Chef Tutorial | Chef Tutorial For Beginners | DevOps Chef Tutorial | DevOps Tools | Simplilearn
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Chef is an open-source tool for automating configuration management and infrastructure as code, developed by Opscode, enabling companies to manage changing infrastructures efficiently. It consists of components like workstations, servers, and nodes, where cookbooks are created and utilized to ensure continuous deployment and system robustness. The document also outlines the benefits of using Chef, including its adaptability to cloud environments and the types of Chef architectures available, such as Chef Solo and Hosted Chef.
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Chef Tutorial | Chef Tutorial For Beginners | DevOps Chef Tutorial | DevOps Tools | Simplilearn
- 2. Whatās in it for you? Chef demo Chef architecture Why use Chef? What is Chef? Configuration Management Components of Chef Infrastructure as Code Flavours of Chef
- 4. Large companies have a constantly changing infrastructure that requires to be configured and maintained time to time Why use Chef?
- 5. Large companies have a constantly changing infrastructure that requires to be configured and maintained time to time Why use Chef? New nodes may get added Existing systems may fail
- 6. Large companies have a constantly changing infrastructure that requires to be configured and maintained time to time Why use Chef? New nodes may get added Existing systems may fail I canāt do it all by myself..
- 7. Large companies have a constantly changing infrastructure that requires to be configured and maintained time to time Why use Chef? This is where Chef comes in and automates the entire process
- 8. Continuous deployment: -Software is deployed continuously enabling a company to keep in pace with the market requirements Why use Chef? Chef provides:
- 9. Continuous deployment: -Software is deployed continuously enabling a company to keep in pace with the market requirements Increase system robustness: -Infrastructure automation ensures all bugs are caught and removed before deploying the software Why use Chef? Chef provides:
- 10. Continuous deployment: -Software is deployed continuously enabling a company to keep in pace with the market requirements Increase system robustness: -Infrastructure automation ensures all bugs are caught and removed before deploying the software Adapt to the Cloud: -Chef easily integrates with infrastructure on cloud Why use Chef? Chef provides:
- 11. What is Chef?
- 12. Chef is an open source tool developed by OpsCode What is Chef?
- 13. Chef is an open source tool developed by OpsCode What is Chef? It is written in Ruby and Erlang
- 14. Chef is an open source tool developed by OpsCode It is written in Ruby and Erlang It automates configuration and maintenance of multiple servers What is Chef?
- 16. Configuration Management Configuration management is a collection of engineering practices that provides a systematic way to manage entities for efficient deployment.These entities include
- 17. Code Infrastructure people Configuration Management Configuration management is a collection of engineering practices that provides a systematic way to manage entities for efficient deployment.These entities include
- 18. Code Infrastructure people Configuration Management Code needs to be updated and stored Infrastructure needs to be configured People need coordination
- 19. Configuration Management A configuration management tool automates these activities. There are two types of configuration management Server Server
- 20. Configuration Management Chef follows pull configuration Server Server
- 22. Infrastructure as code This isTim. Heās working at a large scale company as a system administrator
- 23. Infrastructure as code I must set up a server and install 20 software applications over it
- 24. Infrastructure as code I must set up a server and install 20 software applications over it Server is set up
- 25. Infrastructure as code I must set up a server and install 20 software applications over it Server is set up It will take me all night to install all 20 software applications though
- 26. Infrastructure as code Server is set up This wouldnāt be the case if i had a code for installing all the software rather than doing it manually I must set up a server and install 20 software applications over it It will take me all night to install all 20 software applications though
- 27. Infrastructure as code modified tested deployed I could modify the code to meet the software installation requirements
- 28. Infrastructure as code modified tested deployed Code could be tested to catch any bugs
- 29. Infrastructure as code modified tested deployed Code can be easily deployed and all installations would take place automatically
- 30. Infrastructure as code Policies and configurations Code written as This makes configuration management simpler and more efficient Infrastructure as code is a type of it infrastructure where the operations team manages the code rather than a manual procedure
- 32. workstation The code for configuring and managing the infrastructure is created here Knife is a command line tool that uploads the cookbook to the server Components of Chef
- 33. SERVER The server is where the Cookbooks are stored It provides tools required to drive the node configurations Server may be hosted local or remote The server is the middle man between workstation and the nodes Components of Chef
- 34. node Ohai fetches the current state of the node itās located in Chef client is responsible for the communication with the server Each node can have a different configuration requirement Nodes are the systems that require the configuration Components of Chef
- 36. Recipes are created at the workstation Chef architecture Template āetc/simplilearnā do source āsimplilearn1.erbā owner ārootā group ārootā mode ā0755ā end Recipes workstation SERVER node node
- 37. Recipes are created at the workstation Chef architecture workstation SERVER node node Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Recipes
- 38. Chef architecture Collection of recipes forms a cookbook workstation SERVER node node Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes
- 39. The Cookbook is uploaded to the server using the knife Chef architecture workstation SERVER node nodeKnife Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes
- 40. The Cookbook is uploaded to the server using the knife Chef architecture workstation Knife SERVER node node Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 41. Ohai, a component of the node checks the systemās state and sends it to the chef client Chef architecture ohai workstation ohai Knife SERVER node node Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 42. Chef architecture $ chef-client The chef client ensures that the nodeās state is consistent with the cookbook ohai workstation ohai Knife SERVER node node Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 43. Chef architecture If not, the client pulls the cookbook from the server ohai workstation ohai Knife SERVER node node $ chef-client Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 44. Chef architecture The node then configures itself with respect to the cookbook to the right state ohai workstation ohai Knife SERVER node node $ chef-client Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 45. Chef architecture The node then configures itself with respect to the cookbook to the right state ohai workstation ohai Knife SERVER node node $ chef-client Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Template āetc/simplilearnā do source āsimplilearn2.erbā owner ārootā group ārootā mode ā0655ā end Template āetc/simplilearnā do source āsimplilearn3.erbā owner ārootā group ārootā mode ā0755ā end Recipes $ knife upload simpli-db
- 46. Flavours of Chef
- 47. Chef solo has no remote server.The cookbooks are located at the local site itself Chef server is provided as a service on the cloud.Thus, there is no need to setup a server yourselfHosted chef Flavours of Chef workstation server Node Chef solo
- 48. Chef client/server This is the traditional chef architecture where a remote server is hosted that communicates between workstation and node Flavours of Chef workstation server workstation server node node private chef This is the enterprise version of chef where the server is hosted within the enterprise infrastructure
- 49. Chef demo
- 50. Chef demo Workstation ā CentOS 7 Server - Cloud Service Node - CentOS 7
- 51. Chef demo Download and install Chefdk on workstation Make a cookbook and write the recipe Set up the server Link the workstation and upload the recipe to the server Configure the node
- 52. Key Takeaways Why use chef? What is chef? Infrastructure as codeConfiguration management
- 53. Key Takeaways Components of chef architecture of chef Chef demoFlavours of chef
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