2. Puppet modules to install and manage Oracle databases, Oracle Weblogic and Fusion Middleware, IBM MQ, IBM Integration Bus and other enterprise-grade software. 5. “Unless” statements Syntax Behavior Conditions Case Statements Syntax Behavior Selectors Location Syntax Behavior Expand Conditional statements let your Puppet. When using Puppet APIs to load file content and metadata, you can access files in the scripts/ directory of a module using the scripts file mount. There's a generalizable form of this dependency that might be helpful in reducing the repetition of the require statement. ;) – ferventcoder. 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. And elsewhere you can add to the parameters for. I can fix this manually. Share. Puppet 3 is no longer supported, but we. . It would be better to explicitly "exit 0" whenever you do not "exit 1". Puppet Exec with no command attribute. ##Development. Sequence of Execs in Puppet. I have a script that really only needs to be run one time on a server, i. If. powershell conditional IsNullorEmpty not working as planned. 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. 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 can log the child process output and exit status. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. Local user accounts are often desirable for isolating applications requiring unique permissions. . This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. This page is about the legacy API, which uses the Puppet::Parser::Functions namespace. This style guide applies to Puppet 4 and later. Puppet is about describing state and making sure things only have to run once. Puppet attempts to execute directories from /etc/init. Improve this answer. So on a fresh installation, a refresh event will be received but the resource will. 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. Improve this answer. . Search. The problem is that the exec command is running before the group command. problem, then do check at least these things: 1) that your 'unless' command is exiting with the expected return. Puppet provides a built-in exec type that is capable of executing commands. This is a textbook case where you should write the test first, and the code after. A puppet show is a great way to entertain the kiddos at your next event! Find the best puppet shows in Victoria, BC and request free quotes today. Modules that are supported by Puppet, Inc. Right now I have: exec { 'first command': command => "some command" path => '/usr/bin', notify => Exec ["second command"], } exec {. 2. Hot Network QuestionsPuppet avoids destroying directories unless the force attribute is set to true. require means that the the resource passed to require must be applied before the calling resource. When using cmd. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. Install Puppet Agent on bulk windows server. So in. Valid options: String. A statement to determine if the wls_exec must execute. rb in the Puppet source code. 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. 0. The logoutput parameter just logs the output to the. This says "get-chocolatey" should happen before any package resource with a Chocolatey provider. or use the 'resolvconf --disable-updates' exec resource's 'unless' parameter to test for a running unbound daemon prior to installing the package. Or even better, split the shells parts into separate exec resources with dependencies and unless parameters. If exec command was successful and facter returns true then only it should execute, but following manifest executing individually without checking whether that exec. yml] &. Backslashes MUST be used in:. 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/. Here is the service file springboot. 17 also improves the way typed class parameters are checked. puppet exec returned 1 instead of [0] 1. The cis_security_hardening module has a parameter enforce for each rule. But I think the correct way is to use creates: The exec has an onlyif, unless, or creates attribute, which prevents Puppet from running the command unless some condition is met. . Shell built-ins. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. unless. you should get something like -. execute (command, options = NoOptionsSpecified) ⇒ Puppet::Util::Execution::ProcessOutput (also: util_execute) Executes the desired command, and return the status and output. Create exec resources with metadata to ensure it is idempotent. 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. So I assume when the puppet agent runs on my node I should NOT see pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld execute. 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. It is a limitation of the underlying system. 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. Note also that Exec has other parameters that can lead to instances being applied successfully without their commands being run. How do I make a puppet class dependent on all of the resources it defines? 1. As an example I have a powershell script that opens notepad:. Puppet: exec onlyif value is not equal. exe /c C:/test. exe invocation: exec { 'test': command => 'C:\Windows\System32\WindowsPowerShell\v1. They take a control expression and a list of cases and code. How to set Powershell ExecutionPolicy via Puppet exec command with unless property on Windows? 1. That is, unless you can use purging with them. Puppet Exec with no command attribute. For example, the value String represents the data type of strings. exec { 'mysql post cmd1': command => 'whatever', require => Mysql::Db['cosmed'], unless => 'command to check that this exec has been applied. The default behavior is to report the exit code only for the last command in the pipeline. To use commands with pipe |, you must use the shell builtins work around with cmd. How to ensure Service is restarted before commands from Exec resource execute? 0. The shortest path to creating better Puppet modules. You can use not filter to get unless like behavior. Modules that are compatible with Puppet Development Kit (PDK) validation and testing tools. The risk of course is that Puppet runs more than once in that hour, e. Adds a new exec provider for executing PowerShell commands. 163k 8 82 159. 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. Their exit codes convey whether to proceed with running the main command. Conversations. 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. The onlyif parameter is defined as. 0. See the Puppet Type Reference for the exec resource and look for unless and onlyif. Puppet runs executed on multiple external systems. Case statement. Adds a new exec provider for executing PowerShell commands. This style guide promotes consistent formatting in the Puppet language, giving you a common pattern, design, and style to follow when developing modules. 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/. Thanks!. e. . Create this file only if it does not exist, or Start this windows service unless it’s already running. Alternaitve 2: Use Augeas: seems overkill for a simple search & replace. PUP-11199. The service will detect it is not running and start itself if required. This module is particularly helpful if you need to run PowerShell commands but don't know the details about how PowerShell is. I would like to simply set a few environment variables in the . e. e. You can read more about it here. unless => 'bash -c "test -d /home/user/tmp/new_directory"', Should work too. The Puppet Design Philosophy Before we begin to explore best practices with Puppet, it’s valuable to understand the reasoning behind these recommendations. It doesn't even cause clutter in the logs! See also. With Bolt on the command line, run bolt task run exec command=<COMMAND>. The Puppet exec will not run unless the "unless" command exits with status 0. you can check this quickly with the telnet command. Which it looks like it doesn't. , unless you really intend to resolve that path against the working directory. Puppet File resource runs despite Exec unless. exe -ExecutionPolicy ByPass -command "here any command on powershell ""} On Thursday, October 9, 2014 4:22:14 PM UTC-3, Paul Ponzeka. if exec joins the domain, it should have an unless condition that tests whether or not the machine is part of the domain. The Puppet “exec” resource allows users to run commands and scripts on nodes. 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. Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. 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 exec resource from Puppet, the automation framework, is a mysterious beast. The only plausible source of such an issue in the code you presented is your Exec's unless command: unless => "`ps -eaf | grep service | grep -v grep | wc -l` -eq 3" When the command there is executed by the shell, it first executes unless: A shell command that is run as a test to determine if the command should not run. Sometimes a simple creates isn't enough to determine if an exec should run or not. Puppet check if a nagios resource exists. Learn more about TeamsPuppet provides a built-in exec type that is capable of executing commands. Despite the -ExecutionPolicy parameter the PowerShell command will fail if execution is restricted via group policy. properties. , are rigorously tested, will be maintained for the same lifecycle as Puppet Enterprise, and are compatible with multiple platforms. 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. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any. 2 but are only using architecture-appropriate. November 8, 2023. I have a script that really only needs to be run one time on a server, i. For. Like if statements, case statements choose one of several blocks of arbitrary Puppet code to execute. 2 Handling names with spaces. 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. gz packages are copied to the remote systems during every puppet run, while these files where removed after installation and software has been. I think this is due to how the PowerShell module calls PowerShell - it passes -ExecutionPolicy Bypass as part of the powershell. 0. command => '/path/to/script. Puppet File resource runs despite Exec unless. pp in the Puppet command prompt. This can be used with bash on Linux, but with the PowerShell provider , it can run PowerShell on Windows and Linux nodes as well. To run an exec task, use the task command, specifying the command to be executed. The code that creates the container is executed unless the following test if the container exists succeeds: lxc-info -n $ {lxcname} >/dev/null. com I am trying to create Puppet exec that would only execute if certain Windows registry value does not exist. Puppet: Exec from class when Exec from another class is successful. In the modified question, the resources involved have such a relationship already. Puppeteer Script Works Local But Not On EC2 AWS. Detecting if windows service is already installed using puppet exec. in. but the command fails. 6. exe /s "$ {timezone}"", unless => "cmd. This module adds a powershell and pwsh provider to the exec type, which enables exec parameters, listed below. 2. Modules that are supported by Puppet, Inc. Code so far (which is not working) is: Hiera snippet:By default, Puppet agent runs as the Administrator account, which has this privilege. Publish a module; Topics. 3. However, the problem with the exec is that it is not idempotent. refresh: Command to execute if the resource is refreshed due to a notify or subscribe metaparameter. Since moving to Puppet 5. domain. 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. Description. ” There is also a set of values whose data type is “data type. As far as I know, the basic file type in Puppet only handles discretionary permissions that only allow for one group and one owner. #####unless Runs the exec, unless the command returns 0. Maybe. Plans are sets of tasks that can be combined with other logic. Certainly, Notify is right out. Puppet provides a built-in exec type that is capable of executing commands. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. This statement will execute the sql statement drop table application_users on the database named db in the instance named instance. Puppet: deploy file unless it exists. 0. Puppet for Windows and Powershell Recipes. Depending on your client's platform you can use ACLs to grant varied permissions to more than one group or user. It's one that can change your daily work flow for the better once you start using it, but like all open ended tools, it can take a little while to become familiar with. Modules that are supported by Puppet, Inc. The commands in an Exec resource either have to be fully qualified (i. How to pass multiple values in exec command resource in puppet? 0. Node examples. Yet when I run puppet agent -td I see that the puppet agent IS executing pkill -SIGQUIT mysqld; sleep 5; systemctl restart mysqld. Puppet can run binary files (such as exe, com, or bat), and can log the child process output and exit status. Let's also assume that you're puppet module knows when do delete these files. It is a limitation of the underlying system. 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. (2) it is unclear from your description whether the Exec's command is actually run (vs. 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. 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. 1. You are missing my points: (1) you need to establish what grep's exit status actually is when Puppet runs it. e. 7. Case statements will execute a maximum of one code block. I have Puppet master 3. However currently I am struggling to figure out how to do this. pp file. 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. So, in order to avoid this I am adding the refreshonly parameter as follows. lst contents. Tasks use Scripts to execute them on remote machines. 12 behavior got changed to match the intention. }Puppet: Conditional exec using unless-option. Manage local groups . All modules; Supported modules; Modules with tasks; Contribute. e. Alternatively, if that is valid, call the prior script through the latter's onlyif or unless parameter, instead of as its own exec resource. If Puppet were running without privilege then sudo would not help, because Puppet would not provide a. But either way the trailing exit statement in the command will return a non-zero exit code if that happens. supported. An example in Puppet 2. 2. The Win32 APIs. Puppet File resource runs despite Exec unless. command => '/path/to/script. To use the BoltSpec library functions, include them in either the spec_helper. Without one of these conditions, the exec will run on every run of the puppet file which is generally undesirable. Explanation. txt –Value “Hello”’, logoutput => true, provider => powershell, } } The three parameters I use in this manifest are command, logoutput and provider. 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. The exit status when you run it directly and the exit status you expect it to return are irrelevant. Puppet - Check if package is installed, but do not require it. 0 on RHEL 6 and am doing package management via the exec resource. instances method defined) a parameter that can ensure the resource's absence; When both these conditions are met, Puppet can purge the resources it doesn't explicitly. 1 Answer. Another way to control an exec resource is to add a refreshonly => true attribute. ¯_ (ツ)_/¯. If it always returns a false (non-zero) exit code then the two. 7. Apart from all that, it is good practice with Puppet to actually deploy wrapper scripts that your exec resources. 5. where read = 4, write = 2, and execute/search = 1. Back to overview of wls_exec. Problem with "if" is that it expects the file on the puppet server not on the client. notify is set on the user, and refreshonly is set on the exec. Puppet File resource runs despite Exec unless. do, line 50) cannot accept an array of options. Adds a new exec provider for executing PowerShell commands. This runs the first-exec, and unless /var/exists it runs the second-exec. d/x exists then /bin/true is run (successfully). Usage. 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. Sometimes I want to run a command one time on all servers, e. How do I make make puppet module break if condition not met. rb instead of including them in the individual test files. Puppet Resources are the building blocks that puppet uses to model system configurations. Rename("new-guest")', unless => 'if (Get-WmiObject. (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. I've created a puppet script to install Azure client and in the last step before using yum install, I want to make sure that the package haven't installed before for prevent from duplicate install. Puppet File resource runs despite Exec unless. 1. 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,. That will run every time puppet runs. sudo -u fred /usr/bin/echo "hola dan" Note that I used sudo -u in favor of sudo su -. Modules that are supported by Puppet, Inc. } @choover Unfortunately that won't work. If executed as root, the lxc-info checks for the name among the root containers. 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. That is always handled by the service resource. If you do need to do it via say the exec resource, then @16c7x's statement is correct. Puppet Exec Resource. Long answer The scheme you have in mind is not compatible with Puppet's master/agent paradigm. Puppet exec unless doesn't appear to work how I expect. You can use the unless parameter to only execute the statement in certain states. The Win32 APIs define exit. On reboot, the directory doesn't exist, strangely enough. 0 Puppet strange behaviour of execs. First, change the require arrow to a notify arrow, from -> to ~>. Something like this should work: - name: Get rabbitmq vhosts. When you use any of the four so-called metaparameters for relationships in Puppet - those being: require , before , subscribe & notify - you tell Puppet that you want the application. Other built-in types. The logoutput parameter just logs the output to the. This means that if a file is currently a directory,. 1. Is there a way to tell puppet to only execute command if one of the files does not exist? 0. 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. Related questions. 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. "Unless" statements work like reversed if statements. If you declare users as virtual resources , you can then use 'realize' or the collection syntax ( User <|. Only supported on Windows Server 2003 and above, and Windows 7 and above. Resource default for the exec type A resource default statement set default attribute values for a given resource type. Puppet: Conditional exec using unless-option. 6. Conditional statements allow you to write Puppet code that will return different values or execute different blocks of code depending on conditions you specify. You could use for instance (see reference doc)An exec will always run unless it has something to limit it. I read the message you ask about as saying that the Exec was not refreshed, so the command will not be run. So in. exe only when the aspnet_banking_app is created or changed. I will show how these work in the example below. exec { 'Make sure frob is installed': command => 'apt-get install -y frob', unless => 'frob --version', } Ansible's command module has a "creates" option that looks for a file, but I don't. It would be better to explicitly "exit 0" whenever you do not "exit 1". Thus:I only want to execute that if the hostname is not what it should be: exec { 'update hostname': command => 'sudo hostname VM01', unless =>. So in pseudocode: IF postfix is installed DO touch /tmp/wehavepostfix DONE. In the code that Womble shows, there are no variables, so all the " should instead be '. I have two similar Exec[] in a class, both with the onlyif parameter, as you can see below. All groups and messagesCreate A Puppet Configuration File. 0 Output on one command cause next one to fails. I am just putting small snippet here to show you what its doing. As Forrest already said, it's not what puppet is designed for. 4. Puppet PowerShell Execution. Puppet Inc modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. – 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. txt 2>&1. , for example, the Exec resource being. refreshonly => true on an Exec resource requests that its command be run only in the event that the resource is refreshed. 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. fail when a file exist in puppet. However, when I clean my /tmp and apply the manifest again, it fails because the first exec doesn't executed. Setting the umask only has effect within the process that does it (see umask in sys/stat. By default, Puppet returns the first value it finds, but it can also continue searching and merge all the values together. exe startup arguments, so local scope will always return Bypass, thus causing it to fail on the unless every time. Q&A for work. exe utility (note the space after and lack thereof before the = character): exec { "install_service" : command => "$ {Sys32}sc. Your solution sounds like a work-around and it is therefore totally ok to implement a work-around using Exec. This seems to work just fine. if statement, with in expression. g. at deployment time, but figured it would be best to have Puppet manage it. refresh: Command to execute if the resource is refreshed due to a notify or subscribe. 0. Puppet’s behavior when declaring or assigning a class with both styles is undefined, and will sometimes work and sometimes cause compilation failures. Puppet supports a few different ways of implementing conditional logic: ; if statements, ; unless statements, ; case statements, and ; selectors. ##Development. By using find to execute whatever commands you mean by "manage files" you should be able to accomplish your goal. exec { 'chkconfig': command => "/sbin/chkconfig --add $ {shutdown_script}", require => File ['shutdown-script'] } This is actually your root cause here. Puppet should then run two commands only once. sh', onlyif => systemctl service_trendmicro, # which system should return. I am wondering whether it is possible to have Puppet only stop and disable a Windows service if it exists. ” These values represent the other data types. 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. You need to put the rabbitmqctl list_vhosts | grep sensu in a separate task and register the result to use it in the when clause. To ensure the resource is idempotent, specify one of the creates, onlyif, or unless attributes. Executables, zips and or tar.