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. Here is my code, don't worry about variable which is already set in original code. If the query specified in the unless parameter returns one or more records, the main statement is skipped. You might want to use the refreshonly parameter on your exec. When evaluated, these tagged expressions can modify text in the template. That is, unless you can use purging with them. 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. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. This means you. 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. Expressions are statements that resolve to values. Important: This API has severe problems — most notably, functions that use it will leak between environments. Manage local groups . Expand. Running Powershell in Puppet. Project. On reboot, the directory doesn't exist, strangely enough. Puppet strange behaviour of execs. Puppet includes two Ruby APIs for writing custom functions. if you want execute a powershell file:. The command should only be run as a refresh mechanism for when a dependent object is changed. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Discover. The shortest path to creating better Puppet modules. 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. g. Since Puppet 2. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). 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. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. As best I can tell by reading the source code the "holdable" feature is fundamentally flawed. powershell conditional IsNullorEmpty not working as planned. 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. 1. 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. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. There are a number of parameters you can set. November 8, 2023. For detailed information about built-in types, see the Resource type reference. Conditional statement examples. ##Limitations. 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. . In your case, it sounds like you want the exec to run only when your file changes. 12 behavior got changed to match the intention. This consistency in code and module structure makes it easier to update and maintain the code. e. Glossary. Shell built-ins. I am poorly familiar with the puppet language but would guess something like this to execute the jar file: exec { 'jar_execution': command => 'cmd. Puppet Exec with no command attribute. Adds a new exec provider for executing PowerShell commands. The Puppet “exec” resource allows users to run commands and scripts on nodes. 4. 0. 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. 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. Puppet: Conditional exec using unless-option. '". Puppet reboot in stages. So the "cwd" now impacts the path of the "onlyif". If the path isn’t set, you must fully qualify the command’s name. 1. Only supported on Windows Server 2003 and above, and Windows 7 and above. 3) Unless some other block has a before => Exec["my_exec_block"] in it, the Exec block will run in some arbitrary semi-random order, probably not when you want it to run. I assume the default behavior of the parser is such that if it receives an array. exec { 'foobar': command => 'foo | bar', } However, there are occasions where foo fails. My first idea came in the lines of (within a class):One minor nitpick regarding Womble's answer: the puppet style guide recommends using single quotes unless you need double quotes for variable interpolation. 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. , for example, the Exec resource being. . The file will be generated in the directory you're currently in, unless you specify otherwise. I am using vagrant with puppet to set up virtual machines for development environments. at deployment time, but figured it would be best to have Puppet manage it. Default: Undefined. Puppet check if a nagios resource exists. 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. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. 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. Learn more See the exec documentation for the command, unless, and onlyif. Unless you tell your exec not to run for some reason or another, it will always run. Try adding -Scope LocalMachine to your unless statement. Puppet exec - fails to execute command as user. 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. I am trying to use code like this: exec { 'example':. 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. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. 4. Discover. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. execute update-grub, which would look for avaliable kernels and would add related configs to the menu. 2. unless => "powershell. It will execute the block of code associated with the first matching case, and ignore the remainder of the statement. I am struggling with how to pass a puppet variable through to powershell. Improve this answer. For information on all core types, including supported types in the puppet-agent package, see. What is Puppet? | How Puppet Works? | Puppet Tutorial For. Problem with "if" is that it expects the file on the puppet server not on the client. . The best solution would actually be to use something like Augeas to examine the file and modify as necessary. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. 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. Puppet provides a built-in exec type that is capable of executing commands. d/pgsql. Googling unless ansible showed this document about when. You can use expressions almost anywhere a value is required. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. I want to check if the file exists in the client. 0\powershell. I wouldn't use puppet for a yum update, and my execs always have creates, onlyif, refreshonly or unless to ensure they only run when needed. Puppet provides a built-in exec type that is capable of executing commands. It am trying to add 'replica' user to my postgres server though puppet so i can use it in my master-salve cluster. Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. For example, the value String represents the data type of strings. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Exec type's onlyif and unless in --noop documented. 1. Adding a / to the end of a file name isn't enough to tell puppet to. This will cause puppet to. 0. exec. If it would be sufficient to emit the message into the master 's log, then there is a set of functions for that purpose. With Bolt on the command line, run bolt task run exec command=<COMMAND>. 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. So in pseudocode: IF postfix is installed DO touch /tmp/wehavepostfix DONE. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false,. Local user accounts are often desirable for isolating applications requiring unique permissions. If a manifest has no syntax errors, the tool outputs nothing. Adds a new exec provider for executing PowerShell commands. Please qualify the command or specify a path. Thus:I only want to execute that if the hostname is not what it should be: exec { 'update hostname': command => 'sudo hostname VM01', unless =>. Please qualify the command or specify a path. If you are using Puppet 3. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. 2. In Puppet, when using the exec resource, you can specify an "unless" attribute. Your fact could be something like this: #!/bin/bash if [ -f /my/file. do, line 50) cannot accept an array of options. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. 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. Hot Network Questions Cause-effect definition of fictitious forcesAdds a new exec provider for executing PowerShell commands. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. The script remaps several legacy user id's that conflict with local system users. Iteration features are implemented as functions that accept blocks of code ( lambdas ). Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. Puppet Defines Desired State. if statement, with in expression. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. 1. notify is set on the user, and refreshonly is set on the exec. -- Peter Bukowinski. There are three main ways for an exec to be idempotent:Conversations. where read = 4, write = 2, and execute/search = 1. 0. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. As a result, the chown in the main command always is run, and that is reported. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. 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. Puppet FuturePuppet is a configuration management tool which helps you to build the infrastructure and maintain its state. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. Resource default for the exec type A resource default statement set default attribute values for a given resource type. Mar 25, 2015 at 21:56 @Fr3edom21 if this answer is acceptable, please accept it as the answer. Similarly, we can use unless, unless execute the command all the time, except the command under unless exits successfully. 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. I will show how these work in the example below. John. e. This module adds a powershell provider to the exec type, which enables all of the exec parameters, such as creates, onlyif, unless, etc. – tom. 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. Following code updating file /etc/sysctl. 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/. Puppeteer Script Works Local But Not On EC2 AWS. To run tasks with Puppet Bolt, Bolt 1. Valid options: String. 2. This means that if a file is currently a directory,. The problem is the line when: rabbitmqctl list_vhosts | grep sensu. Only supported on Windows Server 2003 and above, and Windows 7 and above. When you share a folder on your computer, other users on the same network can access the files and folders inside it. You could use for instance (see reference doc)An exec will always run unless it has something to limit it. STILL REALLY WEIRD, but ok. When I apply the manifest for the first time, it works correctly. 1. 00 GiB'and $::facts['processorcount'] >= 2 and Exec['port_connectivity'] condition was 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. In your case, the Exec is always successfully applied. 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. Currently, he experiments. 3 I am experiencing puppet exit code 1 when running any powershell script that starts or invokes a process. 0 Output on one command cause next one to fails. 1 run Exec only if another Exec ran. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. supported Adds a new exec provider for executing PowerShell commands. ), and can log the child process output and exit status. # Setting Powershell Execution Policy to. supported Adds a new exec provider for executing PowerShell commands. One way is to use custom fact but that gets a bit too complicated as it requires ruby knowledge and custom facts execute on each and every server. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. If /etc/init. Adds a new exec provider for executing PowerShell commands. Scripts file serving mount. 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. 6. 1. 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. 0. All modules; Supported modules; Modules with tasks; Contribute. There are a few important parameters to use when writing an exec resource with PowerShell. Puppet File resource runs despite Exec unless. 1. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. 2. We will focus on the language terminology, syntax and. 0. So then intention and documentation has always been the same since 4. command => '/path/to/script. 2. how to ensure puppet exec run on every event triggered? 0. 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. Discover. properties. Classes generally configure large or medium-sized chunks of functionality, such as all of. 0. Q&A for work. With PE on the command line, run puppet task run exec command=<COMMAND>. As Forrest already said, it's not what puppet is designed for. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. ps1 script. e. Puppet provides a built-in exec type that is capable of executing commands. You can use Puppet variables in an EPP template to customize its output. domain. 168. 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. It is not possible to use bash here. Let's also assume that you're puppet module knows when do delete these files. Puppet File resource runs despite Exec unless. Puppet exec unless doesn't appear to work how I expect. The baseline measures how long Puppet takes to just start up, so it’s not even executing powershell then. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. g. The Puppet exec will not run unless the "unless" command exits with status 0. –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. Long answer. 2. So if you put an exec without conditions, it will execute the command on every run. Try again and this time show the failure. If none of the cases match, Puppet will do nothing and move on. Their exit codes convey whether to proceed with running the main command. 1. 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. Puppet for Windows and Powershell Recipes. d/ Prevents Puppet from considering. Modules. 0 how to ensure puppet exec run on every event triggered? 0 Puppet: How to execute a Exec resource if another Exec resource failed. 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. 0. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. Adds a new exec provider for executing PowerShell commands. PUP-11199. Rename("new-guest")', unless => 'if (Get-WmiObject. Larger exit codes on Windows behave inconsistently across different tools. 1. 12, but from 5. exec command unless directory exists in puppet. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. As a suggestion:I am using Puppet installed with the powershell module. 5. How do I make a puppet class dependent on all of the resources it defines? 1. Iteration functions. The problem is Exec['apt-update'] is always performed (i. Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. Note: PowerShell variables (such as $_) must be escaped in Puppet manifests either using backslashes or single quotes. Ensure directory tree exists. exe /c echo "hello"'. Expand. Puppet - Check if package is installed, but do not require it. If the query specified in the unless parameter returns one or. When I apply the manifest for the first time, it works correctly. 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". This means that if a file is currently a directory,. Note: These two behaviors should not be mixed for a given class. Modules. If executed as root, the lxc-info checks for the name among the root containers. 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. It's important to note that the notify resource type is not idempotent. supported Adds a new exec provider for executing PowerShell commands. This example specifies defaults for the exec resource type attributes path , environment , logoutput , and timeout . The 'onlyif' and 'unless' commands of an Exec are used in the process of determining whether the Exec is already in sync, therefore they must be run during a --noop Puppet run. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. you can check this quickly with the telnet command. d directory, then puppet agents pull it down and execute it on every run and provide the fact. Modules that are supported by Puppet, Inc. Puppet should then run two commands only once. Share Puppet can execute binaries (exe, com, bat, etc. Puppet can take an existing PowerShell Module and build a Puppet module out of it. 2. Puppet can take an existing PowerShell Module and build a Puppet module out of it. It applies the resource on the left before the resource on the right. And as for the title of this question which I originally overlooked. 2. exec power shell script having corrective action every time. Sometimes a simple creates isn't enough to determine if an exec should run or not. This tells Puppet to run aspnet_regiis. Remove the leading . The default behavior is to report the exit code only for the last command in the pipeline. 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 strange behaviour of execs. 1 on CentOS, and Puppet clients 3. Puppet lookup uses a hierarchy of data sources, and a given key might have values in multiple sources. The 'refreshonly' parameter, on the other hand, makes application of the Exec conditional on (and subsequent to) one or more other resources changing, sort of like an 'on update' trigger in a database. Puppet exec unless doesn't appear to work how I expect. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. exec { 'nagios-permissions': command => "/usr/bin/chown -R nagios:nagios $ {confdir}", onlyif. {"payload":{"allShortcutsEnabled":false,"fileTree":{"lib/puppet/type":{"items":[{"name":"file","path":"lib/puppet/type/file","contentType":"directory"},{"name. lst contents. So, in order to avoid this I am adding the refreshonly parameter as follows. 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. Using onlyif allows you to use the return value of one or more commands as your. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed. Sort by Year. Among them, notice (), info (), and debug () seem the. For example, to view the free disk space of a host, run: With. ) I am running Puppet v3. The issue isn't that the package doesn't install, but rather that apt automatically starts the. #####unless Runs the exec, unless the command returns 0. Provides integrated testing tools and a command line interface to help you. local service ntpd start How can I make Puppet run this command once on all servers? I want to Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. 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. This allows you to do more complex task operations, such as. puppet seems to execute the command in a way that means it never runs successfully. 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. This can have severe impacts to the machines, especially if security settings are defined in a wrong way. Setting noop=>false means your file resource will always be applied, even in a noop run. The second one unzips it. Aside from being good. 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. Execute create_resource after everything has finished or after exec has finished. 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. 0 through 3. exe only when the aspnet_banking_app is created or changed. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. }Puppet: Conditional exec using unless-option. Selector statement. However, if all you want is to. 0. Which it looks like it doesn't. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. If this parameter is set, then this exec will only run if the command has an exit code. 04; In Puppet, the combined configuration to be applied to a host is called a catalog, and the process of applying it is called a run. 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 exec unless doesn't appear to work how I expect. Search. The setuid/setgid/sticky digit is also a. ##Development. Modules that are supported by Puppet, Inc. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed.