Below is my pipeline snippet and I am trying to assign RSTATE variable a value at run time. This value is basically stored in a text file but we need to grep and cut it. So a shell command output should be its value.
pipeline
{
agent any
environment
{
RSTATE = 'R4C'
ISO_REV = 'TA'
BuildSource = '18'
}
stages
{
stage('get Rstate')
{
echo env.RSTATE
}
}
}
I am trying to assign RSTATE value like:
RSTATE = sh ( script: 'grep RSTATE /proj/MM/scm/com/iv_build/mm18_1/rstate/next_rstate.txt
|cut -d "=" -f2', returnStdout: true).trim()
But this is not working.
I also tried to run a shell script but that also not works. Only hard coded value is working. Please suggest.
I tested and worksm you need to validate if your script return the value you want.
pipeline
{
agent any
environment
{
RSTATE = 'R4C'
ISO_REV = 'TA'
BuildSource = '18'
}
stages
{
stage('get Rstate')
{
steps {
script {
def RSTATE2 = sh ( script: 'echo \${RSTATE}', returnStdout: true).trim()
echo env.RSTATE
echo RSTATE2
}
}
}
}
}
Related
I have written a shell script in a groovy function which should return the the output (in a single line) as abcd-def-chart but, I am getting the output as shown below in 2 different lines:
abcd-def
-chart
My groovy code:
String getChartName(Map configuration = [:]) {
if (configuration.chartName != null) {
return configuration.chartName
}
chartName = ""
if (configuration.buildSystem == 'maven') {
chartName = getMavenProjectName() + "-chart"
}
echo "chartName: ${chartName}"
return chartName
}
String getMavenProjectName() {
echo "inside getMavenProjectName +++++++"
def mavenChartName = sh returnStdout:true, script: '''
#!/bin/bash
GIT_LOG=$(env -i git config --get remote.origin.url)
basename "$GIT_LOG" .git; '''
echo "mavenChartName: ${mavenChartName}"
return mavenChartName
}
Here is my script to get telnet status
#!/bin/bash
IP=$1;
PORT=$2;
exec 3> /dev/tcp/$IP/$PORT
if [ $? -eq 0 ];then echo "PortOpen";else echo "PortClosed";fi
I am calling the func in my pipeline stage
def telnetTest (namespace, release, port) {
script {
// Getting Service IP
def serviceIP = sh (
returnStdout: true,
script: "kubectl get svc -n ${namespace} | grep ${release} | awk '{print \$4}'"
)
echo "ServiceIP: ${serviceIP}"
// Checking Service IP is Exsisting ?
if (serviceIP.equals('')) {
echo "ERROR: Getting service IP failed"
sh 'exit 1'
}
// Telnet Testing
sh "chmod +x telnetPort.sh"
def telnetTesting = sh (
returnStdout: true,
script: "./telnetPort.sh ${serviceIP} ${port}"
)
echo "${telnetTesting}"
}
}
Pipeline Stage
Pipeline {
environment {
NAMESPACE = default
RELEASE = test
PORT = 9040
}
stages {
stage ('Telnet Test') {
steps {
script {
telnetTest ("${NAMESPACE}", "${RELEASE}", "${PORT}")
}
}
}
}
}
Now its taking only first arg passing to the script
Any one let me know why & where i am going wrong
In your function, you write port, and in the defining line, you wrote PORT.
Hey I'm trying to make changes to the environment variable GIT_BRANCH and parse the right side of the /, i know this can be achieved with cut like this: $(echo ${env.GIT_BRANCH} | cut -d \"/\" -f 2 )
Thing is, cannot make it work in Jenkins pipelines, error: bad substitution
pipeline {
agent any
stages {
stage('Build') {
steps {
sh "docker build -t jpq/jpq:test ."
}
}
stage('Test') {
steps {
sh "docker run jpq/jpq:test python3 tests.py"
}
}
stage('Push') {
steps {
sh '''#!/bin/bash
BRANCH=\$(echo \${env.GIT_BRANCH} | cut -d \"/\" -f 2 )
echo ${BRANCH}
docker tag jpq/jpq:test jpq/jpq:${BRANCH}
docker push jpq/jpq:test
'''
}
}
// stage('Deploy') {
// steps {
// }
// }
}
}
How can I correctly generate the BRANCH variable and pass it to the docker tag?
This should work:
stage('Push') {
steps {
sh '''#!/bin/bash
#printenv
BRANCH=$(echo ${GIT_BRANCH} | cut -d "/" -f2)
echo "Branch: ${BRANCH}"
'''
}
}
Note: To see what all environment variables are available to the shell block, you may use printenv.
I've created a simple pipeline which is attempting to run a script and then I'll do something else with the output, however the script (CheckTagsDates.sh) never finishes according to Jenkins. If I SSH into the Jenkins slave node, su as the jenkins user, navigate to the correct workspace folder, I can execute the command successfully.
pipeline {
agent {label 'agent'}
stages {
stage('Check for releases in past 24hr') {
steps{
sh 'chmod +x CheckTagsDates.sh'
script {
def CheckTagsDates = sh(script: './CheckTagsDates.sh', returnStdout: true)
echo "${CheckTagsDates}"
}
}
}
}
}
Here is the contents of the CheckTagsDates.sh file
#!/bin/bash
while read line
do
array[ $i ]="$line"
(( i++ ))
done < <( curl -L -s 'https://registry.hub.docker.com/v2/repositories/library/centos/tags'|jq -r '."results"[] | "\(.name)&\(.last_updated)"')
for i in "${array[#]}"
do
echo $i | cut -d '&' -f 1
echo $i | cut -d '&' -f 2
done
Here is the output from the script in the console
latest
2020-01-18T00:42:35.531397Z
centos8.1.1911
2020-01-18T00:42:33.410905Z
centos8
2020-01-18T00:42:29.783497Z
8.1.1911
2020-01-18T00:42:19.111164Z
8
2020-01-18T00:42:16.802842Z
centos7.7.1908
2019-11-12T00:42:46.131268Z
centos7
2019-11-12T00:42:41.619579Z
7.7.1908
2019-11-12T00:42:34.744446Z
7
2019-11-12T00:42:24.00689Z
centos7.6.1810
2019-07-02T14:42:37.943412Z
How I told you in a comment, I think that is a wrong use of the echo instruction for string interpolation.
Jenkins Pipeline uses rules identical to Groovy for string interpolation. Groovy’s String interpolation support can be confusing to many newcomers to the language. While Groovy supports declaring a string with either single quotes, or double quotes, for example:
def singlyQuoted = 'Hello'
def doublyQuoted = "World"
Only the latter string will support the dollar-sign ($) based string interpolation, for example:
def username = 'Jenkins'
echo 'Hello Mr. ${username}'
echo "I said, Hello Mr. ${username}"
Would result in:
Hello Mr. ${username}
I said, Hello Mr. Jenkins
Understanding how to use string interpolation is vital for using some of Pipeline’s more advanced features.
Source: https://jenkins.io/doc/book/pipeline/jenkinsfile/#string-interpolation
As a workaround for this case, I would suggest you to do the parsing of the json content in Groovy, instead of shell, and limit the script to only retrieving the json.
pipeline {
agent {label 'agent'}
stages {
stage('Check for releases in past 24hr') {
steps{
script {
def TagsDates = sh(script: "curl -L -s 'https://registry.hub.docker.com/v2/repositories/library/centos/tags'", returnStdout: true).trim()
TagsDates = readJSON(text: TagsDates)
TagsDates.result.each {
echo("${it.name}")
echo("${it.last_updated}")
}
}
}
}
}
}
In Jenkins, I want to get a user input and pass to a shell script for further use.
I tried to set as environment variable, but the shell script failed to get the latest value and the old value is echo.
pipeline {
agent none
environment{
myVar='something_default'
}
stages {
stage('First stage') {
agent none
steps{
echo "update myVar by user input"
script {
test = input message: 'Hello',
ok: 'Proceed?',
parameters: [
string(name: 'input', defaultValue: 'update it!', description: '')
]
myVar = "${test['input']}"
}
echo "${myVar}" // value is updated
}
}
stage('stage 2') {
agent any
steps{
echo "${myVar}" // try to see can myVar pass between stage and it output expected value
sh("./someShell.sh") // the script just contain a echo e.g. echo "myVar is ${myVar}"
// it echo the old value. i.e.something_default
}
}
}
}
The environment variables that we set in the pipeline Script will be accessible only within the script. So, even if you declare your variable as global, it will not work inside a shell script.
Only option I can think off is, pass as it as argument to the shell script
sh("./someShell.sh ${myVar}")
EDIT:
Updated Answer based on OP's query on Shell script for parsing input
LINE="[fristPara:100, secondPaa:abc]"
LINE=$(echo $LINE | sed 's/\[//g')
LINE=$(echo $LINE | sed 's/\]//g')
while read -d, -r pair; do
IFS=':' read -r key val <<<"$pair"
echo "$key = $val"
done <<<"$LINE,
"
You need to pass the variables between your stages as environment variables, e.g. like this:
stage("As user for input") {
steps {
env.DO_SOMETING = input (...)
env.MY_VAR = ...
}
}
stage("Do something") {
when { environment name: 'DO_SOMETING', value: 'yes' }
steps {
echo "DO_SOMETING has the value ${env.DO_SOMETHING}"
echo "MY_VAR has the value ${env.MY_VAR}"
}
}
You have to declare the variable on a global scope so that both places refer to the same instance.
def myVal
pipeline { ... }