Learn PUPPET with Real Code Examples

Use environments to isolate large deployments

Cache PuppetDB queries when possible

Avoid overly complex manifests

Split large modules into smaller ones

Minimize agent run frequency for non-critical changes

Use TLS certificates for secure agent-master communication

Limit agent privileges with OS permissions

Secure Hiera data containing secrets

Audit applied configurations regularly

Update Puppet and modules to patch vulnerabilities

PuppetDB query reporting

Node status dashboards

Compliance and drift detection

Agent run logs

Audit reports for security and configuration

Write modular, reusable manifests

Validate syntax regularly

Use linting tools for Puppet DSL

Document module usage

Separate data (Hiera) from logic (manifests)