However, if all you want is to. Classes generally configure large or medium-sized chunks of functionality, such as all of. 1. Running Powershell command directly using Puppet exec resource. See “Case Matching” below for details on how Puppet matches different kinds of cases. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. This can be used with bash on Linux,. Puppet strange behaviour of execs. Related questions. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. 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. Machines receiving task requests must have SSH or. Puppet exec unless doesn't appear to work how I expect. "Unless" statements work like reversed if statements. Puppet: 'creates' does not create. exe /c C:/test. To run an exec task, use the task command, specifying the command to be executed. Puppet attempts to execute directories from /etc/init. exe /c C:/test. One thing that you can do (and I don't recommend) and that is not "puppet way" is following:If you want to specify to take a given action if file exists, if file doesn't exist etc. ps1 script. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. The commands in an Exec resource either have to be fully qualified (i. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false,. As a result, notifications are shown as a change on every Puppet run. supported Adds a new exec provider for executing PowerShell commands. e. We explore practical examples and best practices for handling procedural requirements when we look at the exec resource type in Chapter 5. 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. 5. Do you have reason to think that there's something wrong with. 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. All modules; Supported modules; Modules with tasks; Contribute. Puppet Exec with no command attribute. This page provides a reference guide for Puppet 's built-in types: package, file, service , notify, exec, user, and group. how to ensure puppet exec run on every event triggered? 0. 0 on RHEL 6 and am doing package management via the exec resource. 4. rb in the Puppet source code. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Puppet does not know about the files which are been modified by the shell script. This tells Puppet to run aspnet_regiis. Execute create_resource after everything has finished or after exec has finished. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. Based on that documentation, a when statement was added: - name: add vhost sensu command: rabbitmqctl add_vhost /sensu when: rabbitmqctl list_vhosts | grep sensu. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. The problem is the line when: rabbitmqctl list_vhosts | grep sensu. I have Puppet master 3. Usage. It logs all diagnostic messages during a Puppet run. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. The exit status when you run it directly and the exit status you expect it to return are irrelevant. 2. |>). 1 on CentOS, and Puppet clients 3. Puppet Coding Style - In Puppet, the coding style defines all the standards which one needs to follow while trying to convert the infrastructure on the machine configuration into a code. They take a control expression and a list of cases and code blocks, and. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. supported Adds a new exec provider for executing PowerShell commands. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. You can use expressions almost anywhere a value is required. The logoutput parameter just logs the output to the. 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. On Windows, most exit codes should be integers between 0 and 2147483647. #####unless Runs the exec, unless the command returns 0. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. In your case, the Exec is always successfully applied. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. onlyif and unless in --noop documented. exe and specifying a file path in the command line, be sure to use backslashes. 6. Puppet: How to execute a Exec resource if another Exec resource failed. 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. Unless you tell your exec not to run for some reason or another, it will always run. Q&A for work. 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). To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. You can use the unless parameter to only execute the statement in certain states. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 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. Puppet exec - fails to execute command as user. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. you can check this quickly with the telnet command. Modules that are supported by Puppet, Inc. 1. Puppet strange behaviour of execs. 12 behavior got changed to match the intention. I am using vagrant with puppet to set up virtual machines for development environments. Publish a module; Topics. d/x exists then /bin/true is run (successfully). Puppet: Conditional exec using unless-option. The command can be a simple string, which is executed as-is, or an Array, which is treated as a set of command arguments to pass through. That command will always return 0 (true): it just tests whether the given string is nonempty. Note also that Exec has other parameters that can lead to instances being applied successfully without their commands being run. It is. fail when a file exist in puppet. No find command is run; the test just passes by examination of the argument. I would like to simply set a few environment variables in the . You can use these special values to examine a piece. escape. But, only deploy the scripts when certain file exists, one that would only exist on the first puppet run after build. Unless you tell your exec not to run for some reason or another, it will always run. 3 I am experiencing puppet exit code 1 when running any powershell script that starts or invokes a process. 7. service ntpd stop ntpdate ntp3. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple. This module is particularly helpful if you need to run PowerShell commands but don't know the details about how PowerShell is. Alternately, you can put the PowerShell code. Puppet Development Kit. . 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. 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. Puppet File resource runs despite Exec unless. Only supported on Windows Server 2003 and above, and Windows 7 and above. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. It would be better to explicitly "exit 0" whenever you do not "exit 1". Sorted by: 0. To run an exec task, use the task command, specifying the command to be executed. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Adds a new exec provider for executing PowerShell commands. Let's assume that you can write a find command to list all of your files that you want deleted. 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. But this configuration does not detect when any of the configuration files have been modified outside of puppet. 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 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. 0. Puppet provides a built-in exec type that is capable of executing commands. 0 or later must be installed on the machine from which you are running task commands. I am trying to use code like this: exec { 'example': path => 'C:\Windows\System32', command => 'something', unless => 'reg query "HKEY_LOCAL_MACHINE\Software\My key" /f 5. The db has already been created in the vm, and if it's already been cloned, the count returned from the query gives me something other than a ' 0 ', and the grep because. 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). The baseline measures how long Puppet takes to just start up, so it’s not even executing powershell then. Default: Undefined. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. 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. 1. Project. You can use not filter to get unless like behavior. 0powershell. When evaluated, these tagged expressions can modify text in the template. Puppet noop When Executable does not exist yet. onlyif and unless in --noop documented. 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. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. I want to check if the file exists in the client. 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. The Puppet “exec” resource allows users to run commands and scripts on nodes. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. Rename("new-guest")', unless => 'if (Get-WmiObject. Note that the example uses the unless parameter to make the resource idempotent. exe -NoProfile -NoLogo . Sometimes I want to run a command one time on all servers, e. But it when I try it, it is. 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. properties. require means that the the resource passed to require must be applied before the calling resource. The Win32 APIs define exit. rb file or in the individual test files, and configure Puppet and Bolt for the testing environment. ##Development. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. (2) it is unclear from your description whether the Exec's command is actually run (vs. On reboot, the directory doesn't exist, strangely enough. Create this file only if it does not exist, or Start this windows service unless it’s already running. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. If the query specified in the unless parameter returns one or more records, the main statement is skipped. If the path isn’t set, you must fully qualify the command’s name. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. 2. at deployment time, but figured it would be best to have Puppet manage it. He just built and performed the lead puppet for a Toronto television pilot. One way is to use custom fact but that gets a bit too complicated as it requires ruby knowledge and custom facts execute on each and every server. Sometimes a simple creates isn't enough to determine if an exec should run or not. 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. (2) it is unclear from your description whether the Exec's command is actually run (vs. Sends an arbitrary message, specified as a string, to the agent run-time log. unless => "powershell. 0. puppet exec returned 1 instead of [0] 1. There are a few important parameters to use when writing an exec resource with PowerShell. password is not getting changed to the default password and also. The one thing the exec doesn't need to do is put the service in a started state. Puppet Exec resource to apply only when a File changes. Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. e. However; I would like promote these into our production branch. Assignment operator. refreshonly: Only run the command if the resource is refreshed due to a notify or subscribe metaparameter; cwd: Sets the working directory. 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. exec { 'foobar': command => 'foo | bar', } However, there are occasions where foo fails. unless. Publish a module; Topics. Puppet exec unless doesn't appear to work how I expect. John. Detecting if windows service is already installed using puppet exec. I need puppet to execute a script that is inside an installed app. 2. Connect and share knowledge within a single location that is structured and easy to search. Puppet runs executed on multiple external systems. Puppet strange behaviour of execs. Here is my code, don't worry about variable which is already set in original code. 0. When something isn't builtin to file, I generally just to turn to an puppet exec declaration. 0. ” There is also a set of values whose data type is “data type. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Adds a new exec provider for executing PowerShell commands. This is where refreshonly backfires rather terribly. And as for the title of this question which I originally overlooked. exe -executionpolicy remotesigned -file C:\test. g. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. What is Puppet? | How Puppet Works? | Puppet Tutorial For. , unless you really intend to resolve that path against the working directory. The setuid/setgid/sticky digit is also a. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. This means that if a file is currently a directory,. Adds a new exec provider for executing PowerShell commands. And elsewhere you can add to the parameters for. A statement to determine if the wls_exec must execute. Puppet File resource runs despite Exec unless. So on a fresh installation, a refresh event will be received but the resource will. . Puppet: exec onlyif value is not equal. Backslashes MUST be used in:. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. All modules; Supported modules; Modules with tasks; Contribute. Puppet is an amazingly powerful and flexible tool. e. 1. This can be used with bash on Linux, but with the PowerShell provider , it can run PowerShell on Windows and Linux nodes as well. If /etc/init. 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. But Puppet is quite hard to learn. lst contents. g. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. An example in Puppet 2. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. I can fix this manually. '". The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. You can read more about it here. Q&A for work. This consistency in code and module structure makes it easier to update and maintain the code. On Windows, most exit codes are integers between 0 and 2147483647. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. The issue is, while first two are correctly executed under "user", third command is executed in. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed. PUP-11199. The onlyif parameter is defined as. We need to set setfacl -R -m u:foreman:rwx /etc/dhcp /var/lib/dhcpd via our puppet installer instead of modifying standard UNIX owner and permissions. Resource default for the exec type A resource default statement set default attribute values for a given resource type. Maybe. This means you. Follow answered Jan 12, 2015 at 6:48. In the Puppet language, nearly everything is an expression, including. 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. Your fact could be something like this: #!/bin/bash if [ -f /my/file. Sequence of Execs in Puppet. In the modified question, the resources involved have such a relationship already. 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. Important: This API has severe problems — most notably, functions that use it will leak between environments. The onlyif parameter is defined as. Depending on your client's platform you can use ACLs to grant varied permissions to more than one group or user. the unless attribute provides a condition. Ben is the Community and DevRel lead at Puppet, where he's been scared by production Puppet code for the last decade. 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. All groups and messages. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. Node examples. ” These values represent the other data types. Puppet modules to install and manage Oracle databases, Oracle Weblogic and Fusion Middleware, IBM MQ, IBM Integration Bus and other enterprise-grade software. Default: Undefined. 3 puppet exec returned 1 instead of [0] 0 Puppet strange behaviour of execs. 0. 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. 0. Puppet: deploy file unless it exists. 6. <%= EXPRESSION %> — Inserts the value of a single expression. 1. Their exit codes convey whether to proceed with running the main command. You can validate that a manifest's syntax is correct by using the command puppet parser validate. 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. exec command unless directory exists in puppet. November 8, 2023. A quick reference of syntax examples for the Puppet language. 2. 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. Improve this answer. It is a limitation of the underlying system. If none of the cases match, Puppet will do nothing and move on. 04; In Puppet, the combined configuration to be applied to a host is called a catalog, and the process of applying it is called a run. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. This module is particularly helpful if you need to run PowerShell commands but don't know the details about how PowerShell is executed, because you can run PowerShell. Install Puppet Agent on bulk windows server. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. Puppet: Exec from class when Exec from another class is successful. Modules that are supported by Puppet, Inc. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. asked Apr 1, 2022 at 20:47. Since I don't have Puppet 4. Node definition. notify. So in. ##Limitations. If you remove the parameter it will also fail if the regular execution policy is set to Restricted. Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. e. 0\powershell. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. but the command fails. 1. group. Puppet Exec Resource. 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. yml] &. Puppet provides a built-in exec type that is capable of executing commands. 1. Glossary. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. If I try creating it as my process user, I get permission denied. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. 0. d/ Prevents Puppet from considering. Detecting if windows service is already installed using puppet exec. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. Discover. exe /s "$ {timezone}"", unless => "cmd. I would like to add a number of control gates into my manifest via onlyif and unless. Adds a new exec provider for executing PowerShell commands. 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. 0. Puppet : How to use "defined" type as requirement inside exec. Explanation. So if you put an exec without conditions, it will execute the command on every run. The command should only be run as a refresh mechanism for when a dependent object is changed. exe /c echo "hello"'. To run tasks with Puppet Bolt, Bolt 1. Include-like behaviorAll groups and messages. There are times when you have a complex script that you just need to get into configuration management. The issue isn't that the package doesn't install, but rather that apt automatically starts the. That will run every time puppet runs. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. com I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. 2. This allows you to do more complex task operations, such as. All modules; Supported modules; Modules with tasks; Contribute. TJL. pp file. It would be better to explicitly "exit 0" whenever you do not "exit 1". 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. Puppet check if a nagios resource exists. Puppet advanced default params. 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. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. I am wondering whether it is possible to have Puppet only stop and disable a Windows service if it exists. In this blog post, we'll make it simple with definitions and examples to explain the basics of platform engineering vs. 0 through 3. 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. DevOps. If the file does not exist then the Exec succeeds without running /bin/true. Taking the baseline time away, the old module took 20 seconds (32 - 12) and the new module took 10 seconds (22 - 12). Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. Create exec resources with metadata to ensure it is idempotent. Since Puppet 2. This means a resource with noop => false will be changed if necessary, even when. As Forrest already said, it's not what puppet is designed for. 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. You can read more about it here.