Plans are sets of tasks that can be combined with other logic. Hot Network Questions tcpdump -vvv is not verbose enough In which situations or societies do people not take turns to. If executed as root, the lxc-info checks for the name among the root containers. Connect and share knowledge within a single location that is structured and easy to search. Ensure directory tree exists. 2. Let's assume that you can write a find command to list all of your files that you want deleted. 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. Puppet 7. Puppet: Conditional exec using unless-option. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. e. 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. They take a control expression and a list of cases and code. 0. 2. Case statements will execute a maximum of one code block. Over the years of using puppet I've noticed that people often come up with the same kind of. 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 agent -td --evaltrace --profile > agent_debug. That is, unless you can use purging with them. Adds a new exec provider for executing PowerShell commands. Case statement. unless: A shell command that is run as a test to determine if the command should not run. Sends an arbitrary message, specified as a string, to the agent run-time log. bundle exec rake dir_server:run [config/dea. Load 7 more related questions Show fewer. I don't think there is an exception handling in a programmatic way you would like in Puppet. Puppet: Exec from class when Exec from another class is successful. 🔩 Tip: Unless your module also includes tests for manifest code, add the BoltSpec helpers and configure Puppet and Bolt in spec_helper. 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). Explanation. To do this in Puppet you would have to use an Exec and invoke setfacl (if you were on Linux, for example) directly. After changing topology strategy, cassandra should rebuild keyspace - this is where puppet comes. supported Adds a new exec provider for executing PowerShell commands. ), and can log the child process output and exit status. Basically, it makes it so you can use PowerShell Modules exactly like you use Puppet modules. Expressions are statements that resolve to values. Expressions can be compounded with other expressions, and the entire combined expression resolves to a single value. . Since Puppet 2. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. If you do need to do it via say the exec resource, then @16c7x's statement is correct. 1. Right now I have: exec { 'first command': command => "some command" path => '/usr/bin', notify => Exec ["second command"], } exec {. I want to check if the file exists in the client. The exit status when you run it directly and the exit status you expect it to return are irrelevant. rb instead of including them in the individual test files. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. TJL. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Note: These two behaviors should not be mixed for a given class. Puppet strange behaviour of execs. puppet-modules; puppet-motd; puppet-ntp; puppet-perl; puppet-php; puppet-ssh; puppet-timezone; python-cloudlb; rackspace-monitoring-agent-plugins;. Puppet: Exec from class when Exec from another class is successful. Adds a new exec provider for executing PowerShell commands. 1 run Exec only if another Exec ran. There are times when you have a complex script that you just need to get into configuration management. puppet exec returned 1 instead of [0] 1. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. Modules. But it is certainly worth verifying the type and value of your variable. Modules that are supported by Puppet, Inc. Here is my code, don't worry about variable which is already set in original code. 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. 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. That will run every time puppet runs. It looks like you're having Puppet execute a shell script to perform the installation. puppet exec command issue. The default behavior is to report the exit code only for the last command in the pipeline. require means that the the resource passed to require must be applied before the calling resource. 0. Discover. The problem is that the exec command is running before the group command. g. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. 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. What I am looking for is a way to make the exec command dependend on the checksums of arbitrary other files:Adds a new exec provider for executing PowerShell commands. We will focus on the language terminology, syntax and. 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. Puppet: how to remove a directory and everything in it. DevOps. 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. 1. 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. The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. To use commands with pipe |, you must use the shell builtins work around with cmd. I have a script that really only needs to be run one time on a server, i. The Puppet “exec” resource allows users to run commands and scripts on nodes. . So if you put an exec without conditions, it will execute the command on every run. In addition I need to run only if it detects an older version of the and is not on a certain server and then install the new version. Puppet does not execute statements in linear order (as is the code written) unless you define some constraints. This module is particularly helpful if you need to run PowerShell commands but don't know the details about how PowerShell is. Puppet Development Kit. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. First, change the require arrow to a notify arrow, from -> to ~>. How would the watchdog service know the Puppet exec failed? I don't want to remove the dir or run the exec if the directory does exist and the first exec was completed successfully. Discover. I will show how these work in the example below. The issue isn't that the package doesn't install, but rather that apt automatically starts the. Scripts file serving mount. 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. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. exec power shell script having corrective action every time. I do not account that a bug, however, as (1) it's probably more useful behavior, and (2) it's consistent with the example in the docs. November 8, 2023. exe only when the aspnet_banking_app is created or changed. This tells Puppet to run aspnet_regiis. Modules that are supported by Puppet, Inc. Conditional statement examples. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. The way I check this is if the gopher user has the default uid of 13. Note that the example uses the unless parameter to make the resource idempotent. 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. When you share a folder on your computer, other users on the same network can access the files and folders inside it. Running Powershell command directly using Puppet exec resource. So having Puppet do it automatically will help with that. command => '/path/to/script. 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. Publish a module; Topics. First I would like to use booleans as defined in Hiera [ auto lookup function ]. See the Puppet Type Reference for the exec resource and look for unless and onlyif. 0. The risk of course is that Puppet runs more than once in that hour, e. Puppet File resource runs despite Exec unless. Puppet can execute binaries (exe, com, bat, etc. password is not getting changed to the default password and also. If. Teams. 2. 2. Local user accounts are often desirable for isolating applications requiring unique permissions. service ntpd stop ntpdate ntp3. And as for the title of this question which I originally overlooked. Puppet File resource runs despite Exec unless. notify is set on the user, and refreshonly is set on the exec. 3 puppet exec returned 1 instead of [0] 0 Puppet strange behaviour of execs. Puppet Exec with no command attribute. Resource default for the exec type A resource default statement set default attribute values for a given resource type. 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. In your case, it sounds like you want the exec to run only when your file changes. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. The value that represents the data type of these values is Type. Unless you tell your exec not to run for some reason or another, it will always run. 5. Puppet strange behaviour of execs. service. exec command unless directory exists in puppet. Puppet Exec resource to apply only when a File changes. supported Adds a new exec provider for executing PowerShell commands. I do not account that a bug, however, as (1) it's probably more useful behavior, and (2) it's consistent with the example in the docs. The problem is Exec['apt-update'] is always performed (i. Puppet: 'creates' does not create. Puppet does not know about the files which are been modified by the shell script. 6. Sort by Year. 3. at deployment time, but figured it would be best to have Puppet manage it. The documentation referenced is about something different: the 'unless' statement. 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. Puppet Exec tag onlyif troubles. rb file or in the individual test files, and configure Puppet and Bolt for the testing environment. Backslashes MUST be used in:. The command specified causes the exec to be triggered unless the command specified returns a success (zero) exit status. I am new to Puppet, and I am trying to install a file if a package is installed. Puppet - Check if package is installed, but do not require it. Expand. So then intention and documentation has always been the same since 4. This module adds a powershell provider to the exec type, which enables exec parameters, listed below. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. As a result, the chown in the main command always is run, and that is reported. 3 I am experiencing puppet exit code 1 when running any powershell script that starts or invokes a process. This can be used with bash on Linux,. The . run this on your node -. For detailed information about built-in types, see the Resource type reference. – tom. "Unless" statements work like reversed if statements. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. 1. 1. yml] &. (2) it is unclear from your description whether the Exec's command is actually run (vs. Search. Puppet Exec tag onlyif troubles. You might want to use the refreshonly parameter on your exec. Note: PowerShell variables (such as $_) must be escaped in Puppet manifests either using backslashes or single quotes. I would like to simply set a few environment variables in the . But Puppet is quite hard to learn. No find command is run; the test just passes by examination of the argument. 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. Thanks!. e. Is there a way to tell puppet to only execute command if one of the files does not exist? 1. 2. I'm really confused about this, it seems like puppet can. This can be used with bash on Linux, but with the PowerShell provider , it can run PowerShell on Windows and Linux nodes as well. 1. Install Puppet Agent on bulk windows server. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. 9]: FAILED! => {"failed": true, "msg": "The conditional check 'rabbitmqctl. Improve this answer. Puppet - How to purge a directory. The Puppet “exec” resource allows users to run commands and scripts on nodes. This module is particularly helpful if you need to run PowerShell commands but don't know how PowerShell is executed, because you can run PowerShell commands in Puppet without the module. If you are using Puppet 3. 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. 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. 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. Menu Log In List your. Do you have reason to think that there's something wrong with. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. 1. e. 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. You can also set variables within the manifest, which can change the. However, this manifest will exec the command every time the puppet client checks in with the puppet master. If I try creating it as my process user, I get permission denied. . Like, from scratch. The exec resources will only refresh themselves when they receive a notification. So it will likely work better if the command you are trying to pass will actually execute outside of Puppet. 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. I was hoping to use onlyif in my class, but it seems a little confusing when trying to check for an absent registry value that contains my route. I'm experiencing a very strange behavior with Puppet's Exec type. 0. I am poorly familiar with the puppet language but would guess something like this to execute the jar file: exec { 'jar_execution': command => 'cmd. Their exit codes convey whether to proceed with running the main command. The Puppet exec resource has OnlyIf and Unless attributes which can be used to limit when the command is invoked; e. See full list on puppet. If you remove the parameter it will also fail if the regular execution policy is set to Restricted. –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. asked Apr 1, 2022 at 20:47. Your fact could be something like this: #!/bin/bash if [ -f /my/file. Adds a new exec provider for executing PowerShell commands. 0. How can I tell Puppet to stop a service on shutdown without keeping it running? 0. Contribute to tarunmunjal/puppetlabs-powershell development by creating an account on GitHub. Topics. supported Adds a new exec provider for executing PowerShell commands. Check your syntax by entering puppet parser validate c:\myfiles\file. Adds a new exec provider for executing PowerShell commands. The onlyif and unless commands of an exec are used in the process of determining whether the exec is already in sync, therefore they must be run during a noop Puppet run. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. The command parameter is the PowerShell code you want to run on your node. Learn more See the exec documentation for the command, unless, and onlyif. You can set different levels of permissions for different users or groups, allowing them to read, change, or even delete. 0. 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?. And as for the title of this question which I originally overlooked. 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. Share Puppet can execute binaries (exe, com, bat, etc. Publish a module; Topics. The third example is a (semi-)common mistake made by people coming from certain other tools. I have a script that really only needs to be run one time on a server, i. domain. Puppet File resource runs despite Exec unless. you can check this quickly with the telnet command. cmd. You can use expressions almost anywhere a value is required. The file will be generated in the directory you're currently in, unless you specify otherwise. Puppet running exec. (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. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. If you declare users as virtual resources , you can then use 'realize' or the collection syntax ( User <|. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. This differs from some other languages where looping constructs are special keywords. Adds a new exec provider for executing PowerShell commands. Sometimes I want to run a command one time on all servers, e. However, this manifest will exec the command every time the puppet client checks in with the puppet master. Validate your manifest with puppet parser validate. [Unit] Description=My Webapp Java REST Service [Service] User=ubuntu # The configuration file application. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. how to ensure puppet exec run on every event triggered? 0. The command is only executed if the Guest account does not exist, as indicated by unless returning 0. exe /c C:/test. If it always returns a false (non-zero) exit code then the two. {"payload":{"allShortcutsEnabled":false,"fileTree":{"manifests":{"items":[{"name":"fcontext","path":"manifests/fcontext","contentType":"directory"},{"name":"boolean. 7. 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,. I'm not sure what the problem is, and I need more information. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. Problem with "if" is that it expects the file on the puppet server not on the client. onlyif and unless in --noop documented. Adds a new exec provider for executing PowerShell commands. So in. 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 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’s behavior when declaring or assigning a class with both styles is undefined, and will sometimes work and sometimes cause compilation failures. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. You can use Puppet variables in an EPP template to customize its output. – 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. It sounds like this is exactly what you need: exec { 'test_cmd': path => $::path, command => 'cmd. There are a number of parameters you can set. Puppet File resource runs despite Exec unless. Puppet supports a few different ways of implementing conditional logic: ; if statements, ; unless statements, ; case statements, and ; selectors. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. If this parameter is set to true all necessary changes are made to make a server compliant to the security baseline rules. 2. 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". Learn more about TeamsIt's just not something you can do with vcsrepo unless you can override path (you can in exec). Puppet exec command runs in shell, but not via puppet. refreshonly: Only run the command if the resource is refreshed due to a notify or subscribe metaparameter; cwd: Sets the working directory. 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. The command should only be run as a refresh mechanism for when a dependent object is changed. 5. Modules that are supported by Puppet, Inc. Expand. Your best bet is to run the action as a script and set up the PATH inside the actual script. If Puppet is managing the user that an exec should run as. 5. sh', onlyif => systemctl service_trendmicro, # which system should return 0 or 1 for pass. PUP-11199. Puppet Coding Style - In Puppet, the coding style defines all the standards which one needs to follow while trying to convert the infrastructure on the machine configuration into a code. 0 a new feature "relationship syntax" was introduced. From the puppet i get the error:The solution is to invoke bash with the command as an argument, i. 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. Node examples. I am getting different errors and i was thinking on changing the approach and add those inline cmdlets into a . It applies the resource on the left before the resource on the right. Puppet exec unless doesn't appear to work how I expect. This release documents the noop behavior of the onlyif and unless parameters of the exec resource. Puppet includes two Ruby APIs for writing custom functions. Sometimes a simple creates isn't enough to determine if an exec should run or not. In particular, if you ensure the file absent then it is probably incorrect for the Exec to be triggered when the file is brouught into that state. NORTHWEST LIBRARY FEDERATION. Aside from being good. . Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. 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. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. Valid options: String. This style guide applies to Puppet 4 and later. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. Sorted by: 0. 0. Adds a new exec provider for executing PowerShell commands. 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 file is not being created because the Puppet agent is never actually applying your catalog because you have a compilation error: Error: Failed to apply catalog: Validation of Exec. In your case, the Exec is always successfully applied. It's important to note that the notify resource type is not idempotent. As Forrest already said, it's not what puppet is designed for. Project. . How to clean up files created by Exec resources? 0. Connect and share knowledge within a single location that is structured and easy to search. Please qualify the command or specify a path. The issue is, while first two are correctly executed under "user", third command is executed in. Puppet reboot in stages. 0. That is always handled by the service resource. This will cause puppet to. if statement, with in expression. The exec resource from Puppet, the automation framework, is a mysterious beast. supported. The Windows module pack is a group of modules available on the Forge curated to help you complete common Windows tasks. Unless you tell your exec not to run for some reason or another, it will always run. 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. 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. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. Then, you can install the Nuget package via the package resource in Puppet. 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. Puppet Exec resource to apply only when a File changes. Platform Engineering. 1. So in pseudocode: IF postfix is installed DO touch /tmp/wehavepostfix DONE. (See the notes on refreshing below. I will show how these work in the example below. 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. 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. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple.