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Leader Election in Kubernetes via Kubernetes Configmaps and Leases
The leader election mechanism is a somewhat complex thing to kind of code up for an application. There are various Golang libraries that assist with this but it would be nicer if there were mechanisms within the environment that the application operate in which can help with this.
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Continuous Profiling of Applications in Kubernetes via Pyroscope
The whole process of profiling an application is an attempt to identify hotspots within the application which consumes more resources or takes too much time - knowing this would allow us to identify how to further improve the code within the applications that we build in order to build applications that consume less resources or would respond better to external inputs.
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Fake Redis Server built with Golang
A friend of mine once mentioned about one of the tasks that he had to go through during his programming days was to build out a server which would respond to the redis-cli tool and I started to think - “that’s something I’ve never done before… I wonder how hard it is?
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Coding out Self Balancing Tree data structures
Over the past month, I decided to go down the rabbit hole of exploring an example of a self balancing tree data structure. I generally don’t need to handle data structures on a day to day basis - I mostly deal with integration of tools as well as deployment of tools into a Kubernetes cluster.
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Custom JS Snippets in Google Sites
Google sites now allow one to embed Javascript snippets into a site; thereby providing some interesting new capabilities with websites built with Google sites. The post here is a simple example of getting the same functionality provided in the BMI Calculator page.
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Experimenting with IP Tables
While playing around with container technologies such as docker and kubernetes, one critical component that kind of comes up over and over again is the whole portion about managing network connections to the containers.
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Restricting connections between pods in a Kubernetes Cluster (Network Policy)
There is an old adage from security land that we should restrict access to resources/assets as much as we can. Users and applications should only access items that they need to operate themselves.
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Private VPC Experimentation
This blog post is kind of a blog post that provide some notes of some experimentation that I encountered while playing with Google Cloud Platform. The purpose of this experimentation was to do the following:
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Debugging Distroless Kubernetes Pods
There is a trend of images that follow the philosophy of minimizing the size of image by removing almost everything out of image. This helps with getting image downloaded more quickly by kubelet into the nodes as well as possibly reducing the attack surface of the container even further (I suppose it’s harder to do things in a container if utilities like shell or bash don’t exist within it).
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A Weight Loss Journey
Before reading on, I’d just give a disclaimer here that any experience recounted here does not count as medical advice. As with anything to do with health or your body, do seek the appropiate medical channels (your doctor etc).
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