There are a few important parameters to use when writing an exec resource with PowerShell. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. 0. 20. 3. 0. Puppet: exec onlyif value is not equal. Puppet File resource runs despite Exec unless. Puppet Defines Desired State. If a manifest has no syntax errors, the tool outputs nothing. In any given case, you should use whichever approach makes sense. indicates that the shell tried to execute '3' as a command, and, unsurprisingly, did not find it. Puppet: deploy file unless it exists. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. Execute installers from shared (samba) folder instead of copy it first to agent system does not solve the issue. Unless you are sharing with the world, you don’t need most. The notifying arrow is a tilde and a greater-than sign ( ~> ). 0 a new feature "relationship syntax" was introduced. h ), and the sub-processes it spawns. Adds a new exec provider for executing PowerShell commands. If /etc/init. d/ Prevents Puppet from considering. Certainly, Notify is right out. Using onlyif allows you to use the return value of one or more commands as your. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platformsExpand. The ensure (see ensurable. And elsewhere you can add to the parameters for. Since Puppet 2. 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. Since moving to Puppet 5. Because the Exec requires the File to (conditionally) be applied first, its own unless parameter would not be evaluated in time to affect that, even if there were a way it could do. 0. Usage. 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. 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. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows?. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. Sorted by: 0. If it would be sufficient to emit the message into the master 's log, then there is a set of functions for that purpose. run this on your node -. 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. (See the notes on refreshing below. Manage local groups . Default: Undefined. I don't think there is an exception handling in a programmatic way you would like in Puppet. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. Discover. An example in Puppet 2. Try again and this time show the failure. Usage. fail when a file exist in puppet. Another way to control an exec resource is to add a refreshonly => true attribute. Setting the umask only has effect within the process that does it (see umask in sys/stat. As a result, the chown in the main command always is run, and that is reported. Puppeteer Script Works Local But Not On EC2 AWS. Modules that are supported by Puppet, Inc. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. 0. Based on that documentation, a when statement was added: - name: add vhost sensu command: rabbitmqctl add_vhost /sensu when: rabbitmqctl list_vhosts | grep sensu. It would be better to explicitly "exit 0" whenever you do not "exit 1". So in. 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. Wow. Right now I have: exec { 'first command': command => "some command" path => '/usr/bin', notify => Exec ["second command"], } exec {. Here is my code (Puppet): exec { 'Download mediawiki to temp': cwd. Validate your manifest with puppet parser validate. I want to check, if a given string is inside an array and if it isn't, I want to execute the code inside. With Bolt on the command line, run bolt task run exec command=<COMMAND>. You can read more about it here. As an example I have a powershell script that opens notepad:. On Windows, most exit codes should be integers between 0 and 2147483647. 0 through 3. Plans. Note: Data sources can use the special lookup_options metadata key to request a specific merge behavior for a key. 0. This can be used with bash on Linux,. Running Powershell command directly using Puppet exec resource. JULY . This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. domain. g. 0. Similarly, we can use unless, unless execute the command all the time, except the command under unless exits successfully. Adds a new exec provider for executing PowerShell commands. exe and specifying a file path in the command line, be sure to use backslashes. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. 2 install on Ubuntu 18. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. DevOps. If this parameter is set, then this exec will only run if the command has an exit code. I have Puppet master 3. 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. In this case specifying a directory is done by setting ensure to (unsurprisingly) directory. For example, to view the free disk space of a host, run: With. – 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. puppet exec command issue. Adds a new exec provider for executing PowerShell commands. Exec type's onlyif and unless in --noop documented. Machines receiving task requests must have SSH or. e. 0. Try checking the puppet master log at /var/log/puppetmaster. That's what the ticket is about. Puppet File resource runs despite Exec unless. How to ensure Service is restarted before commands from Exec resource execute? 0. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. service ntpd stop ntpdate ntp3. If you declare users as virtual resources , you can then use 'realize' or the collection syntax ( User <|. onlyif and unless in --noop documented. Try adding -Scope LocalMachine to your unless statement. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. In the modified question, the resources involved have such a relationship already. 0. No find command is run; the test just passes by examination of the argument. 12 behavior got changed to match the intention. 5. This differs from some other languages where looping constructs are special keywords. It looks like you're having Puppet execute a shell script to perform the installation. e. 6. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. You can create relationships between resources or groups of resources using the -> and ~> operators. 1. They take a Boolean condition and an arbitrary block of Puppet code, evaluate the condition, and if it is false, execute. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. I am trying to set some powershell inline cmdlets within puppet recipes in order to install other msi packages and powershell scripts. sh', } Keep in mind that puppet is for enforcing the state defined in the manifests rather than running chains of. Puppet is an amazingly powerful and flexible tool. 0 Puppet strange behaviour of execs. Expressions are statements that resolve to values. 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. Please qualify the command or specify a path. Maybe. when i do it manually ("CREATE ROLE replica ENCRYPTED PASSWORD '123';") it does work, but for some reason it does not work from the puppet. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. I am trying to run a Powershell command directly using Puppet exec resource instead of specifying path to the Powershell script. Follow answered Jan 12, 2015 at 6:48. 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. Tim Gosley’s four decades in puppetry include a wide spectrum of projects. Sends an arbitrary message, specified as a string, to the agent run-time log. Running Powershell in Puppet. exe only when the aspnet_banking_app is created or changed. Overtime dhcp package is upgraded, RPM returns the original permission and owner which leads to DHCP issues (foreman-proxy is unable to modify files). e. It applies the resource on the left before the resource on the right. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. As for a "more intelligent way of excluding", I think you need to couch the question differently. 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. Puppet File resource runs despite Exec unless. Executables, zips and or tar. exec. Sometimes I want to run a command one time on all servers, e. [Unit] Description=My Webapp Java REST Service [Service] User=ubuntu # The configuration file application. lst contents. 1. Tasks use Scripts to execute them on remote machines. 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. telnet < puppetmaster ip address dns name> 8140. The Puppet Design Philosophy Before we begin to explore best practices with Puppet, it’s valuable to understand the reasoning behind these recommendations. } Puppet: Conditional exec using unless-option. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. Ensure directory tree exists. 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. For example, to view the free disk space of a host, run: With. 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. Teams. Your fact could be something like this: #!/bin/bash if [ -f /my/file. To use the BoltSpec library functions, include them in either the spec_helper. As per the exec documentation, the onlyif/unless exec command result will override the receipt of refresh. I have a script that really only needs to be run one time on a server, i. 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,. 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. 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. 6. 0\powershell. I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. Puppet has two main ways to declare classes: include-like and resource-like. 3. Thus, a package can not both be installed at a particular version and marked held using dpkg. Puppet: 'creates' does not create a new file. Puppet: Exec from class when Exec from another class is successful. 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. Share. After changing topology strategy, cassandra should rebuild keyspace - this is where puppet comes. 1 on many Windows machines. The second one unzips it. ps1', } Puppet uses the same. Puppet avoids destroying directories unless the force attribute is set to true. wow! My recommendation is: throw it away and start over. a sysadmin might manually run it. You can use Puppet variables in an EPP template to customize its output. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. 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. In your case, it sounds like you want the exec to run only when your file changes. Sep 13, 2012 at 15:51. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. 0. I would like to add a number of control gates into my manifest via onlyif and unless. 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. I'm really confused about this, it seems like puppet can. 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. Q&A for work. String comparison using in doesn't work with unless. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. All modules; Supported modules; Modules with tasks; Contribute. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. Let's assume that you can write a find command to list all of your files that you want deleted. This means that if a file is currently a directory,. "exec / onlyif" and "exec / unless" are kind of measures-of-last-resort in the Puppet world (now, having said that, I must admit that I'm completely guilty of using it myself on occasion :p ). e. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. With PE on the command line, run puppet task run exec command=<COMMAND>. The --debug flag enables verbose logging. Menu Log In List your. 1. Puppet exec unless doesn't appear to work how I expect. 0. , unless you really intend to resolve that path against the working directory. First I would like to use booleans as defined in Hiera [ auto lookup function ]. However, the problem with the exec is that it is not idempotent. Classes generally configure large or medium-sized chunks of functionality, such as all of. ##Limitations. bundle exec rake dir_server:run [config/dea. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Learn more about TeamsIt's just not something you can do with vcsrepo unless you can override path (you can in exec). Valid options: String. He just built and performed the lead puppet for a Toronto television pilot. The statement itself is simple but the class doesn't contain any built-in conditional checks (similar to "unless =>" in exec class). 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. 0 on RHEL 6 and am doing package management via the exec resource. 0. 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. The exit status when you run it directly and the exit status you expect it to return are irrelevant. 5. This runs the first-exec, and unless /var/exists it runs the second-exec. Valid options: String. exec { ‘SETHELLO’: command => ‘Add-Content -Path c:\test. 0 a new feature "relationship syntax" was introduced. I'm experiencing a very strange behavior with Puppet's Exec type. . Background: I am upgrading our lxc puppet module to support the emerging unprivileged LXC technology. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. 0 to 5. 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. Adds a new exec provider for executing PowerShell commands. gz packages are copied to the remote systems during every puppet run, while these files where removed after installation and software has been. Q&A for work. This will not work because the Package resource type does not have an 'unless' parameter -- that's a feature specific to Exec resources. 1. Running Powershell command directly using Puppet exec resource. Puppet can execute binaries (exe, com, bat, etc. Puppet is about describing state and making sure things only have to run once. Your exec will run only if pgrep returns 0. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. unless. Expand. "Unless" statements work like reversed if statements. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. How to set environment variables in Ubuntu OS using Puppet. Step Zero: Enable SELinux! Enabling SELinux is done by including the site_selinux class somewhere in your Puppet configuration. if reason variable null or empty, halt with an explanatory message; Bash's -z conditional operator can catch both null and empty cases, including when the value is null on account of the variable not being set at all, but remember that it is evaluated after the command is fully expanded. 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. There are a few important parameters to use when writing an exec resource with PowerShell. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. 2 but are only using architecture-appropriate. E. 1. The onlyif parameter is defined as. You can use the unless parameter to only execute the statement in certain states. When I apply the manifest for the first time, it works correctly. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. My understanding is that if the second exec fails, the defined resource type should NOT be refreshed. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Q&A for work. And after that, run puppet agent with pluginsync enabled, and you can use custom type like this:. This will cause puppet to. Backslashes MUST be used in:. Puppet File resource runs despite Exec unless. /usr/bin/test instead of test) or the path attribute of that Exec resource has to be set. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. Puppet provides a built-in exec type that is capable of executing commands. However the in function seems to work with if only, when I use unless I get the following e. 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. This means you. You can also set variables within the manifest, which can change the. Puppet attempts to execute directories from /etc/init. Puppet Exec with no command attribute. Modules. notify is set on the user, and refreshonly is set on the exec. Puppet Exec with no command attribute. -- Peter Bukowinski. Sort by Year. 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. rb instead of including them in the individual test files. But it when I try it, it is. supported Adds a new exec provider for executing PowerShell commands. November 8, 2023. <%= EXPRESSION %> — Inserts the value of a single expression. The exec resource from Puppet, the automation framework, is a mysterious beast. The commands in an Exec resource either have to be fully qualified (i. TJL. Share. The Win32 APIs. Hot Network Questions tcpdump -vvv is not verbose enough. 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. Puppet - Not able to find a declared class. 2. 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. Assignment operator. Re-writing scripts into manifests is time-consModules that are compatible with Puppet Development Kit (PDK) validation and testing tools. I am trying to use code like this: exec { 'example':. 1. Puppet: Conditional exec using unless-option. 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. 0 Output on one command cause next one to fails. All groups and messagesCreate A Puppet Configuration File. And as for the title of this question which I originally overlooked. 1. 7. However currently I am struggling to figure out how to do this. if statement, using expressions and facts. 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. Setting noop=>false means your file resource will always be applied, even in a noop run. 1. I would like to simply set a few environment variables in the . ” These values represent the other data types. 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). Having chosen an Exec instead, it was unnecessary to introduce sudo into the command. pp in the Puppet command prompt. The difference between platform engineering and DevOps is pretty nuanced. 1. If the path isn’t set, you must fully qualify the command’s name. The exit status when you run it directly and the exit status you expect it to return are irrelevant. Thanks!. 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. Puppet exec - fails to execute command as user. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. The whole idea of adding this step is to check and execute the command- makeswap only if the swap is not in place. How do I make make puppet module break if condition not met. , for example, the Exec resource being. Since I don't have Puppet 4. I want to check if the file exists in the client. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. Puppet exec resource; Puppet classes and modules; Puppet Forge modules; Puppet Express; Puppet Express 2; Puppet 4 : Changes; Puppet --configprint; Puppet with Docker; Puppet 6. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. Do you have reason to think that there's something wrong with. 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. 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. 2. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. exe invocation as the command. You can read more about it here. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. 163k 8 82 159. You can use expressions almost anywhere a value is required. Puppet does not support a shell provider for Windows, so if you want to execute shell built-ins (such as echo ), you must provide a complete cmd. The value that represents the data type of these values is Type. Puppet File resource runs despite Exec unless. Puppet provides a built-in exec type that is capable of executing commands. 1. I assume the default behavior of the parser is such that if it receives an array. Conditional statement examples. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. exe /c java -jar foo. Modules that are supported by Puppet, Inc. So, in order to avoid this I am adding the refreshonly parameter as follows. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. The exec has refreshonly => true, which allows Puppet to run the command only when some other resource is changed. Resource default for the exec type A resource default statement set default attribute values for a given resource type.