As a newbie to Golang, I am quite impressed by the flexibility of global variables inside Golang. Below simple C program fails to compile. #include <stdio.h> int foo() { return 5; } int a = ...

After ssh-ing into a node, below is the processes that are relevant to kubelet. [ec2-user@ip-172-31-74-55 ~]$ ps -ef | grep kubelet root 3125 1 2 01:28 ? 00:00:08 /usr/bin/kubelet...

I learned a lot from Lan Lewis’s blog Almighty pause container and what are kubernetes pods anyway?. Basically, containers in a pod shared the same PID and NETWORK linux namespace, They are all chi...

cheet sheet As a infra engineer, it is better to remember the json paths of some frequently used properties. .spec.nodeName useful if you want to sort pods by nodes. Quickly get a workin...

I am setting up some webhooks using AWS Lambda these days. As you know Lambda functions can be deployed using a docker image. AWS provides a set of base images for various languages. I am curious ...

AWS load balancer controller An example ALB created by controller. k8s-albnginxingress-119b4b671c-832110419.us-east-2.elb.amazonaws.com The name comes from here The reconcile step is here. EC2 ...

Style and component libraries blueprintjs ant design Material-UI google style UI. Better for mobile. Not recommended for web. Bootstrap tailwind This blog post from the author i...

Best introduction: link Relay vs Apollo client Both are clients of graphql in React. Useful tools chrome plugin: GraphQL Network Inspector Apollo client URI Recently, I took a look at the...

Basically, cloudflare is reverse-proxy. See https://developers.cloudflare.com/fundamentals/ Domain name registrar Godaddy and cloudflare are popular choices. See https://www.cloudflare.com/learni...

Build and run git clone https://github.com/nginx/nginx cd nginx ./auto/configure --prefix=${HOME}/code/build/nginx bear -- make -j # or compiledb make -j make install gdb /code/build/nginx/sbin/ng...