networking

KVM: Creating a bridged network with NetPlan on Ubuntu 18.04 bionic

UPDATE September 2022: New article for bridged networks written for Ubuntu 22.04 In order to expose KVM virtual machines on the same network as your Host, you need to enable bridged networking. In this article, I’ll show how to implement KVM bridged networking on Ubuntu 18.04 bionic using Netplan.  This bridged network will expose the KVM: Creating a bridged network with NetPlan on Ubuntu 18.04 bionic

Docker: Using docker-compose and networking to link a Spring Boot app to an external service dependency

In earlier versions of Docker,  links were used to connect two containers by enabling network access as well as sharing environment variables.  This approach is being deprecated in favor of a shared network between the services.  And instead of environment propagation, environment values will need to be explicitly added to each service that requires them. Docker: Using docker-compose and networking to link a Spring Boot app to an external service dependency