Sequence of Execs in Puppet. Puppet can take an existing PowerShell Module and build a Puppet module out of it. Puppet provides a built-in exec type that is capable of executing commands. November 8, 2023. PUP-11199. 12 behavior got changed to match the intention. This page provides a reference guide for Puppet 's built-in types: package, file, service , notify, exec, user, and group. Create this file only if it does not exist, or Start this windows service unless it’s already running. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. I am currently learning puppet, and I am attempting to have an exec that will notify another exec but only if the first exec is succsfull. It would be better to explicitly "exit 0" whenever you do not "exit 1". Discover. 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. From the puppetlabs docs: The noop metaparameter allows you to apply individual resources in noop mode, and will override the global value of the noop setting. Contribute to tarunmunjal/puppetlabs-powershell development by creating an account on GitHub. All modules; Supported modules; Modules with tasks; Contribute. Another way to control an exec resource is to add a refreshonly => true attribute. exec { 'mysql post cmd1': command => 'whatever', require => Mysql::Db['cosmed'], unless => 'command to check that this exec has been applied. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. I wouldn't use puppet for a yum update, and my execs always have creates, onlyif, refreshonly or unless to ensure they only run when needed. This style guide applies to Puppet 4 and later. If invoked by a. Control expressions unless => 'ls /somefile' ls will return with a non-zero return code if the file does not exist and unless will only let the exec it is under execute if its test returns a non-zero return code. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Puppeteer Script Works Local But Not On EC2 AWS. Adds a new exec provider for executing PowerShell commands. Puppet provides a built-in exec type that is capable of executing commands. Hiera supports booleans, and always has done so -- or at least, it is so documented. A quick reference of syntax examples for the Puppet language. However, this manifest will exec the command every time the puppet client checks in with the puppet master. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Plans. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. As a result, notifications are shown as a change on every Puppet run. Aside from being good. Valid options: String. 2. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. 1. Only supported on Windows Server 2003 and above, and Windows 7 and above. As a result, the chown in the main command always is run, and that is reported. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. 1 Answer. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. 1. Puppet Exec tag onlyif troubles. Running Powershell in Puppet. When something isn't builtin to file, I generally just to turn to an puppet exec declaration. e. The Win32 APIs define exit. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple. 5. Ben is the Community and DevRel lead at Puppet, where he's been scared by production Puppet code for the last decade. Discover. 4 Answers Sorted by: 24 Have you tried this? onlyif => "test ! -f /usr/local/bin/papply" Not sure if Puppet can use the '!' character Perhaps a better. 3 puppet exec returned 1 instead of [0] 0 Puppet strange behaviour of execs. Adds a new exec provider for executing PowerShell commands. This means that if a file is currently a directory,. . Modules that are supported by Puppet, Inc. Running Powershell command directly using Puppet exec resource. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . ps1 script. Chaining arrows. 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. 1 Unless issue with Puppet. If you are using Puppet 3. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. Teams. 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. Learn more about TeamsUnless puppet supports escaping somehow. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. This seems to work just fine. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. This can have severe impacts to the machines, especially if security settings are defined in a wrong way. 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. John. It is not possible to use bash here. 1. Hot Network QuestionsPuppet avoids destroying directories unless the force attribute is set to true. "Unless" statements work like reversed if statements. exe only when the aspnet_banking_app is created or changed. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. Modules. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed. Node definition. 1. 1 on many Windows machines. Puppet: Exec from class when Exec from another class is successful. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Wow. If it is possible to ensure the file to be a directory then that, too, probably would not play nicely with the effect of the Exec. Modules. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. Default: Undefined. Node examples. {"payload":{"allShortcutsEnabled":false,"fileTree":{"manifests":{"items":[{"name":"fcontext","path":"manifests/fcontext","contentType":"directory"},{"name":"boolean. Sep 13, 2012 at 15:51. This tells Puppet to run aspnet_regiis. In other words, if you use standard Puppet relationships to ensure that tooling is managed prior to classes or resources that use the deferred functions using that tooling, then it will operate as expected and the function will execute properly. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. Ensure directory tree exists. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Alternative 1: create a bash script: ugly Exec resources and temp files. in. And after that, run puppet agent with pluginsync enabled, and you can use custom type like this:. Puppet - How to purge a directory. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. where read = 4, write = 2, and execute/search = 1. So in pseudocode: IF postfix is installed DO touch /tmp/wehavepostfix DONE. I want to check if the file exists in the client. Another way to control an exec resource is to add a refreshonly => true attribute. This differs from some other languages where looping constructs are special keywords. 0. I am trying to set some powershell inline cmdlets within puppet recipes in order to install other msi packages and powershell scripts. Puppet lookup uses a hierarchy of data sources, and a given key might have values in multiple sources. 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. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false,. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. It logs all diagnostic messages during a Puppet run. DevOps. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. The Puppet “exec” resource allows users to run commands and scripts on nodes. If /etc/init. 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. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. Puppet for Windows and Powershell Recipes. 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. If it always returns a false (non-zero) exit code then the two. Puppet check if a nagios resource exists. You can use the unless parameter to only execute the statement in certain states. Detecting if windows service is already installed using puppet exec. 0\powershell. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. 0. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. 0. – tom. if statement, using expressions and facts. And as for the title of this question which I originally overlooked. 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. The service will detect it is not running and start itself if required. 0. Puppet strange behaviour of execs. 5. Execute create_resource after everything has finished or after exec has finished. 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. There are a few important parameters to use when writing an exec resource with PowerShell. Puppet strange behaviour of execs. ” There is also a set of values whose data type is “data type. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. Modules that are supported by Puppet, Inc. String comparison using in doesn't work with unless. In the Puppet language, nearly everything is an expression, including. The shortest path to creating better Puppet modules. Puppet Exec resource to apply only when a File changes. 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. exec { ‘SETHELLO’: command => ‘Add-Content -Path c: est. Your best bet is to run the action as a script and set up the PATH inside the actual script. Iteration functions. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any. 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. 0. 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. The onlyif parameter is defined as. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. Puppet File resource runs despite Exec unless. 1. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. 0. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. 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/. The CentOS/Puppet installation process should already have created a directory called /etc/puppet (If it hasn’t, create it with mkdir /etc/puppet ). 0. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. 0. Something like this should work: - name: Get rabbitmq vhosts. Googling unless ansible showed this document about when. 6. 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. 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. The command should only be run as a refresh mechanism for when a dependent object is changed. e. This is where refreshonly backfires rather terribly. Creating a directory is another task that is handled by the powerful and flexible file type. How would the watchdog service know the Puppet exec failed? I don't want to remove the dir or run the exec if the directory does exist and the first exec was completed successfully. txt 2>&1. 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. This consistency in code and module structure makes it easier to update and maintain the code. 2. Project. You can also set variables within the manifest, which can change the. 00 GiB'and $::facts['processorcount'] >= 2 and Exec['port_connectivity'] condition was successful. . Puppet File resource runs despite Exec unless. To use the BoltSpec library functions, include them in either the spec_helper. If a manifest has no syntax errors, the tool outputs nothing. 0. You can create relationships between resources or groups of resources using the -> and ~> operators. 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. The exec resources will only refresh themselves when they receive a notification. Puppet Exec Resource. The setuid/setgid/sticky digit is also a. 1. require means that the the resource passed to require must be applied before the calling resource. To run an exec task, use the task command, specifying the command to be executed. The baseline measures how long Puppet takes to just start up, so it’s not even executing powershell then. ) I am running Puppet v3. I want to check, if a given string is inside an array and if it isn't, I want to execute the code inside. 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. } Puppet: Conditional exec using unless-option. , unless you really intend to resolve that path against the working directory. Scripts file serving mount. Publish a module; Topics. 2. you have no choice (to my knownledge) currently than to use the exec resource with creates + onlyif or unless directives. supported Adds a new exec provider for executing PowerShell commands. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. 6. When using cmd. 0. Puppet exec unless doesn't appear to work how I expect. exe and specifying a file path in the command line, be sure to use backslashes. , for example, the Exec resource being. Despite the -ExecutionPolicy parameter the PowerShell command will fail if execution is restricted via group policy. The Windows module pack is a group of modules available on the Forge curated to help you complete common Windows tasks. Getting started. Adds a new exec provider for executing PowerShell commands. execs will always run. e. Install Puppet Agent on bulk windows server. Connect and share knowledge within a single location that is structured and easy to search. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. 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. Secondly I would like to use booleans from a bash script running diff <() <(). rb in the Puppet source code. An example in Puppet 2. Here is my code (Puppet): exec { 'Download mediawiki to temp': cwd. [Unit] Description=My Webapp Java REST Service [Service] User=ubuntu # The configuration file application. First I would like to use booleans as defined in Hiera [ auto lookup function ]. 2. They take a control expression and a list of cases and code. How do you configure a Puppet exec to execute another command as part of onlyif. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. 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. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. The issue isn't that the package doesn't install, but rather that apt automatically starts the. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. When you share a folder on your computer, other users on the same network can access the files and folders inside it. Let's assume that you can write a find command to list all of your files that you want deleted. Puppet: Conditional exec using unless-option. 4. Then, you can install the Nuget package via the package resource in Puppet. Machines receiving task requests must have SSH or. All groups and messages. 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. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. If it would be sufficient to emit the message into the master 's log, then there is a set of functions for that purpose. The 'refreshonly' parameter, on the other hand, makes application of the Exec conditional on (and subsequent to) one or more other resources changing, sort of like an 'on update' trigger in a database. Puppet - Not able to find a declared class. The onlyif and unless. Menu Log In List your. 6. 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. As an example I have a powershell script that opens notepad:. 3. This tells Puppet to run aspnet_regiis. Puppet running exec. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. That's what the ticket is about. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. Apart from all that, it is good practice with Puppet to actually deploy wrapper scripts that your exec resources. } @choover Unfortunately that won't work. You can validate that a manifest's syntax is correct by using the command puppet parser validate. The command of an exec resource, unless the executable requires backslashes, e. This runs the first-exec, and unless /var/exists it runs the second-exec. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. See provider/exec. You can use not filter to get unless like behavior. 2 Handling names with spaces. notify is set on the user, and refreshonly is set on the exec. Case statements will execute a maximum of one code block. 0. #####unless Runs the exec, unless the command returns 0. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. There are three main ways for an exec to be idempotent:Conversations. exec. It is a limitation of the underlying system. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. asked Apr 1, 2022 at 20:47. supported Adds a new exec provider for executing PowerShell commands. And if you do intend to resolve it as a. 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. The command parameter is the PowerShell code you want to run on your node. Shell built-ins. But it when I try it, it is. 1. The command should only be run as a refresh mechanism for when a dependent object is changed. 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 want to check if the file exists in the client. #####unless Runs the exec, unless the command returns 0. , for example, the Exec resource being. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. This will not work because the Package resource type does not have an 'unless' parameter -- that's a feature specific to Exec resources. TJL. 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. But if you want specifically to use the unless or onlyif property of an Exec resource to control whether to run that Exec's command, then you have to understand that those properties specify operating system commands to run to perform the evaluation. Unless you tell your exec not to run for some reason or another, it will always run. (2) it is unclear from your description whether the Exec's command is actually run (vs. 0. at deployment time, but figured it would be best to have Puppet manage it. |>). The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 0. How to clean up files created by Exec resources? 0. 0. 1', } Puppet supports if and unless statements, case statements, and selectors. 6. I've created a puppet script to install Azure client and in the last step before using yum install, I want to make sure that the package haven't installed before for prevent from duplicate install. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. The file is not being created because the Puppet agent is never actually applying your catalog because you have a compilation error: Error: Failed to apply catalog: Validation of Exec. 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. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. In your case, it sounds like you want the exec to run only when your file changes. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. The Puppet “exec” resource allows users to run commands and scripts on nodes. 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. Share Puppet can execute binaries (exe, com, bat, etc. jar file is actually an update for an application which is running as a service. Puppet exec resource; Puppet classes and modules; Puppet Forge modules; Puppet Express; Puppet Express 2; Puppet 4 : Changes; Puppet --configprint; Puppet with Docker; Puppet 6. 2. 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. With PE on the command line, run puppet task run exec command=<COMMAND>. Scripts file serving mount. 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. you should get something like -. You may need to reboot the system after enabling if SELinux was. Larger exit codes on Windows behave inconsistently across different tools. Puppet: Conditional exec using unless-option. Puppet Exec with no command attribute. Since I don't have Puppet 4. PUP-11199. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. Sequence of Execs in Puppet. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. The documentation for Exec's onlyif tag says this: onlyifThe exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. JULY . Need to copy a file via puppet only if a Windows MSI package is not installed. 1 Answer. 1. Hot Network Questions tcpdump -vvv is not verbose enough In which situations or societies do people not take turns to. ##Development. 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. Puppet - Check if package is installed, but do not require it. 0powershell. running the code resulted in: fatal: [192. 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. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . require means that the the resource passed to require must be applied before the calling resource. NORTHWEST LIBRARY FEDERATION. Default: Undefined. 1. do, line 50) cannot accept an array of options. With respect to the update to the question, the key requirement for the Service to be refreshed before the Exec is applied is that there be an ordering relationship between the two, whether direct or transitive. As a suggestion:I am using Puppet installed with the powershell module. 4. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. 2. 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. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Hot Network Questions To find rate of change of area of triangle when rate of change and value of length of base and height are 3cm/min, 5cm/min and 8cm,10cm respectively.