OpsWorks

💡 Definition

AWS OpsWorks is a configuration management service that provides managed instances of Chef and Puppet. It lets you use code to automate the configuration of your servers.

🔑 Key Concepts

• Declarative Approach: You define the desired state of your infrastructure using Chef recipes or Puppet manifests.
• Managed Service: AWS manages the Chef/Puppet servers for you.
• Three Offerings:
  1. OpsWorks for Chef Automate: Fully managed Chef server.
  2. OpsWorks for Puppet Enterprise: Fully managed Puppet master.
  3. OpsWorks Stacks: Application and server management using Chef (specific to AWS, older service).

⚙️ How it Works

You write configuration code (Recipes/Manifests) that defines how to install and configure packages on your instances. OpsWorks agents on your EC2 instances or on-premises servers pull these configurations and apply them.

🎯 Use Cases

• Existing Expertise: Teams that already use Chef or Puppet for configuration management.
• Hybrid Environments: Managing on-premises servers alongside AWS instances using the same tools.

💰 Pricing Model

• Server Hours: Charged per hour for the managed Chef/Puppet servers.
• Node Hours: Charged per hour for nodes managed by the service.

📝 Exam Tips (CLF-C02)

• Keywords: "Chef", "Puppet", "Configuration Management".
• Offers a declarative way to manage config.
• Alternative to Systems Manager (which is AWS-native and often preferred for new setups).

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See Also: * Systems Manager * CloudFormation * Elastic Beanstalk