Skip to content

Hackfi

DevOps

Recent Posts

  • Node 8266 EPS – voltage sensor – pushgateway
  • Voltage Sensor – with pico w 2
  • Pico 2 w – HC-SR04 ultrasonic distance sensor
  • Pi Pico 2 W – UF2 flash – install
  • Pico W with MQ-135 air quality sensor – Prometheus pushgateway

Health

  • Halim seed Benefits
  • Seeds health benefits – Eat Daily
  • Haldi(Turmeric) Milk – Lifes Hack

Tags

  • Arduino
  • aws
  • bash
  • cert
  • cron
  • curl
  • devops
  • docker
  • docker-compose
  • elk
  • esp32
  • grafana
  • groovy
  • haproxy
  • health
  • helm
  • Jenkins
  • k8
  • kong
  • kubernetes
  • linux
  • mysql
  • networking
  • nfs
  • nginx
  • openfaas
  • pico
  • pipeline
  • postgres
  • prometheus
  • proxy
  • python
  • questions
  • rancher
  • raspberry
  • raspberrypi
  • rust
  • security
  • shell
  • shellscript
  • sonarqube
  • ssl
  • tls
  • wifi
  • wsl
August 2020
M T W T F S S
 12
3456789
10111213141516
17181920212223
24252627282930
31  
« Jul   Sep »

Archives

  • April 2025
  • March 2025
  • February 2025
  • January 2025
  • October 2024
  • August 2024
  • July 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • August 2023
  • July 2023
  • May 2023
  • April 2023
  • March 2023
  • January 2023
  • December 2022
  • November 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • April 2022
  • March 2022
  • February 2022
  • January 2022
  • December 2021
  • November 2021
  • October 2021
  • September 2021
  • August 2021
  • July 2021
  • June 2021
  • May 2021
  • April 2021
  • March 2021
  • February 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • October 2019
  • August 2019
  • July 2019
  • June 2019
  • April 2019
  • March 2019
  • October 2018

Categories

  • Arduino (1)
  • aws (4)
  • cardano (1)
  • devops (30)
  • docker (22)
  • elk (5)
  • emacs (1)
  • health (3)
  • jenkins (16)
  • kubernetes (27)
  • linkerd (1)
  • linux (31)
  • logstash (1)
  • monitoring (6)
  • nix (1)
  • prometheus (2)
  • python (3)
  • raspberrypi (11)
  • security (10)
  • terraform (1)
  • Uncategorized (139)

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Pages

  • Contact
  • Health

Day: August 31, 2020

Named pipe in linux

Why to use named pipe?
1. No data is written on disk while reading and writing file
2. Screen sharing
3. Higher read write IO

Screen sharing with named pipe

  • terminal-1

mkfifo /tmp/pipe1

  • terminal-1

script -f /tmp/pipe1

  • terminal-2

cat /tmp/pipe1

  • terminal-1 start typing the command it will be shown in terminal-2

Posted on August 31, 2020August 31, 2020Categories linux, UncategorizedTags linuxLeave a comment on Named pipe in linux

Kubernetes get new join command for data plane/Worker node

on control plane(master) node

kubeadm token create --print-join-command

More : https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-join/

Posted on August 31, 2020Categories kubernetes, UncategorizedTags kubernetesLeave a comment on Kubernetes get new join command for data plane/Worker node
Proudly powered by WordPress