Chef vs Ansible: Difference Between Chef and Ansible

StarAgilecalenderSeptember 30, 2020book minseyes2046

Chef Vs Ansible

Configuration management (CM) is the method of ensuring that all the assets of the organization are identified, managed, controlled, and tracked at all times, and any future changes to these assets are also tracked.

This was a manual task completed by the System Administrators. The role was tedious and cumbersome and need a lot of time and effort. This was easy in managing less than 5 to 10 assets, gets increasingly complex and difficult if we have to manage hundreds of assets.

Some of the benefits of CM are as follows,

Disaster Recovery - If anything worst happens to the assets with the new configuration then we can get back to the old configurations. It also applies to rollbacks. Especially important when we put bad code and we can go back to the status before the changes.

Uptime and site reliability - The site reliability means how much of the time the assets are up and running. There are some organizations where even seconds of downtime would cause a loss of millions of dollars. This happens due to bad deployments that can be caused if the platforms are different in test and production servers. With the CM done properly, the test environments are the same as the production environments.

Easier Scaling - We can add more resources to the applications that are running with CM done correctly. For example, if we want to add more servers to the existing application then it becomes very easy just a click of a button or running an automation script.

Some of the other benefits of CM are an excellent collaboration between the teams and improved software lifecycle of products or assets.

The challenges of CM are removed in DevOps life cycle management with the help of DevOps tools such as Fabric, SaltStack, Chef, Puppet, Ansible, etc. 

To learn more about DevOps tools undergo training at the StarAgile institute for DevOps Online Course.

Chef an Introduction 

Chef is the CM tool used to automate the infrastructure provisioning. It is written in Ruby DSL language and is the open source software developed by Adam Jacob founder of Opscode. It has the features to integrate with any of the cloud technology.

It is used to deploy, manage applications, servers both on-premises and on the cloud both of them in DevOps.

The features of the chef are,

  • It is built on Ruby DSL which is a domain-specific language.
  • It uses its systems to get the current state of the nodes
  • It is widely used on the cloud for managing and deploying the servers, applications, and storage.

The advantages of chef are it uses domain-specific language which can be written by anyone who has some knowledge of coding

It also used widely in the provisioning and deployment of servers, apps, and other infrastructures on the cloud

Ansible an Introduction

Ansible is a tool used in configuration management, application deployment, and cloud provisioning and orchestration services.

It is used for multi-tier deployments and manages a host of systems in one go by inter-relating each one.

Unlike other configuration management tools, it does not have agents and no custom security software. It uses simple English like language YAML in the form of playbooks.

Features of Ansible are 

  • Efficient Architecture - It uses small programs called "Ansible modules" to push them to the nodes and when the desired state is achieved it removes the modules. It pushes these modules over the SSH.
  • SSH Keys - SSH is one of the best ways to use Ansible. You can create any user logins or su or sudo users and no root logins are required.
  • Manage your inventory in a simple text file - The Ansible manages the machines and represents in a simple INI file.

Other benefits are it can be used for ad-hoc parallel task execution, the playbook is the powerful automation language and Ansible can be extended by more plug-ins, API, and modules.

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Analysis Chef vs Ansible –Chef Benefits Over Ansible 

  1. Chef's Ruby DSL language is easy to pick up and can be written by anyone with little experience with the coding.
  2. Chef is better when compared to Ansible when it comes to finding the current state of the nodes.
  3. Chef does not assume the current state its agents find out the current state and return it to the server.

Analysis Ansible vs Chef – Ansible Benefits Over Chef 

  1. Ansible is better than chef when it comes to agentless architecture, it does not have client installation on the nodes, rather uses small programs to collect data on the nodes.
  2. Widely used OpenSSH is used for its programs to communicate to the nodes; this is widely supported across cloud platforms such as Google Cloud, Azure, and AWS. This makes the deployment faster and reduces the intricacy of configuration files.
  3. Ansible can be used in the complete orchestration of the typical infrastructure whether it is on a cloud or on-premises.

Difference between Chef and Ansible

To learn both Chef and Ansible register for DevOps online certification with StarAgile institute.

Scalable deployment is difficult due to massive Ruby DSL code
Scalability is efficient as installing python interpreter and root access SSH s simple
2Product capabilities
  • Continuous delivery possible with automation in workflow 
  • Infrastructure automation
  • Compliance and security management
  • Automation for DevOps workflow
  • Automated workflow for continuous delivery
  • Streamlined provisioning
  • Security and compliance management
  • Simple orchestration App development

The starting price of a standard hosted chef plan is $72 yearly for every node

The automation version cost $137 per node yearly

The starting price of the self-support package is $5000/year. The Premium version costs $140/year for each  node
Support for pull configuration only
Support both the pull and push
Support pull configuration only
Ansible server supports only Unix/Linux machine but the client machines support windows
6Ease of setup and installation
Chef workstation makes consumes time and complicated too
Chef clients can only configure the clients and server
SSH allows configuration only on specific nodes
8Configuration Language
Ruby DSL
Yet another Markup Language Python
Backup Server
Secondary Instance

Conclusion – Do you want to learn Chef or Ansible 

Now you know the difference between the Chef and Ansible as well as which has what features to be used for in DevOps. If you want to know which one is better, then there is no simple answer to it. It entirely depends on the work you are doing, your assets, the infrastructure you want to manage, and a lot of benefits and features that you need for each one of the tools. 

However, you must know that both have their place in configuration management and has additional features plus some benefits. You as DevOps architect must decide which one to use when and in which project. 

For some DevOps project, the Ansible may be a better choice it depends on how well you analyze, and for some DevOps project, the Chef may be a better choice. The decision must be based on the assets or the infrastructure that you study.

As an aspiring DevOps professional you must learn both and you can take up the DevOps certification course with StarAgile institute. StarAgile offers DevOps Online Training that is interactive and covers both lab and theory sessions.

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