Jenkin.md

Jenkins Tutorial

---

UserName: Liang PWD : 9--------9

1. Jenkin User Management

Manage User -> Create User for Developer or Admin role-based plugin -> Can not show on the download list

2. Blue Ocean Plugin

Quite easy step to combine Jenkins and GitHub with the default navigation to create the hook.

Things need to be remembered, i) it will generate the personal access token on the Github website Setting -> Developer settings -> Personal access token

ii) hard to find where to config that new pull request comes then build, so use Scan Repository Triggers 1 mins to work around. Scan Repository Now

3. This big image is three containers

DB	Jenkin	Maven/Tomcat
5432	8080	8080

Shell file is executed on the Maven Tomcat container, Then, no need to expose 8080(Tomcat) to external, http://localhost:8080 is just runned on the internal container

4. Jenkins Mail Configuration

	1. E-mail Notification 
	this one can be used to test the configuration is successful or not.

	2. Jenkins Location
	this one should be fullfilled the admin mail address.(must)

	3. Extended E-mail Notification
	this one is cnfigurated for Jenkins mail because you choose extended mail on the blue ocean
	pipeline job.

	you need to open qq.mail smtp mail service.
	that means use qq mail server as your Jenkins sender mail address.
	the following the pwd from qq server.
	bswqpxncxgjibcdg
	adapznkpecnzbcbi

5. Jenkinfile

Jenkins file is configured for Jenkins, If the branch include the Jenkinsfile, then Jenkins can automatically scan this branch to build based on the piple line.

So this file can be auto generated by Blue Ocean(not cover everything) or hand write.

Blue Ocean will auto scan the Jenkinfile from your branch.

In order to success or fail job to receive the email, I need to add post for the Jenkins. But unfortunately blue ocean seems no API to add based on the writting time.

The confusing is the setting, anyway google is fine.

6. maven:3-alpine

maven:3-alpine need to be downloaded pre-requsitely because of avoiding downloading taking too much time with internet-issue and make Jenkins down. There is one Test need to be tested when back to NZ.

• Need to Test One Case on yml

7. Comman to Test

1. Mac ip
ifconfig | grep inet

nslookup localhost

2. to see one port among Mac 
lsop -i tcp:8080

3. lsof -i tcp:8080   -> you can know the pid, but you may dont know what is the pid doing
ps -ef | grep pid  
-> you can know what the pid is doing

ps -ef | grep pid | grep -v grep 
-> grep -v grep: eliminate the result contains grep character

ps -ef | grep spring-boot:run | grep -v grep | awk '{print $2}' 
-> awk read the one row info and print the second column info

shell how to arrange one variable ps -ef | grep spring-boot:run | grep -v grep | awk '{print $2}'

put the above command into the character PID=``
PID=$()