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DEVOPS技术实践_19：Pipeline的多参数json调用
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在上一篇学习了把参数写进Json文件，然后通过去Json文件，调用参数的方法
1. 三元运算符介绍
调用的方法是通过一个三元运算符实现的
gender = prop.GENDER? prop.GENDER.trim() : ""
is_marry = prop.IS_MARRY? prop.IS_MARRY.trim() : false
这种写法就是Java中三元运算符的写法，prop.GENDER?表示判断这个变量是否存在，如果存在我们就prop.GENDER.trim(), 如果不存在，我们设置默认值为空字符串。上面函的数trim()，就是去除变量值的前后的多余空格，这个写法还是很严谨，我们不可能保证用户就不一定带着多余空格进来。其实在groovy语法中，还有简写版的三元运算符：
GENDER = prop.GENDER?: "default"
上面意思还是一样，只不过是更加符合groovy的风格，意思性别字段存在吗，如果存在就是里面的值，如果不存在，就设置default这个值。这个缺点就是无法直接trim()，去除前后空格。
下面学习使用map方式传递参数
2. 写一个module.groovy文件
[root@node1 ~]# mkdir /root/.jenkins/moodlegroovy
[root@node1 ~]# vi /root/.jenkins/moodlegroovy/model.groovy
def getUserInfo(args) {
def name = args.name
def age = args.age
def phone = args.phone
def address = args.address
def email = args.email
def gender = args.gender
def is_marry = args.is_marry // she or he
def binge = (gender == "male")? "he" : "she"
// if is marry
def marry = (is_marry == true)? "is marry" : "is not marry yet"
def userInfo = """
${name} come from ${address}, ${binge} is ${age} old. ${binge}'s phone number is
${phone}, or you can contact ${binge} via ${email}, ${binge} ${marry}.
"""
println userInfo
}
return this;
在这里使用def重新定义了两个参数（bing和marry）
3. 重新写pipeline语法,在gitlab修改
import hudson.model.*;
pipeline{
agent any
environment {
INPUT_JSON = "/tmp/test.json"
}
stages{
stage("Hello Pipeline") {
steps {
script {
println "Hello Pipeline!"
println env.JOB_NAME
println env.BUILD_NUMBER
}
}
} stage("Init paramters in json") {
steps {
script { println "read josn input file"
json_file = INPUT_JSON? INPUT_JSON.trim() : ""
prop = readJSON file : json_file
name = prop.NAME? prop.NAME.trim() : ""
println "Name:" + name
age = prop.AGE? prop.AGE.trim() : ""
println "Age:" + age
phone = prop.PHONE_NUMBER? prop.PHONE_NUMBER.trim() : ""
println "Phone:" + phone
address = prop.ADDRESS? prop.ADDRESS.trim() : ""
println "Address:" + address
email = prop.EMAIL? prop.EMAIL.trim() : ""
println "Email:" + email
gender = prop.GENDER? prop.GENDER.trim() : ""
println "Gender:" + gender
is_marry = prop.IS_MARRY? prop.IS_MARRY.trim() : false
println "is_marry:" + is_marry
}
}
}
stage("call a method") {
steps {
script {
println "send the parameter as map type"
model_call = load env.JENKINS_HOME + "/moodlegroovy/model.groovy"
model_call.getUserInfo(name:name, age:age, phone:phone, address:address, email:email, gender:gender, is_marry:is_marry)
}
}
}
}}
点击构建
4. 构建结果
Started by user darren ning
Obtained pipeline.jenkinsfile from git http://192.168.132.132/root/pipeline-parameter-test.git
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on Jenkins in /root/.jenkins/workspace/pipeline_parameter_project
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Checkout SCM)
[Pipeline] checkout
No credentials specified
> git rev-parse --is-inside-work-tree # timeout=
Fetching changes from the remote Git repository
> git config remote.origin.url http://192.168.132.132/root/pipeline-parameter-test.git # timeout=10
Fetching upstream changes from http://192.168.132.132/root/pipeline-parameter-test.git
> git --version # timeout=
> git fetch --tags --progress http://192.168.132.132/root/pipeline-parameter-test.git +refs/heads/*:refs/remotes/origin/*
> git rev-parse refs/remotes/origin/master^{commit} # timeout=
> git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=
Checking out Revision edda078d67705019d7183dd7d1c4201003f682b1 (refs/remotes/origin/master)
> git config core.sparsecheckout # timeout=
> git checkout -f edda078d67705019d7183dd7d1c4201003f682b1
Commit message: "Update pipeline.jenkinsfile"
> git rev-list --no-walk 0f09c80389aa181c2066555209110a2afa041b53 # timeout=
[Pipeline] }
[Pipeline] // stage
[Pipeline] withEnv
[Pipeline] {
[Pipeline] withEnv
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Hello Pipeline)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
Hello Pipeline!
[Pipeline] echo
pipeline_parameter_project
[Pipeline] echo[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (Init paramters in json)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
read josn input file
[Pipeline] readJSON
[Pipeline] echo
Name:Lucy
[Pipeline] echo
Age:
[Pipeline] echo
Phone:
[Pipeline] echo
Address:Haidian Beijing
[Pipeline] echo
Email:lucy@demo.com
[Pipeline] echo
Gender:male
[Pipeline] echo
is_marry:false
[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (call a method)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
send the parameter as map type
[Pipeline] load
[Pipeline] { (/root/.jenkins/moodlegroovy/model.groovy)
[Pipeline] }
[Pipeline] // load
[Pipeline] echo Lucy come from Haidian Beijing, he is old. he's phone number is
, or you can contact he via lucy@demo.com, he is not marry yet.[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS
构建成功，也按照原有方式传递进来
总结，上面模块方法的时候参数就写了一个args, 调用方法的时候传了7个map对象进去。然后模块方法中每个变量前面都加上def, 加上之后模块中的变量都变成了局部变量。这样和已经存在内存中的stage里面的全局变量不会被覆盖和重写
5. 测试一
假如不适用三元运算符调用json文件的参数，但是依然把这个参数传递到model.groovy里
删掉：is_marry参数
import hudson.model.*;
pipeline{
agent any
environment {
INPUT_JSON = "/tmp/test.json"
}
stages{
stage("Hello Pipeline") {
steps {
script {
println "Hello Pipeline!"
println env.JOB_NAME
println env.BUILD_NUMBER
}
}
} stage("Init paramters in json") {
steps {
script { println "read josn input file"
json_file = INPUT_JSON? INPUT_JSON.trim() : ""
prop = readJSON file : json_file
name = prop.NAME? prop.NAME.trim() : ""
println "Name:" + name
age = prop.AGE? prop.AGE.trim() : ""
println "Age:" + age
phone = prop.PHONE_NUMBER? prop.PHONE_NUMBER.trim() : ""
println "Phone:" + phone
address = prop.ADDRESS? prop.ADDRESS.trim() : ""
println "Address:" + address
email = prop.EMAIL? prop.EMAIL.trim() : ""
println "Email:" + email
gender = prop.GENDER? prop.GENDER.trim() : ""
println "Gender:" + gender
}
}
}
stage("call a method") {
steps {
script {
println "send the parameter as map type"
model_call = load env.JENKINS_HOME + "/moodlegroovy/model.groovy"
model_call.getUserInfo(name:name, age:age, phone:phone, address:address, email:email, gender:gender, is_marry:is_marry)
}
}
}
}}
点击构建，则会报错，没有这个参数
6. 测试二
加上这个参数，但是不传递到model.groovy中
jenkinsfile文件
import hudson.model.*;
pipeline{
agent any
environment {
INPUT_JSON = "/tmp/test.json"
}
stages{
stage("Hello Pipeline") {
steps {
script {
println "Hello Pipeline!"
println env.JOB_NAME
println env.BUILD_NUMBER
}
}
} stage("Init paramters in json") {
steps {
script { println "read josn input file"
json_file = INPUT_JSON? INPUT_JSON.trim() : ""
prop = readJSON file : json_file
name = prop.NAME? prop.NAME.trim() : ""
println "Name:" + name
age = prop.AGE? prop.AGE.trim() : ""
println "Age:" + age
phone = prop.PHONE_NUMBER? prop.PHONE_NUMBER.trim() : ""
println "Phone:" + phone
address = prop.ADDRESS? prop.ADDRESS.trim() : ""
println "Address:" + address
email = prop.EMAIL? prop.EMAIL.trim() : ""
println "Email:" + email
gender = prop.GENDER? prop.GENDER.trim() : ""
println "Gender:" + gender
is_marry = prop.IS_MARRY? prop.IS_MARRY.trim() : false
println "is_marry:" + is_marry
}
}
}
stage("call a method") {
steps {
script {
println "send the parameter as map type"
model_call = load env.JENKINS_HOME + "/moodlegroovy/model.groovy"
model_call.getUserInfo(name:name, age:age, phone:phone, address:address,gender:gender, is_marry:is_marry)
}
}
}
}
}
在此构建，看构建结果
Started by user darren ning
Obtained pipeline.jenkinsfile from git http://192.168.132.132/root/pipeline-parameter-test.git
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on Jenkins in /root/.jenkins/workspace/pipeline_parameter_project
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Checkout SCM)
[Pipeline] checkout
No credentials specified
> git rev-parse --is-inside-work-tree # timeout=
Fetching changes from the remote Git repository
> git config remote.origin.url http://192.168.132.132/root/pipeline-parameter-test.git # timeout=10
Fetching upstream changes from http://192.168.132.132/root/pipeline-parameter-test.git
> git --version # timeout=
> git fetch --tags --progress http://192.168.132.132/root/pipeline-parameter-test.git +refs/heads/*:refs/remotes/origin/*
> git rev-parse refs/remotes/origin/master^{commit} # timeout=
> git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=
Checking out Revision 029b57783a597bb66636c932c6e45289317f6ce1 (refs/remotes/origin/master)
> git config core.sparsecheckout # timeout=
> git checkout -f 029b57783a597bb66636c932c6e45289317f6ce1
Commit message: "Update pipeline.jenkinsfile"
> git rev-list --no-walk 732222f86b3bb78bfba7833a3a5a3ad00a60950a # timeout=
[Pipeline] }
[Pipeline] // stage
[Pipeline] withEnv
[Pipeline] {
[Pipeline] withEnv
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Hello Pipeline)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
Hello Pipeline!
[Pipeline] echo
pipeline_parameter_project
[Pipeline] echo[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (Init paramters in json)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
read josn input file
[Pipeline] readJSON
[Pipeline] echo
Name:Lucy
[Pipeline] echo
Age:
[Pipeline] echo
Phone:
[Pipeline] echo
Address:Haidian Beijing
[Pipeline] echo
Email:lucy@demo.com
[Pipeline] echo
Gender:male
[Pipeline] echo
is_marry:false
[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (call a method)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
send the parameter as map type
[Pipeline] load
[Pipeline] { (/root/.jenkins/moodlegroovy/model.groovy)
[Pipeline] }
[Pipeline] // load
[Pipeline] echo Lucy come from Haidian Beijing, he is old. he's phone number is
, or you can contact he via null, he is not marry yet. #邮件的内容显示为null[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS
7. 总结参数的一个传递过程
- 把参数写进json文件
- 通过readJSON方法读取JSON文件内容
- 使用三元运算符把参数Pipeline中重新调用，变成Pipeline的全局变量
- 使用model_call加载model.groovy模块文件
- 使用model_call.getUserInfo括号后面的参数传递给model.groovy文件使用
- model.groovy文件获取参数，在使用args重新定义当下模块的变量，成为一个本模块可用的局部变量
- model.groovy文件调用参数，并做相应处理，返回
- Pipeline获得返回信息，形成一个完整的过程
参考文档：https://blog.csdn.net/u011541946/article/details/88956846，下面继续和作者学习
