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不再舒适的2019
2020 新年快乐！！我不得不重复的说，时间过的太快了。其中的一个原因大概是我离开我舒适的环境去接受新的挑战。 2019年初我从 AFL 离职后加入了云计算顾问公司 Contino，想给自己找点挑战，结果还真是很挑战。我从来没做过顾问，因为我性格内向而且英语交流也仅仅达到及格的水平，我想一定是之前的技术经验为我赢得了这份工作。 入职后不久我就被派到一家4万多人的大企业做云迁移项目，就是将原本运行在 IBM 硬件上的业务系统搬迁到 AWS 上继续运行。这回算是体验到了 IBM 的傲慢，知道大客户要投奔 AWS 了也并不在意，但也不是很大方的提供技术上的支持就是了。在大企业里很多事情靠的不是技术而是人际关系和政治头脑，而我在这些方面基本属于幼稚园毕业。好在同事们非常有团队精神，帮我度过了最初几个月。后来我有幸参加了公司的软技能培训，收获非常大，瞬间意识到自己以前说话的方式有多么简陋。 另外一大收获就是我从一个“肉食动物”走上了素食之路，这简直是不可思议的。 在猫本的第一份工作期间我的一个同事 G 就是素食者。当时我们几个“正常人”总是开他的玩笑，例如：素汉堡不算汉堡。但至少我从此有了一个素食朋友。最近几年老婆将后院菜园种的有声有色，各种蔬菜直接从菜园进厨房，真正的新鲜蔬菜。我当然还是爱吃肉的，但老婆收获的蔬菜是必须吃的，所以我吃蔬菜的比例有了很大提高。令我感到意外的是，吃蔬菜的感觉还真不错。 与此同时，肉食产品的负面新闻接踵而来：禽流感，猪瘟，过度放牧，抗生素饲料等等。这些让我对吃肉的兴趣有所减弱。直到我看了 NetFlix 上的纪录片 The Game Changers ，我了解到了很多最强的人，例如运动员，铁人五项冠军等等都不吃肉：“很多人问我，你如何只吃素却像牛一样强壮？我反问，你见过牛吃肉吗？” 没错，就像“钻石恒久远 一颗永流传”一样，让人们喜欢吃肉也是市场运作的结果。 目前我已经不再吃猪牛羊肉了，希望在新的一年里能停吃鸡肉，仅偶尔吃些鱼肉。
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Use fzf to Supercharge Your kubectl Command
First let’s have a look at fzf, a super fast command line fuzzy finder. It’s mostly written in golang and there are so many ways to use it. In this note, I’ll just use it to select a value from a list in a terminal and then return it to next command. When working with…
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Fedora 31, Optimus, Bumblebee and Steam
My laptop(XPS 15) has Nvidia 1050 Ti but I never used it to play games, because I replaced Windows 10 with Fedora Linux on the first day, not even a dual boot. I’ve tried Bumblebee to run Linux native games on Nvidia a few years ago but it wasn’t stable enough. After I upgraded the…
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Golang and Docker Multi-Stage Build MK2
In my previous post I used Docker multi stage technique to build a Docker container image which only has the golang executable in a tiny Alpine Linux base image. I’ll go further to use the scratch base image which has basically nothing. Here’s the Dockerfile I tested on my own project, I’ve also added comments…
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Deploying WordPress to Kubernetes with Kustomize
I’ve just migrated this blog site itself into the kubernetes cluster I built with Raspberry Pi 4s, and this post is about the steps and approach I used to achieve this goal. Yes, what you have been reading is served by 1 of the Raspberry Pi boards. First of all, a bit introduction on kustomize:…
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Kubernetes at Home on Raspberry Pi 4, Part 3
Continue from part 2, this is mostly about installing ingress controller. In short, an ingress controller is like a single entry point for all ingress connections into the cluster. The reason I chose Flannel over other CNIs is that it’s lightweight and not bloated with features. I would like to keep the Pi 4s easy…
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Kubernetes at Home on Raspberry Pi 4, Part 2
Continue from part 1 It’s recommended to change all Pi’s password also run ssh-copy-id pi@192.168.1.x to enable SSH public key login. There are lots of steps to prepare before kubeadm is installed, so I made this ansible repository to simplify this repeating process. Please see here. The ansible role will do the following tasks: set…
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Kubernetes at Home on Raspberry Pi 4, Part 1
I mostly followed/was inspired by this tutorial but with some tweak/fix to recent(Sep 2019) software versions. Also this is a pure Linux walk-through as I don’t use a Mac. I planned to build a home Kubernetes(k8s) cluster and migrate home servers including the one this blog is running on to the k8s cluster, for a…