deployment strategy

Canary deployments are a reliable software deployment strategy that reduces the risk of introducing a new software version in production by slowly rolling out the change to a small subset of users before making it available to everybody. The canary release gets its name from the "canary in a coal mine" concept, serving as an early warning to detect problems before they affect the majority of users. This strategy is particularly valuable in cloud environments where applications must be continuously integrated and delivered with minimal downtime. In this article, we'll walk through the steps to use Linux Bash scripts to automate the process of canary deployments for cloud applications.

Linux environment variables are a set of dynamic named values stored within the system that are used by applications running on a Linux operating system. They can affect the way running processes will behave on a computer. In this article, we will delve into how to set and use environment variables strategically and provide operating instructions relevant to various Linux package managers: apt, dnf, and zypper. Environment variables are used to store information about the operating environment, such as the location of currently installed software, user settings, and system preferences. For instance, the PATH variable provides the shell with a list of directories to search for executable files.