Assignment operator. 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. where read = 4, write = 2, and execute/search = 1. Puppet’s behavior when declaring or assigning a class with both styles is undefined, and will sometimes work and sometimes cause compilation failures. rb instead of including them in the individual test files. 0. Remove the leading . Learn to use Bolt to execute commands on remote systems, distribute and execute scripts, and run Puppet tasks or task plans on remote systems that don’t have Puppet installed. } @choover Unfortunately that won't work. "Unless" statements work like reversed if statements. They take a control expression and a list of cases and code blocks, and. Topics. 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. Default: Undefined. supported Adds a new exec provider for executing PowerShell commands. The second one unzips it. Running Powershell command directly using Puppet exec resource. Puppet avoids destroying directories unless the force attribute is set to true. 0 how to ensure puppet exec run on every event triggered? 0 Puppet: How to execute a Exec resource if another Exec resource failed. Using onlyif allows you to use the return value of one or more commands as your. 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. . Puppet exec command runs in shell, but not via puppet. I don't think there's something built into Puppet. If /etc/init. Based on that documentation, a when statement was added: - name: add vhost sensu command: rabbitmqctl add_vhost /sensu when: rabbitmqctl list_vhosts | grep sensu. ##Limitations. Is this the best way to do this?. Using onlyif allows you to use the return value of one or more commands as your execution criteria; run the exec on a return of 0. cmd', provider => windows, subscribe => File ['folder_a'], logoutput => true, refreshonly => true, # Add this line. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. exe; Backslashes only. 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. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. 1. command => '/path/to/script. The problem is that the exec command is running before the group command. 4. 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. you should get something like -. You could use for instance (see reference doc)An exec will always run unless it has something to limit it. 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. That is, unless you can use purging with them. d/x exists then /bin/true is run (successfully). Puppet File resource runs despite Exec unless. There are a few important parameters to use when writing an exec resource with PowerShell. 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. 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. As for a "more intelligent way of excluding", I think you need to couch the question differently. Important: This API has severe problems — most notably, functions that use it will leak between environments. 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. 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 issue isn't that the package doesn't install, but rather that apt automatically starts the. Try again and this time show the failure. For. Puppet does not know about the files which are been modified by the shell script. That's what the ticket is about. h ), and the sub-processes it spawns. You can read more about it here. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. 1. All modules; Supported modules; Modules with tasks; Contribute. Hot Network Questions Is source of space-time curvature necessary?All groups and messages. If it always returns a false (non-zero) exit code then the two. I want to check, if a given string is inside an array and if it isn't, I want to execute the code inside. In this case specifying a directory is done by setting ensure to (unsurprisingly) directory. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. Local user accounts are often desirable for isolating applications requiring unique permissions. 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. The Puppet “exec” resource allows users to run commands and scripts on nodes. 2 Answers Sorted by: 6 test work for me at /usr/bin, so adding it to path could solve error. When evaluated, these tagged expressions can modify text in the template. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows?. exe /C tzutil. You can use onlyif, unless, creates and refreshonly to manage the case when you want the command to execute. 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. On reboot, the directory doesn't exist, strangely enough. I can fix this manually. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. I am new to Puppet, and I am trying to install a file if a package is installed. Getting started. Modules that are supported by Puppet, Inc. 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. The ordering arrow is a hyphen and a greater-than sign ( -> ). Ben is the Community and DevRel lead at Puppet, where he's been scared by production Puppet code for the last decade. For example, the value String represents the data type of strings. 4 Answers Sorted by: 24 Have you tried this? onlyif => "test ! -f /usr/local/bin/papply" Not sure if Puppet can use the '!' character Perhaps a better. 4. 1. With Bolt on the command line, run bolt task run exec command=<COMMAND>. at deployment time, but figured it would be best to have Puppet manage it. exe"", path. The 'unless' and/or 'ifonly' commands must run every time, though. Puppet exec unless doesn't appear to work how I expect. 0\powershell. The first one downloads ZIP file with binary (unless the binary has already been installed) and saves it to /tmp. 0. Modules that are supported by Puppet, Inc. 1. Puppet: Conditional exec using unless-option. Your fact could be something like this: #!/bin/bash if [ -f /my/file. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. Puppet provides a built-in exec type that is capable of executing commands. 1 Answer. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. I'm really confused about this, it seems like puppet can. d/pgsql. 1. My question is: I want to check if a file exists in the /tmp folder, and delete it before it starts downloading again. I would like to simply set a few environment variables in the . Adds a new exec provider for executing PowerShell commands. However; I would like promote these into our production branch. exec { 'foo': command => "/bin/bash -c 'source /etc/profile;. Machines receiving task requests must have SSH or. Connect and share knowledge within a single location that is structured and easy to search. 1', } Puppet supports if and unless statements, case statements, and selectors. Discover. Writing some classes for cassandra, one of them is to align clustering settings using puppet exec etc. 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. 5. The value that represents the data type of these values is Type. Explanation. It will also restart itself if exec['Do Stuf'] runs because of the way the relationship is defined. 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. It doesn't even cause clutter in the logs! See also. Puppet File resource runs despite Exec unless. How can I tell Puppet to stop a service on shutdown without keeping it running? 0. {"payload":{"allShortcutsEnabled":false,"fileTree":{"manifests":{"items":[{"name":"fcontext","path":"manifests/fcontext","contentType":"directory"},{"name":"boolean. Examples An if statement evaluates the given condition and, if the condition resolves to true, executes the given code. The --debug flag enables verbose logging. And as for the title of this question which I originally overlooked. Tasks use Scripts to execute them on remote machines. 1. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. This allows you to do more complex task operations, such as. Understand the syntax and function of the if, unless, case, and selector statements. 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. Bolt docs. you have no choice (to my knownledge) currently than to use the exec resource with creates + onlyif or unless directives. Puppet : How to use "defined" type as requirement inside exec. log. Find can exclude Named Pipes:-type c File is of type c: b block (buffered) special c character (unbuffered) special d directory p named. They take a control expression and a list of cases and code. puppet-modules; puppet-motd; puppet-ntp; puppet-perl; puppet-php; puppet-ssh; puppet-timezone; python-cloudlb; rackspace-monitoring-agent-plugins;. As a result, notifications are shown as a change on every Puppet run. If Puppet is managing the user that an exec should. Puppet noop When Executable does not exist yet. 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. All groups and messagesCreate A Puppet Configuration File. 0. Since I don't have Puppet 4. If the agent can perform the requested action at all, then it does not need sudo in order to do it, as it would be running with privilege in the first place. Adds a new exec provider for executing PowerShell commands. In conjunction with Facter, which makes details of a machine available as variables. Share. Note: Data sources can use the special lookup_options metadata key to request a specific merge behavior for a key. Wow. My notes on how to make it work for complex multi-exec configurations. To do this in Puppet you would have to use an Exec and invoke setfacl (if you were on Linux, for example) directly. Puppet avoids destroying directories unless the force attribute is set to true. Puppet strange behaviour of execs. 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. telnet < puppetmaster ip address dns name> 8140. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. PUP-11199. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. Puppet exec unless doesn't appear to work how I expect. 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. 2. execs will always run. Follow answered Jan 12, 2015 at 6:48. As a suggestion:I am using Puppet installed with the powershell module. How to clean up files created by Exec resources? 0. The exec resource from Puppet, the automation framework, is a mysterious beast. The documentation for Exec's onlyif tag says this: onlyifThe exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. The exit status when you run it directly and the exit status you expect it to return are irrelevant. As best I can tell by reading the source code the "holdable" feature is fundamentally flawed. TJL. On Windows, most exit codes are integers between 0 and 2147483647. TJL. Puppet strange behaviour of execs. The file will be generated in the directory you're currently in, unless you specify otherwise. 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. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. 2. Puppet: Conditional exec using unless-option. Puppet Exec tag onlyif troubles. exec command unless directory exists in puppet. notify is set on the user, and refreshonly is set on the exec. The way I check this is if the gopher user has the default uid of 13. Puppet: Conditional exec using unless-option. Connect and share knowledge within a single location that is structured and easy to search. You can create relationships between resources or groups of resources using the -> and ~> operators. 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 '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. Depending on your client's platform you can use ACLs to grant varied permissions to more than one group or user. config/autostart ]' is not qualified and no path was specified. 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). Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. 0 through 3. The way I check this is if the gopher user has the default uid of 13. Rename("new-guest")', unless => 'if (Get-WmiObject. Detecting if windows service is already installed using puppet exec. A second option would be to use the schedule metaparameter: schedule { 'everyday': period => daily, range => '1:00 - 1:59', } exec { 'do your thing': schedule => 'everyday', } That assumes that Puppet really will run only once per hour. supported Adds a new exec provider for executing PowerShell commands. Do you have reason to think that there's something wrong. The command parameter is the PowerShell code you want to run on your node. Puppet Exec with no command attribute. 0 on RHEL 6 and am doing package management via the exec resource. The onlyif and unless. 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. An example in Puppet 2. 0. Adds a new exec provider for executing PowerShell commands. Puppet File resource runs despite Exec unless. 0. Puppet: how to remove a directory and everything in it. Manage local groups . Puppet - Not able to find a declared class. Default: Undefined. Unless you tell your exec not to run for some reason or another, it will always run. properties. Need to copy a file via puppet only if a Windows MSI package is not installed. The . Your fact could be something like this: #!/bin/bash if [ -f /my/file. exec. 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. To use commands with pipe |, you must use the shell builtins work around with cmd. Improve this answer. In the modified question, the resources involved have such a relationship already. Iteration functions. Puppet FuturePuppet is a configuration management tool which helps you to build the infrastructure and maintain its state. It is a limitation of the underlying system. Tim Gosley’s four decades in puppetry include a wide spectrum of projects. jar file is actually an update for an application which is running as a service. -- Peter Bukowinski. where read = 4, write = 2, and execute/search = 1. All groups and messages. Unless you are sharing with the world, you don’t need most. How do you configure a Puppet exec to execute another command as part of onlyif. Another way to control an exec resource is to add a refreshonly => true attribute. 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,. 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. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. If you do need to do it via say the exec resource, then @16c7x's statement is correct. Glossary. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. However the in function seems to work with if only, when I use unless I get the following e. If the file does not exist then the Exec succeeds without running /bin/true. In Puppet, when using the exec resource, you can specify an "unless" attribute. exe /s "$ {timezone}"", unless => "cmd. 4. 2) that no other resource is set to 'notify' Exec ['command_two']. Sorted by: 0. How to set environment variables in Ubuntu OS using Puppet. First, change the require arrow to a notify arrow, from -> to ~>. 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. 1 Answer. Sometimes a simple creates isn't enough to determine if an exec should run or not. I am struggling with how to pass a puppet variable through to powershell. I have a script that really only needs to be run one time on a server, i. Windows puppet exec command file path. 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. A quick reference of syntax examples for the Puppet language. password is not getting changed to the default password and also chage. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Modules. As a result, the chown in the main command always is run, and that is reported. The logoutput parameter just logs the output to the. The ensure (see ensurable. Yes, you'd put a script into your modules path under a facts. I am using vagrant with puppet to set up virtual machines for development environments. So on a fresh installation, a refresh event will be received but the resource will. Modules that are supported by Puppet, Inc. 0. Puppet exec unless doesn't appear to work how I expect. Note that the example uses the unless parameter to make the resource idempotent. 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. So if you put an exec without conditions, it will execute the command on every run. Despite the -ExecutionPolicy parameter the PowerShell command will fail if execution is restricted via group policy. The statement itself is simple but the class doesn't contain any built-in conditional checks (similar to "unless =>" in exec class). Puppet exec unless doesn't appear to work how I expect. 6. but the command fails. ;) – ferventcoder. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. pp file. 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. Puppet check if a nagios resource exists. e. Setting the umask only has effect within the process that does it (see umask in sys/stat. These are command. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. Exec type's onlyif and unless in --noop documented. Sequence of Execs in Puppet. 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. 2. So, in order to avoid this I am adding the refreshonly parameter as follows. 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. Puppet Defines Desired State. Certainly, Notify is right out. On Windows, most exit codes should be integers between 0 and 2147483647. ), and can log the child process output and exit status. Selector statement. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. Try adding -Scope LocalMachine to your unless statement. "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 ). Puppet provides a built-in exec type that is capable of executing commands. Ensure directory tree exists. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. 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. you can check this quickly with the telnet command. If Puppet is managing the user that an exec should run as. This means that if a file is currently a directory,. All groups and messages. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. This can be used with bash on Linux, but with the PowerShell provider, it can run PowerShell on Windows and Linux nodes as well. Conditional statement examples. STILL REALLY WEIRD, but ok. You can use Puppet variables in an EPP template to customize its output. This differs from some other languages where looping constructs are special keywords. Plans. "Unless" statements work like reversed if statements. 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. Usage. Puppet: How to execute a Exec resource if another Exec resource failed. It applies the resource on the left before the resource on the right. Thus, a package can not both be installed at a particular version and marked held using dpkg. Puppet File resource runs despite Exec unless. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Puppet is an open-source configuration management tool from Puppet Labs. You can validate that a manifest's syntax is correct by using the command puppet parser validate. In conjunction with Facter, which makes details of a machine available as variables, this lets you write Puppet code that flexibly accommodates different platforms, operating systems. Puppet for Windows and Powershell Recipes. 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. The shortest path to creating better Puppet modules. The service will detect it is not running and start itself if required. exec { "Test": command => "/bin. Similarly, we can use unless, unless execute the command all the time, except the command under unless exits successfully. Expand. The command of an exec resource, unless the executable requires backslashes, e. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. If the query specified in the unless parameter returns one or more records, the main statement is skipped. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. The notifying arrow is a tilde and a greater-than sign ( ~> ). It would be better to explicitly "exit 0" whenever you do not "exit 1". 2. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. There are a number of parameters you can set. Puppet: exec onlyif value is not equal. "Unless" statements work like reversed if statements. Puppet has two main ways to declare classes: include-like and resource-like. There are a few important parameters to use when writing an exec resource with PowerShell. Puppet running exec before other commands. Search. Learn more See the exec documentation for the command, unless, and onlyif. Thanks!. See “Case Matching” below for details on how Puppet matches different kinds of cases. Purging resources in Puppet requires two conditions: a type which supports listing instances (at least one provider has a self. For detailed information about built-in types, see the Resource type reference. Googling unless ansible showed this document about when. However, if all you want is to. For information on all core types, including supported types in the puppet-agent package, see. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. Discover. 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/. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. Hot Network Questions Short video of insurance salesman summoning a demon who also is into insurance Sum of Rows of Vandermonde Matrix Mulliken Labels: How do I tell apart E, doubly degenerate, symmetry apart from T, triply degenerate, symmetry) for a molecular orbital?. 1 on CentOS, and Puppet clients 3. 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. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. exe only when the aspnet_banking_app is created or changed. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. When something isn't builtin to file, I generally just to turn to an puppet exec declaration. If invoked by a normal user, it checks against the list of unprivileged containers stored for this particular user. escape. Puppet check if a nagios resource exists. 5. . refreshonly: Only run the command if the resource is refreshed due to a notify or subscribe metaparameter; cwd: Sets the working directory.