Day 23 in the #vDM30in30
Image from https://flic.kr/p/c5U1bW
So, previously we talked about the RAL as a Swan.
Let’s look at those legs kicking below the water.
RAL with a package installation
Let’s continue with our example of a resource on a system, a package called tree.
package {'tree':
ensure => present,
}
Let’s look at how the RAL will manage this:
- We’ve given the type as package.
- I’m running this on a RHEL7 system, so the default provider is yum.
- yum is a “child” provider of rpm: it uses the RPM command to check if the package is installed on the system.
- This is a lot faster than running “yum info”, as it doesn’t make any internet calls, and won’t fail if a yumrepo is failing.
- The install command however, will be
yum install.
So previously we talked about how Puppet uses the RAL to both read and modify the state of resources on a system.
