1 continuous integration

1.1 Software Development Life Cycle

The software development life cycle is called SDLC (Software Development Life Cycle), which is a collection of planning, development, testing, and deployment processes. As shown below :

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• demand analysis

This is the first stage of life cycle, according to project requirements, team executive analysis of a feasibility plan. Project demand may be the company's internal or customer proposed. This phase is mainly collected for information, and it is also possible to improve and re-a new project for existing projects. Also analyze how long the project is budget, which is the benefit and layout, which is also the goal created by the project.

• design

The second stage is the design phase, system architecture and satisfactory state (what is going to do, what functions), and create a project plan. Planning can be rendered using chart, layout design, or text.

• accomplish

The third stage is the implementation phase, the project manager creates and distributes work to the beaker, developers develop code based on the task and the target defined in the design phase. It can be done in accordance with the size and complexity of the project.

• test

Test staff conduct code testing, including functional testing, code testing, pressure testing, etc.

• evolution

In the final stage, it is the continuous improvement and maintenance stage of the product. According to the user's usage, it may be necessary to modify a function, bug fix, and function increase.

1.2 Software Development Waterfall Model

The waterfall model is the most famous and most commonly used software development model. The waterfall model is a series of software development processes. It is proneted by the manufacturing industry. A highly scheduled structure flow flows in one direction, a bit like a production line. At the beginning of the waterfall model, there is no other development model, there are a lot of things to rely on developers to guess and develop. Such a model is only applicable to those simple software development, but it is not suitable for development.

The figure below shows a software development model.

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Advantage	Disadvantage
Easy to use and understand	The division of each stage is completely fixed, and a large number of documents is generated between the phases, which greatly increases the workload.
You only need to pay attention to the follow-up phase after the current phase is completed.	Since the development model is linear, the user can only see the development of the development, which has increased the development risk.
Provide projects with inspection nodes in phases	The highlight of the waterfall model is not to adapt to the changes in user needs.

1.3 software agility development

• What is agile development?

The core of agile development is an iterative development and incremental development (Incremental Development).

• What is iterative development?

For large software projects, traditional development methods are developed with a large period (such as one year), the whole process is "big development"; iterative development is different, it will be split into multiple small cycles That is, "big development" becomes "small development", each small development is the same process, so it seems that it seems to be repeated in the same step.

For example, Spacex wants to create a big thrust rocket to send human beings to Mars. However, it is not a big rocket at the beginning, but it is the most simple rocket Falcon 1. As a result, the first launch exploded, until the fourth time is transmitted, the track is successfully entered. Then, the medium rocket Falcon 9 was developed, 70 times in nine years. Finally, the Falcon heavy rocket was developed. If Spacex does not develop iteration, it may not be on the day until now.

• What is incremental development?

Each version of the software will add a user who can sense full features. That is, it is divided according to the new function.

For example, real estate companies develop a 10 building cell. If you use incremental development mode, the first iteration of the company is to deliver a first floor, the second iteration delivery 2, ... Each iteration is completed a complete building. Instead, the first iteration drunk the foundation of 10 buildings, the second iteration builds the skeleton of each building, the third iteration has the roof ...

• How to generate agility?

Although agile development divides software development into multiple iterations, it also requires that each iteration is a complete software development cycle, and a formal process management must be performed according to the methodology of software engineering.

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• What is the benefits of agile development?

• Early delivery

  The first benefit of agile development is early delivery, which greatly reduces costs. Still the real estate company in the above section as an example, if in accordance with the traditional "waterfall development model", first dig 10 buildings, then cover the skeleton, then set the roof, each stage is waiting until the beginning of the previous stage, may need Two years can deliver 10 buildings at one time. That is, if pre-sale is not considered, the project must wait two years later. Agile development is six months later, and it will be delivered every two months later. Therefore, it can be rewarded by 10% for half a year, and there will be cash flow every month, and the funds are greatly reduced.

• reduce risk

  The second benefit of agile development is that timely understanding market demand, reducing the risk of product not applicable. Please think about it, which is a small loss: 10 buildings have been made, and they will find that they can not sell, or they have made the first building, they will find that they can not sell, thus improving or suspending 9 buildings. ?

1.4 What is continuous integration

Continuous Integration, CI) refers to, frequent (one day) integrate code to the backbone

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Continuous integration of components

An automatic build process, from detecting code, compiling construction, run test, result record, test statistics, etc., no need to manually intervene.

A code repository that requires version control software to ensure the maintenanceability of the code, as a material library of the build process, usually using SVN or GIT.

A continuous integration server, Jenkins is a continuous integration server that configures simple and easy to use.

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1.5 Continuous Integration Benefits

1. Reduce the risk, due to continuous integration constantly build, compile and test, you can find problems very early, so the cost of repair is less;
2. Continue inspection of system health and reduce the issuance of issuance of risks;
3, reduce repetitive work;
4, continuous deployment, provide deployment unit packages;
5, continuous delivery of available versions;
6, enhance team confidence;

2 Jenkins installation configuration

2.1 Jenkins Introduction

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Jenkins is a popular open source continuous integration tool, which is widely used in project development, automated construction, testing, and deployment. Official website: http://jenkins-ci.org/.

Jenkins characteristics:

• Open source Java language development continuous integration tools support continuous integration, continuous deployment.
• Easy to install the deployment configuration: You can easily configure the Web interface configuration through YUM installation, or download the WAR package and quickly implement the installation deployment through the Docker container.
• Message Notification and Test Report: Integrated RSS / E-mail Generates JUnit / Testng Test Reports by e-mail through the E-mail notification by e-mail through the RSS release building.
• Distributed Build: Support Jenkins can build / test multiple computers.
• Document recognition: Jenkins can track which JAR, which is built, which is built, which version of JAR, etc.
• Rich plug-in support: Support extended plugins, you can develop tools that are suitable for your team, such as Git, SVN, Maven, Docker, etc.

Jenkins installation and continuous integrated environment configuration

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1) First, the developer is submitted every day, submitted to the Git warehouse

2), then Jenkins as a continuous integration tool, use the Git tool to the Git warehouse to pull the code to the integrated server, then with JDK, Maven software to complete code compilation, code test and review, test, packaging and other work, during this process One step error, re-execute the entire process again.

3) Finally, Jenkins sends the generated JAR or WAR package to the test server or the manufacture of servers, testers or users can access applications.

2.2 Jenkins environment building

2.2.1 Jenkins installation configuration

Mirria in the information can be imported:

Server Username: root Password: ITCAST

 Jenkins User Name: ITCAST Password: ITCAST

1 installation with YUM

Join Jenkins installation source:

sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo –no-check-certificate

sudo rpm –import https://pkg.jenkins.io/redhat-stable/jenkins.io.key

Execute the yum command to install:

yum -y install jenkins

2 use rpm installation package mode

Jenkins installation package download address

wget https://pkg.jenkins.io/redhat-stable/jenkins-2.190.1-1.1.noarch.rpm

Perform the installation:

rpm -ivh jenkins-2.190.1-1.1.noarch.rpm

Configuration:

Modify the configuration file:

vi /etc/sysconfig/jenkins

Modify content:

      # Modify to the corresponding target user, use root
   $JENKINS_USER="root"
       #        
   JENKINS_PORT="16060"

Directory permission:

   chown -R root:root /var/lib/jenkins
   chown -R root:root /var/cache/jenkins
   chown -R root:root /var/log/jenkins

Restart:

 systemctl restart jenkins

If the startup fails with the error message:

   Starting Jenkins bash: /usr/bin/java: No such file or directory

JAVA environment to create a soft link:

   ln -s /usr/local/jdk/bin/java /usr/bin/java

1. Management background initialization settings

http://192.168.200.100:16060/

Management need to enter a password to view at the following location:

  cat /var/lib/jenkins/secrets/initialAdminPassword

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By default settings, the recommended plug-ins are installed on

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This step is to wait for a long time, after the installation is complete, create an administrator user:

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Configure access Address:

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After configuration is complete, it will restart, after management background you can see:

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2.2.2 Jenkins plugin installation

Before you implement continuous integration, the need to ensure a successful installation the following plug-ins.

• Maven Integration plugin: Maven integration management plug-ins.
• Docker plugin: Docker integrated plug-ins.
• GitLab Plugin: GitLab integrated plug-ins.
• Publish Over SSH: remote file publishing plug-ins.
• SSH: remote script execution plug-ins.

installation method:

1. Enter the [System Management] - [Plug-in Manager]
2. Click the tab [optional plug]

In the search box plug-in filter Name

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3. Check the plug-in, click on can be installed directly.

Note that if the button is not installed, you need to change the configuration

In the Advanced Configuration plug-in installation, upgrade the site to modify the connection: http: //updates.jenkins.io/update-center.json save

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2.2.3 Git installation configuration

1. yum installation

  yum -y install git

1. Source Package installed using

• Installation dependencies

yum -y install curl-devel expat-devel gettext-devel openssl-devel zlib-devel
yum -y install gcc perl-ExtUtils-MakeMaker

 - If there is an old version installed before, do uninstall, no installation is ignored

yum remove git

 Download source package

cd /usr/local
wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-1.8.3.1.tar.gz
tar -xvf git-1.8.3.1.tar.gz

 You can also install additional versions, address: https://mirrors.edge.kernel.org/pub/software/scm/git/git/git/git/

 - Compilation and installation

cd git-1.8.3.1
make prefix=/usr/local/git all
make prefix=/usr/local/git install
echo “export PATH=$PATH:/usr/local/git/bin” >> /etc/bashrc
source /etc/bashrc

 1. Check the git version

[root@localhost jenkins]# git version
git version 1.8.3.1

 #### 2.2.4 Maven installation configuration

 Download the installation package

 Download address: https://maven.apache.org/download.cgi

 Unzip the installation package

cd /usr/local
unzip -o apache-maven-3.3.9.zip

 Configure

 Environment variable configuration

vi /etc/profile

 Increase: 

export MAVEN_HOME=/usr/local/maven/apache-maven-3.3.9
export PATH= P A T H : PATH: PATH:MAVEN_HOME/bin

 If permissions are not enough, you need to add permissions for the current directory.

chmod 777 /usr/local/maven/apache-maven-3.3.9/bin/mvn

 Modify the mirror warehouse configuration:

vi /usr/local/maven/apache-maven-3.3.9/conf/settings.xml

 Need to package this unit's warehouse to the server (not going to download it automatically)

 Then specify the warehouse configuration after the upload

![image-20201119201436737](img/image-20201119201436737.png)

 #### 2.2.5 Docker installation configuration

 Update package version

yum -y update

 Uninstall old version

yum -y remove docker docker-common docker-selinux docker-engine

 Install software dependencies

yum install -y yum-utils device-mapper-persistent-data lvm2

 Set Yum source to Alibaba Cloud

sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

 View Docker version after installation

docker -v

 start up 

 Set the boot start:

systemctl enable docker

 Start Docker

systemctl start docker

 #### 2.2.6 Docker Registry private warehouse installation configuration

 For the configuration of the continuous integrated environment, Jenkins will release a large number of micro-services, interact with multiple machines, can use the save and export function of the Docker image to achieve SSH implementation, but this interaction is cumbersome, the stability is poor, and it is inconvenient to manage, here we Implemented by building Docker's private repository, this is a bit similar to the Git warehouse, centrally unified management resources, draws or updates by the client.

 1 Download the latest registry image

docker pull registry:latest

 2 Start Registry image service

docker run -d -p 5000:5000 --name registry -v /usr/local/docker/registry:/var/lib/registry registry:latest

 Map 5000 port; -V is to associate the mirror data volume in the Registry and the local files, easy to manage and maintain data within the Registry.

 3 View Warehouse Resources

 Access address: http://192.168.200.100: 5000 / v2 / _catalog

 4 Start normal, you can see the return:

{“repositories”:[]}

 There is currently no upload mirror, showing empty data.

 5 If the upload is successful, you can see the data:
![image-20201119201557930](img/image-20201119201557930.png)

 6 Configure the Docker client

 Use in the normal production environment, to configure HTTPS services, ensure security, internal development, or test integrated local area network environment, can be used in a simple way, not safe control.

 7 First make sure the machine continuously integrated environment has installed the Docker client, then do the following modifications:

vi /lib/systemd/system/docker.service

 8 Modified content:

ExecStart=/usr/bin/dockerd --insecure-registry 192.168.200.100:5000

 Point to the service IP and port installed in the installation of Registry.

 Restart to take effect:

systemctl daemon-reolad
systemctl restart docker.service

 ## 3 Continuous Integrated Production Practice Configuration

 ### 3.1 Jenkins Tool Configuration

   1. Enter [System Management] -> [Global Tool Configuration]

![image-20201119201637583](img/image-20201119201637583.png)

     2.MAVEN configuration global settings

![image-20201119201714171](img/image-20201119201714171.png)

     3. Specify JDK configuration

![image-20201119201735035](img/image-20201119201735035.png)

     4. Specify the maven directory

![image-20201119201750695](img/image-20201119201750695.png)

       5. Specify a docker directory

![image-20201119201809905](img/image-20201119201809905.png)

 If you don't know the Docker's installation directory, you can use the `whereis docker` command to view the Docker installation directory

 1. Set a remote application service host

 Add credentials:

![image-20201119194008211](img/image-20201119194008211.png)

 Add a credential, enter the username and password save

![image-20201119194040413](img/image-20201119194040413.png)

 Enter [System Management] - [System Settings]

![image-20201119194111231](img/image-20201119194111231.png)

 Enter the host name and login information, click [Check Connections] to verify, if success, "Successful Connection" will be displayed.

![image-20201119194133496](img/image-20201119194133496.png)

 ### 3.2 Environment Preparation

 #### 3.2.1 mysql deployment

 You can deploy mysql to 192.168.200.130 on this server

 Pull the mirror:

docker pull mysql:5.7

 Create a container

docker run -di --name=mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root mysql:5.7

Use the local tool test to import the SQL scripts in the first chapter, import the SQL scripts required for XXL-JOB

 #### 3.2.2 XXL-JOB-Admin Deployment

 (1) Modify the Application.properties file in XXL-Job-Admin, modify the port number 8888, the database connection points to 130 this server

web

server.port=8888
server.servlet.context-path=/xxl-job-admin

actuator

management.server.servlet.context-path=/actuator
management.health.mail.enabled=false

resources

spring.mvc.servlet.load-on-startup=0
spring.mvc.static-path-pattern=/static/**
spring.resources.static-locations=classpath:/static/

freemarker

spring.freemarker.templateLoaderPath=classpath:/templates/
spring.freemarker.suffix=.ftl
spring.freemarker.charset=UTF-8
spring.freemarker.request-context-attribute=request
spring.freemarker.settings.number_format=0.##########

mybatis

mybatis.mapper-locations=classpath:/mybatis-mapper/*Mapper.xml
#mybatis.type-aliases-package=com.xxl.job.admin.core.model

xxl-job, datasource

spring.datasource.url=jdbc:mysql://192.168.200.130:3306/xxl_job?Unicode=true&characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

datasource-pool

spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.minimum-idle=10
spring.datasource.hikari.maximum-pool-size=30
spring.datasource.hikari.auto-commit=true
spring.datasource.hikari.idle-timeout=30000
spring.datasource.hikari.pool-name=HikariCP
spring.datasource.hikari.max-lifetime=900000
spring.datasource.hikari.connection-timeout=10000
spring.datasource.hikari.connection-test-query=SELECT 1

xxl-job, email

spring.mail.host=smtp.qq.com
spring.mail.port=25
[email protected]
spring.mail.password=xxx
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory

xxl-job, access token

xxl.job.accessToken=

xxl-job, i18n (default is zh_CN, and you can choose “zh_CN”, “zh_TC” and “en”)

xxl.job.i18n=zh_CN

xxl-job, triggerpool max size

xxl.job.triggerpool.fast.max=200
xxl.job.triggerpool.slow.max=100

xxl-job, log retention days

xxl.job.logretentiondays=30

     (2) Execute the package command, upload the generated JAR file to the 130 server, placed in the XXL-JOB directory of the root directory (not created)

![image-20201119194249039](img/image-20201119194249039.png)

 (3) Create a dockerfile file in the XXL-Job directory, the content is as follows

FROM java:8u111
COPY xxl-job-admin-2.2.0-SNAPSHOT.jar /app.jar
CMD java -jar /app.jar
EXPOSE 8888

 Execute the build mirror command:

docker build -t xxl-job-admin:2.2.0 .

![image-20201119194319430](img/image-20201119194319430.png)

 (4) Creating a container

docker run -di --name=xxl-job-admin -p 8888:8888 xxl-job-admin:2.2.0

 (5) Access

![image-20201119194352335](img/image-20201119194352335.png)

 #### 3.2.3 SEATA deployment

 (1) Take the mirror

docker pull seataio/seata-server:1.3.0

 (2) Creating a container

docker run --name seata --restart=always -p 8091:8091 -e SEATA_IP=192.168.200.130 -e SEATA_PORT=8091 -d seataio/seata-server:1.3.0

 ### 3.3 Multi-environment switching

 (1) Modify the POM file of the Heima-Leadnews parent project, modify the Profiles section

dev ```

• profiles label for the profile ID. Here we set up three environments, dev, test and pord. By activeByDefault label, it is activated by default dev environment
• Which labelsseata.addressCustom, referring to the seata service address, to make a variable for different environments

At the same time the need for changes to the seata engineering, modification file.conf files, connect seata address is:${seata.address}

The following code:

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(2) add configuration properties file to heima-leadnews-admin project as an example

Modify maven_dev.properties development environment

profiles.name=dev

 # kafka address
kafka.servers=192.168.200.130:9092
 #nacos address
nacos.server=192.168.200.130:8848

 # Database connection configuration information
datasource.url=jdbc:mysql://192.168.200.130:3306/leadnews_admin?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
datasource.username=root
datasource.password=root

 #es Configuration Information
elasticsearch.host=192.168.200.130
elasticsearch.port=9200

 # Image Access IP
fdfs.url: http://192.168.200.130/

 #xxljob connection configuration information
xxljob.admin.addresses=http://192.168.200.130:8888/xxl-job-admin
xxljob.admin.appname=leadnews-admin-executor
xxljob.admin.port=9999

Modify maven_prod.properties Build Environment

profiles.name=prod

 # kafka address
kafka.servers=192.168.200.130:9092
 #nacos address
nacos.server=192.168.200.130:8848

 # Database connection configuration information
datasource.url=jdbc:mysql://52.82.20.5:33066/leadnews_admin?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
datasource.username=root
datasource.password=qwe123zxcasd

 #es Configuration Information
elasticsearch.host=192.168.200.130
elasticsearch.port=9200

 # Image Access IP
fdfs.url: http://192.168.200.130/

 #xxljob connection configuration information
xxljob.admin.addresses=http://192.168.200.130:8888/xxl-job-admin
xxljob.admin.appname=leadnews-admin-executor
xxljob.admin.port=9999

Modify application.yml following documents, the address of the variable to a variable, read from the properties file

server:
  port: 9001
spring:
  application:
    name: leadnews-admin
  kafka:
    bootstrap-servers: ${kafka.servers}
    consumer:
      group-id: ${spring.application.name}-kafka-group
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
  cloud:
    nacos:
      discovery:
        server-addr: ${nacos.server}
    alibaba:
      seata:
        tx-service-group: ${spring.application.name}_tx_group
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: ${datasource.url}
    username: ${datasource.username}
    password: ${datasource.password}
 # Set the XML file location corresponding to the Mapper interface, if you have a custom method in the Mapper interface, you need to make this configuration
mybatis-plus:
  mapper-locations: classpath*:mapper/*.xml
     # Set the alias package scanpath, can give the class registration alias through this property
  type-aliases-package: com.heima.model.admin.pojos

 # Image Access IP
fdfs.url: ${fdfs.url}
xxljob:
  admin:
    addresses: ${xxljob.admin.addresses}
  executor:
    appname: ${xxljob.admin.appname}
    port: ${xxljob.admin.port}
 # Cancel the health checkup of ElastSearch
management:
  health:
    elasticsearch:
      enabled: false
 # Custom ElasticSearch connection configuration
elasticsearch:
  host: ${elasticsearch.host}
  port: ${elasticsearch.port}

Other micro-service configuration information, please refer to the contents of a folder, one by one modification

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After all environment configured, you can use the command maven package

If you usemvn packageDev environment is loaded by default, you can usemvn package -P prod Specified environment package

3.4 Service Integration Docker Configuration

After dockerfile way to create a container for each service used to build micro mirror, you need to add docker relevant configuration in each micro-services

(1) ModifyEach micro-servicesThe pom file, add plug-ins dockerfile

<properties>
    <docker.image>docker_storage</docker.image>
</properties>
<build>
    <finalName>heima-leadnews-admin</finalName>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>com.spotify</groupId>
            <artifactId>dockerfile-maven-plugin</artifactId>
            <version>1.3.6</version>
            <configuration>
                <repository>${docker.image}/${project.artifactId}</repository>
                <buildArgs>
                    <JAR_FILE>target/${project.build.finalName}.jar</JAR_FILE>
                </buildArgs>
            </configuration>
        </plugin>
    </plugins>
</build>

(2) create Dockerfile file in the root directory of each micro-services, as follows:

# Set the Java version
FROM java:8
 # Specify the storage volume, any information written to / TMP writes will not be recorded to the container storage layer
VOLUME /tmp
 #     j JAR package
ARG JAR_FILE
COPY ${JAR_FILE} app.jar
 # Set the JVM running parameters, here is limited to memory size, reduce overhead
ENV JAVA_OPTS="\
-server \
-Xms256m \
-Xmx512m \
-XX:MetaspaceSize=256m \
-XX:MaxMetaspaceSize=512m"
 #    , execute the Java run command
ENTRYPOINT java ${JAVA_OPTS}  -jar /app.jar

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3.5 Foundation Dependent Package Configuration

You need to go to Install on the local repository before the microcontroller is running, so the first step should be pulled from git to pull the code and install the foundation dependency part into the warehouse.

(1) New creation of Item, named Heima-Leadnews

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(2) Configure the current heima-leadnews

• Description item

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• Source management:

Select Git, enter the git warehouse address (prerequisites, you need to upload the code to the Gitee warehouse), and finally enter the GetEe username and password.

If you do not configure Credentials, you can choose to add, then enter your username password.

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• In whichTriggerandBuild environmentNot set yet
• set upConstructConfigure

chooseInvoke top-level Maven targets

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Maven version: Maven configured in Jenkins

Target: Enter maven commandclean install -Dmaven.test.skip=true Skip test installation

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(3) Start the project

You can see this item on the home page after the creation is complete.

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Startup Project: Click the project you just created, then build now

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You can view the scheduled progress on the left side:

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After entering, you can view the build log information.

In the process of constructing, you will continue to enter log information. If the error will also prompt the error message

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Jenkins will pull the code from the git repository, then execute the maven's install command, install the code to the local warehouse.

In the end, if it is Success, it is successful.

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3.6 micro service packaging configuration

(1) New Item, take heima-leadnews-admin micro-service as an example

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(2) Configuration

• Overview

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• Source management

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• Construct

Configure Maven

Execute the maven command:clean install -Dmaven.test.skip=true -P prod dockerfile:build -f heima-leadnews-admin/pom.xml

-Dmaven.test.skip = true skip test

-P Prod Specifies the environment to generate an environment

Dockerfile: Build Starts the Dockerfile Plugin Build Container

-f heima-leadnews-admin / pom.xml Specifies the file that needs to be built (must be a POM)

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Execute the shell command

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if [ -n  "$(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )" ]
 then
   #    
 docker rm -f $(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )
fi
   #    
docker image prune -f 
   #   docker service
docker run -d --net=host  --name heima-$JOB_NAME docker_storage/heima-$JOB_NAME

It is not only a simple start service, we have to consider that each construction will generate a mirror, so try to clean it first, then start the service.

Docker has five network connection modes, because we are not all services that use Docker build, and the middleware service is deployed on the host machine. Here we use Host mode, such a Docker container and host services are interoperability.

• Bridge mode

Use commands: -net = bridge, this is the default setting of the Dokcer network, creates a separate network namespace for the container, and the container has a separate network stack such as a separate NIC, which is the default mode.

• Host mode

Use the command: -net = host, directly using the network namespace of the container host, that is, there is no separate network environment. It uses the IP and port of the host.

• NONE mode

Command: -net = none, create a standalone network namespace for the container, in which DOKCER does not make any network configuration for the container. We need to add a network card to the container, configure IP.

• Container mode

Command: -net = container: name_or_id, similar to the Host mode, this mode is to specify an existing container to share the IP and port of the container.

• Custom mode

The new features after the Docker 1.9 version allows containers to use third-party networks to implement or create a separate Bridge network, providing network isolation capabilities.

If it is over, it's configured, save it.

(3) Start the project build Now

• First pull the code from git
• Compile package
• Mirror
• Create a container
• Delete excess mirror

Can be viewed from the server

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The container has also been created

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You can test the service interface using the Postman test

3.7 Build other micro services

You can refer to the Admin microcate to create additional micro-services, each project may have different Maven build commands, please configure according to actual requirements

• Heima-Leadnews-Admin-Gateway Microser Configuration:

Maven command: clean install -dmaven.test.skip = true dockerfile: build -f heima-leadnews-admin-gateway / pom.xml

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• HeiMA-Leadnews-User Micro Services Configuration:

Maven command: clean install -dmaven.test.skip = true dockerfile: build -f heima-leadnews-user / pom.xml

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After all project build completed, started the ADMIN front-end project locally, modify the gateway address in Configs:192.168.200.100, Effect test

3.8 Deploying Front End Project

(1) Install nginx

The official website downloads nginx: http://nginx.org/, you can also use the installation package in the information. Version: nginx-1.18.0

Installation dependence

• Need to install GCC environment

yum install gcc-c++

• Third-party development kit.

• PCRE (Perl Compatible Regular Expressions) is a Perl library, including Perl compatible regular expressions. Nginx's HTTP module uses PCRE to resolve regular expressions, so you need to install the PCRe library on Linux.

  yum install -y pcre pcre-devel
  

  Note: PCRE-Devel is a secondary development library developed using PCRE. Nginx also needs this library.

• The Zlib library provides many ways to compress and decompress, NGINX uses ZLIB to Gzip's content of the HTTP package, so you need to install the ZLIB library on Linux.

  yum install -y zlib zlib-devel
  

• OpenSSL is a powerful secure sleeve layer cryptocatical library, including primary password algorithms, commonly used keys and certificate package management functions and SSL protocols, and provides a wealth of applications for testing or other purposes. Nginx
  Not only supports the HTTP protocol, but also supports HTTPS (ie, transmitting HTTP on the SSL protocol), so you need to install the OpenSSL library in Linux.

  yum install -y openssl openssl-devel
  

Nginx installation

Step 1: Upload NGINX source package nginx-1.18.0.tar.gz to Linux system

Step 2: Unzip

tar zxvf nginx-1.18.0.tar.gz

Step 3: Enter the nginx-1.18.0 directory Use the configure command to create a Makefile file.

./configure \
--prefix=/usr/local/nginx \
--pid-path=/var/run/nginx/nginx.pid \
--lock-path=/var/lock/nginx.lock \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--with-http_gzip_static_module \
--http-client-body-temp-path=/var/temp/nginx/client \
--http-proxy-temp-path=/var/temp/nginx/proxy \
--http-fastcgi-temp-path=/var/temp/nginx/fastcgi \
--http-uwsgi-temp-path=/var/temp/nginx/uwsgi \
--http-scgi-temp-path=/var/temp/nginx/scgi

You can see the Makefile file after execution

Step 4: Compilation

make

Step 5: Installation

make install

Step 6: Start

Note: Before starting NGINX, the temporary file directory is specified as / var / temp / nginx / client, you need to create this under / VAR
content

mkdir /var/temp/nginx/client -p

Enter the sbin directory under the NGINX directory

cd /usr/local/ngiux/sbin

Enter the command to start Nginx

./nginx

View the process after startup

ps aux|grep nginx

(2) Upload NGINX front-end project

Modify configuring config \ index.js, gateway address pointing to 100 servers

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Packaging admin front end

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Find the root of the project, generate a Dist folder, then compress

Upload the DIST compression package after the compression to the server, copy to the Linux root directory to create Workspace / Admin (centered)

Unzip the current compression package

unzip -o dist.zip

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(3) Configure Nginx

Open Linux directory: / usr / local / nginx / conf

Edit the nginx.conf file, replace it as follows:

user  root;
worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;


    upstream  heima-admin-gateway{
        server localhost:6001;
    }

    server {
	listen 80;
	server_name localhost;

	location / {
	    alias /root/workspace/admin/dist/;
	    index index.html ;
	    allow all;
	}
	location ~/service_6001/(.*) {
	    proxy_pass http://heima-admin-gateway/$1;
	    proxy_set_header HOST $host;
	    proxy_pass_request_body on;
	    proxy_pass_request_headers on;
	    proxy_set_header X-Real-IP $remote_addr;
	    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	}
	
     }

}

Restart Nginx

Go to / usr / local / nginx / sbin directory, execute command

./nginx -s reload

(4) Effect

Enter: http://192.168.200.100/ accessible system

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3.9 Deployment Services to Remote Servers

Released by remote deployment, you need to use Docker's Registry Warehouse Service.

(1) Create Item

There is no difference before before

(2) Configuration

• Select Parameterization:

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  Set the address and port of private warehouse: 192.168.200.100: 5000

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• Construct

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  Execute Execute Shell

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image_tag=$docker_registry/docker_storage/heima-$JOB_NAME
 echo '================ Docker image cleaning =================
if [ -n  "$(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )" ]
 then
   #    
 docker rm -f $(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )
fi
   #    
docker image prune -f 

 # Create TAG
docker tag docker_storage/heima-$JOB_NAME $image_tag
 echo '================ Docker mirror push =================
 # Push mirror
docker push $image_tag
# Delete Tag
docker rmi $image_tag
 echo '================ Docker tag cleaning =================

Perform scripts on remote servers

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Echo '================       = =================
docker pull $docker_registry/docker_storage/heima-$JOB_NAME

 Echo '================ Delete Cleanup container mirror =================
if [ -n  "$(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )" ]
 then
   #    
 docker rm -f $(docker ps -a -f  name=heima-$JOB_NAME  --format '{{.ID}}' )
fi
   #    
docker image prune -f 

 echo '=============== Start container =================
docker run -d   --net=host --name heima-$JOB_NAME $docker_registry/docker_storage/heima-$JOB_NAME

(3) Construction

Use parameter build, select the previous parameters

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If you can't PULL mirror on the remote server, you need to set it on the remote server, configure Docker trust private warehouse address.

Modify daemon.json

vi /etc/docker/daemon.json

Add the following, save exit.

{"insecure-registries":["192.168.200.100:5000"]} 

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Restart the Docker effective

systemctl restart docker

rebuild

3.10 Build trigger configuration

• Trigger remote build
• Trigger after other projects (BuildAther Projects Are Build)
• Timerby Build Periodically
• Polling SCM (Poll SCM)

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(1) Trigger remote construction

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Trigger build URL: http://192.168.200.100:16060/job/leadnews-admin/build?token=88888888

(2) Configure the project that needs to trigger

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(3) Build Periodically

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Timed strings from left to right, respectively: minute day and month

Example of a timed expression

Built once every 30 minutes: h represents H / 30 * * * * 10:02 10:32

Built once every 2 hours: h h / 2 * * *

3 times a day, 12 o'clock, one day, 3 times: (Separated in the middle of multiple points) 0 8, 12, 22 * ​​* *

Built once at 12 o'clock every day, H 12 * * *

Built once a day at 18 o'clock in the afternoon, h 18 * * *

Every 10 minutes H (0-29) / 10 * * * * in the first half hour of each hour

Every two hours, 9:00 am to 5 pm every working day (maybe it is 10:38 am, at 12:38 pm, 2:38 pm, afternoon
4:38) H H(9-16)/2 * * 1-5

(4) Polling SCM (Poll SCM)

Polling SCM is a change in code when scanning the local code warehouse is changed, and if the code is changed, it triggers project build.

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Jenkins will schedule the code of the entire project, increase the overhead of the system, not recommended.