DevOps之docker自动化部署web应用

devops项目开发过程中，为了统一前后端docker镜像的生成过程,统一用gradle构建。
依赖的软件:npm,gradle,harbor,jdk
本文介绍使用gradle构建前端应用需要的配置：

项目根目录添加以下四个文件

• settings.gradle

rootProject.name = 'devops-portal'//自行修改
ext{
  //优先级低，各模块docker-build时会覆写该参数
  dockerTag = "dev"
  dockerGroup = "devops"
}

• build.gradle

buildscript {
  repositories {
    maven { url "http://.../repository/aliyun/" }
    mavenCentral()
  }
  dependencies {
    classpath "com.bmuschko:gradle-docker-plugin:3.2.1"
  }
}

plugins {
  id "com.moowork.node" version "1.1.1"
  id 'java'
}
apply plugin: 'com.bmuschko.docker-java-application'
dependencies{
  compile group: 'org.gradle', name: 'gradle-tooling-api', version: '4.3'
}

buildDir="frontend"
//调用npm run build命令的Gradle任务
task npmBuild(type: NpmTask, dependsOn: npmInstall) {
  group = 'node'
  args = ['run', 'build']
}
//调用npm run dev
task npmDev(type: NpmTask, dependsOn: npmInstall) {
  group = 'node'
  args = ['run', 'dev']
}

task cleanDocker(type: Delete) {
  delete fileTree("${buildDir}/docker") {
    include '**/*'
  }
}
task copyDockerfile(type: Copy) {
  group = "docker"
  dependsOn cleanDocker,npmBuild
  from "./dist","Dockerfile","default.conf"
  into "${project.buildDir}/docker"
}
docker{
  registryCredentials {
    url = 'http://docker-daemon:5678'
    username = 'devops-user'
    password = 'devops-user-passwd'
  }
}
import com.bmuschko.gradle.docker.tasks.image.*
task buildImage(type: DockerBuildImage) {
  dependsOn copyDockerfile
  def destFile = file("frontend/docker/Dockerfile")
  group = "docker"
  inputDir = destFile.parentFile
  tags = [
    "harbor.anji-allways.com/${dockerGroup}/${project.name}:${dockerTag}".toString()
  ]
}
task tagImage(type: DockerTagImage,dependsOn: buildImage){
  imageId = ''
  repository = "harbor.anji-allways.com/${dockerGroup}/${project.name}"
  tag = "${dockerTag}"
  doFirst{
    imageId = buildImage.getImageId()
  }
}
task pushImage(type: DockerPushImage,dependsOn: tagImage){
  imageName = tagImage.repository
  tag =  tagImage.tag
}

• Dockerfile

FROM harbor.anji-allways.com/library/nginx:1.10
MAINTAINER owner@anji-allways.com.cn

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

COPY ./ /data/work/devops/
COPY ./default.conf /etc/nginx/conf.d/
ENV PORT 80
CMD ["nginx","-g","daemon off;"]

• nginx-config: default.conf

server {
  listen 80;
  server_name localhost;
  #charset koi8-r;
  access_log /var/log/nginx/access.log main;
  location / {
    error_page 404 /index.html;
    root /data/work/devops;
    index index.html index.htm;
  }
  #error_page404/404.html;
  # redirect server error pages to the static page /50x.html
  #
  error_page 500 502 503 504/50x.html;
  location = /50x.html {
    root html;
  }
}

开发环境 docker部署应用

1、生成镜像并上传：
 gradle pushImage -xTest -PdockerTag=dev1.0.3 -PdockerGroup=devops
2、在开发服务器上执行如下命令：
 docker stop devops-portal && docker rm devops-portal
 docker run -p 8081:80 --name devops-portal harbor.anji-allways.com/devops/devops-portal:dev1.0.3 &
3、访问 http://ip:8081/