First I would like to use booleans as defined in Hiera [ auto lookup function ]. 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. require means that the the resource passed to require must be applied before the calling resource. where read = 4, write = 2, and execute/search = 1. Important: This API has severe problems — most notably, functions that use it will leak between environments. Unless you are sharing with the world, you don’t need most. As a suggestion:I am using Puppet installed with the powershell module. Sends an arbitrary message, specified as a string, to the agent run-time log. 1. 0, to 5. Adds a new exec provider for executing PowerShell commands. pp file. (2) it is unclear from your description whether the Exec's command is actually run (vs. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Secondly I would like to use booleans from a bash script running diff <() <(). You can read more about it here. service ntpd stop ntpdate ntp3. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. Modules that are supported by Puppet, Inc. Larger exit codes on Windows can behave inconsistently across different tools. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. do, line 50) cannot accept an array of options. Unless you tell your exec not to run for some reason or another, it will always run. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. Try again and this time show the failure. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . escape. cmd. Puppet: 'creates' does not create. In the code that Womble shows, there are no variables, so all the " should instead be '. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. But because a dependency failed, Exec['Y'] will be skipped during this transaction. you have no choice (to my knownledge) currently than to use the exec resource with creates + onlyif or unless directives. 2 install on Ubuntu 18. I am trying to run a Powershell command directly using Puppet exec resource instead of specifying path to the Powershell script. 1. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. But Puppet is quite hard to learn. command => '/path/to/script. Adds a new exec provider for executing PowerShell commands. November 8, 2023. Just. Long answer. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. #####unless Runs the exec, unless the command returns 0. Rename("new-guest")', unless => 'if (Get-WmiObject. 5. 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. silent way to import registry file via puppet module. Running Powershell command directly using Puppet exec resource. Project. For example, to view the free disk space of a host, run: With. JULY . However, this manifest will exec the command every time the puppet client checks in with the puppet master. The setuid/setgid/sticky digit is also a. If it would be sufficient to emit the message into the master 's log, then there is a set of functions for that purpose. 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. Valid options: String. unless: A shell command that is run as a test to determine if the command should not run. Currently, he experiments. "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 ). 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. 2. onlyif and unless in --noop documented. exec { ‘SETHELLO’: command => ‘Add-Content -Path c:\test. my theme is puppet should only execute if this if $::facts['memorysize'] >= '4. 1. Puppet File resource runs despite Exec unless. 2. . 0. When evaluated, these tagged expressions can modify text in the template. There are a few important parameters to use when writing an exec resource with PowerShell. How to set environment variables in Ubuntu OS using Puppet. 3. 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. It am trying to add 'replica' user to my postgres server though puppet so i can use it in my master-salve cluster. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. Puppet - How to purge a directory. To do this in Puppet you would have to use an Exec and invoke setfacl (if you were on Linux, for example) directly. All groups and messagesCreate A Puppet Configuration File. An example in Puppet 2. Puppet: Exec from class when Exec from another class is successful. Puppet File resource runs despite Exec unless. onlyif and unless in --noop documented. In the Puppet language, nearly everything is an expression, including. It would be better to explicitly "exit 0" whenever you do not "exit 1". 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. exe and specifying a file path in the command line, be sure to use backslashes. Adds a new exec provider for executing PowerShell commands. Puppet Exec Resource. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Our choice at the beginning of the project was to not start with it, for these reasons : It was important for the team to learn shell first, even if the lifetime of the scripts had to be short. require means that the the resource passed to require must be applied before the calling resource. I am new to Puppet, and I am trying to install a file if a package is installed. Puppet is an open-source configuration management tool from Puppet Labs. supported Adds a new exec provider for executing PowerShell commands. The problem also happens to my start command which also use bundle exec: after puppet finished dea_ng::install and run dea_ng::service, the command below did not work unless I execute it manually on the client machine. Since Puppet 2. On reboot, the directory doesn't exist, strangely enough. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. rb file or in the individual test files, and configure Puppet and Bolt for the testing environment. Expressions are statements that resolve to values. And as for the title of this question which I originally overlooked. Wow. 1. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. 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. The notifying arrow is a tilde and a greater-than sign ( ~> ). You can also set variables within the manifest, which can change the. The Puppet “exec” resource allows users to run commands and scripts on nodes. 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. 3 puppet exec returned 1 instead of [0] 0 Puppet strange behaviour of execs. Please qualify the command or specify a path. Note: These two behaviors should not be mixed for a given class. For information on all core types, including supported types in the puppet-agent package, see. 5. 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. – tom. 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. supported Adds a new exec provider for executing PowerShell commands. With PE on the command line, run puppet task run exec command=<COMMAND>. 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. exec {'rename-guest': command => '(Get-WMIObject Win32_UserAccount -Filter "Name='guest'"). Puppet strange behaviour of execs. The onlyif parameter is defined as. Sort by Year. 1 Answer. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. 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. So having Puppet do it automatically will help with that. # Setting Powershell Execution Policy to. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. You can read more about it here. Adding a / to the end of a file name isn't enough to tell puppet to. You can create relationships between resources or groups of resources using the -> and ~> operators. My concept is Execute the script if the output from az --help give nothing (which mean there's no Azure install)Puppet exec unless doesn't appear to work how I expect. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. 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. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. This will cause puppet to. You may need to reboot the system after enabling if SELinux was. The Puppet Design Philosophy Before we begin to explore best practices with Puppet, it’s valuable to understand the reasoning behind these recommendations. g. ##Development. Assignment operator. – 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. I tested using an Exec with an unless parameter that emits the message, but Puppet does not seem to print the output of the unless command. , for example, the Exec resource being. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. The Puppet “exec” resource allows users to run commands and scripts on nodes. Back to overview of wls_exec. 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. 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). Share. 1. Unix: exec { 'delete_files': command => "/bin/find [your find command arguments here] -delete", } Some find commands don't have -delete, so. 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 command should only be run as a refresh mechanism for when a dependent object is changed. 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. The problem is the line when: rabbitmqctl list_vhosts | grep sensu. Since I don't have Puppet 4. If the path isn’t set, you must fully qualify the command’s name. 4. So in pseudocode: IF postfix is installed DO touch /tmp/wehavepostfix DONE. Using onlyif allows you to use the return value of one or more commands as your. Sequence of Execs in Puppet. Puppet: how to remove a directory and everything in it. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. So then intention and documentation has always been the same since 4. Resource default for the exec type A resource default statement set default attribute values for a given resource type. The problem is that the exec command is running before the group command. exec { 'chage': path => '/usr/bin/', command => 'chage -d 0 askar', subscribe => File ['askar'], refreshonly => true, } } I then verified that after applying the refreshonly parameter , the. Is this the best way to do this?. d directory, then puppet agents pull it down and execute it on every run and provide the fact. 1. Only supported on Windows Server 2003 and above, and Windows 7 and above. 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. 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. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. 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. It will execute the block of code associated with the first matching case, and ignore the remainder of the statement. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. By default, Puppet returns the first value it finds, but it can also continue searching and merge all the values together. If exec command was successful and facter returns true then only it should execute, but following manifest executing individually without checking whether that exec. Puppet avoids destroying directories unless the force attribute is set to true. 0 through 3. exe -NoProfile -NoLogo . x86_64]/unless) Check "/bin/rpm -q open-vm-tools" exceeded timeout All these commands can be run locally to the host and return fairly quickly, but when puppet executes them they time out. 0 on RHEL 6 and am doing package management via the exec resource. 1. service. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. A second option would be to use the schedule metaparameter: schedule { 'everyday': period => daily, range => '1:00 - 1:59', } exec { 'do your thing': schedule => 'everyday', } That assumes that Puppet really will run only once per hour. supported Adds a new exec provider for executing PowerShell commands. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed. Adds a new exec provider for executing PowerShell commands. Puppet have a defined resource fail if a variable is set to undef. Let's also assume that you're puppet module knows when do delete these files. The exec resource from Puppet, the automation framework, is a mysterious beast. 6. On Windows, most exit codes should be integers between 0 and 2147483647. 163k 8 82 159. You can use the unless parameter to only execute the statement in certain states. 10, to 5. Puppet runs executed on multiple external systems. 1. Adds a new exec provider for executing PowerShell commands. I am just putting small snippet here to show you what its doing. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. 2. {"payload":{"allShortcutsEnabled":false,"fileTree":{"lib/puppet/type":{"items":[{"name":"file","path":"lib/puppet/type/file","contentType":"directory"},{"name. Puppet File resource runs despite Exec unless. 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. I need puppet to execute a script that is inside an installed app. Using virtual box and a vagrant bas. Their exit codes convey whether to proceed with running the 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. ##Limitations. 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. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. you should get something like -. Only supported on Windows Server 2003 and above, and Windows 7 and above. In your case, the Exec is always successfully applied. if reason variable null or empty, halt with an explanatory message; Bash's -z conditional operator can catch both null and empty cases, including when the value is null on account of the variable not being set at all, but remember that it is evaluated after the command is fully expanded. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. However the in function seems to work with if only, when I use unless I get the following e. It's important to note that the notify resource type is not idempotent. If the query specified in the unless parameter returns one or. 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. 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/. 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. g. 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. 0powershell. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. 2. All groups and messagesConditional execution of puppet defined resource type through exec. check that the node can communicate with the puppetmaster on the relevant port. 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 it when I try it, it is. loki77. 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. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. The statement itself is simple but the class doesn't contain any built-in conditional checks (similar to "unless =>" in exec class). 0. #####unless Runs the exec, unless the command returns 0. Puppet strange behaviour of execs. asked Apr 1, 2022 at 20:47. 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. If. 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. I can fix this manually. "Unless" statements work like reversed if statements. Thanks!. So in. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. Tags. 0. As an example I have a powershell script that opens notepad:. I'm experiencing a very strange behavior with Puppet's Exec type. 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. Puppet exec unless doesn't appear to work how I expect. Adds a new exec provider for executing PowerShell commands. STILL REALLY WEIRD, but ok. 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. 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. Related questions. } @choover Unfortunately that won't work. Teams. 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. 2. if statement, with in expression. 5. execs will always run. 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,. This means a resource with noop => false will be changed if necessary, even when. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. It is a limitation of the underlying system. 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. To run an exec task, use the task command, specifying the command to be executed. 0. Puppet provides a built-in exec type that is capable of executing commands. Puppet: Conditional exec using unless-option. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. 1. # Setting Powershell Execution Policy to unrestricted exec { 'Set PowerShell execution policy unrestricted': command => 'Set-ExecutionPolicy Unrestricted', unless. config/autostart ]' is not qualified and no path was specified. Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. This differs from some other languages where looping constructs are special keywords. 0. Include-like behaviorAll groups and messages. Chaining arrows. wow! My recommendation is: throw it away and start over. 7. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. when i do it manually ("CREATE ROLE replica ENCRYPTED PASSWORD '123';") it does work, but for some reason it does not work from the puppet. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. code. I am struggling with how to pass a puppet variable through to powershell. This will not work because the Package resource type does not have an 'unless' parameter -- that's a feature specific to Exec resources. I would like to simply set a few environment variables in the . However, I strongly recommend that you do not use any kind of non-conditional exec with puppet. Extending the timeout is an option but ridiculous since default is 300 seconds and none of these commands should take 5 minutes or more to return. how do I tell 'puppet apply' that the package is already installed) 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 only change if they need correcting. An 'unless' statement could be used to avoid declaring the package at all in the event that a custom fact. 1. Modules that are supported by Puppet, Inc. 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. Right now I have: exec { 'first command': command => "some command" path => '/usr/bin', notify => Exec ["second command"], } exec {. The value that represents the data type of these values is Type. Puppet exec unless doesn't appear to work how I expect. Teams. The Forge is an online community of Puppet modules submitted by Puppet and community members. ##Development. You can use Puppet variables in an EPP template to customize its output. Puppet has two main ways to declare classes: include-like and resource-like. exe /C tzutil. Since moving to Puppet 5. This means that if a file is currently a directory,. See full list on puppet. 20. The ensure (see ensurable. Mar 25, 2015 at 21:56 @Fr3edom21 if this answer is acceptable, please accept it as the answer. Puppet exec unless doesn't appear to work how I expect. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Best practices with exec is to use onlyif and unless to test for whatever action the exec is supposed to have performed. } Puppet: Conditional exec using unless-option. Puppet Exec with no command attribute. 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. Iteration functions. The pgrep manual page tells us that the exit code for pgrep will be zero (0) only when matching processes are found and it'll return one (1) when there are no matching processes. If none of the cases match, Puppet will do nothing and move on. exec { 'update hostname': command => 'hostname VM01', path => '/usr/bin:/usr/sbin/:/bin:/sbin', unless => '[ "$(hostname)" == "VM01" ]', } You need to. user. Based on that documentation, a when statement was added: - name: add vhost sensu command: rabbitmqctl add_vhost /sensu when: rabbitmqctl list_vhosts | grep sensu. This can be used with bash on Linux,. I don't think there is an exception handling in a programmatic way you would like in Puppet. 5. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Puppet - Check if package is installed, but do not require it. As Forrest already said, it's not what puppet is designed for. If this parameter is set, then this exec will only run if the command has an exit code. If you are using Puppet 3. Puppet File resource runs despite Exec unless. The CentOS/Puppet installation process should already have created a directory called /etc/puppet (If it hasn’t, create it with mkdir /etc/puppet ). where read = 4, write = 2, and execute/search = 1. In your case, it sounds like you want the exec to run only when your file changes. These are command. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. e. In the modified question, the resources involved have such a relationship already. Puppet provides a built-in exec type that is capable of executing commands. Note that Puppet was not really designed to solve automation problems like this one, although using Exec it is possible to do most things anyway. Selector statement. e. . cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. I have a script that really only needs to be run one time on a server, i. 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. That command will always return 0 (true): it just tests whether the given string is nonempty. Problem with "if" is that it expects the file on the puppet server not on the client. Another way to control an exec resource is to add a refreshonly => true attribute. Q&A for work. The command should only be run as a refresh mechanism for when a dependent object is changed. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 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. 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 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 and I'm running into some issues. Juan. 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. Note: PowerShell variables (such as $_) must be escaped in Puppet manifests either using backslashes or single quotes. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. This can be used with bash on Linux,. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. exe /c echo "hello"'. ” There is also a set of values whose data type is “data type.