CI CD Deployment builds

Question 1

DVCS’s

Answer 1

Distributed Version Control Systems
(GIT, Mercurial, Bazaar or Darcs)
Clients back up not just files but full backup of all data.

Thus if any server dies & theses systems were collaborating via that server any of the client data can be copied back up to the server to be restored.

Question 2

CVCs’s

Answer 2

Centralized Version Control Systems

Theses Systems have a single server that contains all the versioned files, and a number of Clients that check out files from that central place.

Question 3

Local Version Control Systems

Answer 3

Local VCSs have a simple database that keeps all the changes to files under revision control.

Question 4

What is VCS

Answer 4

Virtual Control System

It allows you to revert selected files back to previous state, revert entire project back to a previous state, compare changes over time, see who last modified something that could be cause problems and more.

If you screw up and lose files a VCS will help by easily recovering them.

Question 5

Version Control

Answer 5

A system that records changes to a file or files over time so that you can recall specific versions later.

Question 6

Build

Answer 6

A version of the Software that the dev. team hands to the testing team for testing purposes.

or

Compilation process, where source code files(text) are converted into executable code.

Question 7

Software Deployment

Answer 7

All the activities that make a software available for use.

Question 8

Whats a Pipeline?

Answer 8

Pipeline A.K.A Data pipeline is a set of data processing elements connected in a series

Output of one element is the input of the next element.

Elements of a pipeline are done in parallel to each other.

Question 9

Continuous Delivery (CD)

Answer 9

A software engineering approach in which teams produce software in short cycles.

This ensures Software can be reliably released at any time (oftentimes manually)

The aim is to build, test, and release software with speed and much frequency.

CD approach reduces cost, time and risk

Question 10

Continuous Integration (CI)

Answer 10

development practice where developers integrate code into a shared repository frequently.
(preferably several times a day)

Each integration can then be verified by an automated build and automated tests.

Among them are revision control, build automation and automated testing.

Question 11

Continuous Deployment

Answer 11

is a similar to CD (continuous delivery) this approach in software is also produced in short cycles BUT through automated deployments rather than manual ones.

Basically this is an automated way to produce Software in short cycles….(NOT MANUAL!)

Question 12

Software Environments

Answer 12

Environments refers to the collection of hardware and software tools a system developer uses to build software systems.

Question 13

Development Environment

Answer 13

Main environment of a developer where devs:
* do all their code updates
*all of commits and branches live.
*dev environment ususally made different than the user work environment.

Question 14

What do Developers do?

Answer 14

Once a dev gets a story, they work on it locally on their computer and can use simulators/emulators.

Also do some light smoke and feature testing but not much because they are busy writing code.

Question 15

Sandbox

Answer 15

is an isolated testing environment that enables users to run programs or open files without affecting the application

Question 16

QA Environment

Answer 16

This is where we will explore.

Where we test to ensure functionality and app works as expected.

Once entire team is happy to cut a build the build is deployed onto Staging.

Question 17

Staging Environment

Answer 17

Used by QA team for testing and other teams to perform UAT.

This environment is as similar to the production environment as it can be.

The scope of tests in Staging is to ensure the app. under test meets requirements and expectations. Functionality works perfectly and application is good to go to production.

Question 18

Production Environment

Answer 18

Where users access the final code after all of the updates and testing.

GOING LIVE!!

This is the most important environment. Because this is where companies make their money.