CFEngine

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About

CFEngine refers to an open-source configuration management system and its chief function is to offer automated configuration and maintenance of large-scale computer systems, involving the unified management of servers, embedded networked devices, smartphones, and t21`3ablet computers, desktops, industrial and computer devices.

Miri InfoTech is launching a product that will configure and publish CFEngine which is embedded pre-configured tool with Ubuntu and ready-to-launch AMI on Amazon EC2.

Characteristics of CFEngine

  • Research-based: CFEngine inspired an arena of research into automated configuration management right after its inception. This project claims to attempt to place the issue of configuration management in a scientific framework. The author of this open-source framework has built a wide variety of theoretical tools. He has also talked about using this tool and other problems that can be easily resolved by this framework that he has further explicated in his various textbooks and monographs.
  • Portability: The framework offers an operating system independent interface to Unix like host configuration. However, it needs some expert knowledge to manage some particularities of multiple operating systems but it has the capability to perform maintenance actions across multiple hosts. This can also be used on Windows hosts and is greatly used to manage large numbers of Unix hosts that run heterogeneous operating systems including Solaris, ATX, Linux, AIX, Tru64, and HP-UX.
  • Convergence:Another characteristic of CFEngine is that modifications in computer configuration should be performed in a convergent manner. This means that each change operation made by the agent must have the trait of a fixed point. In addition, CFEngine language describes the final state in which one wants to end up instead of describing the steps that are required to make a change. Then, it is the responsibility of the agent to take the required steps to end up in this “policy compliant state”. Hence, CFEngine can be run again and again whatever the initial state of a system, and it will end up with a predictable result.

You can subscribe CFEngine , a AWS Marketplace product and launch an instance from the product’s AMI using the Amazon EC2 launch wizard.

To launch an instance from the AWS Marketplace using the launch wizard

  • Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/
  • From the Amazon EC2 dashboard, choose Launch Instance. On the Choose an Amazon Machine Image (AMI) page, choose the AWS Marketplace category on the left. Find a suitable AMI by browsing the categories, or using the search functionality. Choose Select to choose your product.
  • A dialog displays an overview of the product you’ve selected. You can view the pricing information, as well as any other information that the vendor has provided. When you’re ready, choose Continue.
  • On the Choose an Instance Type page, select the hardware configuration and size of the instance to launch. When you’re done, choose Next: Configure Instance Details.
  • On the next pages of the wizard, you can configure your instance, add storage, and add tags. For more information about the different options you can configure, see Launching an Instance. Choose Next until you reach the Configure Security Group page.
  • The wizard creates a new security group according to the vendor’s specifications for the product. The security group may include rules that allow all IP addresses (0.0.0.0/0) access on SSH (port 22) on Linux or RDP (port 3389) on Windows. We recommend that you adjust these rules to allow only a specific address or range of addresses to access your instance over those ports
  • When you are ready, choose Review and Launch.
  • On the Review Instance Launch page, check the details of the AMI from which you’re about to launch the instance, as well as the other configuration details you set up in the wizard. When you’re ready, choose Launch to select or create a key pair, and launch your instance.
  • Depending on the product you’ve subscribed to, the instance may take a few minutes or more to launch. You are first subscribed to the product before your instance can launch. If there are any problems with your credit card details, you will be asked to update your account details. When the launch confirmation page displays.

Usage/Deployment Instruction

Step 1: Hit the browser with the public IP of the running instance as: http://<public IP>

Click on “Click here” and then proceed to unsafe and use the default login credentials as:

Username: admin

Password: admin

Enjoy the application.

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    Amazon EC2 enables “compute” in the cloud. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use.

    Amazon EC2 allows you to set up and configure everything about your instances from your operating system up to your applications. An Amazon Machine Image (AMI) is simply a packaged-up environment that includes all the necessary bits to set up and boot your instance. Your AMIs are your unit of deployment. You might have just one AMI or you might compose your system out of several building block AMIs (e.g., webservers, appservers, and databases). Amazon EC2 provides a number of tools to make creating an AMI easy. Once you create a custom AMI, you will need to bundle it. If you are bundling an image with a root device backed by Amazon EBS, you can simply use the bundle command in the AWS Management Console. If you are bundling an image with a boot partition on the instance store, then you will need to use the AMI Tools to upload it to Amazon S3. Amazon EC2 uses Amazon EBS and Amazon S3 to provide reliable, scalable storage of your AMIs so that we can boot them when you ask us to do so.

    Or, if you want, you don’t have to set up your own AMI from scratch. You can choose from a number of globally available AMIs that provide useful instances. For example, if you just want a simple Linux server, you can choose one of the standard Linux distribution AMIs.

    No. You do not need an Elastic IP address for all your instances. By default, every instance comes with a private IP address and an internet routable public IP address. The private address is associated exclusively with the instance and is only returned to Amazon EC2 when the instance is stopped or terminated. The public address is associated exclusively with the instance until it is stopped, terminated or replaced with an Elastic IP address. These IP addresses should be adequate for many applications where you do not need a long lived internet routable end point. Compute clusters, web crawling, and backend services are all examples of applications that typically do not require Elastic IP addresses.

    Highlights

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      It is an IT infrastructure automation and continuous operations framework that enables system administrators, engineers, and other significant stakeholders in an IT company to easily manage IT infrastructure thereby ensuring service levels and compliance.

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      It is easily available as both open source and commercial software.

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      It runs on the smallest embedded devices, on servers, in the cloud, as well as on mainframes, that easily manage tens of thousands of hosts.

    Application Installed

    • icon CFEngine