The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 0. Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. 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. Scripts file serving mount. Note: Data sources can use the special lookup_options metadata key to request a specific merge behavior for a key. 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. Default: Undefined. how do I tell 'puppet apply' that the package is already installed) But you really need something like an onlyif or unless or this is going to execute every 30 minutes and that breaks the idempotent rule we try and apply with Puppet code where things only change if they need correcting. Alternative 1: create a bash script: ugly Exec resources and temp files. The commands in an Exec resource either have to be fully qualified (i. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. Hot Network Questions To find rate of change of area of triangle when rate of change and value of length of base and height are 3cm/min, 5cm/min and 8cm,10cm respectively. If this parameter is set, then this exec will only run if the command has an exit code. 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. Other built-in types. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. Puppet: 'creates' does not create. Any recommendations on running. g. rb file or in the individual test files, and configure Puppet and Bolt for the testing environment. 3. Puppet: deploy file unless it exists. Sequence of Execs in Puppet. 1. If the file does not exist then the Exec succeeds without running /bin/true. Puppet File resource runs despite Exec 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. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. This is a textbook case where you should write the test first, and the code after. Larger exit codes on Windows can behave inconsistently across different tools. 0. Publish a module; Topics. Puppet exec - fails to execute command as user. 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. 0. How to ensure Service is restarted before commands from Exec resource execute? 0. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. 1. 3. 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. Is this the best way to do this?. For example, to view the free disk space of a host, run: With. My notes on how to make it work for complex multi-exec configurations. This runs the first-exec, and unless /var/exists it runs the second-exec. 2. , 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. d directory, then puppet agents pull it down and execute it on every run and provide the fact. 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. Puppet running exec. Puppet exec unless doesn't appear to work how I expect. The problem also happens to my start command which also use bundle exec: after puppet finished dea_ng::install and run dea_ng::service, the command below did not work unless I execute it manually on the client machine. 1. Adds a new exec provider for executing PowerShell commands. 0. in. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. The issue is, while first two are correctly executed under "user", third command is executed in. 2. Follow#####unless Runs the exec, unless the command returns 0. supported. Share. It looks like you're having Puppet execute a shell script to perform the installation. 0 to 5. If Puppet is managing the user that an exec should run as. Puppet File resource runs despite Exec unless. Only supported on Windows Server 2003 and above, and Windows 7 and above. No find command is run; the test just passes by examination of the argument. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands. 1. An example in Puppet 2. Puppet - Check if package is installed, but do not require it. Plans. properties. 0. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. exe"", path. Case statement. 2) that no other resource is set to 'notify' Exec ['command_two']. (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. Just. Only supported on Windows Server 2003 and above, and Windows 7 and above. You can use the unless parameter to only execute the statement in certain states. Your fact could be something like this: #!/bin/bash if [ -f /my/file. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. my theme is puppet should only execute if this if $::facts['memorysize'] >= '4. e. Valid options: String. In this case specifying a directory is done by setting ensure to (unsurprisingly) directory. g. This can have severe impacts to the machines, especially if security settings are defined in a wrong way. Try again and this time show the failure. exe only when the aspnet_banking_app is created or changed. To do this in Puppet you would have to use an Exec and invoke setfacl (if you were on Linux, for example) directly. supported Adds a new exec provider for executing PowerShell commands. That is always handled by the service resource. execute (command, options = NoOptionsSpecified) ⇒ Puppet::Util::Execution::ProcessOutput (also: util_execute) Executes the desired command, and return the status and output. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. 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. sh', onlyif => systemctl service_trendmicro, # which system should return. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. An exec resource, which starts a powershell script, which starts a PowerShell process, which starts a CMD process, which runs a batch file (with an invalid path), which runs another batch file, which processes some kind of response file. Publish a module; Topics. 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. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. With PE on the command line, run puppet task run exec command=<COMMAND>. 1. NORTHWEST LIBRARY FEDERATION. Certainly, Notify is right out. 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. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. 1 on many Windows machines. Puppet Exec resource to apply only when a File changes. Yes, you'd put a script into your modules path under a facts. 0 a new feature "relationship syntax" was introduced. 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. It is. 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'. Connect and share knowledge within a single location that is structured and easy to search. exec {'rename-guest': command => '(Get-WMIObject Win32_UserAccount -Filter "Name='guest'"). These are command. But Puppet is quite hard to learn. Puppet Exec resource to apply only when a File changes. 2. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. txt 2>&1. 0. require means that the the resource passed to require must be applied before the calling resource. 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. In your case, it sounds like you want the exec to run only when your file changes. 0. Puppet noop When Executable does not exist yet. Glossary. The 'creates', 'onlyif', and 'unless' parameters all provide mechanisms for Puppet to decide that an Exec resource is already in sync without running its (main) command. Expressions are statements that resolve to values. 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. Discover. ), and can log the child process output and exit status. See the Puppet Type Reference for the exec resource and look for unless and onlyif. 0 a new feature "relationship syntax" was introduced. In your case, the Exec is always successfully applied. 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. Puppet File resource runs despite Exec unless. 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. 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. Search. group. Puppet: exec onlyif value is not equal. However; I would like promote these into our production branch. 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/. Resource default for the exec type A resource default statement set default attribute values for a given resource type. 1st - 2nd Smithers Midsummer Festival Smithers BC. Try adding -Scope LocalMachine to your unless 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. Try checking the puppet master log at /var/log/puppetmaster. 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. Puppet's if statement allows you to change the manifest behavior based on the value of a variable or an expression. The --debug flag enables verbose logging. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. exe -ExecutionPolicy ByPass -command "here any command on powershell ""} On Thursday, October 9, 2014 4:22:14 PM UTC-3, Paul Ponzeka. Puppet exec - fails to execute command as user. For example, to view the free disk space of a host, run: With. the unless attribute provides a condition. 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. Modules that are supported by Puppet, Inc. I will show how these work in the example below. Puppet strange behaviour of execs. unless. Thanks!. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. exec command unless directory exists in puppet. You can create relationships between resources or groups of resources using the -> and ~> operators. g. Teams. Any command in an exec resource must be able to run multiple times without causing harm — that is, it must be idempotent. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Puppet PowerShell Execution. Puppet: Exec from class when Exec from another class is successful. 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. . The ordering arrow is a hyphen and a greater-than sign ( -> ). 2. exec { 'update hostname': command => 'hostname VM01', path => '/usr/bin:/usr/sbin/:/bin:/sbin', unless => '[ "$(hostname)" == "VM01" ]', } You need to. a sysadmin might manually run it. 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. 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. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Puppet File resource runs despite Exec unless. 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. 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. Adds a new exec provider for executing PowerShell commands. This will cause puppet to. Let’s take a look there: ls -la /etc/puppet. "Unless" statements work like reversed if statements. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. Thus:I only want to execute that if the hostname is not what it should be: exec { 'update hostname': command => 'sudo hostname VM01', unless =>. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. . ##Development. notify is set on the user, and refreshonly is set on the exec. Case statements will execute a maximum of one code block. He just built and performed the lead puppet for a Toronto television pilot. telnet < puppetmaster ip address dns name> 8140. However, if all you want is to. Sorted by: 18. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false,. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. 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/. e. That will run every time puppet runs. Provides integrated testing tools and a command line interface to help you. exe /c C:/test. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n ${lxcname} >/dev/null. 1. Puppet 3 is no longer supported, but we. 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 advanced default params. Puppet File resource runs despite Exec unless. Sort by Year. unless: A shell command that is run as a test to determine if the command should not run. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. John. Puppet check if a nagios resource exists. 1. Since Puppet 2. 5. When a lambda requires extra information, pass it to a function that provides the information and to evaluate the code, possibly multiple times. You may need to reboot the system after enabling if SELinux was. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. Note that the example uses the unless parameter to make the resource idempotent. Create exec resources with metadata to ensure it is idempotent. 1 Unless issue with Puppet. exec { 'mysql post cmd1': command => 'whatever', require => Mysql::Db['cosmed'], unless => 'command to check that this exec has been applied. With Bolt on the command line, run bolt task run exec command=<COMMAND>. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. #####unless Runs the exec, unless the command returns 0. The generic way for "manually" creating a service in Windows is to use the sc. 6. 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. 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. Sometimes I want to run a command one time on all servers, e. The Puppet “exec” resource allows users to run commands and scripts on nodes. Puppet: Exec from class when Exec from another class is successful. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. How can I tell Puppet to stop a service on shutdown without keeping it running? 0. 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. 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 the details about how PowerShell is executed, because you can run PowerShell. you can check this quickly with the telnet command. Puppet Exec with no command attribute. Adding a / to the end of a file name isn't enough to tell puppet to. 2. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. Adds a new exec provider for executing PowerShell commands. 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. Puppet exec unless doesn't appear to work how I expect. 6. Back to overview of wls_exec. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. if statement, with in expression. As Forrest already said, it's not what puppet is designed for. e. Teams. 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. Scripts file serving mount. I am new to Puppet, and I am trying to install a file if a package is installed. After changing topology strategy, cassandra should rebuild keyspace - this is where puppet comes. You can also set variables within the manifest, which can change the. So having Puppet do it automatically will help with that. Since I don't have Puppet 4. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. 0, to 5. Puppet strange behaviour of execs. You can read more about it here. JULY . Only supported on Windows Server 2003 and above, and Windows 7 and above. The ensure (see ensurable. but the command fails. 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. Iteration features are implemented as functions that accept blocks of code ( lambdas ). So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. d/ Prevents Puppet from considering. 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. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. 26th - 28th Surrey Sparks Stages - Puppet-making workshops Surrey BC. (See the notes on refreshing below. Local user accounts are often desirable for isolating applications requiring unique permissions. The whole idea of adding this step is to check and execute the command- makeswap only if the swap is not in place. Installing servers with Puppet is a real plus compared to shell (yeah captain Obvious!). gz packages are copied to the remote systems during every puppet run, while these files where removed after installation and software has been. Windows shared folder is a folder that has been configured to be accessed by multiple users over a network. 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. The exit status when you run it directly and the exit status you expect it to return are irrelevant. Unless you tell your exec not to run for some reason or another, it will always run. Puppet Exec resource to apply only when a File changes. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. To run tasks with Puppet Bolt, Bolt 1. 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 I try creating it as my process user, I get permission denied. When something isn't builtin to file, I generally just to turn to an puppet exec declaration. If none of the cases match, Puppet will do nothing and move on. The best solution would actually be to use something like Augeas to examine the file and modify as necessary. Puppet avoids destroying directories unless the force attribute is set to true. Explanation Sometimes a simple creates isn't enough to determine if an exec should run or not. 0. Detecting if windows service is already installed using puppet exec. Maybe. TJL. 6. The way I check this is if the gopher user has the default uid of 13. (2) it is unclear from your description whether the Exec's command is actually run (vs. 1. Puppet have a defined resource fail if a variable is set to undef. 2 install on Ubuntu 18. Sometimes a simple creates isn't enough to determine if an exec should run or not. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. See provider/exec. Aside from being good. Another way to control an exec resource is to add a refreshonly => true attribute. If /etc/init. 2. This can be used with bash on Linux,. Setting the umask only has effect within the process that does it (see umask in sys/stat. pp file. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . 5. 1. Which it looks like it doesn't. Q&A for work. exe utility (note the space after and lack thereof before the = character): exec { "install_service" : command => "$ {Sys32}sc. This module adds a powershell provider to the exec type, which enables all of the exec parameters, such as creates, onlyif, unless, etc. 2. Wow. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. But you really need something like an onlyif or unless or this is going to execute every 30 minutes and that breaks the idempotent rule we try and apply with Puppet code where things. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. config/autostart ]' is not qualified and no path was specified. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. 1. That's what the ticket is about. The command parameter is the PowerShell code you want to run on your node. at deployment time, but figured it would be best to have Puppet manage it. Adds a new exec provider for executing PowerShell commands. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. 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. Autorequires: If Puppet is managing an exec’s cwd or the executable file used in an exec’s command, the exec resource will autorequire those files. Doing some research, and looking at blog posts, I know that the structure of my code should be something along the lines of (I know it's not correct): exec {'function_name': # the script that downloads/installs/activates etc. <%= EXPRESSION %> — Inserts the value of a single expression. I will show how these work in the example below. exec { ‘SETHELLO’: command => ‘Add-Content -Path c: est. 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. Creating a directory is another task that is handled by the powerful and flexible file type. PUP-11199. g. Connect and share knowledge within a single location that is structured and easy to search. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. The default behavior is to report the exit code only for the last command in the pipeline. domain. 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. 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. Default: Undefined. 163k 8 82 159. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. Best practices with exec is to use onlyif and unless to test for whatever action the exec is supposed to have performed. Puppet exec command runs in shell, but not via puppet. All modules; Supported modules; Modules with tasks; Contribute. As a suggestion:I am using Puppet installed with the powershell module. {"payload":{"allShortcutsEnabled":false,"fileTree":{"lib/puppet/type":{"items":[{"name":"file","path":"lib/puppet/type/file","contentType":"directory"},{"name. On Windows, most exit codes should be integers between 0 and 2147483647. As a result, notifications are shown as a change on every Puppet run. The Forge is an online community of Puppet modules submitted by Puppet and community members. You should never use this API unless you absolutely must support Puppet 3. Long answer. Doing some research, and looking at blog posts, I know that the structure of my code should be something along the lines of (I know it's not correct): exec {'function_name': # the script that downloads/installs/activates etc. Puppet: Exec from class when Exec from another class is successful. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. The 'unless' and/or 'ifonly' commands must run every time, though. asked Apr 1, 2022 at 20:47.