Terraform

 What is TerraformIt allows to automate and manage your infrastructure , platform, and services that run on that plateform.Open source.Declarative ( don't have to define every step ).Tool for infrastructure provisioning.There are two steps in deploying a project or infrastructure first is provisionoing infrastructure ( preparing server liek sequirity , installing docker etc ) and second is actually...

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Puppet

What is puppet?Tool to manage and automate the configuration of servers.There is a primary server and puppet agent Puppet uses a declearative languge to describe what to do not steps and the puppet primary server stores puppet code and puppet agent translates that code in commands to do that certain task. called puppet run.&nb...

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Ansible

What is Ansible?Tool to automate IT tasks.Why use Ansible?Repetitive tasks: like back ups, updates, system reboots, create user, assign goups , assign permissions etc.manual approach will be doing ssh in one server than in another and so on.We have to make notes of what we did in one server and then we have to do the same in another server with same steps.Eg: Suppose you have 10 servers and you want...

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Basic generator control loops

 Basic generator control loops •        In an interconnected power system , LFC (Load frequency control) and AVR (Automatic voltage regulator) equipment's are installed for each generator. ( in fig LFC and AVR loops are shown). •        Controllers are set for a particular operating condition and take care of small changes...

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Disjoint set union (DSU)

DisJoint set union : It is a technique in graphs used for grouping problems    There are two functions  used (find and union )     Find: find parent;     Union: merge two groups with a rule; public int find(int x,int[] par){ if(par[x]==x){ return x; } par[x]=find(par[x],par); return par[x]; }...

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