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Articles tagged with #devops
1. Containers vs. Virtual Machines (VMs): Key Idea: Containers are fundamentally different from VMs. VMs are designed to host an operating system, Containers do not include a full guest OS; they include only user-space dependencies while sharing the...
Externalising Configuration: Configurable information, (such as a web application's background colour), should not be hardcoded within the application's source. It is a best practice to move such information out of the application code and store it a...
1. Rationale for Creating Custom Docker Images There are two primary reasons why one might need to create a custom Docker image: Absence of Existing Components: You cannot find a component or a service that you want to use as part of your applicatio...
1. Running Docker Containers Docker provides flexible options for running containers, including specifying software versions and enabling interactive input/output. Specifying Software Versions (Tags): When running a container, you can specify a part...
1. Running and Managing Containers The primary function of Docker is to run applications within isolated environments called containers. docker run: This command is used to launch a container from a specified image. Functionality: The docker run com...
1. The "Matrix from Hell" and the Need for Docker The core problem Docker addresses is the "compatibility matrix from hell" – a significant challenge in traditional application development and deployment. There have been times when difficulties faced...
