Puppet provides a built-in exec type that is capable of executing commands. You can use expressions almost anywhere a value is required. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. #####unless Runs the exec, unless the command returns 0. Puppet is an amazingly powerful and flexible tool. Puppet does not know about the files which are been modified by the shell script. Execute installers from shared (samba) folder instead of copy it first to agent system does not solve the issue. Iteration features are implemented as functions that accept blocks of code ( lambdas ). If executed as root, the lxc-info checks for the name among the root containers. In the modified question, the resources involved have such a relationship already. Adds a new exec provider for executing PowerShell commands. The command parameter is the PowerShell code you want to run on your node. 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. Q&A for work. 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. Modules. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platformsTechnically, in fact, you cannot do so: Puppet will interpolate the variable's value into the Exec resource's catalog representation, so there is no variable left by the time the catalog is applied, only a literal. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. ;) – ferventcoder. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. 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. The . In this blog post, we'll make it simple with definitions and examples to explain the basics of platform engineering vs. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. Puppet have a defined resource fail if a variable is set to undef. Iteration functions. in. And after that, run puppet agent with pluginsync enabled, and you can use custom type like this:. telnet < puppetmaster ip address dns name> 8140. Modules that are supported by Puppet, Inc. 3 I am experiencing puppet exit code 1 when running any powershell script that starts or invokes a process. how to ensure puppet exec run on every event triggered? 0. In addition I need to run only if it detects an older version of the and is not on a certain server and then install the new version. Only supported on Windows Server 2003 and above, and Windows 7 and above. You can validate that a manifest's syntax is correct by using the command puppet parser validate. Platform Engineering. Over the years of using puppet I've noticed that people often come up with the same kind of. Puppet - Not able to find a declared class. 0. STILL REALLY WEIRD, but ok. 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. 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. I would like to add a number of control gates into my manifest via onlyif and unless. I am wondering whether it is possible to have Puppet only stop and disable a Windows service if it exists. Project. The onlyif and 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. The exec resources will only refresh themselves when they receive a notification. puppet-modules; puppet-motd; puppet-ntp; puppet-perl; puppet-php; puppet-ssh; puppet-timezone; python-cloudlb; rackspace-monitoring-agent-plugins;. Understand the syntax and function of the if, unless, case, and selector statements. exec { "Change status and start-up of Win service": command => 'C:WindowsSystem32WindowsPowerShellv1. Puppet Exec resource to apply only when a File changes. Teams. Detecting if windows service is already installed using puppet exec. Taking the baseline time away, the old module took 20 seconds (32 - 12) and the new module took 10 seconds (22 - 12). 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. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. All modules; Supported modules; Modules with tasks; Contribute. Puppet File resource runs despite Exec unless. Thus:I only want to execute that if the hostname is not what it should be: exec { 'update hostname': command => 'sudo hostname VM01', unless =>. Depending on the complexity of the script, and if you want to run it with tools other than Puppet, I'd generally create it as a file-on-disk with a file type, then have an exec run the scripts. To run an exec task, use the task command, specifying the command to be executed. TJL. Usage. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. . The command parameter is the PowerShell code you want to run on your node. 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. NOTE: This page was generated from the Puppet source code on 2019-09-06 09:16:04 -0700 exec Attributes Providers Description Executes external commands. 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. Puppet advanced default params. So for your example, it would probably be better to extend the exec to add an unless or onlyif parameter, so the command only runs if the database doesn't already exist. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. 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. exe -executionpolicy remotesigned -file C:\test. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. loki77. ” There is also a set of values whose data type is “data type. exe -ExecutionPolicy ByPass -command "here any command on powershell ""} On Thursday, October 9, 2014 4:22:14 PM UTC-3, Paul Ponzeka. 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 ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. 1. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. Hiera supports booleans, and always has done so -- or at least, it is so documented. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. Share. Problem with "if" is that it expects the file on the puppet server not on the client. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . Sort by Year. I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. – 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. This tells Puppet to run aspnet_regiis. That will run every time puppet runs. yml] &. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. Modules. require means that the the resource passed to require must be applied before the calling resource. Service ['x'] will be applied either way, but if the physical service is already in its target state (stopped), then Puppet won't take any. supported Adds a new exec provider for executing PowerShell commands. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. They take a control expression and a list of cases and code blocks, and. 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. "Unless" statements work like reversed if statements. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. 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. 0. Wow. 1', } Puppet supports if and unless statements, case statements, and selectors. Puppet strange behaviour of execs. However currently I am struggling to figure out how to do this. fail when a file exist in puppet. Adds a new exec provider for executing PowerShell commands. JULY . 2. 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. h ), and the sub-processes it spawns. Sorted by: 0. ps1', } Puppet uses the same. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Puppet: Conditional exec using unless-option. I want to check if the file exists in the client. Your best bet is to run the action as a script and set up the PATH inside the actual script. ora_exec {"drop table application_users@sid": username => 'app_user', password => 'password,' } This statement will execute the sql statement drop table application_users on the instance names instance. When I apply the manifest for the first time, it works correctly. 0. exec { 'Make sure frob is installed': command => 'apt-get install -y frob', unless => 'frob --version', } Ansible's command module has a "creates" option that looks for a file, but I don't. I am trying to set some powershell inline cmdlets within puppet recipes in order to install other msi packages and powershell scripts. By default, Puppet returns the first value it finds, but it can also continue searching and merge all the values together. refreshonly: Only run the command if the resource is refreshed due to a notify or subscribe metaparameter; cwd: Sets the working directory. Conversations. supported. Puppet: How to execute a Exec resource if another Exec resource failed. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. 2. Puppet: 'creates' does not create a new file. properties. 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. 3. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . password is not getting changed to the default password and also chage. For example, to view the free disk space of a host, run: With. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. Puppet includes two Ruby APIs for writing custom functions. the unless attribute provides a condition. The commands in an Exec resource either have to be fully qualified (i. Here is my code (Puppet): exec { 'Download mediawiki to temp': cwd. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. It is a limitation of the underlying system. 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. 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. How to set environment variables in Ubuntu OS using Puppet. But it is certainly worth verifying the type and value of your variable. notify is set on the user, and refreshonly is set on the exec. 163k 8 82 159. ##Limitations. The second one unzips it. Which it looks like it doesn't. a sysadmin might manually run it. . The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Puppet can take an existing PowerShell Module and build a Puppet module out of it. 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. Examples An if statement evaluates the given condition and, if the condition resolves to true, executes the given code. Puppet exec unless doesn't appear to work how I expect. 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. ps1 script. Shell built-ins. onlyif and unless in --noop documented. As a suggestion:I am using Puppet installed with the powershell module. John. 0. How to pass multiple values in exec command resource in puppet? 0. 0, to 5. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. This can be used with bash on Linux,. Puppet: Conditional exec using unless-option. supported Adds a new exec provider for executing PowerShell commands. Puppet check if a nagios resource exists. 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. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. 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. How do I make make puppet module break if condition not met. Need to copy a file via puppet only if a Windows MSI package is not installed. Machines receiving task requests must have SSH or. run this on your node -. Puppet exec unless doesn't appear to work how I expect. Rename("new-guest")', unless => 'if (Get-WmiObject. 00 GiB'and $::facts['processorcount'] >= 2 and Exec['port_connectivity'] condition was successful. 1. 168. What is Puppet? | How Puppet Works? | Puppet Tutorial For. 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. 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. 17 also improves the way typed class parameters are checked. Puppet should then run two commands only once. Puppet File resource runs despite Exec unless. Ben is the Community and DevRel lead at Puppet, where he's been scared by production Puppet code for the last decade. Puppet provides a built-in exec type that is capable of executing commands. exe only when the aspnet_banking_app is created or changed. 26th - 28th Surrey Sparks Stages - Puppet-making workshops Surrey BC. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. However, I strongly recommend that you do not use any kind of non-conditional exec with puppet. You should never use this API unless you absolutely must support Puppet 3. Puppet Resources are the building blocks that puppet uses to model system configurations. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n $ {lxcname} >/dev/null. The third example is a (semi-)common mistake made by people coming from certain other tools. exe utility (note the space after and lack thereof before the = character): exec { "install_service" : command => "$ {Sys32}sc. It would be better to explicitly "exit 0" whenever you do not "exit 1". password is not getting changed to the default password and also. bundle exec rake dir_server:run [config/dea. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. You can use the unless parameter to only execute the statement in certain states. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. I am using vagrant with puppet to set up virtual machines for development environments. Puppet - How to purge a directory. When you share a folder on your computer, other users on the same network can access the files and folders inside it. Selector statement. Let’s take a look there: ls -la /etc/puppet. e. 163k 8 82 159. If. For example, the value String represents the data type of strings. On Windows, most exit codes are integers between 0 and 2147483647. I am struggling with how to pass a puppet variable through to powershell. That's what the ticket is about. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. You can use Puppet variables in an EPP template to customize its output. We will focus on the language terminology, syntax and. 0. A quick reference of syntax examples for the Puppet language. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. Try adding -Scope LocalMachine to your unless statement. Let's assume that you can write a find command to list all of your files that you want deleted. }Puppet: Conditional exec using unless-option. Puppet exec command runs in shell, but not via puppet. The exec resource from Puppet, the automation framework, is a mysterious beast. To use sudo non-interactively, the invoking user needs a NOPASSWD: entry in sudoers %wheel ALL=(fred) NOPASSWD: /usr/bin/echo "hola dan" Then. I don't think there is an exception handling in a programmatic way you would like in Puppet. 0. The shortest path to creating better Puppet modules. 2. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. If Puppet is managing the user that an exec should run as. Following code updating file /etc/sysctl. 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. 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. In many cases, such commands get only one chance to fire. For example, command => 'cmd. Windows puppet exec command file path. The setuid/setgid/sticky digit is also a. 5. I am new to Puppet, and I am trying to install a file if a package is installed. -- Peter Bukowinski. 1. exe /c C:/test. Back to overview of wls_exec. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. Node examples. Default: Undefined. e. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. If you declare users as virtual resources , you can then use 'realize' or the collection syntax ( User <|. 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. It's important to note that the notify resource type is not idempotent. 0 Puppet strange behaviour of execs. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. do, line 50) cannot accept an array of options. Expressions can be compounded with other expressions, and the entire combined expression resolves to a single value. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. 0. 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. 1. Assignment operator. This means a resource with noop => false will be changed if necessary, even when. The file will be generated in the directory you're currently in, unless you specify otherwise. Welcome to the Puppet CookBook. Please qualify the command or specify a path. Puppet running exec. I would like to simply set a few environment variables in the . if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. indicates that the shell tried to execute '3' as a command, and, unsurprisingly, did not find it. Running Powershell in Puppet. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. . Puppet Development Kit. Publish a module; Topics. ##Development. Teams. Puppet: deploy file unless it exists. Puppet noop When Executable does not exist yet. 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. Let's also assume that you're puppet module knows when do delete these files. All modules; Supported modules; Modules with tasks; Contribute. 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). As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. exec { ‘SETHELLO’: command => ‘Add-Content -Path c:\test. I have Puppet master 3. The problem is that the exec command is running before the group command. To run an exec task, use the task command, specifying the command to be executed. 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. exec { "Test": command => "/bin. 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. #####unless Runs the exec, unless the command returns 0. If I try creating it as my process user, I get permission denied. The ensure (see ensurable. 1 on many Windows machines. All groups and messages. This consistency in code and module structure makes it easier to update and maintain the code. 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. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. There are times when you have a complex script that you just need to get into configuration management. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. 0. where read = 4, write = 2, and execute/search = 1. Puppet provides a built-in exec type that is capable of executing commands. wow! My recommendation is: throw it away and start over. 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. This differs from some other languages where looping constructs are special keywords. g. 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. 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. Puppet File resource runs despite Exec unless. The statement itself is simple but the class doesn't contain any built-in conditional checks (similar to "unless =>" in exec class). 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. 1 Answer. 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. code. String comparison using in doesn't work with unless. 0\powershell. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. Puppet runs executed on multiple external systems. 9]: FAILED! => {"failed": true, "msg": "The conditional check 'rabbitmqctl. 2. 6. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. Case statements will execute a maximum of one code block. puppet agent -td --evaltrace --profile > agent_debug. Plans. Hot Network QuestionsOn this site you can find information about supported enterprise-grade puppet modules. 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. Long answer. Puppet 3 is no longer supported, but we. 2. Right now, I have the bit below for certain nodes:open-vm-tools. You may need to reboot the system after enabling if SELinux was. 0 how to ensure puppet exec run on every event triggered? 0 Puppet: How to execute a Exec resource if another Exec resource failed. Larger exit codes on Windows behave inconsistently across different tools. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 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. I'm not sure what the problem is, and I need more information. It logs all diagnostic messages during a Puppet run. 0. Modules that are supported by Puppet, Inc. First, change the require arrow to a notify arrow, from -> to ~>. Running Powershell command directly using Puppet exec resource. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. puppet seems to execute the command in a way that means it never runs successfully. The Puppet “exec” resource allows users to run commands and scripts on nodes. Expand. I can fix this manually. The --debug flag enables verbose logging. If the file does not exist then the Exec succeeds without running /bin/true. 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. Another way to control an exec resource is to add a refreshonly => true attribute. However the in function seems to work with if only, when I use unless I get the following e. Hot Network Questions Short video of insurance salesman summoning a demon who also is into insurance Sum of Rows of Vandermonde Matrix Mulliken Labels: How do I tell apart E, doubly degenerate, symmetry apart from T, triply degenerate, symmetry) for a molecular orbital?. 2. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. Puppet for Windows and Powershell Recipes. Puppet PowerShell Execution. Classes generally configure large or medium-sized chunks of functionality, such as all of. exe"", path. Executables, zips and or tar. Conditional statement examples.