Its package manager for Kubernetes , similar you yum, apt, homebrew, dnl example installing dynatrace https://docs.dynatrace.com/docs/ingest-from/setup-on-k8s/deployment/platform-observability#helm helm install dynatrace-operator oci://public.ecr.aws/dynatrace/dynatrace-operator \ --set "csidriver.enabled=false" \ --create-namespace \ --namespace dynatrace \ --atomic

Install Postgres add-apt-repository 'deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main'wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -apt-get updateapt-get install postgresql-11 MASTER: 192.168.33.50SLAVE1: 192.168.33.51SLAVE2: 192.168.33.52 On master postgres@master:~$ su - postgres Note: Set password less auth b/w master & salve, master & slave2 vice-versa postgres@master:~$ service postgresql status11/main (port 5432): online postgres@master:~$ ssh-keygenGenerating public/private rsa key pair.Enter … Continue reading postgres 11 master slave replication in ubuntu14.04

Visit https://golang.org/doc/install for details on how to install w.r.t OS flavours In my case i am using linux OS [root@gomachine ~]# wget https://dl.google.com/go/go1.13.4.linux-amd64.tar.gz [root@gomachine ~]# ls -l total 117244 -rw-r--r--. 1 root root 120054682 Nov 1 00:19 go1.13.4.linux-amd64.tar.gz [root@gomachine ~]# tar -C /usr/local -xzf go1.13.4.linux-amd64.tar.gz [root@gomachine ~]# ls -l /usr/local/go/ total 204 drwxr-xr-x. 2 root … Continue reading Go Basics

Few key points about lambda function 1)Not defined by def keyword 2)Return expression not value 3)One-line function 4)Any number of arguments 5)Defined by using lambda keyword 6)Functions does not have any name 7)Can not access global variable syntax: lambda arguments:expression Ex: sum = (lambda x,y: x+y) print("addition of x and y is",sum(4,6)) o/p: addition of … Continue reading Lambda function in python

Its all about the scope of a variable  variable defined at the top of all functions will have global scope. variables defined in function are called local variables & the life of that variable is  with in the function only . #### Global variable a = 10 #### funtion defination def display(): b=20 print("the value … Continue reading Global and local variables in python

Types of Arguments There are 4 types how we can pass arguments to functions in python 1) Default arguments 2) Required arguments 3) Keyword arguments 4) Variable number of arguments   Default arguments: Default values indicate that the function argument will take that value if no argument value is passed during function call. The default value … Continue reading Types of arguments in python user-defined function

Identifiers Ex: a=10 b='xyz' Here a And b are identifiers. Identifiers can start with _ or a-z or A-Z  & alphabet followed by number (0-9)  but not with 0-9 # Starting of python programing ''' Multy line comment bla bla bla and that it ''' print("This is very begging") a=10 b='xyz' print(a,b) _a = 50 … Continue reading Identifiers and Operators in python

What is POD? A point of delivery, or PoD, is "a module of network, compute, storage, and application components that work together to deliver networking services. An overlay network is a computer network that is built on top of another network. An overlay is a virtual network that is built on top of underlying network infrastructure. The purpose is to implement … Continue reading Pod Network