FluxCD: Continuous Deployment with GitOps

Background In the Korthweb project, I landed on Istio for the Ingress Gateway technology. I first attempted to expand the orthanc Helm Chart to bring Istio as dependency (sub-chart). One of the external chart for Istio gateway needs to be referenced multiple times (for ingress and egress). However, it cannot even be used as dependency … Read moreFluxCD: Continuous Deployment with GitOps

Getting started with GitHub Actions

During the orthweb project, I had to compile a library on my own. In search for free computing resources I realized that GitHub action can meet all my needs. CI/CD pipeline As a development project grows, there are too many operational tasks demanding automation. In strict terms, CI pipeline is the build pipeline; and CD … Read moreGetting started with GitHub Actions

Docker Compose, Docker Stack and Docker Swarm

This posting covers some basic docker orchestration tools. Docker Compose Docker Compose’s predecessor is a tool called Fig developed by Orchard, which was acquired by Docker in 2014, with Fig renamed to Docker Compose. Docker Compose is the official container management tool. It is essentially a python script that parses yaml file, to make Docker … Read moreDocker Compose, Docker Stack and Docker Swarm

AWS Certified DevOps Engineer Exam Tips

The last 30 days have been exhausting for me. I studied hard on the new AWS Certified DevOps Engineer exam and thank goodness I passed (750 out of 1000 is required). This was the hardest professional certification I ever worked on. The exam was re-launched recently in March 2019 so there is still a shortage … Read moreAWS Certified DevOps Engineer Exam Tips

My thoughts on CI/CD

This is a huge topic that is impossible to cover in a posting. To make it worse, they become a buzz word that every body use to mean different things. AWS has a good white paper on CI/CD but there are too much focus on its own hosted services along the way. Otherwise it is … Read moreMy thoughts on CI/CD