Puppet check if a nagios resource exists. The Forge is an online community of Puppet modules submitted by Puppet and community members. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. Adds a new exec provider for executing PowerShell commands. onlyif and unless in --noop documented. Note that the example uses the unless parameter to make the resource idempotent. Modules. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. Running Powershell command directly using Puppet exec resource. I am poorly familiar with the puppet language but would guess something like this to execute the jar file: exec { 'jar_execution': command => 'cmd. If this parameter is set, then this exec will only run if the command has an exit code. The issue isn't that the package doesn't install, but rather that apt automatically starts the. Puppet provides a built-in exec type that is capable of executing commands. If the resource that you want to apply conditionally does not have any built-in conditional checks that serve the purpose, then Puppet conditional statements such as if and case are the most likely options. Expressions are statements that resolve to values. But you really need something like an onlyif or unless or this is going to execute every 30 minutes and that breaks the idempotent rule we try and apply with Puppet code where things. Connect and share knowledge within a single location that is structured and easy to search. Yes, you'd put a script into your modules path under a facts. service ntpd stop ntpdate ntp3. The whole idea of adding this step is to check and execute the command- makeswap only if the swap is not in place. Load 7 more related questions Show fewer. Modules that are supported by Puppet, Inc. The Puppet “exec” resource allows users to run commands and scripts on nodes. <%= EXPRESSION %> — Inserts the value of a single expression. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). I have a requirement where one exec notifies another exec which notifies a defined resource type (which sets some variables and runs an internal exec). exe; Backslashes only. exec { 'update hostname': command => 'hostname VM01', path => '/usr/bin:/usr/sbin/:/bin:/sbin', unless => '[ "$(hostname)" == "VM01" ]', } You need to. Tim Gosley’s four decades in puppetry include a wide spectrum of projects. rb in the Puppet source code. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. If /etc/init. exec { "Change status and start-up of Win service": command => 'C:WindowsSystem32WindowsPowerShellv1. asked Apr 1, 2022 at 20:47. It looks like you're having Puppet execute a shell script to perform the installation. Learn more about TeamsIt's just not something you can do with vcsrepo unless you can override path (you can in exec). pp in the Puppet command prompt. To use sudo non-interactively, the invoking user needs a NOPASSWD: entry in sudoers %wheel ALL=(fred) NOPASSWD: /usr/bin/echo "hola dan" Then. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. exe -ExecutionPolicy ByPass -command "here any command on powershell ""} On Thursday, October 9, 2014 4:22:14 PM UTC-3, Paul Ponzeka. The CentOS/Puppet installation process should already have created a directory called /etc/puppet (If it hasn’t, create it with mkdir /etc/puppet ). code. Because the Exec requires the File to (conditionally) be applied first, its own unless parameter would not be evaluated in time to affect that, even if there were a way it could do. 0 on RHEL 6 and am doing package management via the exec resource. The only plausible source of such an issue in the code you presented is your Exec's unless command: unless => "`ps -eaf | grep service | grep -v grep | wc -l` -eq 3" When the command there is executed by the shell, it first executes unless: A shell command that is run as a test to determine if the command should not run. exec { 'Make sure frob is installed': command => 'apt-get install -y frob', unless => 'frob --version', } Ansible's command module has a "creates" option that looks for a file, but I don't. The logoutput parameter just logs the output to the. Maybe. 1. This seems to work just fine. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In the Puppet language, nearly everything is an expression, including. loki77. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. 1. Thanks!. 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. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. When using Puppet APIs to load file content and metadata, you can access files in the scripts/ directory of a module using the scripts file mount. The best solution would actually be to use something like Augeas to examine the file and modify as necessary. config/autostart ]' is not qualified and no path was specified. If exec command was successful and facter returns true then only it should execute, but following manifest executing individually without checking whether that exec. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. Since Puppet 2. Overtime dhcp package is upgraded, RPM returns the original permission and owner which leads to DHCP issues (foreman-proxy is unable to modify files). d/ Prevents Puppet from considering. Adds a new exec provider for executing PowerShell commands. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. The command should only be run as a refresh mechanism for when a dependent object is changed. Puppet have a defined resource fail if a variable is set to undef. 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 in Puppet without the module. escape. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. Puppet 3 is no longer supported, but we. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. Generally speaking, details of machines' current state on which Puppet is to base decisions about the contents of that machine's catalog must be communicated to the. 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. Topics. 0. As a result, notifications are shown as a change on every Puppet run. By setting the hiera value selinux::mode: 'enforcing', that will ensure SELinux is enabled (it will default to targeted mode on CentOS). This is a textbook case where you should write the test first, and the code after. Puppet: deploy file unless it exists. --Puppet::Type. Share. supported Adds a new exec provider for executing PowerShell commands. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. 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. 1. When evaluated, these tagged expressions can modify text in the template. Modules that are supported by Puppet, Inc. My notes on how to make it work for complex multi-exec configurations. Just. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. If executed as root, the lxc-info checks for the name among the root containers. Puppet does not support a shell provider for Windows, so if you want to execute shell built-ins (such as echo ), you must provide a complete cmd. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. Create exec resources with metadata to ensure it is idempotent. Windows puppet exec command file path. It is a limitation of the underlying system. Find can exclude Named Pipes:-type c File is of type c: b block (buffered) special c character (unbuffered) special d directory p named. 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. 1. But because a dependency failed, Exec['Y'] will be skipped during this transaction. Learn more about TeamsUnless puppet supports escaping somehow. Examples An if statement evaluates the given condition and, if the condition resolves to true, executes the given code. 1. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. 1. 0. 2 install on Ubuntu 18. 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. You can set different levels of permissions for different users or groups, allowing them to read, change, or even delete. Your best bet is to run the action as a script and set up the PATH inside the actual script. gz packages are copied to the remote systems during every puppet run, while these files where removed after installation and software has been. I can fix this manually. E. 2. It will package up all of its DSC resources and then wrap the Puppet Resource API around it so you can invoke it just like any other module. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Adds a new exec provider for executing PowerShell commands. puppet exec returned 1 instead of [0] 1. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n ${lxcname} >/dev/null. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Puppet should then run two commands only once. 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. 0. } @choover Unfortunately that won't work. ps1 script. h ), and the sub-processes it spawns. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. Iteration functions. Puppet Exec resource to apply only when a File changes. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. If Puppet is managing the user that an exec should run as. Puppet strange behaviour of execs. 3. The onlyif parameter is defined as. 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. Include-like behaviorAll groups and messages. The synchronization of an out-of-sync Exec resource involves only running the command given by its 'command' property, so that's the only part that --noop prevents. Execute installers from shared (samba) folder instead of copy it first to agent system does not solve the issue. Ensure directory tree exists. 5. 20. You can use the unless parameter to only execute the statement in certain states. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. The cis_security_hardening module has a parameter enforce for each rule. This example includes an elsif condition, and gives a warning if you try to include the ntp class on a virtual machine or on machine running macOS: 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. This can be used with bash on Linux, but with the PowerShell provider , it can run PowerShell on Windows and Linux nodes as well. You can read more about it here. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. puppet seems to execute the command in a way that means it never runs successfully. DevOps. The onlyif and unless. I can do something like: file { '/tmp/wehavepostfix': ensure => file, content => "foobar", require => Package ['postfix'], } However, this requires something like:With PE, run puppet task run exec command="df -h" --nodes neptune. TJL. Let’s take a look there: ls -la /etc/puppet. Puppet exec command runs in shell, but not via puppet. I will show how these work in the example below. how to ensure puppet exec run on every event triggered? 0. exe /s "$ {timezone}"", unless => "cmd. Setting the umask only has effect within the process that does it (see umask in sys/stat. Puppet supports a few different ways of implementing conditional logic: ; if statements, ; unless statements, ; case statements, and ; selectors. In the code that Womble shows, there are no variables, so all the " should instead be '. d/x exists then /bin/true is run (successfully). pp file. Hot Network Questions tcpdump -vvv is not verbose enough In which situations or societies do people not take turns to. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. When using cmd. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. 0. This module adds a powershell provider to the exec type, which enables all of the exec parameters, such as creates, onlyif, unless, etc. exe"", path. Hot Network Questions Short video of insurance salesman summoning a demon who also is into insurance Sum of Rows of Vandermonde Matrix Mulliken Labels: How do I tell apart E, doubly degenerate, symmetry apart from T, triply degenerate, symmetry) for a molecular orbital?. The Win32 APIs. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. The generic way for "manually" creating a service in Windows is to use the sc. The Puppet “exec” resource allows users to run commands and scripts on nodes. 4. How do you configure a Puppet exec to execute another command as part of onlyif. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. When I apply the manifest for the first time, it works correctly. 6. If you remove the parameter it will also fail if the regular execution policy is set to Restricted. "Unless" statements work like reversed if statements. If it would be sufficient to emit the message into the master 's log, then there is a set of functions for that purpose. 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. . Puppet: Conditional exec using unless-option. On Windows, most exit codes should be integers between 0 and 2147483647. How can I tell Puppet to stop a service on shutdown without keeping it running? 0. Commenting out or outright deleting the class declaration, as you have done, is the simplest and most universal method for ensuring that the class is not applied. 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. puppet exec command issue. exe only when the aspnet_banking_app is created or changed. A puppet show is a great way to entertain the kiddos at your next event! Find the best puppet shows in Victoria, BC and request free quotes today. Install Puppet Agent on bulk windows server. Puppet can take an existing PowerShell Module and build a Puppet module out of it. instances method defined) a parameter that can ensure the resource's absence; When both these conditions are met, Puppet can purge the resources it doesn't explicitly. 0 to 5. See the Puppet Type Reference for the exec resource and look for unless and onlyif. If none of the cases match, Puppet will do nothing and move on. 0. Since moving to Puppet 5. The simplest solution is to use the shell provisioner to install Puppet modules via module install after the Puppet installation (unless you are using a Vagrant box with Puppet baked in,. 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. I need puppet to execute a script that is inside an installed app. group. 1 Answer. If I try creating it as my process user, I get permission denied. Puppet Exec Resource. 1. PUP-11199. cmd. Puppet runs executed on multiple external systems. unless: A shell command that is run as a test to determine if the command should not run. This is where refreshonly backfires rather terribly. So then intention and documentation has always been the same since 4. 0. 2. Puppet Exec with no command attribute. If the query specified in the unless parameter returns one or. Thus, a package can not both be installed at a particular version and marked held using dpkg. Now that Puppet is installed and ready to run, it’s time to create a Puppet configuration. I would like to simply set a few environment variables in the . my theme is puppet should only execute if this if $::facts['memorysize'] >= '4. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed. There are three main ways for an exec to be idempotent:Conversations. 0. Sep 13, 2012 at 15:51. unless => "powershell. You can add classes to a node’s catalog by either declaring them in your manifests or assigning them from an external node classifier (ENC). . Learn more See the exec documentation for the command, unless, and onlyif. The value that represents the data type of these values is Type. I am just putting small snippet here to show you what its doing. This consistency in code and module structure makes it easier to update and maintain the code. Secondly I would like to use booleans from a bash script running diff <() <(). I was hoping to use onlyif in my class, but it seems a little confusing when trying to check for an absent registry value that contains my route. Or even better, split the shells parts into separate exec resources with dependencies and unless parameters. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 0. g. d directory, then puppet agents pull it down and execute it on every run and provide the fact. Since I don't have Puppet 4. Unless you tell your exec not to run for some reason or another, it will always run. Description. 0. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. g. Sort by Year. November 8, 2023. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. Wow. Q&A for work. The command parameter is the PowerShell code you want to run on your node. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. Adds a new exec provider for executing PowerShell commands. Share. fail when a file exist in puppet. In many cases, such commands get only one chance to fire. Unless you are sharing with the world, you don’t need most. 2. There are a few important parameters to use when writing an exec resource with PowerShell. refresh: Command to execute if the resource is refreshed due to a notify or subscribe metaparameter. Which means, that I have to check all facts and input to puppet outside of puppet, or my custom facts have to be sanitised or pre-escaped before puppet sees them, which is a shame! :-( I'm surprised I can't find an equivalent of Perl's quotemeta or Ruby's Shellwords. If the query specified in the unless parameter returns one or more records, the main statement is skipped. Puppet File resource runs despite Exec unless. The documentation referenced is about something different: the 'unless' statement. This allows you to do more complex task operations, such as. In particular, if you ensure the file absent then it is probably incorrect for the Exec to be triggered when the file is brouught into that state. Puppet - Check if package is installed, but do not require it. Using onlyif allows you to use the return value of one or more commands as your execution criteria; run the exec on a return of 0. You might consider using an 'unless' or 'onlyif' parameter in there so that your resource is only evaluated when first setting up the replica set. "Unless" statements work like reversed if statements. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. 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. 2. TJL. 2 but are only using architecture-appropriate. Q&A for work. Over the years of using puppet I've noticed that people often come up with the same kind of. Your fact could be something like this: #!/bin/bash if [ -f /my/file. The command parameter is the PowerShell code you want to run on your node. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. 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. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. 0\powershell. That will run every time puppet runs. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. Only supported on Windows Server 2003 and above, and Windows 7 and above. You can create relationships between resources or groups of resources using the -> and ~> operators. It is. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed. Let's also assume that you're puppet module knows when do delete these files. g. The default behavior is to report the exit code only for the last command in the pipeline. newtype (:yumgroup) do @doc = "Manage Yum groups A typical rule will look like this: yumgroup { 'Development tools': ensure => present, } " ensurable newparam (:name) do isnamevar desc 'The name of the group' end end. So having Puppet do it automatically will help with that. 5. do, line 50) cannot accept an array of options. See provider/exec. (capital X) permission when using recursion so files can retain the execute permission if they have them, but also allow you to traverse the directory as that requires the execute. Taking the baseline time away, the old module took 20 seconds (32 - 12) and the new module took 10 seconds (22 - 12). Puppet is about describing state and making sure things only have to run once. If this parameter is set, then this exec will only run if the command has an exit code. Puppet includes two Ruby APIs for writing custom functions. exe /g | findstr /C:"$ {timezone}"", } Well, I ended up not needing to do this as I found a config file I could just manage as a template. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. NOTE: This page was generated from the Puppet source code on 2019-09-06 09:16:04 -0700 exec Attributes Providers Description Executes external commands. 0 how to ensure puppet exec run on every event triggered? 0 Puppet: How to execute a Exec resource if another Exec resource failed. 0. Puppet: 'creates' does not create. ;) – ferventcoder. The setuid/setgid/sticky digit is also a. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. if statement, with in expression. 2. 2. This means that if a file is currently a directory,. if you want execute a powershell file:. The Win32 APIs define exit. 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. Puppet File resource runs despite Exec unless. Although that can work, I urge you to consider instead packaging up your service (as an RPM, DEB, or whatever is appropriate for your system), putting it in a suitable repository, and managing its installation via a Package resource. ) I am running Puppet v3. Valid options: String. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . Manage local groups . , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. Puppet provides a built-in exec type that is capable of executing commands. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. I am struggling with how to pass a puppet variable through to powershell. 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. if statement, using expressions and facts. 0. This means a resource with noop => false will be changed if necessary, even when. Puppet exec - fails to execute command as user. Apart from all that, it is good practice with Puppet to actually deploy wrapper scripts that your exec resources. 2. All groups and messages. Node definition. 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. And as for the title of this question which I originally overlooked. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. Puppet provides a built-in exec type that is capable of executing commands. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. Puppet: Exec from class when Exec from another class is successful. Important: This API has severe problems — most notably, functions that use it will leak between environments. They take a control expression and a list of cases and code. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. 0. I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. Publish a module; Topics. As best I can tell by reading the source code the "holdable" feature is fundamentally flawed. Default: Undefined. Improve this answer. Puppet: Conditional exec using unless-option. The exit status when you run it directly and the exit status you expect it to return are irrelevant. It will execute the block of code associated with the first matching case, and ignore the remainder of the statement. The Puppet “exec” resource allows users to run commands and scripts on nodes. The Puppet exec will not run unless the "unless" command exits with status 0. Puppet reboot in stages.