Jenkins run command on remote machine linux

Looking forward to this page being available. I am trying to set up several slaves as windows services on one machine and then connecting them to a master on another windows server, and am getting nowhere with this. I can not find any documentation anywhere on what the process would be to do this.

I have configured and added slaves on the same machine as my master, but that's obviously not what I want. Any help please? Log onto the machine that you want to set up as a slave. Click on Manage Nodes and then click on New Node. Give it a name and choose Dumb Slave and click OK for future slaves you can just copy from existing.

Fill in the fields, leaving settings at their defaults, and click Save. Now that it is created, you can click on it in the list of nodes. It should show a page that tells you how to launch the slave.

Since you are already on the slave machine, you just need to click the Launch button. It will start up the slave under Java and will say it is connected if it all went well. Then you simply click on the File menu in that java window and choose Install as a Windows Service.

It should then set up the service and shut down the slave agent you had just launched. From there, you don't really have much to do besides send builds to it. Like I said, this has worked for me with most of my build configurations, so I guess this could be considered the basic setup. In some cases, there is more that needs to be done but I am still fumbling through those situations and have nothing positive to report yet.

Can I create slaves of different OSes. I have setup separate Hudson CIs for the same. I was thinking If I can merge them into a single hudson. Having set-up the slaves, you can assign them to a job by specifying their label in the 'Restrict where this project can be run' field of the project. So what you want is already possible. When I shut it down on the remote server I was able to connect without an error.

Hope this helps. The error actually starts when i click the "launch button" on starting it as slave on windows. Is it that the connection to port is not open on Ubuntu to connect from my windows machine. I found this page confusing. It's not clear that you are setting up a slave on the slave machine.

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I thought it was starting off by setting up slave information on a master node I think another commenter above implies he went down that route as well. The restriction that the slave can't have a jenkins job running seems restrictive. Is there any way around this restriction?

Jenkin run in my windows machine.When it comes to managing remote computers with PowerShell, you have essentially three options. An alternative is the Invoke-Command cmdlet, which allows you to run remote commands on multiple computers which is why it is called One-to-Many Remoting.

The third option is to use one of those cmdlets that offer a ComputerName parameter. To list those cmdlets, you can use this command:. In addition to the built-in cmdlets, quite a few PowerShell modules exist that support remote management. For instance, you can manage Active Directory from your workstation after installing the Active Directory module.

Whenever one of these options exists, I would avoid enabling PowerShell Remoting on the remote machine. Because PowerShell Remoting presents a security risk, it has to be enabled even within an Active Directory domain. You can also use Remoting on workgroup computers, but you will have to take care of a few extra configurations. In the latter case, you probably failed to provide admin credentials. However, this kind of encryption is vulnerable to man-in-the middle attacks. I will say more about this topic in a follow-up post.

Two ways exist to connect to remote computers with Invoke-Command. In the remainder of this article, I will focus on managing remote Windows machines that are Active Directory domain members. The output of the executed commands in the script block is automatically relayed to your local session. As with the Enter-PSSession cmdlet, you have to be an administrator on the remote machine. Otherwise, you will receive an Access denied error message.

If you are not logged on as domain administrator on your local machine, you have to provide sufficient credentials with the -Credential parameter. You can pass multiple computers to the -ComputerName parameter by separating their names with commas.

To run multiple commands, you can separate them with semicolons in the script block. However, a better option is to use the -FilePath parameter instead of the - ScriptBlock parameter, which allows you to execute an entire PowerShell script:. By default, PowerShell will send the script immediately to all computers if 32 or fewer computer names are passed.

If more than 32 computer names are passed, PowerShell will queue the surplus computers until the script completes in one of the first 32 PSSessions.The deployment is done by a parameterized build job, where the parameter is the version of the project that we want to deploy. Those commands will pull down a version of our code, unpack it, and run the rest of the install steps.

Now you can deploy your project or run any other remote scripts by running the build job and specifying a version number. I have tried using multiple commands separated by space and newline in Exec text area but its not working. Hey Anonymous…usually you need to separate multiple commands with a semicolon. For example cd foo; run. Try that out. Does anyone know why the connection is keep failing?

Exec commands should work, but transferring files will fail jenkins. Message [Auth fail]. Hi, Can anyone tell me how i can configure jenkins to setup a interactive shell script which at run will ask for deployment server password and the level for which it want to deploy.

Please suggest. Thanks in Advance. Casting around the web for a decent ssh plugin for jenkins and i stumbled across your blog. I hope you changed your private key! Next time, put at least a full black rectangle in a significant part. New to jenkins, could u some one please tell me how to configure Jenkin job to execute shell script which is present in SVN. I need help in transferring files from jenkins workspace to my dev server.

I have configure Publish over ssh plugin, also done the global settings configuration. Output of the build is success. But I cannot see any files into my dev-server. I can see tranfer file 22 s, but I can not see any file into that folder. I have installed Jenkins on my local, I have created my own EC2 instance, I can ssh into my instance and run some shell scripts to shut down my Wildfly server installed on my instance. Now, I want to using Jenkins, when I click build button, it will ssh into that instance and run these shell scripts for me.

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The output is expected the same as I run it after I ssh into the instance. My question is: what steps should I follow, after I login to my Jenkins local environment: localhost Create a New Item, which one?

Is there some plugin I can use? Where to put my shell scripts, will it run successfully? I want to run a script in multiple hosts which are not Jenkins slaves in parallel using SSH plugin. Hi, Using the Jenkins plugin SSH pubblisher I want transfer to the server only the set of files that are more recent than those prent on the server.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. February 25, 25 Comments.Jenkins features a Groovy script console which allows one to run arbitrary Groovy scripts within the Jenkins master runtime or in the runtime on agents. The Jenkins Script Console:. If any authorization strategy allows this permission to be granted to users other than Admins, then extreme care should be taken not to allow non-admins to use this.

Is a web-based Groovy shell into the Jenkins runtime. Groovy is a very powerful language which offers the ability to do practically anything Java can do including:. Offers no administrative controls to stop a User or Admin once they are able to execute the Script Console from affecting all parts of the Jenkins infrastructure.

Granting a normal Jenkins user Script Console Access is essentially the same as giving them Administrator rights within Jenkins. Can configure any Jenkins setting. It can disable security, reconfigure security, even open a backdoor on the host operating system completely outside of the Jenkins process. Due to the mission critical importance many organizations place on Jenkins in their infrastructure this point is especially important because it would allow an attacker to move laterally within infrastructure with little effort.

Is so powerful because it was originally intended as a debugging interface for Jenkins developers but has since grown into an interface used by Jenkins Admins to configure Jenkins and debug Jenkins runtime issues. Videos linked in this page demonstrate and discuss security warnings.

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Select any node to view the status page. In the menu on the left, a menu item is available to open a "Script Console" on that specific agent.

jenkins run command on remote machine linux

The following script is an example running a script on agents from the master Script Console. Also, Jenkins CLI offers the possibility to execute groovy scripts remotely using groovy command or execute groovy interactively via groovysh.

However, once again curl can be used to execute groovy scripts by making use of bash command substitution. In the following example somescript. You can submit a script without mouse. Jenkins has a shortcut key which enables to submit with keyboard. Jenkins World Mastering the Jenkins Script Console - 44 minutes - sample usage and security discussion.

To expand your ability to write scripts in the script console, the following references are recommended:. Groovy is also relevant for other features of Jenkins like Pipelines and shared pipeline librariesthe Groovy Pluginthe Job DSL pluginand many other plugins which utilize Groovy see section [Plugins-enabling-Groovy-usage]. Due to the nature of Groovy scripts accessing Jenkins source code directly, Script Console scripts are easily out of date from the Jenkins source code.

It is possible to run a script and get exceptions because public methods and interfaces in Jenkins core or Jenkins plugins have changed.

Jenkins Pipeline Tutorial - Continuous Delivery Pipeline Using Jenkins - DevOps Training - Edureka

Keep this in mind when trying out examples. Jenkins is easily started from a local development machine via the following command:. It is not recommended to try Script Console examples in a production Jenkins instance. Add a new label to slaves meeting a condition — This script shows how to alter the slave nodes' label membership. In this case we create a new label if the existing label contains a string.

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It has been tested from the Jenkins command window. Add notification plugin to every job — This script will add the Notification Plugin to every job. Allow broken build claiming on every jobs — With the following simple script, you can activate the option on every jobs of your server in just one go.

Batch-Update Mercurial branch that is checked out — Updates for multiple jobs which branch will be checked out from Hg. Change publish over SSH configuration.

Change SCMTrigger for each project to disable during the night and the week-end — This script lets you easily change all jobs running every minutes so that it gets disabled between and and on Saturday and Sunday.Jenkins is a self-contained Java-based program, ready to run out-of-the-box, with packages for Windows, Mac OS X and other Unix-like operating systems.

As an extensible automation server, Jenkins can be used as a simple CI server or turned into the continuous delivery hub for any project. When you are working on a number of projects which get built on a regular basis or want to run multiple jobs or might need several different environments to test your builds, then a single Jenkins server cannot simply handle the entire load.

On Handling Arbitrary Arguments

Jenkins supports the master-slave architecture, i. It is also known as Jenkins Distributed Builds. We can also run the same test case on different environments in parallel using Jenkins Distributed Builds, which in turn helps you to achieve the desired results quickly using this distributed approach. All of the job results are collected and combined on the master node for monitoring. A slave is a Java executable that runs on a remote machine. The characteristics of the slave are :.

For next steps, we will login into our Ubuntu slave machine and perform the below tasks to configure the SSH with the Jenkins master. We are done with the configurations on the Ubuntu slave machine, now we will configure our Jenkins master by remoting into it :. We are done with the changes in master node as well. Now, lets open the Jenkins master UI and complete the setup :. We will now add another slave having Windows OS which can be used to build.

NET applications and some other windows specific purposes :. To sum up, we have successfully spun up two AWS instances Ubuntu and Windowsconfigured them as Jenkins Slaves and finally tested them separately by running a test job. Thanks for reading the article, let me know what you think of this and feel free to contact in case anything bothers.

The private IP of EC2 will change after reboot. Like Like. Private IP addresses do not change in EC2 with a simple restart. This behaviour cannot be modified. The public IP address can change under certain circumstances. You are commenting using your WordPress.

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Skip to content Home About Contact. LinkedIn Instagram Facebook. Posted on March 14, April 1, by Vishnu.PowerShell lets you run commands on a remote machine. When you run a remote command, the output has to travel over a network, and therefore the command output object is serialised int xml to make this possible, and then deserialized on the local machine. WinRM is not a powershell thing only, it is a more general tool that is used by the OS to route traffic to and from other application between machines.

Therefore any incoming traffic is tagged with the same name of the recieving application. These applications are registered with WinRM as endpoints.

Hence powershell also has to register itself with WinRM. So before you can start remoting, you first have to set up a listener for your ps, this can be done by running the following command:. Note: You can run winrm as a standalone command in ps just like regedit, and cmd : winrm just run this on its own.

Once you have run the enable-psremoting command, you should now be ready to do a remote connection, which is done like this:. Therefore if you want to run the get-service and get-process command on the local machine at the same time, then do:.

jenkins run command on remote machine linux

This lets you run the -scriptblock simultaneously across several machines as shown further above. Some commands e. If you have lots of commands you want run on several remote machines, then it can become tedious constantly declaring them in the command line. Instead a better approach is to create reusable persistant connection session instead. This persistant session can be created using:. This object can then be fed into the -SessionOption parameter in order to establish the connection.

However the problem with using them is that each time you use these commands, you may have to enter additional info such as passwords and port numbers.

This can become repetitive and tedious. The above command creates 3 objects, one for each machine. If you check the syntax section with the enter-pssession help pages, you will find that we are using enter-pssession in a different mode. You can exit a session like this:. However the reusable persistant session itself will not be deleted.

You have to use the remove-session command to do that:. A really cool think you can do is kind of create your alias commands, which only run on the remote machine.Many times we need to work with remote Linux systems. We login to the remote host, perform work and exit that session.

jenkins run command on remote machine linux

Can we perform all these actions from local machine? SSH allows us to execute command on remote machine without logging into that machine.

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If you observe above command, it is similar to regular SSH command with minor difference. We have appended command to be executed highlighted in red color. Using this technique, we can execute multiple commands using single SSH session. We just need to separate commands with semicolon. Sometimes we need to execute command with elevated privileges, in that case we can use it with sudo.

Remote execution is not only limited to the commands; we can even execute script over SSH. We just have to provide absolute path of local script to SSH command. If we split commands into multiple lines, then variable expansion will not work. Let us see it with simple example:. To resolve this issue, we need to use -c option of shell.

By default, SSH will ask for password authentication each time. This is enforced for security reasons. However, sometimes it is annoying. To overcome this, we can use public-private key authentication mechanism. NOTE: Never share your private key with anyone. Now we can execute command over SSH without entering password.

Let us verify this. Thought public-private key authentication makes our life easier, it is not perfect. Its major downside is; we cannot automate it, because user interaction is required first time. There is no need to get panic, this is not end of world.

To overcome above limitation, we can use sshpass utility. It provides non-interactive way to authenticate SSH session. This section discusses various ways of it.