Vishnu Hari Dadhich vishnuhd

Managing kubernetes cluster with KOPS

Prerequisite

kops
kubectl
awscli configured

Create the kops cluster

For cluster creating we need to add more env variables. NAME will be the name of the cluster, since we wont do DNS settings we will use gossip based DNS and for that cluster name needs to end with .k8s.local and before that you can put almost anything.

Deploy Jenkins to K8s using Helm in Jenkins namespace

Setup tiller in your k8s cluster as here - https://gist.github.com/vishnuhd/08a5b830a4dbf2476ee40ace18e36a31
Create jenkins namespace

kubectl create ns jenkins

Install helm chart for Jenkins with jenkins namespace

To kill a stuck MySql Process

Find the ID :

# mysqladmin processlist -hmysql-service -uroot -proot_password

Kill the process :

Nginx Ingress | Docker for Mac

The following Mandatory Command is required for all deployments

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml

Docker for Mac Kubernetes is available in Docker for Mac (from version 18.06.0-ce)

Create a service

Setting Up ADFS on AWS Windows Server 2016 instance

Create an Windows Server 2016 instance with t3.medium atleast, 30 GB storage and ports - 80, 22, 53, 389, 3389, 443, 3268 open.
Install AD Domain Services, AD Federation Services and DotNet 3.5.
Promote current server as Domain Controller.
Setup IIS for https binding with self-signed certificate.

There are two versions of Docker – Docker CE (Community Edition) and Docker EE (Enterprise Edition). If you have a small-scale project, or you’re just learning, you’ll want to use Docker CE.

In this gist, we will cover how to install Docker on Ubuntu 18.04.

Prerequisites

Ubuntu 18.04 64-bit operating system
A user account with sudo privileges
Command line / terminal (CTRL-ALT-T or Applications menu > Accessories > Terminal)
Docker software repositories (optional)

	alias k="kubectl"
	alias kc="kubectl create -f"
	alias kaf="kubectl apply -f"
	alias kdf="kubectl delete -f"
	alias kg="kubectl get"
	alias pods="kubectl get pods"
	alias allpods="kubectl get pods --all-namespaces"
	alias rcs="kubectl get rc"
	alias pvs="kubectl get pv"
	alias allpvs="kubectl get pv --all-namespaces"

	---
	apiVersion: apps/v1
	kind: Deployment
	metadata:
	name: my-nginx
	labels:
	app: nginx
	spec:
	selector:
	matchLabels:

	apiVersion: v1
	kind: Pod
	metadata:
	name: nginx
	labels:
	env: test
	spec:
	containers:
	- name: nginx
	image: nginx

	#!/bin/bash

	# WTF is eating my RAM
	ps aux \| awk '{print $6/1024 "MB\t\t" $11}' \| sort -rn \| head -10