if statement, using expressions and facts. Your fact could be something like this: #!/bin/bash if [ -f /my/file. The onlyif parameter is defined as. Puppet File resource runs despite Exec unless. onlyif and unless in --noop documented. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Puppet - Check if package is installed, but do not require it. I want to check if the file exists in the client. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n $ {lxcname} >/dev/null. If you are using Puppet 3. This runs the first-exec, and unless /var/exists it runs the second-exec. 5. You may need to reboot the system after enabling if SELinux was. 3. 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. Learn more about TeamsIt's just not something you can do with vcsrepo unless you can override path (you can in exec). To use sudo non-interactively, the invoking user needs a NOPASSWD: entry in sudoers %wheel ALL=(fred) NOPASSWD: /usr/bin/echo "hola dan" Then. For example, to view the free disk space of a host, run: With. Best practices with exec is to use onlyif and unless to test for whatever action the exec is supposed to have performed. Share. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n ${lxcname} >/dev/null. exec. exe -ExecutionPolicy ByPass -command "here any command on powershell ""} On Thursday, October 9, 2014 4:22:14 PM UTC-3, Paul Ponzeka. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. 0. The Puppet Design Philosophy Before we begin to explore best practices with Puppet, it’s valuable to understand the reasoning behind these recommendations. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. 2 but are only using architecture-appropriate. Long answer. The Win32 APIs. {"payload":{"allShortcutsEnabled":false,"fileTree":{"manifests":{"items":[{"name":"fcontext","path":"manifests/fcontext","contentType":"directory"},{"name":"boolean. Exec type's onlyif and unless in --noop documented. 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. Follow#####unless Runs the exec, unless the command returns 0. 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. if you want execute a powershell file:. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. Validate your manifest with puppet parser validate. 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. 0 on RHEL 6 and am doing package management via the exec resource. 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. Platform Engineering. As a result, notifications are shown as a change on every Puppet run. Using onlyif allows you to use the return value of one or more commands as your. If you do need to do it via say the exec resource, then @16c7x's statement is correct. '". if statement, with in expression. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. This part of the series will walk you through the process of automating server provisioning using Puppet, a popular configuration management tool capable of managing complex infrastructure in a transparent way, using a master server to orchestrate the configuration of the nodes. So on a fresh installation, a refresh event will be received but the resource will. 0. The value that represents the data type of these values is Type. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. Plans are sets of tasks that can be combined with other logic. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. Here is the service file springboot. The issue is, while first two are correctly executed under "user", third command is executed in. I am struggling with how to pass a puppet variable through to powershell. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. 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. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. Q&A for work. at deployment time, but figured it would be best to have Puppet manage it. 163k 8 82 159. 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/. 2. 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. , for example, the Exec resource being. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. silent way to import registry file via puppet module. 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. 12, but from 5. Unless you tell your exec not to run for some reason or another, it will always run. PUP-11199. Puppet provides a built-in exec type that is capable of executing commands. exe invocation as the command. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. There are a few important parameters to use when writing an exec resource with PowerShell. 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. Googling unless ansible showed this document about when. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. Despite the -ExecutionPolicy parameter the PowerShell command will fail if execution is restricted via group policy. My approach is to build an array (or list) of only the titles in hiera and then iterate over them in a PowerShell 'only if' or 'unless'. 1. 2. Puppet is an amazingly powerful and flexible tool. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. In your case, it sounds like you want the exec to run only when your file changes. 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. ) I am running Puppet v3. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. unless: A shell command that is run as a test to determine if the command should not run. Puppeteer Script Works Local But Not On EC2 AWS. So in. You can also set variables within the manifest, which can change the. Puppet Exec with no command attribute. November 8, 2023. 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). I am new to Puppet, and I am trying to install a file if a package is installed. Puppet provides a built-in exec type that is capable of executing commands. 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. 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. 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. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. We will focus on the language terminology, syntax and. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. . The service will detect it is not running and start itself if required. Is this the best way to do this?. domain. properties. 0. If you choose to execute PowerShell scripts using the default Puppet exec provider on Windows, you must specify the remotesigned execution policy as part of the powershell. Puppet is an open-source configuration management tool from Puppet Labs. ##Limitations. d/pgsql. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . Certainly, Notify is right out. Puppet File resource runs despite Exec unless. Understand the syntax and function of the if, unless, case, and selector statements. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. Puppet File resource runs despite Exec unless. exec { 'nagios-permissions': command => "/usr/bin/chown -R nagios:nagios $ {confdir}", onlyif. 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. Puppet running exec before other commands. 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. exe only when the aspnet_banking_app is created or changed. When a lambda requires extra information, pass it to a function that provides the information and to evaluate the code, possibly multiple times. 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. If this parameter is set, then this exec will only run if the command has an exit code. 1. Your best bet is to run the action as a script and set up the PATH inside the actual script. 0. So, in order to avoid this I am adding the refreshonly parameter as follows. Resource default for the exec type A resource default statement set default attribute values for a given resource type. I assume the default behavior of the parser is such that if it receives an array. how do I tell 'puppet apply' that the package is already installed)You are misunderstanding the 'require' line and the nature of relationships in Puppet, and also how Puppet uses the return code of the command executed in an Exec. Hot Network QuestionsPuppet avoids destroying directories unless the force attribute is set to true. 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. Chaining arrows. 0. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. exe /C: exec { 'configure_timezone': command => "tzutil. 1. Following code updating file /etc/sysctl. 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. You can validate that a manifest's syntax is correct by using the command puppet parser validate. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. Teams. Share. The baseline measures how long Puppet takes to just start up, so it’s not even executing powershell then. Puppet: Exec from class when Exec from another class is successful. 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. 1. Sorted by: 18. 1. ), and can log the child process output and exit status. 1. 1. Default: Undefined. 0powershell. Modules. Adds a new exec provider for executing PowerShell commands. Follow answered Jan 12, 2015 at 6:48. As a suggestion:I am using Puppet installed with the powershell module. 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. 1 run Exec only if another Exec ran. Using virtual box and a vagrant bas. I am creating a group named jboss in puppet and then using exec to run a sed command to make some changes in /etc/group file afterwards. 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. e. } Puppet: Conditional exec using unless-option. 1. 1. This consistency in code and module structure makes it easier to update and maintain the code. However, I only want to apply the 'netsh advfirewall reset' exec if firewall rules other than what I have specified in Hiera exist. 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. Puppet File resource runs despite Exec unless. Unless you tell your exec not to run for some reason or another, it will always run. After changing topology strategy, cassandra should rebuild keyspace - this is where puppet comes. d/x exists then /bin/true is run (successfully). From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. The Puppet “exec” resource allows users to run commands and scripts on nodes. Puppet running exec. require means that the the resource passed to require must be applied before the calling resource. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. The Puppet exec will not run unless the "unless" command exits with status 0. I need puppet to execute a script that is inside an installed app. 1. 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. exec { ‘SETHELLO’: command => ‘Add-Content -Path c:\test. 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. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Sep 13, 2012 at 15:51. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. That will run every time puppet runs. 2 install on Ubuntu 18. This can be used with bash on Linux,. If the file does not exist then the Exec succeeds without running /bin/true. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. exe /C tzutil. This page provides a reference guide for Puppet 's built-in types: package, file, service , notify, exec, user, and group. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. Explanation. 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. By setting the hiera value selinux::mode: 'enforcing', that will ensure SELinux is enabled (it will default to targeted mode on CentOS). Unless you are sharing with the world, you don’t need most. Puppet exec unless doesn't appear to work how I expect. Expand. As a result, the chown in the main command always is run, and that is reported. In any given case, you should use whichever approach makes sense. If executed as root, the lxc-info checks for the name among the root containers. When you share a folder on your computer, other users on the same network can access the files and folders inside it. That is always handled by the service resource. 2. where read = 4, write = 2, and execute/search = 1. How do I make a puppet class dependent on all of the resources it defines? 1. 0. E. Improve this answer. Only supported on Windows Server 2003 and above, and Windows 7 and above. Note: Data sources can use the special lookup_options metadata key to request a specific merge behavior for a key. Modules that are supported by Puppet, Inc. John. Let's assume that you can write a find command to list all of your files that you want deleted. Puppet for Windows and Powershell Recipes. The Forge is an online community of Puppet modules submitted by Puppet and community members. 4. Puppet strange behaviour of execs. I am trying to set some powershell inline cmdlets within puppet recipes in order to install other msi packages and powershell scripts. Note also that Exec has other parameters that can lead to instances being applied successfully without their commands being run. 1 Answer. The whole idea of adding this step is to check and execute the command- makeswap only if the swap is not in place. exe /c echo "hello"'. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. Yes, you'd put a script into your modules path under a facts. They take a control expression and a list of cases and code blocks, and. . 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. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. And after that, run puppet agent with pluginsync enabled, and you can use custom type like this:. This means you. exe; Backslashes only. So the "cwd" now impacts the path of the "onlyif". The command should only be run as a refresh mechanism for when a dependent object is changed. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. All groups and messages. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. Load 7 more related questions Show fewer. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. In the modified question, the resources involved have such a relationship already. The ordering arrow is a hyphen and a greater-than sign ( -> ). Assignment operator. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. It is not possible to use bash here. Adds a new exec provider for executing PowerShell commands. 3. What is Puppet? | How Puppet Works? | Puppet Tutorial For. Tasks use Scripts to execute them on remote machines. 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. This is a textbook case where you should write the test first, and the code after. Puppet: exec onlyif value is not equal. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. I'm really confused about this, it seems like puppet can. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. ##Limitations. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. In the Puppet language, nearly everything is an expression, including. In the code that Womble shows, there are no variables, so all the " should instead be '. telnet < puppetmaster ip address dns name> 8140. 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. Contribute to tarunmunjal/puppetlabs-powershell development by creating an account on GitHub. 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. If a manifest has no syntax errors, the tool outputs nothing. The Windows module pack is a group of modules available on the Forge curated to help you complete common Windows tasks. Puppet FuturePuppet is a configuration management tool which helps you to build the infrastructure and maintain its state. Thus, a package can not both be installed at a particular version and marked held using dpkg. If it always returns a false (non-zero) exit code then the two. Install Puppet Agent on bulk windows server. 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. Here's an example: @user { 'foo': groups => ['somegroup'], membership => minimum, } Then realize that virtual user with then collection syntax: User <| title == foo |>. exe create MyService start= auto binPath= "C:path oyour. Puppet 3 is no longer supported, but we. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. Bolt docs. Tim Gosley’s four decades in puppetry include a wide spectrum of projects. Puppet PowerShell Execution. -- Peter Bukowinski. = (assignment) Expand. First, change the require arrow to a notify arrow, from -> to ~>. Ensure directory tree exists. Puppet Exec resource to apply only when a File changes. Puppet Exec tag onlyif troubles. onlyif and unless in --noop documented. That command will always return 0 (true): it just tests whether the given string is nonempty. The issue is, while first two are correctly executed under "user", third command is executed in. On Windows, most exit codes are integers between 0 and 2147483647. Puppet provides a built-in exec type that is capable of executing commands. This module adds a powershell provider to the exec type, which enables all of the exec parameters, such as creates, onlyif, unless, etc. powershell conditional IsNullorEmpty not working as planned. The second one unzips it. 0 and above would look like this: exec { "apt-update": command => "/usr/bin/apt-get update" } Exec["apt-update"] -> Package <| |> Every time a package command is executed, the dependency (in our case 'apt-update') will be triggered fist. It is a limitation of the underlying system. 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. Selector statement. Detecting if windows service is already installed using puppet exec. In your case, the Exec is always successfully applied. All modules; Supported modules; Modules with tasks; Contribute. If executed as root, the lxc-info checks for the name among the root containers. 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. 2. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. 2. 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. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. Other built-in types. As for a "more intelligent way of excluding", I think you need to couch the question differently. Expressions are statements that resolve to values. 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. 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). Please qualify the command or specify a path. 2. But it is certainly worth verifying the type and value of your variable. If the query specified in the unless parameter returns one or. 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. 1. Juan. command => '/path/to/script. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Share Puppet can execute binaries (exe, com, bat, etc. Puppet Exec resource to apply only when a File changes. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. 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. 1. txt 2>&1. Improve this answer. Puppet: Conditional exec using unless-option. 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/. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. 2. "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 ). 0. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. You could use for instance (see reference doc)An exec will always run unless it has something to limit it. You can use Puppet variables in an EPP template to customize its output. "Unless" statements work like reversed if statements. 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. Adds a new exec provider for executing PowerShell commands. how to ensure puppet exec run on every event triggered? 0. g. Setting the umask only has effect within the process that does it (see umask in sys/stat. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. There are times when you have a complex script that you just need to get into configuration management. you can check this quickly with the telnet command. 1. See full list on puppet. Welcome to the Puppet CookBook. service ntpd stop ntpdate ntp3. puppet exec command issue. 1. The CentOS/Puppet installation process should already have created a directory called /etc/puppet (If it hasn’t, create it with mkdir /etc/puppet ). These are command. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. Now that Puppet is installed and ready to run, it’s time to create a Puppet configuration. Puppet does not know about the files which are been modified by the shell script.