2. 10 advantages of chef.

1. accelerating software delivery
2. Increasing Service Resiliency
3. Improving Risk Management
4. Accelerating Cloud Adoption
5. Managing Both Data Center and Cloud Environments
6. Delivering All Your Infrastructure
7. efficiency
8. flexibilty
9. accessibility
10. performance

3.how to install chef workstation?

1. Requirements. Infrastructure Overview.
2. Quick Start guide. Install Workstation. Automate Server. Cookbook Setup. Set up Policy. Set up Nodes.
3. Configure.
4. Enrollment. Application Management. Enrollment. Application Management.

4. one example program of recipe

node.default[‘main’][‘doc_root’] = “/vagrant/web”

execute “apt-get update” do
command “apt-get update”
end

2. 5 reasons of using kubernetes.

1. It overcomes the problem of container.
2. It manages multiple docker hosts.
3. Its open source.
4. Scalability
5. Efficiency

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

1. API server – It is responsible for all the services of kubernetes. It also takes care of its functions.
2. ETCD – It stores the data of k8 cluster. It acts like a database.
3. Scheduler – It assigns work to the worker. It will also communicate with the kubelet if required.
4. Controller manager – It controls the worker state. It validates if requied.
5. Kube proxy – It looks about the networking services. It aids in assigning IP to the POD.
6. Network driver – It is a networking driver. Kubeadm triggers this if required.

2. What is container?

1. A container is a fully independent application runtime environment.
2. It helps in running the applications.
3. The container has a workflow for managing applications.
4. Its has many packages of software
5. It is an advance approach of solving.

3. What are top 5 advantages of docker?

1. efficient
2. flexible
3. easy
4. cost effective
5. secure

4. What are the top 10 commands I used today and one line explanation ?

1. docker images – displays the image details in a tabular form.
2. docker stop {container id} – it stops that container specified.
3. docker create httpd – creates the container
4. exit – used to exit the container
5. docker exec -it (cont id) bash – Helps to move inside the container
6. docker inspect (cont id) – Gives information about the container.
7. docker commit -m”ub-up-git-ap-java” -a “rajesh Kumar” 76e6a965fb86 ramukaka – It will create an image out of the container id specified.
8. docker ps -a – displays the list of details
9. docker rm (cont id) – removes that container from the list
10. docker restart (cont id) – Restarts the container specified.

10 advantages of DevOps

1. scalability
2. automation
3. smooth workflow
4. high productivity
5. great connect
6. good monitoring
7. open source
8. profitability
9. supports development models
10. high growth

Top10 tools used in DevOps

1. git
2. docker
3. jenkins
4. jira
5. selenium
6. kubernetes
7. cucumber
8. puppet
9. chef
10. splunck

How to implement DevOps

On following the various steps like code, automated build(which combines to agile development), automated integration(continuous integration),automated testing(continuous delivery), automated release(continuous deployment), automated operation which finally on clubbing all the above would implement DevOps.