What is exec in Puppet?
Description. Executes external commands. The exec has an onlyif , unless , or creates attribute, which prevents Puppet from running the command unless some condition is met. The exec has refreshonly => true , which only allows Puppet to run the command when some other resource is changed.
What is Refreshonly in Puppet?
The exec has refreshonly => true , which allows Puppet to run the command only when some other resource is changed.
How do you run a Puppet with multiple commands?
1 Answer
- Just change the command line to add all the other commands ( cmd1 && cmd2 && cmd3 ).
- Use the unless or onlyif parameters, so as to check if your stored procedure or whatsoever already exists before running the command.
- Set refreshonly , and subscribe to the previous exec.
What is the default order in which Puppet resources are applied?
By default, Puppet applies unrelated resources in the order in which they’re written in the manifest. If a resource must be applied before or after some other resource, declare a relationship between them to show that their order isn’t coincidental.
What is test in bash?
On Unix-like operating systems, test is a builtin command of the Bash shell that tests file attributes, and perform string and arithmetic comparisons.
What is a class in puppet?
Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. You can add classes to a node’s catalog by either declaring them in your manifests or assigning them from an external node classifier (ENC).
What are the valid abstract resources that Puppet can manage?
Puppet – Resource Abstraction Layer
- Resource [R] A resource can be considered as all the resources which are used to model any configuration in Puppet.
- Abstraction [A]
- Layer [L]
- Example for User Resource Type.
- Testing Resource.
What are Puppet resources?
Resources are the fundamental building blocks used to model system state in Puppet. They describe the desired end state of unique elements managed by Puppet on the system. Everything that Puppet manages is expressed as a resource.
What is square brackets in bash?
The square brackets are a synonym for the test command. An if statement checks the exit status of a command in order to decide which branch to take. grep -q “$text” is a command, but “$name” = ‘Bob’ is not–it’s just an expression.
What is operator in bash?
Bash has a large set of logical operators that can be used in conditional expressions. There are three types of operators: file, numeric, and non-numeric operators. Each operator returns true (0) if the condition is met and false (1) if the condition is not met.