Hot Network Questions tcpdump -vvv is not verbose enough In which situations or societies do people not take turns to. h ), and the sub-processes it spawns. If none of the cases match, Puppet will do nothing and move on. I want to check if the file exists in the client. 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. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Sometimes I want to run a command one time on all servers, e. If you declare a resource, it is expected that puppet brings your machine to that state (installed package) and if not, it will fail automatically. 1 on CentOS, and Puppet clients 3. No find command is run; the test just passes by examination of the argument. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. exe"", path. That's what the ticket is about. 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. 1 Unless issue with Puppet. Note: PowerShell variables (such as $_) must be escaped in Puppet manifests either using backslashes or single quotes. You can use the unless parameter to only execute the statement in certain states. 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. Running Powershell command directly using Puppet exec resource. command => '/path/to/script. Another way to control an exec resource is to add a refreshonly => true attribute. Teams. The issue is, while first two are correctly executed under "user", third command is executed in. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. Puppet: Exec from class when Exec from another class is successful. 1. When you use any of the four so-called metaparameters for relationships in Puppet - those being: require , before , subscribe & notify - you tell Puppet that you want the application. I would like to simply set a few environment variables in the . Puppet provides a built-in exec type that is capable of executing commands. The command should only be run as a refresh mechanism for when a dependent object is changed. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. 9]: FAILED! => {"failed": true, "msg": "The conditional check 'rabbitmqctl. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. txt ]; then echo "my_fileexists=yes" else echo "my_filexists=no" fi. 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. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. silent way to import registry file via puppet module. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 1. 7. 0 Output on one command cause next one to fails. JULY . We explore practical examples and best practices for handling procedural requirements when we look at the exec resource type in Chapter 5. An exec resource, which starts a powershell script, which starts a PowerShell process, which starts a CMD process, which runs a batch file (with an invalid path), which runs another batch file, which processes some kind of response file. Only supported on Windows Server 2003 and above, and Windows 7 and above. Puppet running exec. To use commands with pipe |, you must use the shell builtins work around with cmd. fail when a file exist in puppet. puppet exec command issue. Let’s take a look there: ls -la /etc/puppet. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. # Setting Powershell Execution Policy to unrestricted exec { 'Set PowerShell execution policy unrestricted': command => 'Set-ExecutionPolicy Unrestricted', unless. I'm really confused about this, it seems like puppet can. And, since that file will no longer exist after the first reboot, subsequent puppet runs would NOT deploy these 2 scripts unless the host was rebuilt. Puppet exec unless doesn't appear to work how I expect. To use the BoltSpec library functions, include them in either the spec_helper. 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. Manage local groups . rb in the Puppet source code. Among them, notice (), info (), and debug () seem the. For example, command => 'cmd. It doesn't even cause clutter in the logs! See also. . 0 or later must be installed on the machine from which you are running task commands. Try again and this time show the failure. Another way to control an exec resource is to add a refreshonly => true attribute. supported Adds a new exec provider for executing PowerShell commands. 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. 12 behavior got changed to match the intention. d directory, then puppet agents pull it down and execute it on every run and provide the fact. The Puppet Design Philosophy Before we begin to explore best practices with Puppet, it’s valuable to understand the reasoning behind these recommendations. 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. you can check this quickly with the telnet command. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. 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. When I apply the manifest for the first time, it works correctly. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. You may need to reboot the system after enabling if SELinux was. you have no choice (to my knownledge) currently than to use the exec resource with creates + onlyif or unless directives. First I would like to use booleans as defined in Hiera [ auto lookup function ]. 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 CentOS/Puppet installation process should already have created a directory called /etc/puppet (If it hasn’t, create it with mkdir /etc/puppet ). 20. Puppet: exec onlyif value is not equal. You can also set variables within the manifest, which can change the. As an example I have a powershell script that opens notepad:. every time Puppet's agent apply its manifests), even when the onlyif condition is false, unlike Exec['install-newrelic-apt-key']. If /etc/init. Googling unless ansible showed this document about when. And if you do intend to resolve it as a. The command should only be run as a refresh mechanism for when a dependent object is changed. 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. In conjunction with Facter, which makes details of a machine available as variables, this lets you write Puppet code that flexibly accommodates different platforms, operating systems. You should never use this API unless you absolutely must support Puppet 3. Modules that are supported by Puppet, Inc. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 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 exec unless doesn't appear to work how I expect. (2) it is unclear from your description whether the Exec's command is actually run (vs. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. Tasks use Scripts to execute them on remote machines. 0. 1. However, I only want to apply the 'netsh advfirewall reset' exec if firewall rules other than what I have specified in Hiera exist. Puppet Exec Resource. This tells Puppet to run aspnet_regiis. 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. He just built and performed the lead puppet for a Toronto television pilot. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. Connect and share knowledge within a single location that is structured and easy to search. PUP-11199. If. Usage. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. 2. But it when I try it, it is. However; I would like promote these into our production branch. 2. 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. service ntpd stop ntpdate ntp3. Scripts file serving mount. 1', } Puppet supports if and unless statements, case statements, and selectors. See provider/exec. See full list on puppet. Description. Puppet strange behaviour of execs. Share. Using onlyif allows you to use the return value of one or more commands as your. The service will detect it is not running and start itself if required. Puppet File resource runs despite Exec unless. 1. if you want execute a powershell file:. Shell built-ins. But it is certainly worth verifying the type and value of your variable. Assignment operator. a sysadmin might manually run it. They take a control expression and a list of cases and code. g. This means that if a file is currently a directory,. And after that, run puppet agent with pluginsync enabled, and you can use custom type like this:. 0. You can read more about it here. And as for the title of this question which I originally overlooked. 1 Answer. Node examples. Puppet File resource runs despite Exec unless. ##Development. All groups and messagesCreate A Puppet Configuration File. As for a "more intelligent way of excluding", I think you need to couch the question differently. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. Puppet can execute binaries (exe, com, bat, etc. supported. g. exec { ‘SETHELLO’: command => ‘Add-Content -Path c: est. In Puppet, when using the exec resource, you can specify an "unless" attribute. Default: Undefined. e. Puppeteer Script Works Local But Not On EC2 AWS. 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. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. Publish a module; Topics. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. 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. 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. 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. Backslashes MUST be used in:. exe /c C:/test. 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. Only supported on Windows Server 2003 and above, and Windows 7 and above. Adds a new exec provider for executing PowerShell commands. This is where refreshonly backfires rather terribly. All groups and messagesConditional execution of puppet defined resource type through exec. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. 12, but from 5. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. On Windows, most exit codes are integers between 0 and 2147483647. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. Larger exit codes on Windows behave inconsistently across different tools. 2 Handling names with spaces. 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. But this configuration does not detect when any of the configuration files have been modified outside of puppet. Puppet advanced default params. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. I am struggling with how to pass a puppet variable through to powershell. 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. Resource default for the exec type A resource default statement set default attribute values for a given resource type. The difference between platform engineering and DevOps is pretty nuanced. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. 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. It logs all diagnostic messages during a Puppet run. For example, to view the free disk space of a host, run: With. Learn more about TeamsUnless puppet supports escaping somehow. You could use for instance (see reference doc)An exec will always run unless it has something to limit it. Iteration functions. Puppet Exec resource to apply only when a File changes. Include-like behaviorAll groups and messages. So on a fresh installation, a refresh event will be received but the resource will. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Adds a new exec provider for executing PowerShell commands. You can use not filter to get unless like behavior. You can read more about it here. Since I don't have Puppet 4. , for example, the Exec resource being. See the Puppet Type Reference for the exec resource and look for unless and onlyif. 1 Answer. |>). Detecting if windows service is already installed using puppet exec. The Win32 APIs. #####unless Runs the exec, unless the command returns 0. powershell conditional IsNullorEmpty not working as planned. So, in order to avoid this I am adding the refreshonly parameter as follows. Something like this should work: - name: Get rabbitmq vhosts. 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. 0. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. if statement, using expressions and facts. Exec type's onlyif and unless in --noop documented. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. Follow answered Jan 12, 2015 at 6:48. } Puppet: Conditional exec using unless-option. Puppet FuturePuppet is a configuration management tool which helps you to build the infrastructure and maintain its state. So if you put an exec without conditions, it will execute the command on every run. e. 2. {"payload":{"allShortcutsEnabled":false,"fileTree":{"manifests":{"items":[{"name":"fcontext","path":"manifests/fcontext","contentType":"directory"},{"name":"boolean. Puppet is an amazingly powerful and flexible tool. There are times when you have a complex script that you just need to get into configuration management. 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. Chaining arrows. I will show how these work in the example below. 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,. The 'unless' and/or 'ifonly' commands must run every time, though. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. You can use Puppet variables in an EPP template to customize its output. I will show how these work in the example below. Step Zero: Enable SELinux! Enabling SELinux is done by including the site_selinux class somewhere in your Puppet configuration. I will show how these work in the example below. 1. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. The Windows module pack is a group of modules available on the Forge curated to help you complete common Windows tasks. The documentation for Exec's onlyif tag says this: onlyif The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. The command is only executed if the Guest account does not exist, as indicated by unless returning 0. require means that the the resource passed to require must be applied before the calling resource. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 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. The logoutput parameter just logs the output to the. The logoutput parameter just logs the output to the. The statement itself is simple but the class doesn't contain any built-in conditional checks (similar to "unless =>" in exec class). Puppet is an open-source configuration management tool from Puppet Labs. If the resource that you want to apply conditionally does not have any built-in conditional checks that serve the purpose, then Puppet conditional statements such as if and case are the most likely options. Resource default for the exec type A resource default statement set default attribute values for a given resource type. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. 2. 0. Puppet reboot in stages. Puppet does not know about the files which are been modified by the shell script. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. Puppet noop When Executable does not exist yet. unless => "powershell. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. Puppet File resource runs despite Exec unless. --Puppet::Type. Adds a new exec provider for executing PowerShell commands. Q&A for work. Adds a new exec provider for executing PowerShell commands. There are a number of parameters you can set. Learn more See the exec documentation for the command, unless, and onlyif. If executed as root, the lxc-info checks for the name among the root containers. Puppet exec - fails to execute command as user. 2) that no other resource is set to 'notify' Exec ['command_two']. 0 a new feature "relationship syntax" was introduced. 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. 0. Then, you can install the Nuget package via the package resource in Puppet. 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. An example in Puppet 2. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. 2. 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. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. Note: Data sources can use the special lookup_options metadata key to request a specific merge behavior for a key. Need to copy a file via puppet only if a Windows MSI package is not installed. puppet seems to execute the command in a way that means it never runs successfully. 0. Right now, I have the bit below for certain nodes:open-vm-tools. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. Problem with "if" is that it expects the file on the puppet server not on the client. ##Limitations. 1st - 2nd Smithers Midsummer Festival Smithers BC. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Modules that are supported by Puppet, Inc. exe and specifying a file path in the command line, be sure to use backslashes. Puppet 3 is no longer supported, but we. instances method defined) a parameter that can ensure the resource's absence; When both these conditions are met, Puppet can purge the resources it doesn't explicitly. 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. Conditional statement examples. Maybe. To run an exec task, use the task command, specifying the command to be executed. Expressions are statements that resolve to values. Puppet exec unless doesn't appear to work how I expect. However currently I am struggling to figure out how to do this. puppet exec returned 1 instead of [0] 1. , unless you really intend to resolve that path against the working directory. g. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n $ {lxcname} >/dev/null. 1. That is, unless you can use purging with them. Find can exclude Named Pipes:-type c File is of type c: b block (buffered) special c character (unbuffered) special d directory p named. When a lambda requires extra information, pass it to a function that provides the information and to evaluate the code, possibly multiple times. This means you. password is not getting changed to the default password and also chage. loki77. refreshonly: Only run the command if the resource is refreshed due to a notify or subscribe metaparameter; cwd: Sets the working directory. Manage local groups . 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). Modules. asked Apr 1, 2022 at 20:47. All modules; Supported modules; Modules with tasks; Contribute. Detecting if windows service is already installed using puppet exec. To run an exec task, use the task command, specifying the command to be executed. Selector statement. sh', onlyif => systemctl service_trendmicro, # which system should return. In this case specifying a directory is done by setting ensure to (unsurprisingly) directory. 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. execute (command, options = NoOptionsSpecified) ⇒ Puppet::Util::Execution::ProcessOutput (also: util_execute) Executes the desired command, and return the status and output. Since I don't have Puppet 4. You can set different levels of permissions for different users or groups, allowing them to read, change, or even delete. 0. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. refresh: Command to execute if the resource is refreshed due to a notify or subscribe metaparameter. Puppet modules to install and manage Oracle databases, Oracle Weblogic and Fusion Middleware, IBM MQ, IBM Integration Bus and other enterprise-grade software. 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. 1. Alternative 1: create a bash script: ugly Exec resources and temp files. exe /c C:/test. ##Development. if statement, with in expression. Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). I am using vagrant with puppet to set up virtual machines for development environments. Expand. 0. Adding a / to the end of a file name isn't enough to tell puppet to. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. g. Topics. } @choover Unfortunately that won't work. 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. Usage. Execute installers from shared (samba) folder instead of copy it first to agent system does not solve the issue. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands in Puppet without the module. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. Modules. Expressions can be compounded with other expressions, and the entire combined expression resolves to a single value. 2. Apart from all that, it is good practice with Puppet to actually deploy wrapper scripts that your exec resources. 6. TJL. rb instead of including them in the individual test files. Let's also assume that you're puppet module knows when do delete these files. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. 4. Try adding -Scope LocalMachine to your unless statement. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. Puppet can take an existing PowerShell Module and build a Puppet module out of it. 0. This means that if a file is currently a directory,. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. That command will always return 0 (true): it just tests whether the given string is nonempty. g. Please qualify the command or specify a path. Share Puppet can execute binaries (exe, com, bat, etc.