Adds a new exec provider for executing PowerShell commands. The issue is, while first two are correctly executed under "user", third command is executed in. Puppet provides a built-in exec type that is capable of executing commands. I have a script that really only needs to be run one time on a server, i. Contribute to tarunmunjal/puppetlabs-powershell development by creating an account on GitHub. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands. Their exit codes convey whether to proceed with running the main command. Local user accounts are often desirable for isolating applications requiring unique permissions. Onlyif and unless are somewhat similar as they serve as conditional operators in Puppet which means the command runs based on the output of what is in these parameters. }Puppet: Conditional exec using unless-option. 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. However, the problem with the exec is that it is not idempotent. Iteration features are implemented as functions that accept blocks of code ( lambdas ). The logic looks a little confusing but basically, the way I understand unless is that if the command returns a 0, then the whole exec wont be run. 2 install on Ubuntu 18. I do not account that a bug, however, as (1) it's probably more useful behavior, and (2) it's consistent with the example in the docs. Problem with "if" is that it expects the file on the puppet server not on the client. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n $ {lxcname} >/dev/null. November 8, 2023. onlyif => "/sbin/swapon -s | /bin/grep file > /dev/null" - This step works only if there is no swap in place, but if the swap file is already created, then the step fails. Puppet: Exec from class when Exec from another class is successful. But I think the correct way is to use creates: The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Unless you are sharing with the world, you don’t need most. In conjunction with Facter, which makes details of a machine available as variables, this lets you write Puppet code that flexibly accommodates different platforms, operating systems. The third example is a (semi-)common mistake made by people coming from certain other tools. By default, Puppet returns the first value it finds, but it can also continue searching and merge all the values together. Puppet File resource runs despite Exec unless. check that the node can communicate with the puppetmaster on the relevant port. How to set environment variables in Ubuntu OS using Puppet. I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. When using cmd. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Try again and this time show the failure. 1. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands. Share. I will show how these work in the example below. This module is particularly helpful if you need to run PowerShell commands but don't know the details about how PowerShell is executed, because you can run PowerShell. Puppet provides a built-in exec type that is capable of executing commands. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. The Win32 APIs define exit. Executables, zips and or tar. Modules. John. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. Onlyif and unless are somewhat similar as they serve as conditional operators in Puppet which means the command runs based on the output of what is in these parameters. The setuid/setgid/sticky digit is also a. Puppet strange behaviour of execs. 1. exec command unless directory exists in puppet. Puppet supports a few different ways of implementing conditional logic: ; if statements, ; unless statements, ; case statements, and ; selectors. Other built-in types. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. And, since that file will no longer exist after the first reboot, subsequent puppet runs would NOT deploy these 2 scripts unless the host was rebuilt. d/pgsql. There is a module in puppet already installed by default called:puppetlabs-stdlib and within this module a defined type called file_line which does the trick :) Here is my case scenario under the. I want to check if the file exists in the client. exe /c C:/test. Puppet can take an existing PowerShell Module and build a Puppet module out of it. jar', } Should this be part of the manifest which could look like this?Each value in the Puppet language has a data type, like “string. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. Alternative 1: create a bash script: ugly Exec resources and temp files. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Teams. The cis_security_hardening module has a parameter enforce for each rule. If I try creating it as my process user, I get permission denied. John. With it, you can apply different resources or parameter values depending on certain facts about the node, for example, the operating system, or the memory size. exe /c C:/test. 0. Find can exclude Named Pipes:-type c File is of type c: b block (buffered) special c character (unbuffered) special d directory p named. Teams. Puppet: how to remove a directory and everything in it. This means that if a file is currently a directory, setting ensure to anything but directory or present will cause Puppet to skip managing the resource and log either a notice or. In this blog post, we'll make it simple with definitions and examples to explain the basics of platform engineering vs. To run an exec task, use the task command, specifying the command to be executed. 0 and above would look like this: exec { "apt-update": command => "/usr/bin/apt-get update" } Exec["apt-update"] -> Package <| |> Every time a package command is executed, the dependency (in our case 'apt-update') will be triggered fist. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. Puppet - How to purge a directory. puppet agent -td --evaltrace --profile > agent_debug. How can I tell Puppet to stop a service on shutdown without keeping it running? 0. Sequence of Execs in Puppet. 4. The problem is Exec['apt-update'] is always performed (i. Possibly, then, this is the test you want to perform:This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. Maybe. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. "exec / onlyif" and "exec / unless" are kind of measures-of-last-resort in the Puppet world (now, having said that, I must admit that I'm completely guilty of using it myself on occasion :p ). d/x exists then /bin/true is run (successfully). This is a textbook case where you should write the test first, and the code after. If invoked by a. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Exec type's onlyif and unless in --noop documented. Sep 13, 2012 at 15:51. , for example, the Exec resource being. Puppet Exec with no command attribute. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. See “Case Matching” below for details on how Puppet matches different kinds of cases. onlyif and unless in --noop documented. So in. 6. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. You need to put the rabbitmqctl list_vhosts | grep sensu in a separate task and register the result to use it in the when clause. Puppet: Exec from class when Exec from another class is successful. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. Sorted by: 0. Valid options: String. 6. I do not account that a bug, however, as (1) it's probably more useful behavior, and (2) it's consistent with the example in the docs. Platform Engineering. All modules; Supported modules; Modules with tasks; Contribute. password is not getting changed to the default password and also chage. We will focus on the language terminology, syntax and. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. I am trying to use code like this: exec { 'example':. Do you have reason to think that there's something wrong. Learn to use Bolt to execute commands on remote systems, distribute and execute scripts, and run Puppet tasks or task plans on remote systems that don’t have Puppet installed. Puppet uses the same exec resource type on both *nix and Windows systems, and there are a few Windows-specific best practices and tips to keep in mind. local service ntpd start How can I make Puppet run this command once on all servers? I want to Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. Connect and share knowledge within a single location that is structured and easy to search. 17 also improves the way typed class parameters are checked. How do I use puppet to run the command, get the file names and then loop the 3 file names and set permission accordingly? puppet; puppet-enterprise. Because the same concept underlies these different forms of conditional logic available in Puppet, we'll only cover the if statement in the tasks for this quest. exec { 'foobar': command => 'foo | bar', } However, there are occasions where foo fails. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. Puppet provides a built-in exec type that is capable of executing commands. Only supported on Windows Server 2003 and above, and Windows 7 and above. See provider/exec. It am trying to add 'replica' user to my postgres server though puppet so i can use it in my master-salve cluster. 1. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. All modules; Supported modules; Modules with tasks; Contribute. indicates that the shell tried to execute '3' as a command, and, unsurprisingly, did not find it. Unless you are sharing with the world, you don’t need most. exe and specifying a file path in the command line, be sure to use backslashes. . Puppet have a defined resource fail if a variable is set to undef. notify is set on the user, and refreshonly is set on the exec. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. 0. It is. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. 1. Puppet: How to execute a Exec resource if another Exec resource failed. 2 or later for the pip3 provider, what is an alternative approach to installing Python packages by hand via the 'pip3' command? If I use the 'exec' approach, how do I control the package from being reinstalled all the time? (i. It doesn't even cause clutter in the logs! See also. Puppet exec unless doesn't appear to work how I expect. It's important to note that the notify resource type is not idempotent. If Puppet is managing the user that an exec should run as. You can also set variables within the manifest, which can change the. 1 Answer. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. command => '/path/to/script. Publish a module; Topics. I am wondering whether it is possible to have Puppet only stop and disable a Windows service if it exists. 3 puppet exec returned 1 instead of [0] 0 Puppet strange behaviour of execs. There are a few important parameters to use when writing an exec resource with PowerShell. 0. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. The second one unzips it. But it when I try it, it is. Puppet: Conditional exec using unless-option. rb in the Puppet source code. Puppet attempts to execute directories from /etc/init. This allows you to do more complex task operations, such as. The Puppet exec will not run unless the "unless" command exits with status 0. Puppet File resource runs despite Exec unless. Puppet’s behavior when declaring or assigning a class with both styles is undefined, and will sometimes work and sometimes cause compilation failures. One way is to use custom fact but that gets a bit too complicated as it requires ruby knowledge and custom facts execute on each and every server. Usage. 6. See full list on puppet. 0. silent way to import registry file via puppet module. 1. Puppet noop When Executable does not exist yet. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Load 7 more related questions Show fewer. d/ Prevents Puppet from considering. execute update-grub, which would look for avaliable kernels and would add related configs to the menu. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. The db has already been created in the vm, and if it's already been cloned, the count returned from the query gives me something other than a ' 0 ', and the grep because. The default behavior is to report the exit code only for the last command in the pipeline. Adds a new exec provider for executing PowerShell commands. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. 0 or later must be installed on the machine from which you are running task commands. I am struggling with how to pass a puppet variable through to powershell. Puppet tasks are single, ad hoc actions that you can run on target machines in your infrastructure, allowing you to make as-needed changes to remote systems. –Note that Puppet issue 8083 should not affect you in the case that the Application-Server feature is installed, but it is unclear (to a non-initiate in Powershell) what the exit code of that 'unless' command will be in the alternative case. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. command => '/path/to/script. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. If Puppet is managing the user that an exec should. Puppet exec unless doesn't appear to work how I expect. 0. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. 0. 2. In addition I need to run only if it detects an older version of the and is not on a certain server and then install the new version. Puppet 7. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. 1. Let's assume that you can write a find command to list all of your files that you want deleted. Your fact could be something like this: #!/bin/bash if [ -f /my/file. Puppet seems to be behaving exactly as I would expect, with the only potentially surprising thing being that even the 'posix' provider runs the 'unless' and 'onlyif' commands via the shell. Do you have reason to think that there's something wrong with. Purging resources in Puppet requires two conditions: a type which supports listing instances (at least one provider has a self. What I am looking for is a way to make the exec command dependend on the checksums of arbitrary other files:Adds a new exec provider for executing PowerShell commands. The strange thing is that when I reboot my machine and re-run puppet apply, it reruns the creation of this directory on every reboot. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Adds a new exec provider for executing PowerShell commands. Since Puppet uses the same exec resource type on both *nix and Windows systems, there are a few Windows-specific caveats to keep in mind. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. Puppet File resource runs despite Exec unless. Sequence of Execs in Puppet. fail when a file exist in puppet. Puppet seems to be behaving exactly as I would expect, with the only potentially surprising thing being that even the 'posix' provider runs the 'unless' and 'onlyif' commands via the shell. On Windows, most exit codes should be integers between 0 and 2147483647. PUP-11199. But Puppet is quite hard to learn. Thanks!. You can create relationships between resources or groups of resources using the -> and ~> operators. Since Puppet 2. Puppet exec - fails to execute command as user. 0\powershell. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. PUP-11199. I'm really confused about this, it seems like puppet can. The Puppet “exec” resource allows users to run commands and scripts on nodes. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. Try again and this time show the failure. Adds a new exec provider for executing PowerShell commands. Puppet: Conditional exec using unless-option. Since moving to Puppet 5. . If you can modify the Puppet manifest(s) you can simply add the following definition for setting a default path attribute for all Exec resources to /bin: Exec { path => "/bin" } err: Failed to apply catalog: Parameter unless failed on Exec[mkdir_autostart]: '[ -d /home/pi/. Then, you can install the Nuget package via the package resource in Puppet. Using onlyif allows you to use the return value of one or more commands as your. NORTHWEST LIBRARY FEDERATION. 4. exe utility (note the space after and lack thereof before the = character): exec { "install_service" : command => "$ {Sys32}sc. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. 0. 6. Default: Undefined. Create this file only if it does not exist, or Start this windows service unless it’s already running. 1. "Unless" statements work like reversed if statements. For information on all core types, including supported types in the puppet-agent package, see. 2. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. If you choose to execute PowerShell scripts using the default Puppet exec provider on Windows, you must specify the remotesigned execution policy as part of the powershell. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. As Forrest already said, it's not what puppet is designed for. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Puppet: Conditional exec using unless-option. = (assignment) Expand. |>). The 'creates', 'onlyif', and 'unless' parameters all provide mechanisms for Puppet to decide that an Exec resource is already in sync without running its (main) command. The 'onlyif' and 'unless' commands of an Exec are used in the process of determining whether the Exec is already in sync, therefore they must be run during a --noop Puppet run. Puppet has two main ways to declare classes: include-like and resource-like. Puppet strange behaviour of execs. Provides integrated testing tools and a command line interface to help you. This is where refreshonly backfires rather terribly. On Windows, most exit codes are integers between 0 and 2147483647. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. exe -NoProfile -NoLogo . So, in order to avoid this I am adding the refreshonly parameter as follows. txt 2>&1. An exec resource, which starts a powershell script, which starts a PowerShell process, which starts a CMD process, which runs a batch file (with an invalid path), which runs another batch file, which processes some kind of response file. supported. Doing some research, and looking at blog posts, I know that the structure of my code should be something along the lines of (I know it's not correct): exec {'function_name': # the script that downloads/installs/activates etc. When you use any of the four so-called metaparameters for relationships in Puppet - those being: require , before , subscribe & notify - you tell Puppet that you want the application. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. My first idea came in the lines of (within a class):One minor nitpick regarding Womble's answer: the puppet style guide recommends using single quotes unless you need double quotes for variable interpolation. Now that Puppet is installed and ready to run, it’s time to create a Puppet configuration. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. The script remaps several legacy user id's that conflict with local system users. It applies the resource on the left before the resource on the right. 1. Share. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. This means you. Googling unless ansible showed this document about when. supported Adds a new exec provider for executing PowerShell commands. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. 5. I don't think there's something built into Puppet. That's what the ticket is about. Modules. Problem with "if" is that it expects the file on the puppet server not on the client. 1. Autorequires: If Puppet is managing an exec’s cwd or the executable file used in an exec’s command, the exec resource will autorequire those files. 0. Adds a new exec provider for executing PowerShell commands. Puppet Exec resource to apply only when a File changes. exec { 'update hostname': command => 'hostname VM01', path => '/usr/bin:/usr/sbin/:/bin:/sbin', unless => '[ "$(hostname)" == "VM01" ]', } You need to. ##Limitations. The logoutput parameter just logs the output to the. 2. Learn more See the exec documentation for the command, unless, and onlyif. Puppet exec unless doesn't appear to work how I expect. powershell conditional IsNullorEmpty not working as planned. However, I only want to apply the 'netsh advfirewall reset' exec if firewall rules other than what I have specified in Hiera exist. puppet and I'm running into some issues. 0. e. If the query specified in the unless parameter returns one or. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed. Or even better, split the shells parts into separate exec resources with dependencies and unless parameters. e. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. The second one unzips it. Back to overview of wls_exec. Adding a / to the end of a file name isn't enough to tell puppet to. Puppet exec command runs in shell, but not via puppet. With it, you can apply different resources or parameter values depending on certain facts about the node, for example, the operating system, or the memory size. g. Hot Network QuestionsPuppet avoids destroying directories unless the force attribute is set to true. Sends an arbitrary message, specified as a string, to the agent run-time log. do, line 50) cannot accept an array of options. As a result, notifications are shown as a change on every Puppet run. So having Puppet do it automatically will help with that. EPP has two tags for Puppet code, optional tags for parameters and comments, and a way to escape tag delimiters. The exec resource from Puppet, the automation framework, is a mysterious beast. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. This can be used with bash on Linux, but with the PowerShell provider , it can run PowerShell on Windows and Linux nodes as well. Check your syntax by entering puppet parser validate c:\myfiles\file. If the agent can perform the requested action at all, then it does not need sudo in order to do it, as it would be running with privilege in the first place. Let's also assume that you're puppet module knows when do delete these files. Based on that documentation, a when statement was added: - name: add vhost sensu command: rabbitmqctl add_vhost /sensu when: rabbitmqctl list_vhosts | grep sensu. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. Unless you tell your exec not to run for some reason or another, it will always run. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. Resource default for the exec type A resource default statement set default attribute values for a given resource type. unless: A shell command that is run as a test to determine if the command should not run. So for your example, it would probably be better to extend the exec to add an unless or onlyif parameter, so the command only runs if the database doesn't already exist. For detailed information about built-in types, see the Resource type reference. puppet exec returned 1 instead of [0] 1. Modules that are supported by Puppet, Inc. exe /c echo "hello"'. 2. The command should only be run as a refresh mechanism for when a dependent object is changed. Conditional statement examples. You can use expressions almost anywhere a value is required. Teams. It looks like you're having Puppet execute a shell script to perform the installation. Detecting if windows service is already installed using puppet exec. 1. It is a limitation of the underlying system. Alternately, you can put the PowerShell code. Connect and share knowledge within a single location that is structured and easy to search. domain. If this parameter is set, then this exec will only run if the command has an exit code. 2. Expressions can be compounded with other expressions, and the entire combined expression resolves to a single value. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. Sometimes a simple creates isn't enough to determine if an exec should run or not. ##Limitations. This will not work because the Package resource type does not have an 'unless' parameter -- that's a feature specific to Exec resources. Puppet Exec resource to apply only when a File changes. We explore practical examples and best practices for handling procedural requirements when we look at the exec resource type in Chapter 5. Which it looks like it doesn't. Node examples. This means that if a file is currently a directory,. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands.