Deep Dive into Enterprise IT
My previous notes include some tricks in hosting legacy application in docker. This is a continuation from that work, after 1.5 months… Use Case I decided to use docker to host application for a good reason, and let me start with what this Java-based application does as a single process. When it is up it … Read moreHost legacy application in Docker 2 of 2
This is my notes from containerizing a legacy application with Docker compose. We have to run multiple instances of our application because we’re unable to secure additional VMs for this single-VM education environment. The application is target of containerization, because it requires mass reconfiguration (around TCP port) to run multiple instances of the application. We … Read moreHost legacy application in Docker 1 of 2
Virtual LAN (VLAN) Although VLAN emerged before virtualization and is not part of virtualization topic. I’d just like to start from here as a refresher. Suppose we have computers from finance department and computers from sales department all connected to a single layer-2 switch. There are at least three problems: 1) too many devices on … Read moreVirtualization 4 of 4 – Networking
Reading notes of “Docker DeepDive”. Docker networking is backed by libnetwork, which is an implementation of Container Network Model (CNM), an open-source pluggable architecture designed to provide networking to containers. Libnetwork also provides native service discovery and basic container load balancing solution. Docker networking also involves some drivers that extend the CNM model with specific … Read moreDocker network