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Dipesh Majumdar

Blog and Paintings

Blog posts

empower sed to to work on case insensitive strings

This is what you need to do in a macOS:

brew install gnu-sed

The end of the install…

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Installing Terraform in macOS

 

First download the software (a zip file) from here - https://www.terraform.io/dow…

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HTTP/1.1 413 Request Entity Too Large

Is that the error you see while uploading big packages?

Well the solution is simple - if…

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variable substitution in for loop with curly brackets

Requirement - 

I want to calculate the no. of AEM_INSTANCES which I am passing as an …

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Getting jq to work on Macbook

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"…

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Lessons learnt from "mysql golang rest api project"

Recently I was working on a mysql golang rest api project and these are some of the issue…

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activeDeadlineSeconds and backoffLimit

Lets create a job - 

apiVersion: batch/v1
kind: Job
metadata:
  creationTimestamp:…

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Difference between service port and container port

service port is marked in yellow highlight below - 

k run  nginx --image nginx:1.7.7 …

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To those who seek to be noticed...

Be so good in your craft that people are bound to notice you.  - Dipesh Majumdar

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vi editor tips and tricks

  1. go to top of screen
  2. go to middle of file
  3. go to end of file
  4. start inserting just …

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skeleton ingress to feed nginx ingress controller

The way it works is: 

nginx ingress controller has to be deployed in your nginx namespa…

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Enabling K8s network policy during Cluster creation

While creating k8s cluster you need to enable this feature. 

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Common Mistakes in declarative yaml manifests and imperative commands

Its a common mistake - you need to know yaml properly. so here i first did this

    re…

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Sitting on a Jumpbox and testing with network policy

You want to sit on a jumpbox so you can wget to some clusterip:port for testing only....

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Creating a pod and a matching service imperatively

[dipesh.majumdar@demo ~]$ k run nginx --restart=Never --image=nginx --dry-run --port=80  …

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Volumes, Storageclasses, pvc

First of all, if you are creating a hostpath volume within a pod of type Dir and it looks…

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Finding out Entrypoint, CMD, env of docker from the image

Million Dollar Question: You have an image - but you wan to find out the entry point from…

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Monitoring K8s

- metrics server (heapster has been deprecated) - metrics server receives metrics from no…

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Service Account Mystery

[dipesh.majumdar@demo ~]$ k -n mns get all
No resources found.

Though SA is present b…

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Environment Variable in Docker

[dipesh.majumdar@demo ubunutu]$ cat Dockerfile
FROM ubuntu
#CMD sleep 5
#CMD ["sleep",…

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20 Blog Posts