Run a set of linux commands using Jenkinsfile in Jenkins - bash

Question

I had to create a jenkins job to automate certain tasks that will perform certain operations like Updating the public site, Changing public version to latest public release, Updating Software on public site and Restarting Server these include certain operations such as copy files to a tmp folder, log in to a an on-prem server, go to the folder and unzip the file etc.
I have created the jenkinsfile as follows:
pipeline {
options {
skipDefaultCheckout()
timestamps()
}
parameters {
string(name: 'filename', defaultValue: 'abc', description: 'Enter the file name that needs to be copied')
string(database: 'database', defaultValue: 'abc', description: 'Enter the database that needs to be created')
choice(name: 'Run', choices: '', description: 'Data migration')
}
agent {
node { label 'aws && build && linux && ubuntu' }
}
triggers {
pollSCM('H/5 * * * *')
}
stages {
stage('Clean & Clone') {
steps {
cleanWs()
checkout scm
}
}
stage('Updating the public site'){
steps{
sh "scp ./${filename}.zip <user>#<server name>:/tmp"
sh "ssh <user>#<server name>"
sh "cp ./tmp/${filename}.zip ./projects/xyz/xyz-site/"
sh "cd ./projects/xyz/xyz-site/ "
sh "unzip ./${filename}.zip"
sh "cp -R ./${filename}/* ./"
}
stage('Changing public version to latest public release') {
steps {
sh "scp ./${filename}.sql.gz <user>#<server name>:/tmp"
sh "ssh <user>#<server name>"
sh "mysql -u root -p<PASSWORD>"
sh "show databases;"
sh "create database ${params.database};"
sh "GRANT ALL PRIVILEGES ON <newdb>.* TO 'ixxyz'#'localhost' WITH GRANT OPTION;"
sh "exit;"
sh "zcat tmp/${filename}.sql.gz | mysql -u root -p<PASSWORD> <newdb>"
sh "db.default.url="jdbc:mysql://localhost:3306/<newdb>""
sh "ps aux|grep monitor.sh|awk '{print "kill "$2}' |bash"
}
}
stage('Updating Software on public site') {
steps {
sh "scp <user>#<server>:/tmp/abc<version>_empty_h2.zip"
sh "ssh <user>#<server name>"
sh "su <user>"
sh "mv tmp/<version>_empty_h2.zip ./xyz/projects/xyz"
sh "cd xyz/projects/xyz"
sh "cp latest/conf/local.conf <version>_empty_h2/conf/"
}
}
stage('Restarting Server') {
steps {
sh "rm latest/RUNNING_PID"
sh "bash reload.sh"
sh "nohup bash monitor.sh &"
}
}
}
}
Is there a way I can dynamically obtain the zip filename in the root folder? I used ${filename}.zip , but it doesn't seem to work.
Also, is there a better way to perform these operations using jenkins? Any help is much appreciated.

Answer 1

You could write all your steps in one shell script for each stage and execute under one stage.
Regarding filename.zipeither you can take this as a parameter and pass this value to your stages. OR You can also use find command as a shell command or shell script to find .zip files in a current directory. find <dir> -iname \*.zip find . -iname \*.zip .
Example:
pipeline {
options {
skipDefaultCheckout()
timestamps()
}
parameters {
string(name: 'filename', defaultValue: 'abc', description: 'Enter the file name that needs to be copied')
choice(name: 'Run', choices: '', description: 'Data migration')
}
stage('Updating the public site'){
steps{
sh "scp ./${params.filename}.zip <user>#<server name>:/tmp"
...
}
}
}
For executing script at a certain location based on your question , you could use dir with path where your scripts are placed.
OR you can also give the path directly sh label: 'execute script', script:"C:\\Data\\build.sh"
stage('Your stage name'){
steps{
script {
// Give path where your scripts are placed
dir ("C:\\Data") {
sh label: 'execute script', script:"build.sh <Your Arguments> "
...
}
}
}
}