![vmware image customization is in progress vmware image customization is in progress](http://www.vmwarearena.com/wp-content/uploads/2017/09/Create-VMware-Guest-Customization-Specification_19.jpg)
This helps reduce the security attack surface and also minimizes the need to install patches for security updates. It is a best practice to keep the number of additional packages to a minimum. There is a trade off between having too many AMIs vs having a base image that is customized at run time. In case there is a need for faster start-up, a separate AMI can be created with the packages pre-installed on top of the base image. The packages can be installed after the instance is running in EC2 as noted here. In this case, it is logical to save this image as an AMI and re-use it for various services with additional packages. In this case, it is desirable to customize a machine image and save it for all the micro services to re-use.Ī well tested, updated image with the right patches is available.
![vmware image customization is in progress vmware image customization is in progress](https://www.dvraid.com/wp-content/uploads/2020/06/1496197943078007293.jpg)
An example is the installation of wazuh agent on the machine image. This needs specific tools or packages to be pre-installed on the image. The AMI is region specific and the steps to copy the image is noted in this page.ĭetailed instructions to build an AWS AMI for EKS are also available through AWS as noted here.Ĭustom AWS AMIs are desirable in these situations: Then one can install custom packages on it such as the Nessus Agent, specific packages such as terraform, curl, telegraf, wavefront, python, wget, jq, specific version of kubernetes binaries based on need.
![vmware image customization is in progress vmware image customization is in progress](https://ryanmangansitblog.files.wordpress.com/2013/12/vmware-image-customisation4.png)
For example, it is possible to take a market place AMI with the latest patches such as CentOS 7 HVM AMI. We only detail taking an existing image and customizing it for later usage.Īn AWS AMI can be built using packer, a tool provided by HashiCorp. In the quick start section, there are several AMIs available for different needs, or one can create ones own image in a region and save it for future use, pick one from AWS Marketplace or choose a Community AMI. Taking an existing image and customizing it for later usage:ĪWS allows an EC2 instance to be launched with a custom machine image also known as Amazon Machine Image. We will cover both the scenarios in this document.Īs noted in the AWS article, the AWS AMI lifecycle is illustrated below:ġ.1. It is also possible to bring ones own OS and save the AMI. It is possible to take an existing AMI, make changes to it and save it for the future. In this article, we look at building a custom AMI for specific service needs and the best practices when building a custom AMI. This blog post is co-authored by Soumay Das, Anish Swaminathan, Georgi Alexandrov, Dean Efrati, and Thiru BhatĪMI is Amazon Machine Image which provides the information needed to launch an instance in AWS.