| Resource | Shortcuts | Command |
Node | no | kubectl get no |
Namespace | ns | kubectl get ns |
Deployment  | deploy | kubectl get deploy |
Replica Set | rs | kubectl get rs |
Ingress | ing | kubectl get ing |
Services | svc | kubectl get svc |
Pod | po | kubectl get po |
Network policies | netpol | kubectl get netpol |
Persistent Volumes | pv | kubectl get pv |
Persistent Volume Claims | pvc | kubectl get pvc |
Service Accounts | sa | kubectl get sa |
Storage Classes | sc | kubectl get sc |
If you are a beginner or individual who wants to switch to/learn IT DevOps/cloud/Kubernetes. Then please join.
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Ansible is NO.1 Configuration management tool
Ansible is an Open source IT Automation tool. Mainly used to automate configuration management activities.
If we want to install software/update patches in 1 machine then it is easy and may take 10 minutes to do this task. But think that, we need to do the same activity on 12 Machines, then it would take 2 hours of effort. If we automate the same task using ansible, we will save time and there is no scope of human error and our Infra configuration would be as code. We can modify and can reuse the same.
Using Ansible, we can automate almost all the regular IT tatsks/process.
Run below command to install it pip
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
$ python get-pip.py --user
Run below command to install Ansible
$ python -m pip install --user ansible
Or install Ansible using brew
brew install ansibleBelow is the command to run on RHEL sudo yum install ansible Below is the command to run on Ubuntu $ sudo apt update $ sudo apt install software-properties-common $ sudo add-apt-repository --yes --update ppa:ansible/ansible $ sudo apt install ansible
As of now, Ansible cannot work natively on a Windows host. So there is no direct way to install Ansible on Windows OS. However, there are different ways to use Ansible on Windows for practice purposes.
https://www.redhat.com/en/topics/automation/learning-ansible-tutorial
The word “DevOps” is combination of Development + Operations , It is practice which helps both IT streams to work collaboratively rather than in silos.
Before DevOps, We had below respective responsibilities of each teams.
Development Team:- Use to build the take months together time to build application and once application is tested in their local environment, It used to handed over to operation team.
Operations Team:- Used to do deployment into test preprod and prod environment and support the application as well as the servers which has hosted these applications.
There was always an issue with owning responsibility for any bugs raised in higher environments. Development team used to say this issues is not development issue and works fine in my local environment.
Operations Team is to complain, this issue wasn’t there in previous release. So debate used to happen for each release and direct impact is on the customers.
As part of DevOps culture, It bridges the gap between development and operations teams. This was missing before.
https://azure.microsoft.com/en-gb/overview/what-is-devops/
Terraform is an open source infrastructure as code tool. HashiCarp has developed it.
Terraform is used by almost all experts/engineers to create any cloud infrastructure. Terraform is go to tool for all the Cloud Engineers.
Below are the key benefits of terraform
Currently terraform is go to tool for any infrastructure provisioning tasks.
Below are the main reasons
In order to install terraform please download appropriate package for your system as zip.
Below are main commands used in terraform
https://www.terraform.io/intro/index.html
https://learn.hashicorp.com/terraform?utm_source=terraform_io
| Postion | CSP | GA for public | Logo |
| 1 | AWS (Amazon Web Services) | 14th-Mar-2006 |  |
| 2 | Microsoft Azure | 27th-Oct-2008 |  |
| 3 | GCP (Google Cloud Platform) | 07th-Apr-2008 |  |
| 4 | OCI (Oracle Cloud Infrastructure) | 20th-Oct-2016 |  |
Before, cloud computing companies used to have their own data centres. Companies used to have mainly two types of expenditure on servers, Capex & Opex.
Cloud computing doesn’t mean computers are in the cloud. It is actually on a safe, secure location. We call it a data centre.
Cloud Computing, Is On Demand delivery of IT resources. We just need a laptop/Desktop and internet connection to access it.
Pay-as-you-go pricing, We pay for what we use. If you don’t want to use Cloud IT resources before 8 a.m. or after 5 p.m. or during the weekend then delete resources whenever after using IT resources.
Whenever IT resources are required, Just create it via automation.There is no capex or opex cost involved here. No need to buy or maintain the servers.
