Puppet subscribe exec First I would like to use booleans as defined in Hiera [ auto lookup function ]. sh', } But this gets executed on every puppet-apply-run. While any resource can be the dependency that triggers a refresh, there are only a couple of resource types that can respond to one. Note: changing the relationship of Exec['exec-CCC'] and Exec['exec-DDD'] from `require` para `notify` does not solve the problem, the behavior is the same. To specify that a resource must refresh when a related resource changes, create a notifying relationship with the subscribe or notify metaparameters or the notification chaining arrow ( ~> ). . Para realizar las pruebas en vivo de la aplicación de la configuración y los manifiestos en el nodo Puppet, usaremos una demostración de trabajo en vivo. If Puppet is managing the user that an exec should run as, the exec resource will autorequire that user. Although, it fulfills the `require` relationship with Exec['exec-DDD'], which runs. The most common Puppet’s Resources are Listed below. Example of file resource is mentioned below: Apr 7, 2014 · Okay, I just started learning Puppet and working through the docs. exec { "${name}_exec": command => "echo hello ${name}", path => '/bin:/usr/bin', refreshonly => true, The exec type provides a simple way to run those commands via puppet (on the puppet client, not the master) and harness them in your modelling, whether as a dependency of another resource, an easy way to accomplish something puppet doesn't yet provide or as part of a gradual migration. If a resource subscribes to another resource, then Puppet tries to "refresh" that resource if the resource it is subscribed to changes state. ps1. They cannot include elsif clauses. For example, to view the free disk space of a host, run: With PE, run puppet task run exec command="df -h" --nodes Information gathered from the target node is available to the catalog builder only in the form of facts. (For example, apt-get update. For specific details about these types, see the resource reference . The default search pattern is the name of the service, but you can specify it with the pattern attribute. exe -executionpolicy remotesigned -file C:\test. I want to run a puppet exec-resource based on a file update. 0 on RHEL 6 and am doing package management via the exec resource. Puppet is an amazingly powerful and flexible tool. It's one that can change your daily work flow for the better once you start using it, but like all open ended tools, it can take a little while to become familiar with. So I tried the exec-attribute refreshonly. For example: dcs@shadowfax:~/tmp$ ls -l test ls: cannot access test: No such file or directory dcs@shadowfax:~/tmp$ ralsh exec "/bin/echo ok" onlyif="/usr/bin/test -f test" exec { '/bin/echo ok': returns => ['0'], } dcs@shadowfax:~/tmp$ touch test dcs@shadowfax:~/tmp$ ralsh exec "/bin/echo Aug 6, 2017 · This playlist/video has been uploaded for Marketing purposes and contains only selective videos. Aug 12, 2014 · Puppet: Exec from class when Exec from another class is successful. , Perforce Software, Inc. Aug 17, 2012 · The 'unless' and 'onlyif' (and 'creates') parameters serve as means for an Exec to determine whether it is already in sync. Depending on the complexity of the script, and if you want to run it with tools other than Puppet, I'd generally create it as a file-on-disk with a file type, then have an exec run the scripts. Exec['A'] -> Exec['B']-> if var = 1(Exec['x']) if var = 2(Exec['y']) if var = 3 (Exec['z]) -> Exec['C'] -> Exec['D'] Basically I have an Exec then I have if statements and then I need to call an exec. Feb 7, 2022 · There are three main ways for an exec to be idempotent: The command itself is already idempotent. CentOS system, httpd installed and stopped. In other words, imagine this code: If I had a subscribe clause in an exec function that says subscribe => [File[file1], File[file2]] will Puppet execute the exec function if one or the other File changes, or will it execute only if both files change? If it executes only when both change, how can I get the execute function to execute if one or the other file changes? Here's an example manifest that contains an exec resource inside a defined resource type, a declaration of that defined resource type and a service resource that notifies that defined resource type. Feb 12, 2019 · thanks for your answer, I added the line to the EXEC and I delete the Folder_a from the Destination, after that I run puppet agent -t it create the Folder_a again but the exec doesnt run test. Jul 20, 2020 · you need to subscribe => Exec['register_host'], so you ensure that whenever the Exec['register_host'] is triggered your Exec['register_service'] is also triggered, you need to ensure that your Exec['register_service'] is called only as a consequence of Exec['register_host'] you need to run Exec['register_service'] only if the Exec['register Mar 8, 2018 · The trick to getting this working properly is that something has to write c:\Test\cleanup. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute the code block. conf"], File["/etc/sysconfig/puppet"] ] refreshonly => true, command => "service puppet The notify and subscribe metaparameters establish the same dependency relationships as before and require, respectively, and also trigger a refresh whenever Puppet makes a change to the dependency. , or an affiliate. Nov 14, 2018 · Suppose that Exec resource Y subscribes with refreshonly => true to a resource X in class A. For the entire video course and code, visit [http://bit. Such trademarks are claimed and/or registered in the U. But I also do not know whether Puppet will retry on an Exec refresh. Aug 29, 2014 · refreshonly/subscribe would also have the advantage that if Puppet doesn't have to (re)start the service then the Exec will not run. Below is what I have: Jul 31, 2016 · I've got a question on how to best do this senario, I've got a number of exec commands which need to be run in this order. Is there a way we can set the exec so that it only runs if puppet has applied other changes? audit. 04 server using puppet exec to run commands to make those changes. 2. local service ntpd start How can I make Puppet run this command once on all servers? Puppet provides a number of ways to do this and the simplest is by using the notice function if you want the message to appear on the puppet master or the notify type if you want the message displayed on the client. I'm guessing it will do, but I don't know. Jul 28, 2017 · Unfortunately that's not how puppet works. Refresh: exec resources can respond to refresh events (via notify, subscribe, or the ~> arrow). But with this, the exec gets not Duplication: Even though command is the namevar, Puppet allows multiple exec resources with the same command value. A resource will perform its refresh action if Puppet changes any of the resources it subscribes to. There is another metaparameter, subscribe. Am i correct here ? Am i correct here ? Does this also means that user resource will also not be executed along with exec because of the refreshonly parameter which means the user Aug 30, 2018 · Puppet Exec Resource. 7. These messages are written to the log when puppet runs and can also be seen in the output of a debug run. To run an exec task, use the task command, specifying the command to be executed. The --noop flag tells Puppet to determine which resources are out of sync, and to report them without actually synchronizing them. Then suppose that resource Z requires the same resource X in class B. for puppet apply) then it may serve your purpose to use the generate() function to run a command on the catalog building machine and collect its output. Feb 25, 2015 · First of all thank you @ferventcoder I didnot know this (I know windows Wow64 implementation on windows). When the command is run, exec sends notification to all its subscribers. Refresh: service resources can respond to refresh events (via notify, subscribe, or the ~> arrow). I'm trying to copy a file from a shared drive to c:\temp like this: Mar 29, 2016 · 1) Since refreshonly is an exec parameter using it inside exec will not cause chage -d 0 askar to execute unless there is a change in user resource manifests. To subscribe to this RSS feed, copy and paste Jan 7, 2013 · My question is why is the exec firing every run, and how can I only make it run when the subscribed service is refreshed? I have tried removing the "onlyif" statement in the Exec, thinking that perhaps an onlyif would trigger an unconditional execution, but even without the "onlyif", the exec still triggers every run of puppet. exe command? i. The condition is evaluated first and, if it is false, the code block is executed. Notifying relationships also interact with containment. domain. Attributes exec { 'resource title': command => # (namevar) The Puppet is an open-source configuration management tool from Puppet Labs. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. bar': audit => content, } ~> exec { 'deployment': command => 'do_something_meaningful. And refreshonly-parameter makes sure that command is run only on refresh. I would like to add a number of control gates into my manifest via onlyif and unless . file resource. Nov 6, 2015 · I'm pretty new to puppet, and I've got stuck on how to notify a class with a parameter. e. and other countries and regions. The complete rules for notification and refreshing are: Receiving refresh events Try it more like this: exec { "puppet restart": subscribe => [ File["puppet. If it is, then its command will not be run, in the same way that a File The built-in resource types that can refresh are service, exec, and package. But this configuration does not detect when any of the configuration files have been modified outside of puppet. Behavior. From what I see: require does the same as before; subscribe does the same as notify; Obviously these are added at opposite sides of the dependency relationship, but you get my point. If the condition is true, Puppet does nothing and moves on. Must be fully ensure => # Whether the file should exist, and if so what backup => # Whether (and how) file content should be backed checksum => # The checksum type to use when determining checksum_value => # The checksum of the source contents. Exec resources cannot set values that can be referred to by other code in the puppet manifest. There's a few concepts here that you need to understand: Puppet is 'declarative', not a 'script'. Mar 25, 2015 · I wonder if it's possible in puppet (windows agent) for a variable to hold the value of a file name, then add this variable value to an exec windows cmd. The puppet labs link you provided a good puppetlabs-registry, it is really good, thank you. service ntpd stop ntpdate ntp3. Even if the file has not changed. Welcome to the Puppet CookBook. Manages local files. Puppet does not know about the files which are been modified by the shell script. ps1', } We would like to show you a description here but the site won’t allow us. You are declaring the Desired State, and puppet takes care of getting the target machine into that state. Puppet running exec before other commands. 18 $ service httpd status httpd is stopped. When audit is set for an attribute, when Puppet applies the catalog, it checks whether that attribute of the resource has been modified, comparing its current value to the previous run. Oct 11, 2016 · In what order resources that are mapped in an array for attributes like require, subscribe, before and notify execute ? Also, when execute, will it fetch all resources at once and runs in parallel or is it synchronized ? For example, exec { 'A': } exec { 'B': } exec { 'C': } exec { 'D': require=>[ Exec['A'], Exec['B'], Exec['C'] ]} May 7, 2025 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Oct 12, 2017 · Given your manifest, Puppet only promises that the Exec resource - if it is applied at all - will always be applied before the File resource. On the other hand, we can tell puppet that a service should be restarted when a file changes: service { "nrpe": ensure => running, Puppet and other identified trademarks are the property of Puppet, Inc. Feb 2, 2018 · I am trying to make some changes on my Ubuntu 16. Login with an Identity Provider: Sign in with Google Sign in with Yahoo! Sign in with Amazon Jun 18, 2023 · 4、Puppet的编译器会避免在不同的代码段里面管理同一个资源, 如果在不同的代码段对同一个资源进行配置,执行Puppet的时候你会得到一个语法错误. 1. There are three main ways for an exec to be idempotent: Notify, Subscribe and Exec. Esto se puede copiar y pegar directamente para probar cómo funciona la configuración. 0\powershell. pp Aug 28, 2018 · 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. Tested with Puppet 2. /notify_defined_types. d with a parameter: define myclass::update-r Puppet and other identified trademarks are the property of Puppet, Inc. 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. If it so happens that the target node is also the machine on which the catalog builder is running, however, (i. . Very odd. Something like: File { '/tmp/foo. Jul 20, 2020 · you need to subscribe => Exec['register_host'], so you ensure that whenever the Exec['register_host'] is triggered your Exec['register_service'] is also triggered, you need to ensure that your Exec['register_service'] is called only as a consequence of Exec['register_host'] you need to run Exec['register_service'] only if the Exec['register Puppet uses notifying relationships (subscribe, notify, and ~>) to tell resources when they should refresh. Puppet Resources are the building blocks that puppet uses to model system configurations. The Puppet “exec” resource allows users to run commands and scripts on nodes. I'm trying to copy a file from a shared drive to c:\temp like this: Feb 2, 2018 · I am trying to make some changes on my Ubuntu 16. Feb 7, 2022 · Puppet and other identified trademarks are the property of Puppet, Inc. "ferventcoder" but my question to you, if we specify "C:\Windows\System32\reg query" on a 64-bit windows, then as per the documentation ( the link you provided) it should be redirected to c:\windows Sep 4, 2013 · Yes. The refresh behavior of execs is non-standard, and can be affected by the refresh and refreshonly attributes: Jul 9, 2014 · We could define an exec that runs in a post run_stage to run the command but this by default would fire every time puppet runs, and then our reports will always show as puppet made changes regardless of whether changes were made or not. Puppet探测这种冲突的情况是通过判断资源类型和资源的title(标题)，如果两个资源有相同的资源类型和title，那么就 Feb 7, 2022 · As a last resort, Puppet will attempt to search the process table by calling whatever command is listed in the ps fact. With PE on the command line, run puppet task run exec command=<COMMAND>. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. 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. ) The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. S. Here's an example manifest that contains an exec resource inside a defined resource type, a declaration of that defined resource type and a service resource that notifies that defined resource type. file only when you need the script to be triggered to run, and the exec resource has to subscribe to it. 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. When I run puppet, the command is executed successfully but puppet exec doesn't make the necessary changes. I'm trying to notify a class that I found, which runs update-rc. pp. Oct 2, 2012 · Exec['exec-CCC'] does not receive a notification and does not run because exec-BBB failed. Or even better, split the shells parts into separate exec resources with dependencies and unless parameters. Sometimes I want to run a command one time on all servers, e. g. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Marks a subset of this resource's unmanaged attributes for auditing. All third-party trademarks are the property of their respective holders. The parameter onlyif limits process execution to when the command pointed by onlyif returns success (0). Subscribe and Notify are complimentary; they do the same thing, but in differing directions. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. There are a few important parameters to use when writing an exec resource with PowerShell. Accepts an attribute name, an array of attribute names, or the value all. The complete rules for notification and refreshing are: Receiving refresh events Aug 28, 2018 · 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. ly/2 Jul 24, 2014 · I am running Puppet v3. Attributes exec { 'resource title': command => # (namevar) The Dec 26, 2014 · I think it is easier to update the configuration file per sed script instead of providing different puppet templates for each particular release. Could you instead use the shell provider and exec "sleep 30; rabbitmqadmin list vhosts"? – file { 'resource title': path => # (namevar) The path to the file to manage. Subscribe all services to this Exec: service { 'openstack-nova-network': ensure => running, enable => true, subscribe => Exec['dummy-nova-refresh'], } Apr 17, 2015 · Reverse your thinking! Use Subscribe to link your variably-named Exec (bad form, IMHO) to the File. cmd file, why? I make also changes to the Folder_a but it still dont run EXEC – Puppet uses notifying relationships (subscribe, notify, and ~>) to tell resources when they should refresh. These are command We would like to show you a description here but the site won’t allow us. tsfd wcoi eeiefn vsfoc fox nplc aqbamfr xnrqjp tiimcqz mqbdwf