Date 2025-10-27 2025-10-31#

  • working on the EKS cluster autoscaler, Some nodepool management with SPOT instances and on demand instances mix.
  • making a application stateless and some of the weird things about defaultMode in k8s volumeMount, root as uid for new folder mount as volume and guid managed by secerutyPolicy of fsGroup.
  • learning about how to make nice UI with the Help of AI ;)
  • Some nice rework and complex problems to solve
  • virtualization space of linux and some study time

Date 2025-10-25 2025-10-26#

  • learning about SCI calculation and some of the proper way to cacluate some like emboddied emissions
  • some learning on the virtio on what does these virtual devices mean

Date 2025-10-24#

  • learning when to use RWO based storage class in k8s. Using Cluster Backup says a lot of things.
  • learning about longhron backup and velero backups.

Date 2025-10-21 2025-10-23#

  • working on Gateway APi in k8s, helm upgrade hooks and some more longhorn specific learning
  • EKS deployment with Terraform with cluster autoscaler provisined with IRSA and OIDC things.
  • learning about RAPL and its sile structure and what all info it provides us with.

Date 2025-10-20#

  • diwali celebrations :)
  • learning about how to use longhorn and a hack for putting things inside the workernodes in a EKS setup via daemonset.
  • Learning about go embed for sql migrations and how to use it with golang-migrate tool.

Date 2025-10-17 2025-10-19#

  • working on kepler and understanding how it used to work with the model estimators.
  • learning about cpu/[0,N]/msr, rapl and how does kepler use that to estimate.
  • wrote a blog post on resolve-virtmanager-network
  • able to make zero downtime deployments when there is a event based worker processing events and about draining it before making releases, all thanks to helm
  • learning how to better check for suitable limits, requests for cpu and memory for k8s workloads.

Date 2025-10-15 2025-10-16#

  • working on helm hooks and some of the edge cases associated with them.

Date 2025-10-14#

  • learning about _helpers.tpl and hooks in Helm charts. some more advance reusable functions.
  • learning of otel context propgatioand sand when to switch off/on telemetry for certain parts of the code based on the logic.

Date 2025-10-13#

  • learning about configMapGenerator and SecretMapGenerator with disable random suffix for kustomize. with debugging env variables play.
  • learning about when do we use Otel Event vs Otel Span for tracing the HARD WAY.
  • when to use otel span at all and all about the different context propagation methods and its evential consistency property which traces have.

Date 2025-10-10 2025-10-12#

  • learning about placement groups usage any Cloud provider also the microsecond latencies and how to measure them.
  • learning about how to instrument a go app with opentelemetry for better logging and tracing for a production workload having multiple external services and find bottlenecks.
  • learning about longhorn RWX across workernodes and how it does replication among them and what happens if all the nodes loose data when its being used by applications.
  • learning about Linux Bluetooth and Audio codecs and AAC vs HAAC… and things ike pipewire and bluez and alsa and pulseaudio and how they interact with each other.
  • k8s sidecar containers which is now official feature since k8s 1.30

Date 2025-10-07 2025-10-09#

  • learning about k8s sidecar containers. new feature
  • learning about stripe compitator polar
  • bluetooth sound systems differen codec and when its used aka available bandwidth and quality tradeoff.
  • working on k8s for frappe
  • otel app instrumentation for better logging and tracing.
  • writing blog post with n8n aka automation. ;)

Date 2025-10-06#

  • Tried out n8n workflow to start automating my social media posts.
  • learning about why do people use longhorn and its usacase where it shines.

Date 2025-10-05#

  • working on NATS Subscrioption Terminate vs NACK and ACK in production practical usecase.
  • Learning about complicaated EMAIL SPF entrie and email forwardings.
  • overall system architecture and the design decisions

Date 2025-10-03 2025-10-04#

  • was able to make the cluster create and cluster delete statemachine work with Emails and SES with postHooks.
  • nice waterfall hiking

Date 2025-10-02#

  • learning about how to create Finite State machines in go to make complex workflows easier to manage.

Date 2025-10-01#

  • learning about AWS SES configurations and also email anti spam and DKIM, SPF, DMARC records.
  • working on new features like email notifications.