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Install Puppet and Hiera on the master node: You can use your package manager to install Puppet and Hiera. For example, on a CentOS-based system, you can use the following command: sudo yum install puppet hiera
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Configure Hiera: Create a hiera.yaml file in your Puppet configuration directory (/etc/puppetlabs/puppet for Puppet Enterprise, or /etc/puppet for open-source Puppet) and specify the location of your Hiera data files. For example:
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