Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. November 8, 2023. Puppet’s behavior when declaring or assigning a class with both styles is undefined, and will sometimes work and sometimes cause compilation failures. The Win32 APIs. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. 2. running the code resulted in: fatal: [192. Tim Gosley’s four decades in puppetry include a wide spectrum of projects. Aside from being good. 2. 12 behavior got changed to match the intention. For detailed information about built-in types, see the Resource type reference. 0. 1. --Puppet::Type. asked Apr 1, 2022 at 20:47. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. Detecting if windows service is already installed using puppet exec. Is this the best way to do this?. exe only when the aspnet_banking_app is created or changed. 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. You can validate that a manifest's syntax is correct by using the command puppet parser validate. Please qualify the command or specify a path. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. If I try creating it as my process user, I get permission denied. exec { 'mysql post cmd1': command => 'whatever', require => Mysql::Db['cosmed'], unless => 'command to check that this exec has been applied. If the path isn’t set, you must fully qualify the command’s name. 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. rb instead of including them in the individual test files. d/x exists then /bin/true is run (successfully). 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. I can fix this manually. Hiera supports booleans, and always has done so -- or at least, it is so documented. 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. However, this manifest will exec the command every time the puppet client checks in with the puppet master. 1. If this parameter is set, then this exec will only run if the command has an exit code. 6. Conditional statement examples. The generic way for "manually" creating a service in Windows is to use the sc. John. you can check this quickly with the telnet command. After changing topology strategy, cassandra should rebuild keyspace - this is where puppet comes. Modules that are supported by Puppet, Inc. It would be better to explicitly "exit 0" whenever you do not "exit 1". Control expressions unless => 'ls /somefile' ls will return with a non-zero return code if the file does not exist and unless will only let the exec it is under execute if its test returns a non-zero return code. 5. Wow. To do this in Puppet you would have to use an Exec and invoke setfacl (if you were on Linux, for example) directly. 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. 1. Unless you are sharing with the world, you don’t need most. If this parameter is set to true all necessary changes are made to make a server compliant to the security baseline rules. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. Puppet should then run two commands only once. 17 also improves the way typed class parameters are checked. exec power shell script having corrective action every time. 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. If the query specified in the unless parameter returns one or more records, the main statement is skipped. Adds a new exec provider for executing PowerShell commands. 0. Publish a module; Topics. The best solution would actually be to use something like Augeas to examine the file and modify as necessary. Assignment operator. supported Adds a new exec provider for executing PowerShell commands. Puppet: deploy file unless it exists. Scripts file serving mount. But it when I try it, it is. I can do something like: file { '/tmp/wehavepostfix': ensure => file, content => "foobar", require => Package ['postfix'], } However, this requires something like:With PE, run puppet task run exec command="df -h" --nodes neptune. Puppet Exec with no command attribute. This will cause puppet to. In any given case, you should use whichever approach makes sense. 4. 0. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. This seems to work just fine. Commenting out or outright deleting the class declaration, as you have done, is the simplest and most universal method for ensuring that the class is not applied. 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. Resource default for the exec type A resource default statement set default attribute values for a given resource type. 1 on CentOS, and Puppet clients 3. exe -NoProfile -NoLogo . 0. So, in order to avoid this I am adding the refreshonly parameter as follows. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. ps1', } Puppet uses the same. 2 install on Ubuntu 18. 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. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. 2. 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. TJL. Puppet provides a built-in exec type that is capable of executing commands. Unless you tell your exec not to run for some reason or another, it will always run. Extending the timeout is an option but ridiculous since default is 300 seconds and none of these commands should take 5 minutes or more to return. If you do need to do it via say the exec resource, then @16c7x's statement is correct. Yes, you'd put a script into your modules path under a facts. Another way to control an exec resource is to add a refreshonly => true attribute. 0. Problem with "if" is that it expects the file on the puppet server not on the client. Puppet: Conditional exec using unless-option. 2. exe invocation as the command. ##Development. 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. 1. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. Puppet File resource runs despite Exec unless. 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. 6. You can use not filter to get unless like behavior. The risk of course is that Puppet runs more than once in that hour, e. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. Puppet: Exec from class when Exec from another class is successful. Puppet avoids destroying directories unless the force attribute is set to true. require means that the the resource passed to require must be applied before the calling resource. Try again and this time show the failure. Puppet provides a built-in exec type that is capable of executing commands. . run this on your node -. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. In the Puppet language, nearly everything is an expression, including. Since Puppet 2. An example in Puppet 2. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n ${lxcname} >/dev/null. "Unless" statements work like reversed if statements. 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 File resource runs despite Exec unless. 0. Sequence of Execs in Puppet. See “Case Matching” below for details on how Puppet matches different kinds of cases. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. Install Puppet Agent on bulk windows server. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. Modules that are supported by Puppet, Inc. 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. The command should only be run as a refresh mechanism for when a dependent object is changed. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Sometimes a simple creates isn't enough to determine if an exec should run or not. Classes generally configure large or medium-sized chunks of functionality, such as all of. 2. Puppet Exec resource to apply only when a File changes. config/autostart ]' is not qualified and no path was specified. Ensure directory tree exists. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. Resource default for the exec type A resource default statement set default attribute values for a given resource type. This module adds a powershell provider to the exec type, which enables all of the exec parameters, such as creates, onlyif, unless, etc. Q&A for work. The commands in an Exec resource either have to be fully qualified (i. Taking the baseline time away, the old module took 20 seconds (32 - 12) and the new module took 10 seconds (22 - 12). I will show how these work in the example below. This means that if a file is currently a directory,. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. Modules that are supported by Puppet, Inc. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. The logoutput parameter just logs the output to the. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. That is, unless you can use purging with them. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Puppet Exec resource to apply only when a File changes. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. } Puppet: Conditional exec using unless-option. Puppet - Not able to find a declared class. It will execute the block of code associated with the first matching case, and ignore the remainder of the statement. 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. 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. Adds a new exec provider for executing PowerShell commands. 2) that no other resource is set to 'notify' Exec ['command_two']. Similarly, we can use unless, unless execute the command all the time, except the command under unless exits successfully. Puppet File resource runs despite Exec unless. You can use Puppet variables in an EPP template to customize its output. The second one unzips it. exe /c C:/test. Or even better, split the shells parts into separate exec resources with dependencies and unless parameters. exec { "Change status and start-up of Win service": command => 'C:WindowsSystem32WindowsPowerShellv1. To use commands with pipe |, you must use the shell builtins work around with cmd. the unless attribute provides a condition. 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. In this case specifying a directory is done by setting ensure to (unsurprisingly) directory. The command is only executed if the Guest account does not exist, as indicated by unless returning 0. Puppet: 'creates' does not create. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. However, I strongly recommend that you do not use any kind of non-conditional exec with puppet. Create this file only if it does not exist, or Start this windows service unless it’s already running. For. onlyif and unless in --noop documented. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Puppet: how to remove a directory and everything in it. Project. I'm experiencing a very strange behavior with Puppet's Exec type. exec command unless directory exists in puppet. h ), and the sub-processes it spawns. 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. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. See the Puppet Type Reference for the exec resource and look for unless and onlyif. e. Puppet is about describing state and making sure things only have to run once. With Bolt on the command line, run bolt task run exec command=<COMMAND>. . Currently, he experiments. 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. exe; Backslashes only. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. 2. Modules that are supported by Puppet, Inc. Improve this answer. Default: Undefined. notify is set on the user, and refreshonly is set on the exec. Selector statement. Hot Network Questions tcpdump -vvv is not verbose enough. So then intention and documentation has always been the same since 4. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Our choice at the beginning of the project was to not start with it, for these reasons : It was important for the team to learn shell first, even if the lifetime of the scripts had to be short. 4. The script remaps several legacy user id's that conflict with local system users. The Forge is an online community of Puppet modules submitted by Puppet and community members. First I would like to use booleans as defined in Hiera [ auto lookup function ]. Puppet Exec Resource. The Puppet “exec” resource allows users to run commands and scripts on nodes. 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. I am using vagrant with puppet to set up virtual machines for development environments. I have a script that really only needs to be run one time on a server, i. where read = 4, write = 2, and execute/search = 1. The ensure (see ensurable. See the Puppet Type Reference for the exec resource and look for unless and onlyif. [Unit] Description=My Webapp Java REST Service [Service] User=ubuntu # The configuration file application. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. command => '/path/to/script. This means that if a file is currently a directory, setting ensure to anything but directory or present will cause Puppet to skip managing the resource and log either a notice or. 0. 20. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. Follow answered Jan 12, 2015 at 6:48. Publish a module; Topics. Visit Stack ExchangeYes, you'd put a script into your modules path under a facts. Over the years of using puppet I've noticed that people often come up with the same kind of. d/pgsql. } @choover Unfortunately that won't work. exec { 'foobar': command => 'foo | bar', } However, there are occasions where foo fails. Only supported on Windows Server 2003 and above, and Windows 7 and above. Sep 13, 2012 at 15:51. For example, to view the free disk space of a host, run: With. lst contents. Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. exec { ‘SETHELLO’: command => ‘Add-Content -Path c: est. Puppet Exec with no command attribute. exec {'rename-guest': command => '(Get-WMIObject Win32_UserAccount -Filter "Name='guest'"). Setting the umask only has effect within the process that does it (see umask in sys/stat. The logoutput parameter just logs the output to the. How to ensure Service is restarted before commands from Exec resource execute? 0. The baseline measures how long Puppet takes to just start up, so it’s not even executing powershell then. 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. Contribute to tarunmunjal/puppetlabs-powershell development by creating an account on GitHub. With PE on the command line, run puppet task run exec command=<COMMAND>. Puppet running exec before other commands. e. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. String comparison using in doesn't work with unless. You should never use this API unless you absolutely must support Puppet 3. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . 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). You might want to use the refreshonly parameter on your exec. Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. Puppet Development Kit. Your best bet is to run the action as a script and set up the PATH inside the actual script. 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. 0 or later must be installed on the machine from which you are running task commands. Puppet exec unless doesn't appear to work how I expect. exe /g | findstr /C:"$ {timezone}"", } Well, I ended up not needing to do this as I found a config file I could just manage as a template. Note that the example uses the unless parameter to make the resource idempotent. This can have severe impacts to the machines, especially if security settings are defined in a wrong way. Puppet can execute binaries (exe, com, bat, etc. Puppet exec unless doesn't appear to work how I expect. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows?. 1 on many Windows machines. To use sudo non-interactively, the invoking user needs a NOPASSWD: entry in sudoers %wheel ALL=(fred) NOPASSWD: /usr/bin/echo "hola dan" Then. 2. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. Puppet: exec onlyif value is not equal. NORTHWEST LIBRARY FEDERATION. Description. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. ps1 script. PUP-11199. d directory, then puppet agents pull it down and execute it on every run and provide the fact. {"payload":{"allShortcutsEnabled":false,"fileTree":{"lib/puppet/type":{"items":[{"name":"file","path":"lib/puppet/type/file","contentType":"directory"},{"name. Puppet avoids destroying directories unless the force attribute is set to true. puppet-modules; puppet-motd; puppet-ntp; puppet-perl; puppet-php; puppet-ssh; puppet-timezone; python-cloudlb; rackspace-monitoring-agent-plugins;. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. 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. Unix: exec { 'delete_files': command => "/bin/find [your find command arguments here] -delete", } Some find commands don't have -delete, so. 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. 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. 0powershell. The issue is, while first two are correctly executed under "user", third command is executed in. Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their. 2. rb file or in the individual test files, and configure Puppet and Bolt for the testing environment. 1. The second one unzips it. e. Default: Undefined. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. I assume the default behavior of the parser is such that if it receives an array. I am trying to use code like this: exec { 'example':. g. You can use the unless parameter to only execute the statement in certain states. txt ]; then echo "my_fileexists=yes" else echo "my_filexists=no" fi. Which it looks like it doesn't. It is not possible to use bash here. where read = 4, write = 2, and execute/search = 1. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. Juan. exec { "Test": command => "/bin. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. if statement, using expressions and facts. e. Puppet runs executed on multiple external systems. To run tasks with Puppet Bolt, Bolt 1. 1 Unless issue with Puppet. The file will be generated in the directory you're currently in, unless you specify otherwise. 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. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. All groups and messages. . Understand the syntax and function of the if, unless, case, and selector statements. If Puppet is managing the user that an exec should run as. Your exec will run only if pgrep returns 0. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. 2. 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. We explore practical examples and best practices for handling procedural requirements when we look at the exec resource type in Chapter 5. Exec ['get-chocolatey'] -> Package<| provider == 'chocolatey' |>. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. Puppet exec - fails to execute command as user. 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. Q&A for work. Include-like behaviorAll groups and messages. Right now I have: exec { 'first command': command => "some command" path => '/usr/bin', notify => Exec ["second command"], } exec {. Puppeteer Script Works Local But Not On EC2 AWS. Puppet exec - fails to execute command as user. exec { ‘SETHELLO’: command => ‘Add-Content -Path c:\test. But it is certainly worth verifying the type and value of your variable. I am struggling with how to pass a puppet variable through to powershell. My notes on how to make it work for complex multi-exec configurations. 0. Alternately, you can put the PowerShell code. 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. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. 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. That command will always return 0 (true): it just tests whether the given string is nonempty. Create this file only if it does not exist, or Start this windows service unless it’s already running. Puppet exec command runs in shell, but not via puppet. Usage. Learn more See the exec documentation for the command, unless, and onlyif. 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. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. Unless you are sharing with the world, you don’t need most. 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. Sends an arbitrary message, specified as a string, to the agent run-time log. g. 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. Depending on your client's platform you can use ACLs to grant varied permissions to more than one group or user. Setting noop=>false means your file resource will always be applied, even in a noop run. 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. 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. bundle exec rake dir_server:run [config/dea. . 0 Output on one command cause next one to fails. 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. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. 163k 8 82 159. The synchronization of an out-of-sync Exec resource involves only running the command given by its 'command' property, so that's the only part that --noop prevents. 1. Examples An if statement evaluates the given condition and, if the condition resolves to true, executes the given code. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 0. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false,. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). "Unless" statements work like reversed if statements. You can read more about it here. This differs from some other languages where looping constructs are special keywords. 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. To run an exec task, use the task command, specifying the command to be executed. Share.