Chef Overview
Chef is a configuration management platform: you describe desired state as Ruby DSL (recipes in cookbooks), and a Chef Infra Client on each node converges toward that state on a schedule or on demand. It is pull-based (nodes fetch policy from Chef Server or use chef-solo-style patterns) unlike Ansible, which pushes over SSH.
For provisioning VPCs and IAM, teams usually pair Chef with Terraform or CloudFormation — same split as Ansible vs Terraform.
Core Concepts
Section titled “Core Concepts”| Term | Meaning |
|---|---|
| Cookbook | Unit of configuration — recipes, templates, attributes, files. |
| Recipe | Ruby file listing resources (package, service, file, template). |
| Resource | Declarative statement (e.g. install nginx, enable service). |
| Node | A server (or VM) that runs Chef Infra Client. |
| Chef Server | Central API storing cookbooks, roles, environments, node data. |
| Policyfiles / Roles | Ways to pin which cookbooks and versions a node uses. |
Chef vs Ansible (Operator View)
Section titled “Chef vs Ansible (Operator View)”| Chef | Ansible | |
|---|---|---|
| Agent | Chef Infra Client on node | None (SSH + Python) |
| Language | Ruby DSL | YAML playbooks |
| Model | Pull (default) | Push |
| Idempotency | Yes (resources converge) | Yes (modules) |
Choose Chef when your organization standardizes on Chef Server, policyfiles, and agent-based drift correction. Choose Ansible when you want agentless SSH automation — see Ansible.
Test Kitchen
Section titled “Test Kitchen”Test Kitchen spins up throwaway VMs (Vagrant, cloud, Docker driver), applies cookbooks, and runs InSpec or similar tests. It is the common local integration path before promoting cookbook versions.
Learning Path
Section titled “Learning Path”- Read Chef Learn and official docs for current Chef Infra vs Chef Automate naming.
- Author a minimal cookbook: package, template, service.
- Run Test Kitchen with your cloud driver.
- Integrate cookbook version bumps with CI (lint, unit, kitchen).
Related
Section titled “Related”- Ansible — Agentless alternative.
- Terraform — Provisioning; often runs before Chef or Ansible.
- nginx examples in Ansible — Roles (parallel “install and configure” goal).
This site does not duplicate full Chef documentation; use Chef Docs for version-specific APIs and supported platforms.