Tech Notes

 When security is important, over-secure is stupid.  Currently, I spent lots of time to figure out an error message from Google Chrome when ...

There is a need to run Redis inside of Kubernetes.  This will eliminate the egress costs. Installation is straightforward if you use Bitnami...

alias dfimage="docker run -v /var/run/docker.sock:/var/run/docker.sock --rm alpine/dfimage" dfimage -sV=1.36 nginx:latest

PromQL syntax is kind of non-intuitive and hard to remember.  If you use it everyday, you should be happy.  But if you use it occasionally, ...

If you are using ingress-nginx controller to route your web services, it is accessible from the whole internet.  This is definitely not what...

Three general approaches to exposing your web services running in Kubernetes: NodePort: port 30000-32767 only; not good option for productio...

Predefined variables: https://docs.gitlab.com/ee/ci/variables/predefined_variables.html Variable precedence: Setup a runner from Gitlab UI: ...