2)Advantage of Chef?

* Accelerating Software Delivery

* Increasing Service Resiliency

*Improving Risk Management

*Accelerating Cloud Adoption

* Managing Both Data Center and Cloud Environments

* Delivering All Your Infrastructure – Any App, Everywhere, Continuously

3)How to install Chef Workstation?

Start your infrastructure automation quickly and easily with chef workstation  . Chef Workstation gives you everything you need to get started with Chef – ad hoc remote execution, remote scanning, configuration tasks, cookbook creation tools as well as robust dependency and testing software – all in one easy-to-install package.

Chef Workstation includes:

• Chef Infra Client
• Chef InSpec
• chef and knife command line tools
• Testing tools such as Test Kitchen, ChefSpec, and Cookstyle
• Everything else needed to author cookbooks and upload them to the Chef Infra Server

automatic security in the ci pipeline

automatic security in the cd pipeline

reduce development time

reduce development cost

A declarative coding tool, Terraform enables developers to use a high-level configuration language called HCL (HashiCorp Configuration Language) to describe the desired “end-state” cloud or on-premises infrastructure for running an application. It then generates a plan for reaching that end-state and executes the plan to provision the infrastructure.

2)One example terraform program

variable “include_ec2_instance” 

{

 type = bool default = true

 } 

resource “aws_instance” “example”

 { 

count = var.include_ec2_instance ? 1 :0 # (other resource arguments…) 

} 

output “instance_ip_address”

 {

 value = one(aws_instance.example[*].private_ip) 

}

3)List of 5 terraform commands and its use

  import             Import existing infrastructure into Terraform
  apply              Builds or changes infrastructure
  get                Download and install modules for the configuration
  push               Upload this Terraform module to Terraform Enterprise to run
 refresh            Update local state file against real resources

 2)5 reasons of using kubernetes

Free Cloud Solution

Open-Source Community:

portability and flexibility

Performance Optimisations:

Trust:

3)Each kubernetes Components & write 2-3 mins about each one of them.

Control Plane:

The control plane’s components make global decisions about the cluster (for example, scheduling), as well as detecting and responding to cluster events (for example, starting up a new pod when a deployment’s replicas field is unsatisfied).

• apiserver: As its name suggests the API server exposes the Kubernetes API, which is communications central. External communications via command line interface (CLI) or other user interface (UI) pass to the kube-apiserver, and all control plane to node communications also goes through the API server.
• etcd: The key value store where all data relating to the cluster is stored. etcd is highly available and consistent since all access to etcd is through the API server. Information in etcd is generally formatted in human-readable YAML (YAML Ain’t Markup Language).
• scheduler: When a new Pod is created, this component assigns it to a node for execution based on resource requirements, policies, and ‘affinity’ specifications regarding geolocation and interference with other workloads.
• controller-manager: Although a Kubernetes cluster has several controller functions, they are all compiled into a single binary.

It is mainly used as a software development platform for developing distributed applications that work efficiently in different environments. By making the software system agnostic, developers don’t have to worry about compatibility issues. Packaging apps into isolated environments (containers) also makes it easier to develop, deploy, maintain, and use applications.

2) What is Container? – – 5 lines with 1 images

A standard package of software—known as a container—bundles an application’s code together with the related configuration files and libraries, and with the dependencies required for the app to run. This allows developers and IT pros to deploy applications seamlessly across environments. Get started with Docker.

3)What are top 5 advantage of Docker?

1. Faster time to market
2. Developer Productivity
3. Deployment velocity
4. IT infrastructure reduction
5. IT operational efficiency
6. Faster issue to resolution
7. Portability

4)What are top 10 commands you used today and oneline explnations.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐩𝐬 – Lists various properties of containers.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐫𝐞𝐬𝐭𝐚𝐫𝐭 – Stops and starts a container.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐩𝐮𝐥𝐥 – Pulls an image or a repository from your local registry

𝐝𝐨𝐜𝐤𝐞𝐫 𝐡𝐢𝐬𝐭𝐨𝐫𝐲 – Displays the history of an image.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐬𝐭𝐚𝐫𝐭 – Starts already stopped containers.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐬𝐭𝐨𝐩 – Stops running containers.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐫𝐦 – Remove containers.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐫𝐦𝐢 – Remove images

docker info– Shows system-wide information.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐞𝐱𝐞𝐜 – Runs a command in a container that is active or running.

𝐝𝐨𝐜𝐤𝐞𝐫 𝐜𝐨𝐦𝐦𝐢𝐭 – Creates a new image from the current changed state of the container.

2)10 Advantange of the DevOps:

1)faster productivity release and faster time to market

2)process efficiency

3)higher productivity

4)shortened production cycles

5)better operational cycles

6)better customer experience management

7)increased product quality

8)better team efficiency

9)improved flexibility and support

10)reduced chance of product failure

3)Top 10 Tools used in DevOps?

git

gradle

selenium

jenkins

puppet

chef

docker

kubernetes

ansible

eG enterprises

4)How to implement DevOps?

1. Making the DevOps Mentality Switch

2. Take Stock of Your Existing Business Processes

3. Collect Actual User Feedback

4. Gather a Diverse, Qualified Team to Build Your DevOps Strategy

5. Source and Allocate Resources

6. Pilot your DevOps Strategy with Devs, Ops and QA

7. Monitor the DevOps Implementation