Q13) How do I see a list of all the ansible_ variables?
Ansible by default gathers “facts” about the machines, and these facts can be accessed in Playbooks and in templates. To see a list of all the facts that are available about a machine, you can run the “setup” module as an ad-hoc action:
Ansible -m setup hostname
This will print out a dictionary of all the facts that are available for that particular host.
Q14) What is Docker?
Docker is a containerization technology that packages your application and all its dependencies together in the form of Containers to ensure that your application works seamlessly in any environment.
Q15) What is Docker image?
Docker image is the source of Docker container. Or in other words, Docker images are used to create containers.
Q16) what is Docker Container?
Docker Container is the running instance of Docker Image.
Q17) Can we consider DevOps as Agile methodology?
Of Course, we can!! The only difference between agile methodology and DevOps is that, agile methodology is implemented only for development section and DevOps implements agility on both development as well as operations section.
Q18) what are the advantages of using Git?
1. Data redundancy and replication
2. High availability
3. Only one. git directory per repository
4. Superior disk utilization and network performance
5. Collaboration friendly
6. Git can use any sort of projects.
Q19) what is kernel?
A kernel is the lowest level of easily replaceable software that interfaces with the hardware in your computer.
Q20) what is difference between grep -i and grep -v?
I ignore alphabet difference V accept this value ex) ls | grep -i docker Dockerfile docker.tar.gz ls | grep -v docker
Desktop
Dockerfile
Documents
Downloads
You can’t see anything with name docker.tar.gz