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Jeff Wong

I manage cloud infrastructure, set up environments, build automations to make my co-workers more productive. 12 years experience working in growth-stage tech companies in Singapore.

📍 Singapore https://tech.kakarukeys.quest

Learn Kubernetes with k3s - part5 - Helm

This post is the continuation of part 4. Previously, I have used helm, the Kubernetes package manager to install an nginx application. To list all the releases $ helm list NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION my-release default 1 2024-03-19 22:58:08.794126266 +0800 +08 deployed nginx-15.14.

Private PyPI repository on AWS - part 2

This post is the continuation of part 1. After creating the repository, we can test it by publishing a package to it and then installing that package in another project. This can be done using poetry, the python package manager. Poetry - Python dependency management and packaging made easyPython dependency

Private PyPI repository on AWS - part 1

Development teams often find themselves needing to share common code across different projects. This is a common challenge in software development. Reusing code not only saves time but also ensures consistency and improves software reliability. Consider the scenario where a development team has a set of utility functions that are

Learn Kubernetes with k3s - part4 - Services

This post is the continuation of part 3. Previously I have explained what Kubernetes services are. I have used kubectl to reveal the services running on my cluster (in part2). $ kubectl get services -A NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default kubernetes ClusterIP 10.43.0.1 <

Learn Kubernetes with k3s - part3 - kubectl

This post is the continuation of part 2. kubectl is a command line tool that allows users to run commands against Kubernetes clusters. Specifically, kubectl enables communication between users and the control plane via Kubernetes API. So the mastery of kubectl is essential for handling real-world cluster operations and troubleshooting.

Learn Kubernetes with k3s - part2 - Networking

This post is the continuation of part 1. Let us look closely at the commands that we have used to install k3s. master1.sudo( "curl -sfL https://get.k3s.io | sh -s - server " "--write-kubeconfig-mode 644 " f"--node-external-ip={server_ip} " "--flannel-external-ip " "

Learn Kubernetes with k3s - part1 - Installation

In 2024, as far as learning Kubernetes is concerned we have a myriad of tools at our disposal: 1. mini distributions such as minikube, kind, k0s, k3s, etc. 2. Q&A AI: ChatGPT, Gemini, Mistral, etc. It makes me wonder if one can learn Kubernetes administration and application development

GitHub Actions Amazon ECR Integration - part2

This post is the continuation of part 1. In this post, I will show how to use a GitHub Actions workflow to automatically build and publish docker images to an ECR repository on a push or pull request merge. We need a dummy project for illustration. I have bootstrapped my

GitHub Actions Amazon ECR Integration - part1

How do you publish docker images to an Amazon ECR repository from a GitHub Actions workflow? (without using any long-lived tokens) GitHub Actions (GHA) is commonly used as a continuous integration tool, and docker image is a common format for distributing and deploying container-based software. AWS is a popular IaaS

My experiment with AI in DevOps

You have heard how the latest advances in AI can help with software development. A natural question would be if AI could be integrated with DevOps to revolutionize the way infrastructure is managed and deployed. So I did a simple experiment. Can AI help automate some of my daily tasks?