个秘钥,秘钥可以在容器生成的日志里边查
5.  安装按照默认即可，之后根据个人需求补插件

jenkins:
    image: 'registry.cn-hangzhou.aliyuncs.com/acs-sample/jenkins:2.89.2'
    mem_limit: 4000000000
    volumes:
        - /var/lib/docker/jenkins:/var/jenkins_home
    restart: always 
    labels:
        aliyun.scale: '1'
        aliyun.probe.url: 'tcp://container:8080'
        aliyun.probe.initial_delay_seconds: '10'
        aliyun.routing.port_8080: jenkins
    links:
        - slave-golang
        - slave-java
        - slave-nodejs
        - slave-python
        - slave-php
slave-golang:
    image: 'registry.aliyuncs.com/acs-sample/jenkins-slave-dind-golang'
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock
    restart: always 
    labels:
        aliyun.scale: '1'
slave-java:
    image: 'registry.aliyuncs.com/acs-sample/jenkins-slave-dind-java'
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock
    restart: always 
    labels:
        aliyun.scale: '1'        
slave-nodejs:
    image: 'registry.aliyuncs.com/acs-sample/jenkins-slave-dind-nodejs'
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock
    restart: always 
    labels:
        aliyun.scale: '1'
slave-python:
    image: 'registry.aliyuncs.com/acs-sample/jenkins-slave-dind-python'
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock    
    restart: always 
    labels:
        aliyun.scale: '1'
slave-php:
    image: 'registry.aliyuncs.com/acs-sample/jenkins-slave-dind-php'
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock    
    restart: always 
    labels:
        aliyun.scale: '1'

tool-editor

3.gitlab

 1. aliyun.routing.port_80: gitlab 三级域名改成这个
 2. GITLAB_HOST=gitlab.$container-id.cn-shenzhen.alicontainer.com，这个地方改成要生成的服务域名，之后项目方便复制代码链接
 3. 如果需要配置邮件登录(我用的qsmtp.qq.com),之后有用户注册会发验证邮件;如果不需要可以按照阿里云默认编排模板
 4. 访问 http://gitlab.$container-id.cn-shenzhen.alicontainer.com
 5. 初始root用户密码可以登录到容器里边 是这个脚本 /home/git/gitlab/bin/rails，具体参考https://docs.gitlab.com/ce/security/reset_root_password.html

postgresql:
  image: registry.cn-hangzhou.aliyuncs.com/acs-sample/postgresql-sameersbn:9.4-24
  environment:
    - DB_USER=gitlab
    - DB_PASS=password
    - DB_NAME=gitlabhq_production
    - DB_EXTENSION=pg_trgm
  labels:
    aliyun.probe.url: tcp://container:5432
  volumes:
    - /srv/docker/gitlab/postgresql:/var/lib/postgresql
gitlab:
  image: registry.cn-hangzhou.aliyuncs.com/acs-sample/gitlab-sameersbn:latest
  links:
    - redis:redisio
    - postgresql:postgresql
  ports:
    - "10080:80"
    - "10022:22"
  environment:
    - TZ=Asia/Shanghai
    - SMTP_ENABLED=true
    - SMTP_DOMAIN=qq.com
    - SMTP_HOST=smtp.qq.com
    - SMTP_PORT=465
    - SMTP_USER=8888888@qq.com
    - SMTP_PASS=123456789
    - SMTP_STARTTLS=true
    - SMTP_TLS=true
    - SMTP_AUTHENTICATION=login
    - GITLAB_TIMEZONE=Kolkata
    - GITLAB_HOST=gitlab.$container-id.cn-shenzhen.alicontainer.com
    - GITLAB_PORT=80
    - GITLAB_SSH_PORT=22
    - GITLAB_EMAIL=8888888@qq.com
    - GITLAB_EMAIL_REPLY_TO=noreply@example.com
    - GITLAB_BACKUPS=daily
    - GITLAB_BACKUP_TIME=01:00
    - GITLAB_SECRETS_DB_KEY_BASE=long-and-random-alphanumeric-string
    - GITLAB_SECRETS_SECRET_KEY_BASE=long-and-random-alpha-numeric-string
    - GITLAB_SECRETS_OTP_KEY_BASE=long-and-random-alpha-numeric-string
  volumes:
    - /srv/docker/gitlab/gitlab:/home/git/data
  labels:
    aliyun.probe.url: tcp://container:80
    aliyun.probe.initial_delay_seconds: "10"
    aliyun.routing.port_80: gitlab
redis:
  image: registry.cn-hangzhou.aliyuncs.com/acs-sample/redis-sameersbn:latest
  volumes:
    - /srv/docker/gitlab/redis:/var/lib/redis

tool-editor

4.eureka高可用

1. image要用自己的，本文举例
2. 网络别名要设置
3. docker内jar包路径注意改
4. ADDITIONAL_EUREKA_SERVER_LIST目的eureka是配置文件的唯一(不用写三个)
5. 会生成三个服务链接 http://eureka[1,2,3].$container-id.cn-shenzhen.alicontainer.com

 eureka1:
  image: 'registry-vpc.cn-shenzhen.aliyuncs.com/project/eureka:master'
  networks:
    multi-host-network:
      aliases:
        - eureka1
  mem_limit: 1073741824
  environment:
    - LANG=C.UTF-8
    - JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
    - ADDITIONAL_EUREKA_SERVER_LIST=http://{account}:{pass}@eureka2:8761/eureka/,http://{account}:{pass}8@eureka3:8761/eureka/
    - HOSTNAME=eureka1
  kernel_memory: 0
  memswap_reservation: 0
  restart: always
  shm_size: 0
  memswap_limit: 0
  labels:
    aliyun.scale: '1'
    aliyun.routing.port_8761: 'http://eureka1'
  command:
    - java
    - '-jar'
    - '-Dspring.profiles.active=prd'
    - /usr/local/javaapp/eureka.jar
eureka2:
  image: 'registry-vpc.cn-shenzhen.aliyuncs.com/project/eureka:master'
  networks:
    multi-host-network:
      aliases:
        - eureka2
  mem_limit: 1073741824
  environment:
    - LANG=C.UTF-8
    - JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
    - ADDITIONAL_EUREKA_SERVER_LIST=http://{account}:{pass}@eureka1:8761/eureka/,http://{account}:{pass}@eureka3:8761/eureka/
    - HOSTNAME=eureka2
  kernel_memory: 0
  memswap_reservation: 0
  restart: always
  shm_size: 0
  memswap_limit: 0
  labels:
    aliyun.scale: '1'
    aliyun.routing.port_8761: 'http://eureka2'
  command:
    - java
    - '-jar'
    - '-Dspring.profiles.active=prd'
    - /usr/local/javaapp/eureka.jar
eureka3:
  image: 'registry-vpc.cn-shenzhen.aliyuncs.com/project/eureka:master'
  networks:
    multi-host-network:
      aliases:
        - eureka3
  mem_limit: 1073741824
  environment:
    - LANG=C.UTF-8
    - JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
    - ADDITIONAL_EUREKA_SERVER_LIST=http://{account}:{pass}@eureka1:8761/eureka/,http://{account}:{pass}@eureka2:8761/eureka/
    - HOSTNAME=eureka3
  kernel_memory: 0
  memswap_reservation: 0
  restart: always
  shm_size: 0
  memswap_limit: 0
  labels:
    aliyun.scale: '1'
    aliyun.routing.port_8761: 'http://eureka3'
  command:
    - java
    - '-jar'
    - '-Dspring.profiles.active=prd'
    - /usr/local/javaapp/eureka.jar

tool-editor