00 GiB'and $::facts['processorcount'] >= 2 and Exec['port_connectivity'] condition was successful. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. properties. 1. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. Puppet have a defined resource fail if a variable is set to undef. Despite the -ExecutionPolicy parameter the PowerShell command will fail if execution is restricted via group policy. He just built and performed the lead puppet for a Toronto television pilot. Sends an arbitrary message, specified as a string, to the agent run-time log. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. Publish a module; Topics. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. As a result, notifications are shown as a change on every Puppet run. I assume the default behavior of the parser is such that if it receives an array. newtype (:yumgroup) do @doc = "Manage Yum groups A typical rule will look like this: yumgroup { 'Development tools': ensure => present, } " ensurable newparam (:name) do isnamevar desc 'The name of the group' end end. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. onlyif and unless in --noop documented. 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. For. The Puppet “exec” resource allows users to run commands and scripts on nodes. The value that represents the data type of these values is Type. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. I am trying to use code like this: exec { 'example':. Problem with "if" is that it expects the file on the puppet server not on the client. You should never use this API unless you absolutely must support Puppet 3. John. "Unless" statements work like reversed if statements. This means a resource with noop => false will be changed if necessary, even when. All modules; Supported modules; Modules with tasks; Contribute. exe -executionpolicy remotesigned -file C:\test. How to pass multiple values in exec command resource in puppet? Hot Network Questions How to extract coefficients and powers from expressions with non integer powers?This is such a common requirement that puppet has a single property that "does the right thing". I have a script that really only needs to be run one time on a server, i. The command is only executed if the Guest account does not exist, as indicated by unless returning 0. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. exec { 'update hostname': command => 'hostname VM01', path => '/usr/bin:/usr/sbin/:/bin:/sbin', unless => '[ "$(hostname)" == "VM01" ]', } You need to. A quick reference of syntax examples for the Puppet language. Then, you can install the Nuget package via the package resource in Puppet. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. 1 Answer. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. 2. Exec type's onlyif and unless in --noop documented. The command parameter is the PowerShell code you want to run on your node. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. } Puppet: Conditional exec using unless-option. ##Limitations. 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. PUP-11199. Puppet File resource runs despite Exec unless. Plans. A second option would be to use the schedule metaparameter: schedule { 'everyday': period => daily, range => '1:00 - 1:59', } exec { 'do your thing': schedule => 'everyday', } That assumes that Puppet really will run only once per hour. But I think the correct way is to use creates: The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. The documentation referenced is about something different: the 'unless' statement. 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. 0. See the Puppet Type Reference for the exec resource and look for unless and onlyif. Larger exit codes on Windows behave inconsistently across different tools. This example includes an elsif condition, and gives a warning if you try to include the ntp class on a virtual machine or on machine running macOS: 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. It doesn't even cause clutter in the logs! See also. 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. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. supported. 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. e. 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. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. 1. The pgrep manual page tells us that the exit code for pgrep will be zero (0) only when matching processes are found and it'll return one (1) when there are no matching processes. However, this manifest will exec the command every time the puppet client checks in with the puppet master. Chaining arrows. Puppet has two main ways to declare classes: include-like and resource-like. 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. Puppet provides a built-in exec type that is capable of executing commands. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. Maybe. 0. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. First I would like to use booleans as defined in Hiera [ auto lookup function ]. ##Development. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. Please qualify the command or specify a path. The only plausible source of such an issue in the code you presented is your Exec's unless command: unless => "`ps -eaf | grep service | grep -v grep | wc -l` -eq 3" When the command there is executed by the shell, it first executes unless: A shell command that is run as a test to determine if the command should not run. The Win32 APIs. do, line 50) cannot accept an array of options. 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. exe /c echo "hello"'. supported Adds a new exec provider for executing PowerShell commands. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. 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. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. Puppet avoids destroying directories unless the force attribute is set to true. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. The problem is that the exec command is running before the group command. You can use the unless parameter to only execute the statement in certain states. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. The way I check this is if the gopher user has the default uid of 13. 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. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . Adds a new exec provider for executing PowerShell commands. Modules that are supported by Puppet, Inc. onlyif and unless in --noop documented. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. Puppet: 'creates' does not create. If the path isn’t set, you must fully qualify the command’s name. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Sometimes a simple creates isn't enough to determine if an exec should run or not. Learn more about TeamsUnless puppet supports escaping somehow. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. Usage. you can check this quickly with the telnet command. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. Tasks use Scripts to execute them on remote machines. 5. As for a "more intelligent way of excluding", I think you need to couch the question differently. When a lambda requires extra information, pass it to a function that provides the information and to evaluate the code, possibly multiple times. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. 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. Running Powershell command directly using Puppet exec resource. unless => "powershell. If. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. Which it looks like it doesn't. 1. Alternative 1: create a bash script: ugly Exec resources and temp files. The problem is Exec['apt-update'] is always performed (i. 4. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 2. . The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. I am poorly familiar with the puppet language but would guess something like this to execute the jar file: exec { 'jar_execution': command => 'cmd. txt ]; then echo "my_fileexists=yes" else echo "my_filexists=no" fi. Selector statement. Share. 1', } Puppet supports if and unless statements, case statements, and selectors. Sequence of Execs in Puppet. If invoked by a. Expand. , for example, the Exec resource being. That will run every time puppet runs. But this configuration does not detect when any of the configuration files have been modified outside of puppet. Follow answered Jan 12, 2015 at 6:48. That's what the ticket is about. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. The Puppet “exec” resource allows users to run commands and scripts on nodes. Share. I would like to simply set a few environment variables in the . Publish a module; Topics. It applies the resource on the left before the resource on the right. password is not getting changed to the default password and also chage. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Include-like behaviorAll groups and messages. Puppet: exec onlyif value is not equal. Tags. The logoutput parameter just logs the output to the. unless: A shell command that is run as a test to determine if the command should not run. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. 0 on RHEL 6 and am doing package management via the exec resource. 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). Puppet File resource runs despite Exec unless. ##Development. Adds a new exec provider for executing PowerShell commands. It is a limitation of the underlying system. 0. Case statements will execute a maximum of one code block. silent way to import registry file via puppet module. The Puppet exec will not run unless the "unless" command exits with status 0. Improve this answer. Adds a new exec provider for executing PowerShell commands. The service will detect it is not running and start itself if required. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . Platform Engineering. (capital X) permission when using recursion so files can retain the execute permission if they have them, but also allow you to traverse the directory as that requires the execute. Apart from all that, it is good practice with Puppet to actually deploy wrapper scripts that your exec resources. 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. Valid options: String. Connect and share knowledge within a single location that is structured and easy to search. 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'. The onlyif parameter is defined as. It is not possible to use bash here. Puppet Exec with no command attribute. TJL. Plans are sets of tasks that can be combined with other logic. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. And elsewhere you can add to the parameters for. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. See “Case Matching” below for details on how Puppet matches different kinds of cases. Something like this should work: - name: Get rabbitmq vhosts. cmd. A puppet show is a great way to entertain the kiddos at your next event! Find the best puppet shows in Victoria, BC and request free quotes today. asked Apr 1, 2022 at 20:47. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. Puppet Exec resource to apply only when a File changes. All groups and messagesCreate A Puppet Configuration File. 1. Here is my code, don't worry about variable which is already set in original code. I tested using an Exec with an unless parameter that emits the message, but Puppet does not seem to print the output of the unless command. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. loki77. g. 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. Running Powershell command directly using Puppet exec resource. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. Using virtual box and a vagrant bas. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. exec. 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 can I tell Puppet to stop a service on shutdown without keeping it running? 0. 2. "Unless" statements work like reversed if statements. Here's an example: @user { 'foo': groups => ['somegroup'], membership => minimum, } Then realize that virtual user with then collection syntax: User <| title == foo |>. 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. 2. 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. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. If Puppet is managing the user that an exec should. 0. 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. jar file is actually an update for an application which is running as a service. 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. Taking the baseline time away, the old module took 20 seconds (32 - 12) and the new module took 10 seconds (22 - 12). Classes generally configure large or medium-sized chunks of functionality, such as all of. Ben is the Community and DevRel lead at Puppet, where he's been scared by production Puppet code for the last decade. 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. Using onlyif allows you to use the return value of one or more commands as your. Puppet running exec before other commands. Shell built-ins. They take a control expression and a list of cases and code. An 'unless' statement could be used to avoid declaring the package at all in the event that a custom fact. 1 on many Windows machines. 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. exec { ‘SETHELLO’: command => ‘Add-Content -Path c: est. Adds a new exec provider for executing PowerShell commands. 0. Note that the example uses the unless parameter to make the resource idempotent. ;) – ferventcoder. if you want execute a powershell file:. So if you put an exec without conditions, it will execute the command on every run. h ), and the sub-processes it spawns. I don't think there is an exception handling in a programmatic way you would like in Puppet. Do you have reason to think that there's something wrong. 0. The strange thing is that when I reboot my machine and re-run puppet apply, it reruns the creation of this directory on every reboot. supported Adds a new exec provider for executing PowerShell commands. exe utility (note the space after and lack thereof before the = character): exec { "install_service" : command => "$ {Sys32}sc. Search. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Install Puppet Agent on bulk windows server. However currently I am struggling to figure out how to do this. Puppet provides a built-in exec type that is capable of executing commands. The best solution would actually be to use something like Augeas to examine the file and modify as necessary. Modules. You can use expressions almost anywhere a value is required. This tells Puppet to run aspnet_regiis. 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. Among them, notice (), info (), and debug () seem the. In any given case, you should use whichever approach makes sense. . When something isn't builtin to file, I generally just to turn to an puppet exec declaration. 1. but the command fails. We will focus on the language terminology, syntax and. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple. supported Adds a new exec provider for executing PowerShell commands. The onlyif parameter is defined as. This allows you to do more complex task operations, such as. 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. The second one unzips it. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. I'm really confused about this, it seems like puppet can. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). 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. Puppet runs executed on multiple external systems. We explore practical examples and best practices for handling procedural requirements when we look at the exec resource type in Chapter 5. 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 ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. e. Here is the service file springboot. Since I don't have Puppet 4. the unless attribute provides a condition. If the file does not exist then the Exec succeeds without running /bin/true. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. Puppet - Check if package is installed, but do not require it. exec command unless directory exists in puppet. 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. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. 0. In your case, the Exec is always successfully applied. The script remaps several legacy user id's that conflict with local system users. you should get something like -. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. notify. Puppet strange behaviour of execs. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. The file will be generated in the directory you're currently in, unless you specify otherwise. g. "Unless" statements work like reversed if statements. – tom. The 'unless' and/or 'ifonly' commands must run every time, though. 2. 0 Output on one command cause next one to fails. You can use the unless parameter to only execute the statement in certain states. The Forge makes it easier for you to manage Puppet and can save you time by using pre-written modules, rather than writing. service ntpd stop ntpdate ntp3. 9]: FAILED! => {"failed": true, "msg": "The conditional check 'rabbitmqctl. The . There are three main ways for an exec to be idempotent:Conversations. It looks like you're having Puppet execute a shell script to perform the installation. I would like to add a number of control gates into my manifest via onlyif and unless. 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. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. When you share a folder on your computer, other users on the same network can access the files and folders inside it. Depending on your client's platform you can use ACLs to grant varied permissions to more than one group or user. Create exec resources with metadata to ensure it is idempotent. 6. The whole idea of adding this step is to check and execute the command- makeswap only if the swap is not in place. Thus:I only want to execute that if the hostname is not what it should be: exec { 'update hostname': command => 'sudo hostname VM01', unless =>. 2) that no other resource is set to 'notify' Exec ['command_two']. Create this file only if it does not exist, or Start this windows service unless it’s already running. 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. Conversations. Puppet provides a built-in exec type that is capable of executing commands. Like, from scratch. Step Zero: Enable SELinux! Enabling SELinux is done by including the site_selinux class somewhere in your Puppet configuration. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. This is where refreshonly backfires rather terribly. The command parameter is the PowerShell code you want to run on your node. To run an exec task, use the task command, specifying the command to be executed. You can also set variables within the manifest, which can change the. 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. The Puppet “exec” resource allows users to run commands and scripts on nodes. They take a control expression and a list of cases and code. The difference between platform engineering and DevOps is pretty nuanced. Sequence of Execs in Puppet. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. You can read more about it here. 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. With PE on the command line, run puppet task run exec command=<COMMAND>. Although that can work, I urge you to consider instead packaging up your service (as an RPM, DEB, or whatever is appropriate for your system), putting it in a suitable repository, and managing its installation via a Package resource. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. if statement, with in expression. 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. This can be used with bash on Linux,. As long as the file / directory specified in creates exists puppet won't run the exec. It is. 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 Win32 APIs define exit. 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. puppet-modules; puppet-motd; puppet-ntp; puppet-perl; puppet-php; puppet-ssh; puppet-timezone; python-cloudlb; rackspace-monitoring-agent-plugins;. So in. The Windows module pack is a group of modules available on the Forge curated to help you complete common Windows tasks. I want to check, if a given string is inside an array and if it isn't, I want to execute the code inside. 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. 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. Puppet strange behaviour of execs. The second one unzips it. Executables, zips and or tar. 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. ##Development. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. 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. However, if all you want is to. 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. 0powershell. No find command is run; the test just passes by examination of the argument. Puppet: Exec from class when Exec from another class is successful. if statement, using expressions and facts. Node definition. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. First, change the require arrow to a notify arrow, from -> to ~>.